Phenyl Amino Research Articles

Derivatives of 2-Pyridone Exhibiting Hot-Exciton TADF for Sky-Blue and White OLEDs.

Development of emissive materials for utilization in organic light-emitting diodes (OLEDs) remains a highly relevant research field. One of the most important aspects in the development of efficient emitters for OLEDs is the efficiency of triplet-to-singlet exciton conversion. There are many concepts proposed for the transformation of triplet excitons to singlet excitons, among which thermally activated delayed fluorescence (TADF) is the most efficient and widespread. One of the variations of the TADF concept is the hot exciton approach according to which the process of exciton relaxation into the lowest energy electronic state (internal conversion as usual) is slower than intersystem crossing between high-lying singlets and triplets. In this paper, we present the donor-acceptor materials based on 2-pyridone acceptor coupled to the different donor moieties through the phenyl linker demonstrating good performance as components of sky-blue, green-yellow, and white OLEDs. Despite relatively low photoluminescence quantum yields, the compound containing 9,9-dimethyl-9,10-dihydroacridine donor demonstrated very good efficiency in sky-blue OLED with the single emissive layer, which showed an external quantum efficiency (EQE) of 3.7%. It also forms a green-yellow-emitting exciplex with 4,4',4″-tris[phenyl(m-tolyl)amino]triphenylamine. The corresponding OLED showed an EQE of 6.9%. The white OLED combining both exciplex and single emitter layers demonstrated an EQE of 9.8% together with excellent current and power efficiencies of 16.1 cd A-1 and 6.9 lm W-1, respectively. Quantum-chemical calculations together with the analysis of photoluminescence decay curves confirm the ability of all of the studied compounds to exhibit TADF through the hot exciton pathway, but the limiting factor reducing the efficiency of OLEDs is the low photoluminescence quantum yields caused mainly by nonradiative intersystem crossing dominating over the radiative fluorescence pathway.

Synthesis and characterization of p-carboxy phenyl amino maleimide-g-cellulose acetate/ZrO2 nanocomposite membrane for water desalination

Abstract The reaction of p-carboxy phenyl amino maleimide (CHM) with cellulose acetate (CA) led to the formation of a modified cellulose acetate polymer (MCA), which was characterized by UV/Vis, 1H NMR, and 13C NMR. The active sites of the reaction were the –NH group of (CHM) and the OAc of CA. CA was grafted with (CHM) to build branches on its main chains, using benzoyl peroxide as an initiator. The results of 1H NMR and 13C NMR revealed the presence of (CHM) moieties inside the polymeric matrix. The (CA-g-CHM) ZrO2 was fabricated into a membrane, using a phase inversion technique. The effect of ZrO2 content on the water flux was discussed. The SEM/EDS was also used to characterize the membrane contents and morphology. The morphology of the membrane showed the grafted parts and the EDS confirmed the presence of nitrogen atoms in the polymeric matrix. The thermogravimetry (TGA) results showed that the membrane exhibited high thermal stability which would adjust the membrane for the desalination process. The desalination test indicated the removal of NaCl salt by the membrane, as shown by the EDS and 1H NMR spectroscopy results. The membrane exhibited good antibacterial and antifungal properties.

Synthesis and anti-tubercular evaluation of some novel (E)-5-(4-(benzylidene amino) phenyl)-1,3,4-oxadiazole-2-thiol derivatives

