Mn Chloride Research Articles

N-Oxide Coordination to Mn(III) Chloride.

We report on the synthesis and characterization of Mn(III) chloride (MnIIICl3) complexes coordinated with N-oxide ylide ligands, namely trimethyl-N-oxide (Me3NO) and pyridine-N-oxide (PyNO). The compounds are reactive and, while isolable in the solid-state at room temperature, readily decompose into Mn(II). For example, "[MnIIICl3(ONMe3)n]" decomposes into the 2D polymeric network compound complex salt [MnII(µ-Cl)3MnII(µ-ONMe3)]n[MnII(µ-Cl)3]n·(Me3NO·HCl)3n (4). The reaction of MnIIICl3 with PyNO forms varied Mn(III) compounds with PyNO coordination and these react with hexamethylbenzene (HMB) to form the chlorinated organic product 1-cloromethyl-2,3,4,5,6-pentamethylbenzene (8). In contrast to N-oxide coordination to Mn(III), the reaction between [MnIIICl3(OPPh3)2] and 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) resulted in electron transfer-forming d5 manganate of the [TEMPO] cation instead of TEMPO-Mn(III) adducts. The reactivity affected by N-oxide coordination is discussed through comparisons with other L-MnIIICl3 complexes within the context of reduction potential.

Circularly Polarized Photoluminescence in Chiral Hybrid Organic–Inorganic Manganese Halide Perovskites: From Bulk Materials to Exfoliated Flakes

AbstractLayered hybrid organic–inorganic metal‐halide perovskites (HOIPs) can acquire chirality from molecules incorporated into their structure showing exciting possibilities in optoelectronics and spintronics. However, researchers have focused their attention on the study of bulk compounds, namely unstable and toxic Pb HOIPs. Herein, the chiroptical properties of R‐ and S‐β‐methylphenethylammonium Mn chloride HOIPs are reported in both the bulk and the few‐layer limit as exfoliated flakes. Red photoluminescence (PL) emission originating from the octahedrally coordinated Mn2+ is observed, with a PL shift to longer wavelengths when passing from bulk to flakes. Circular dichroism and circularly polarized PL mirrored‐signals for enantiomers are found in bulk samples, while in flakes, a degree of circularly polarized emission (P) of up to 17% at 80 K is achieved, comparable to Pb‐based HOIPs. Moreover, angle‐resolved PL measurements on flakes show that the PL emission and P are isotropic. These findings highlight the potential of these HOIPs from bulk to flakes for spin‐optoelectronic applications.

Manganese Overexposure Alters Neurogranin Expression and Causes Behavioral Deficits in Larval Zebrafish.

Manganese (Mn), a cofactor for various enzyme classes, is an essential trace metal for all organisms. However, overexposure to Mn causes neurotoxicity. Here, we evaluated the effects of exposure to Mn chloride (MnCl2) on viability, morphology, synapse function (based on neurogranin expression) and behavior of zebrafish larvae. MnCl2 exposure from 2.5 h post fertilization led to reduced survival (60%) at 5 days post fertilization. Phenotypical changes affected body length, eye and olfactory organ size, and visual background adaptation. This was accompanied by a decrease in both the fluorescence intensity of neurogranin immunostaining and expression levels of the neurogranin-encoding genes nrgna and nrgnb, suggesting the presence of synaptic alterations. Furthermore, overexposure to MnCl2 resulted in larvae exhibiting postural defects, reduction in motor activity and impaired preference for light environments. Following the removal of MnCl2 from the fish water, zebrafish larvae recovered their pigmentation pattern and normalized their locomotor behavior, indicating that some aspects of Mn neurotoxicity are reversible. In summary, our results demonstrate that Mn overexposure leads to pronounced morphological alterations, changes in neurogranin expression and behavioral impairments in zebrafish larvae.