BackgroundTuberculosis remains a ninth global health cause affecting millions of people. The susceptibility and resistance caused by first and second-line drugs have not changed for decades. There is a need to develop novel drugs with better pharmacological profiles. MethodsIn this study, a series of (E)-5-(4-(benzylidene amino) phenyl)-1,3,4-oxadiazole-2-thiol derivatives were synthesized, docked, and ADMET studies were performed. Based on binding affinity, the compounds were evaluated for their ability to inhibit the M. tuberculosis H37Rv strain. ResultsThe compounds showed binding energy between −8.2 and −10.0 Kcal/mol. Molecular simulations benefited the representation of the actual biological conditions with a significant outcome. The compound 5-(4-{(E)-[(2-nitrophenyl) methylidene] amino} phenyl)-1,3,4-oxadiazole-2-thiol (R4) showed the best binding −10.0 Kcal/mol, MIC of 0.8 µg/ml, the IC50 value of 49.01 and the Selectivity Index of 61.33. The synthesized compounds were evaluated for anti-mycobacterial activity against M. tuberculosis (H37Rv) using MABA assay and compared with the standards; R3 and R4 were sensitive at 0.8 µg/ml. ConclusionAmong the designed compounds 5-(4-{(E)-[(2-nitrophenyl)methylidene]amino}phenyl)-1,3,4-oxadiazole-2-thiol showed the best activity with higher IC50 values. As a result, molecular hit can be good lead for further development for tuberculosis treatment.

Synthesis and photodynamic antimicrobial chemotherapy against multi-drug resistant Proteus mirabilis of ornithine-porphyrin conjugates in vitro and in vivo.

For the treatment of bacterial infections, photodynamic antimicrobial chemotherapy (PACT) has the advantage of circumventing multi-drug resistance. In this work, new cationic photosensitizers against multi-drug resistant Proteus mirabilis (MRPM) were designed and synthesized by the conjugation of amino phenyl porphyrin with basic amino acid L-ornithine. Their photoinactivation efficacies against MRPM in vitro were reported and include the influence of laser energy, uptake, MIC and MBC, dose-dependent photoinactivation effects, membrane integrity, and fluorescence imaging. The PACT in vivo was evaluated using a wound mouse model infected by MRPM. Photosensitizer 4d displayed high photo inactivation efficacy against MRPM at 7.81 μM under illumination, and it could accelerate wound healing via bactericidal effect. These ornithine-porphyrin conjugates are potential photosensitizers for PACT in the treatment of MRPM infection.

A ratiometric fluorescent probe for simultaneous detection of L-ascorbic acid and alkaline phosphatase activity based on red carbon dots/polydopamine nanocomposite

Herein, efficient red carbon dots (R-CDs) were synthesized by one-step hydrothermal treatment of N-(4-amino phenyl) acetamide and (2,3-difluoro phenyl) boronic acid. The optimal emission peak of R-CDs was at 602 nm (under 520 nm excitation) and the absolute fluorescence quantum yield of R-CDs was 12.9%. Polydopamine, which was formed by the self-polymerization and cyclization of dopamine in alkaline condition, emitted characteristic fluorescence with peak position of 517 nm (under 420 nm excitation) and affected the fluorescence intensity of R-CDs through inner filter effect. L-Ascorbic acid (AA), which was the hydrolysis product of L-ascorbic acid-2-phosphate trisodium salt under the catalytic reaction of alkaline phosphatase (ALP), effectively prevented the polymerization of dopamine. Combined with the ALP-mediated AA production and the AA-mediated polydopamine generation, the ratiometric fluorescence signal of polydopamine with R-CDs was correlated closely with the concentration of both AA and ALP. Under optimal conditions, the detection limits of AA and ALP were 0.28 μM during linear range of 0.5–30 μM and 0.044 U/L with linear range of 0.05–8 U/L, respectively. This ratiometric fluorescence detection platform can efficiently shield the background interference of sophisticated samples by introducing a self-calibration as reference signal in a multi-excitation mode, which can detect AA and ALP in human serum samples with satisfactory results. Such R-CDs/polydopamine nanocomposite provides a steadfast quantitative information and makes R-CDs be excellent candidate for biosensors via combining target recognition strategy.

Surface Equilibration Mechanism Controls the Stability of a Model Codeposited Glass Mixture of Organic Semiconductors

While previous work has identified the conditions for preparing ultrastable single-component organic glasses by physical vapor deposition (PVD), little is known about the stability of codeposited mixtures. Here, we prepared binary PVD glasses of organic semiconductors, TPD (N,N'-Bis(3-methylphenyl)-N,N'-diphenylbenzidine) and m-MTDATA (4,4',4″-Tris[phenyl(m-tolyl)amino]triphenylamine), with a 50:50 mass concentration over a wide range of substrate temperatures (Tsub). The enthalpy and kinetic stability are evaluated with differential scanning calorimetry and spectroscopic ellipsometry. Binary organic semiconductor glasses with exceptional thermodynamic and kinetic stability comparable to the most stable single-component organic glasses are obtained when deposited at Tsub = 0.78-0.90Tg (where Tg is the conventional glass transition temperature). When deposited at 0.94Tg, the enthalpy of the m-MTDATA/TPD glass equals that expected for the equilibrium liquid at that temperature. Thus, the surface equilibration mechanism previously advanced for single-component PVD glasses is also applicable for these codeposited glasses. These results provide an avenue for designing high-performance organic electronic devices.

Amino Phenyl Copper Phosphate-Bridged Reactive Phosphaphenanthrene to Intensify Fire Safety of Epoxy Resins.

To improve the compatibility between flame retardant and epoxy resin (EP) matrix, amino phenyl copper phosphate-9, 10-dihydro-9-oxygen-10-phospha-phenanthrene-10-oxide (CuPPA-DOPO) is synthesized through surface grafting, which is blended with EP matrix to prepare EP/CuPPA-DOPO composites. The amorphous structure of CuPPA-DOPO is characterized by X-ray diffraction and Fourier-transform infrared spectroscopy. Scanning electron microscope (SEM) images indicate that the agglomeration of hybrids is improved, resisting the intense intermolecular attractions on account of the acting force between CuPPA and DOPO. The results of thermal analysis show that CuPPA-DOPO can promote the premature decomposition of EP and increase the residual amount of EP composites. It is worth mentioning that EP/6 wt% CuPPA-DOPO composites reach UL-94 V-1 level and limiting oxygen index (LOI) of 32.6%. Meanwhile, their peak heat release rate (PHRR), peak smoke production release (PSPR) and CO2 production (CO2P) are decreased by 52.5%, 26.1% and 41.4%, respectively, compared with those of EP. The inhibition effect of CuPPA-DOPO on the combustion of EP may be due to the release of phosphorus and ammonia free radicals, as well as the catalytic charring ability of metal oxides and phosphorus phases.

Synthesis, Structural Elucidation, and Biological Potential of Novel Sulfonamide Drugs

Sulfonamides are anti-microbial and anti-inflammatory agents used widely for the treatment of infections. The current research dealt with the synthesis of four sulfonamides formed by the reaction of p-toluenesulfonyl chloride with 4-amino phenyl acetic acid, 5-amino isophthalic acid, 4-piperidine carboxylic acid, and toluidine. The respective structures of sulfonamide drugs were verified by elemental analysis (CHNS), FT-IR spectroscopy, and thermogravimetry. The elemental analysis (CHNS) data conformed to the proposed chemical composition of the products 1-4. The FT-IR spectra verified the formation of sulfonamide drugs. Thermogravimetric analysis (TGA) of data in the range of 25-800oC showed that the evolved components and residues were in good agreement with the molecular skeletons of the products. The antibacterial potential of sulfonamide drugs was evaluated against bacterial strains using the disc diffusion method. The zones of inhibition were found to be larger against Escherichia coli as compared to Bacillus Subtilis. Cytotoxicity of products was in the acceptable range of 0.3-3.1%, as compared to triton X100. It indicates the safety of these products as future medicinal drugs for human beings.

(S,S)-1-(Phenyl((1′-4-nitrophenyl-ethyl)amino)methyl)-2-naphthol

The Betti reaction of 2-naphthol, benzaldehyde and (S)-1-(4-nitrophenyl)ethylamine without any solvent gave the corresponding aminobenzylnaphthol, that is the (S,S)-1-(phenyl((1′-4-nitrophenyl-ethyl)amino)methyl)-2-naphthol, in good yield (56%). The absolute configuration of the title compound was attributed by NMR analysis, a procedure that is reliable if compared with the data obtained by X-ray diffraction experiments.

Tetraphenylethylene and porphyrin-based covalent organic framework with square lattice for effective photocatalytic hydrogen evolution

A crystalline, bi-photoelectric structural unit 2D periodic square lattice covalent organic framework was designed and target synthesized by the Schiff base condensation between 1,1,2,2-tetra(4-formyl-(1,1′-biphenyl)) ethene and 5,10,15,20-tetrakis(4-amino phenyl)-21H,23H-porphyrin with AA stacking structures, named as TP-COF. The TP-COF exhibited good photoelectric response combined with good crystallinity and high specific surface area (1812 m2 g−1). TP-COF with an optical bandgap of 1.80 eV can be used as a visible light responsive photocatalyst, and the speed of hydrogen evolution by TP-COF could achieve up to 58.4 μmol g−1h−1 under visible light irradiation. The efficient photocatalysis performance could be attributed to the photogenerated charge separation and transport of TP-COF by the fluorescence resonance energy transfer (FRET) from tetraphenylethylene to porphyrin. The successful preparation of this type of COF according to the designed structure provides a new way to realize photocatalyst targeting synthesis for better photocatalysis.

The saturated red electrophosphorescence based on phenylquinoline iridium complexes with fluorenyl unit

Novel complexes bis[2-(4-(9,9-diethylfluoren-2-yl)phenyl)-4-phenylquinolyl-C2, N] iridium, bis[2-[4-(9,9-bis(4-diphenylaminophenyl)fluoren-2-yl)phenyl]-4-phenyl- quinolyl-C2, N]iridium, bis[2-[4-(N-3,5-dimethylphenyl-N-9,9-diethylfluoren-2-yl- amino)phenyl]-4-phenylquinolyl-C2,N]iridium (with 2-picolinic acid or acetylacetonate) were prepared. The group with large steric hindrance, such as 9,9-diethylfluorenyl, triphenylaminofluorenyl or N-3,5-dimethylphenyl-N-9,9-diethylfluorenylamino, was connected to 2-phenylquinoline Ir complex to enhance the hole injection and transport ability and to restrain intermolecular interaction, which promoted luminous efficiency and tuned luminescent emission. The devices presented stable electroluminescent (EL) peaks at about 620 and 600 nm, Commission Internationale de L'Eclairage (CIE) coordinates of (0.67, 0.33) possessed maximum current (or external quantum) efficiencies of 15.4 cd/A (or 10.2%). Slow decay and high efficiency of devices indicated that the red emitters were promising. In addition, the main EL parameters of similar doped red OLEDs based on phenylquinoline Iridium acetylacetonate were briefly compared.

The Efficacy of New Liquid Laser Dye Material – Chalcone: 1-(4-methylsulfonyl phenyl)-3-(4-N,N-dimethyl (amino phenyl)-2-propen-1-one (MSPPP)

This paper includes the efficacy of synthesis and characterization of a new liquid laser dye material – chalcone of 1-(4-methylsulfonyl phenyl)-3-(4-N,N-dimethyl (amino phenyl)-2-propen-1-one (MSPPP) and its application as a new laser medium. The absorption and fluorescence spectra of MSPPP were investigated under different solvents and concentrations. The study investigated the pump pulse energies of Nd: YAG laser (355 nm) and the amplified spontaneous emission (ASE) performance of MSPPP under various concentrations, and organic solvents. At identical conditions, the amplified spontaneous emission spectra of MSPPP in solution were compared with a conventional laser dye of coumarin 503. The fluorescence quantum yield and the gain of MSPPP were determined. The features are: (I) MSPPP has stellar photochemical stabilization., (II) ASE from the MSPPP was setting in the wavelength range between 515 and 548 nm. The molecular geometry was optimized and their HOMO– LUMO energy values were determined by SCM Software for Chemistry & Materials using DFTB (GGA BLYP) [Density-Functional based Tight-Binding] method.

Spectrophotometric methods for estimation of amlodipine besylate in pure form and in it’s pharmaceutical formulations

Two unexpensive, sensitive, reproducible UV- spectrophotometric methods were developed for the determination of Amlodipine Besylate (ADB) in pure form and in pharmaceutical dosage forms. The first method was using Crystal violet dye (CV) as reagent (Tris (4-dimethyl amino) phenyl) methylium chloride). This method relied on oxidizing (ADB) in acidic medium in presence of an oxidizing agent of potassium bromide: potassium bromate (KBr:KBrO3) to form a blue colored product of absorbance at λmax 592 nm, It obeys the Beer's law in a concentrations range of (5-92.5) µg/ml with a molar absorptivity (2.13×105) L/mole.cm and the limit of detection is (0.01) µg/ml. The second method includes the reduction reagent p-nitroaniline using a nitrogenous agent (NaNO2) in an acidic medium followed coupling reaction between (ADB) and p-nitroaniline to form yallow product has absorbance at λmax 368 nm, It obeys the Beer's law in a concentrations range of (10-200) µg/ml with a molar absorptivity (3.42×105) L/mole.cm and the limit of quantification is found to be (0.01) µg/ml. The tow proposed methods are successfully applied for measuring the quantity of (ADB) in pure form and in tablets formulations.

Modeling the catalytic conversion of anthracene oil fraction to light aromatics over mesoporous HZSM-5

Silanization of zeolite units has been proved to be an effective way to improve the hierarchical porosity of HZSM-5. Mesoporous HZSM-5 (YJGW-X: X = 0, 5, 10) were synthesized by adopting phenyl amino propyl trimethoxy silane (YJGW) with different addition (0 wt%, 5 wt% and 10 wt%), followed were applied to investigating the interaction between the compounds of various categories during the conversion process of anthracene oil fraction of low temperature coal tar. Model compounds (MCs), which including naphthol (Nap-ol), methyl naphthalene (Nap-met), methyl anthracene (Ant-met) and C22 alkanes (C22), are selected as raw materials to investigate the conversion progress of anthracene oil fraction of low temperature coal tar using Py-GC/MS. Results show that YJGW addition has a significant role on the acidity and pore size. Besides, the higher aromatic selectivity exhibited by YJGW-5 and YJGW-10 compared to YJGW-0 in the catalytic pyrolysis of single MCs indicates that the addition of YJGW does facilitate the hydrocracking of polycyclic aromatics hydrocarbons to prepare small reactive molecules. When mixed MCs pyrolyzed using YJGW-X, the experimental yield of BTEXN (benzene, toluene, ethyl-benzene, xylene and naphthalene) is higher than theoretical one. When pyrolyzed at 450 °C, the highest experimental yield (2578.35 mg/kg) of BTEXN is obtained using YJGW-10, owing to its appropriate pore structure and acidity. Moreover, the possible formation mechanism of BTEXN derived from MCs catalytic pyrolysis was proposed on the basis of structural features and catalytic performances of YJGW-X.

Evaluation Of Antioxidant Activity Of 1, 2, 4-Triazole Derivatives With Morpholine Moiety

The aim of the work was to study the antioxidant activity of 4-R-3- (morpholinomethyl)-4H-1,2,4-triazole-5-thioles and their alkyl derivatives in vitro using the method of non-enzymatic initiation of lipid peroxidation. Among the 45 compounds studied, 8 showed varying degrees of AOA. The most pronounced AOA has 4-amino-3-(morpholinomethyl)-4H-1,2,4-triazole-5-thiol. It was found that in most cases the introduction in alkyl-derivatives of 4-R-3-(morpholinomethyl)-4H-1,2,4-triazole-5-thioles free amino group or phenyl substituent to the N4 atom of the 1,2,4-triazole nucleus, accompanied with increasing of AOA for test substances. In almost all cases, the presence on the N4 atom of 1,2,4-triazole nucleus methyl or ethyl groups has the opposite effect, even in comparison with control groups.

Energy Level Alignment of Formamidinium Tin Iodide in Contact with Organic Hole Transport Materials

Tin‐based perovskites provide environmentally less problematic alternatives to established lead halide‐based absorbers used in today's most efficient perovskite solar cells. However, tin‐based cells still suffer from reduced power conversion efficiency and stability when compared to lead‐based analogues. To facilitate the adoption of the very successful n–i–p cell geometry, efficient contact to hole transport materials (HTMs) is needed that can be deposited on top of the tin‐based perovskite layer, ideally by physical vapor deposition to protect the underlying perovskite. As possible candidates for such HTMs, the growth and the interface formation of 4,4',4''‐tris[phenyl(m‐tolyl)amino]triphenylamine (m‐MTDATA), pentacene, and copper phthalocyanine with formamidinium tin iodide by Kelvin probe force microscopy are systematically studied. For the contact to m‐MTDATA, the formation of a Mott–Schottky junction is revealed, whereas an interfacial dipole is formed for the latter two. Doping densities within the organic semiconductor are determined and indicate ion migration from the perovskite.

Active Quinolinequinones against Methicillin-Resistant Staphylococcus spp.

Serious bacterial infections could be caused by Gram-positive microorganisms, in particular methicillin-resistant Staphylococcus aureus and Staphylococcus epidermidis. Aiming to address this challenging issue by developing the potent and selective antimicrobial lead structures against methicillin-resistant Staphylococcus spp., herein, we report in vitro evaluation of quinolinequinones (QQ1-QQ10) against the Gram-negative and Gram-positive strains using the broth microdilution technique. The design principle of the quinolinequinones was based on the variation of the structures attached to the 1,4-quinone moiety and substituent(s) within amino phenyl moiety. A series of ten quinolinequinones displayed activity mainly against the Gram-positive strains with a minimal inhibitory concentration (MIC=1.22-1250 mg/L) within the Clinical and Laboratory Standards Institute (CLSI) levels. Interestingly, QQ3, QQ5, and QQ6 displayed equal antibacterial inhibitory activity against S. aureus (MIC=1.22 mg/L), respectively, to the standard positive control Cefuroxime-Na. QQ2, QQ3, and QQ5 had the best inhibitory activity with the MIC value of 1.22 mg/L (4-fold more potent compared reference standard Cefuroxime) against S. epidermidis. On the other hand, QQ3 was the most effective quinolinequinone against fungi, in particular C. albicans. The identified lead quinolinequinones (QQ3 and QQ5) with a comprehensive analysis of structure-activity relationships and further studies showed high activity against methicillin-resistant Staphylococcus spp. It is worth noting that the isopropyl group has importance for excellent bioactivity. Remarkably, the in vitro antibiofilm and bactericidal activities (each of 32 clinically obtained strains of Gram-positive bacteria) of the selected two quinolinequinones (QQ3 and QQ5) have been evaluated for the mode of action in addition to the time-kill curve study.

Highly sensitive determination of acetaminophen and 4-aminophenol based on COF/3D NCNF-T/Au NPs composite electrochemical sensing platform

As a new kind of porous organic material, covalent organic framework materials (COFs) have many advantages and have been widely used in catalysis, sensing, drug delivery, gas separation and other fields. In this paper, A COF was successfully prepared based on Schiff base reaction of 1, 3, 6, 8-tetrakis(4-formyl phenyl) pyrene (TFPPy) and 1, 3, 6, 8-tetrakis(4-amino phenyl) pyrene (PyTTA) named as TF-Py COF, and its structure was characterized in detail. By physically combining a pre-prepared three-dimensional carbon material containing nitrogen (3D NCNF-T) and TF-Py COF, followed by deposition of AuNPs, relatively poor conductivity of TF-Py COF was efficiently overcome and a novel electrochemical sensing platform with high sensitivity and high selectivity for simultaneous detection of acetaminophen (ACOP) and 4-aminophenol (4-AP) was successfully constructed. The synergistic effect between TF-Py COF, 3D NCNF-T and AuNPs effectively improves the analytical sensitivity of target analytes. Under optimized experimental conditions, the electrochemical sensing platform has a sensitive volt-ampere response and a wide linear range to both ACOP and 4-AP, and the detection limits are 0.13 μM and 0.05 μM (S/N = 3), respectively. The sensor has been successfully applied to the determination of ACOP and 4-AP in acetaminophen tablets and Yellow River water samples, with high recovery rate, good selectivity and reproducibility, and strong anti-interference ability. It is expected to be widely used in the actual sample detection.

Electrochemical Immune-Determination of Alkaline Phosphatase Based on Gold Nanoparticle/Ti3C2Tx MXenes as the Sensing Platform by Differential Pulse Voltammetry (DPV)

The concentration of alkaline phosphatase (ALP) in serum is an important biomarker for human health, thus the development of a simple method for its determination is important. In this work, the gold nanoparticles/Ti3C2Tx (Au/Ti3C2Tx) MXenes nanohybrids were prepared via a simple self-reduction step and introduced as the sensing platform to immobilize ALP antibodies. Meanwhile, because ALP dephosphorylates 4-amino phenyl phosphate to produce electroactive 4-aminophenol (AP), a simple labeled-free immunosensor was constructed for ALP by recording the differential pulse voltammetry signal of AP. The detection conditions were optimized and the analytical performance was evaluated. Under the optimized conditions, a wide linear range (10.0 to 1500 U L−1) and low detection limit for ALP (4.0 U L−1) were achieved. Furthermore, the selectivity, stability and reproducibility of the immunosensor were investigated, demonstrating desirable results. The results show that the proposed immunosensor has potential applications for practical ALP determination.

Emissive Material Optimization for Solution-Processed Exciplex OLEDs

Exciplex or charge transfer blends can be emissive in a similar manner to thermally activated delayed fluorescent materials but without the requirement for covalent linkages. Exciplex blends have been mainly used in organic light-emitting diodes fabricated using thermal evaporation, which is in part due to the poor film forming properties of evaporable materials when processed from solution. In this paper, we report the synthesis of three oxadiazole derivatives designed to have good solubility and compare the properties with commercial 1,3-bis[2-(4-t-butylphenyl)-1,3,4-oxadiazo-5-yl]benzene (OXD-7). The acceptor materials have 4-(2-ethylhexyloxy)phenyl or 9,9-di-n-alkylfluoren-2-yl (where the alkyl groups are either n-propyl or n-hexyl) end groups as opposed to the 4-t-butylphenyl moieties of OXD-7. Neat films of the synthesized oxadiazole derivatives were found to have electron mobilities an order of magnitude higher than that of OXD-7. The oxadiazole derivatives were found to be miscible with the hole transporting 4,4′,4″-tris[phenyl(m-tolyl)amino]triphenylamine (m-MTDATA) with charge transfer emission from solution-processed films. The 4-(2-ethylhexyloxy)phenyl-oxadiazole derivative exhibited the best overall performance when blended with m-MTDATA, with the solution-processed films having a photoluminescence quantum yield of around 21 ± 3% and simple bilayer OLEDs having a maximum external quantum efficiency of 5.3 ± 0.3%.