Hydrogen Bond-Driven Displacive Phase Transition and the Abrupt Optical/Magnetic Behavior in One-Dimensional Mn(II) Chloride Hybrid

Hydrogen Bond-Driven Displacive Phase Transition and the Abrupt Optical/Magnetic Behavior in One-Dimensional Mn(II) Chloride Hybrid

Synthesis and Characterization of Pyridine Acetohydrazide Derivative for Antimicrobial Cotton Fabric

An increase in textile resistance to antimicrobial agents has posed a pressing need for the development of new antimicrobials. Therefore, the antimicrobial characteristics of thiophene and pyridine acetohydrazide derivatives have been developed as novel textile-modified complexes exhibiting antibacterial agents. Synthesis and characterization of pyridyl-thienyl acetohydrazide derivative (AHZ) using NMR (13C and 1H) and FTIR. Modification of cotton fabric (CF) with acetohydrazide (AHZ) and metal chlorides of divalent Cr, Mn, Co, Ni, Cu, and Zn and trivalent Fe, and Cr. SEM-EDX and Fourier-transform infrared were utilized to characterize cellulose-based cotton fabric (CF) attached to AHZ and their metal (M) complexes. Antimicrobial activity was examined against two types of bacteria, namely S. aureus and E. coli, and two types of fungi, namely C. albicans and A. flavus. All modified samples exhibited higher efficiency towards bacterial strains than fungal strains. In addition, cellulose modified with Ni (II) confers the most antibacterial protection efficiency.

New dimeric complexes with semicarbazone mannich-based ligand; formation, structural investigation and biological activity

The formation of a new semicarbazone Schiff-base ligand (E)-2-(2-(phenyl(2-phenylhydrazinyl)- methyl)cyclohexylidene)hydrazine-1-carboxamide (HL) and its complexes are reported. The new ligand was prepared from the condensation of the Mannich-base 2-(phenyl(2-phenylhydrazinyl)methyl)cyclohexan-1-one (M) with the semicarbazide. A series of metal complexes were prepared by the reaction of the ligand with the metal chlorides of Cr(III), Mn(II), Co(II), Ni(II), Cu(II)), Zn(II) and Cd(II). The structure of the ligand and its complexes were elucidated through analytical and spectroscopic techniques. The analyses indicated the ligand behaves as a monobasic tridentate species and the isolation of dimeric complexes with the general formula; [Cr(L)(Cl)2(H2O)]2, [M(L)Cl]2 (where M= Mn(II), Co(II), Ni(II), Cu(II)), Zn(II) and Cd(II)). These studies revealed a distorted octahedral geometry for Cr(III), a distorted square planar for Cu(II) and a tetrahedral arrangement for Mn(II), Co(II), Ni(II), Zn(II) and Cd(II). The biological activity of the prepared compounds against Escherichia coli, Pseudomonas auroginosa, Staphylococcus aureus and Bacillus subtilis compared with Cefotaxime (as a standard antibiotic) was also explored. Some of the examined compounds indicated a similar antibacterial activity to Cefotaxime. Furthermore, antifungal activity against Candida albicans and Rhizopus sporium was investigated, which showed that the ligand and its complexes exhibited good antifungal activity. Keywords: Schiff-base ligand; Structural characterization; Dimeric semicarbazone complexes; Biological activity.

Effects of sources and levels of dietary supplementary manganese on growing yak's in vitro rumen fermentation.

Manganese (Mn) is an essential trace element for livestock, but little is known about the optimal Mn source and level for yak. To improve yak's feeding standards, a 48-h in vitro study was designed to examine the effect of supplementary Mn sources including Mn sulfate (MnSO4), Mn chloride (MnCl2), and Mn methionine (Met-Mn) at five Mn levels, namely 35 mg/kg, 40 mg/kg, 50 mg/kg, 60 mg/kg, and 70 mg/kg dry matter (includes Mn in substrates), on yak's rumen fermentation. Results showed that Met-Mn groups showed higher acetate (p < 0.05), propionate, total volatile fatty acids (p < 0.05) levels, ammonia nitrogen concentration (p < 0.05), dry matter digestibility (DMD), and amylase activities (p < 0.05) compared to MnSO4 and MnCl2 groups. DMD (p < 0.05), amylase activities, and trypsin activities (p < 0.05) all increased firstly and then decreased with the increase of Mn level and reached high values at 40-50 mg/kg Mn levels. Cellulase activities showed high values (p < 0.05) at 50-70 mg/kg Mn levels. Microbial protein contents (p < 0.05) and lipase activities of Mn-Met groups were higher than those of MnSO4 and MnCl2 groups at 40-50 mg/kg Mn levels. Therefore, Mn-met was the best Mn source, and 40 to 50 mg/kg was the best Mn level for rumen fermentation of yaks.

Experimental and Computational Determination of a M-Cl Homolytic Bond Dissociation Free Energy: Mn(III)Cl-Mediated C-H Cleavage and Chlorination.

This study confirms the hypothesis that [MnCl3(OPPh3)2] (1) and acetonitrile-solvated MnCl3 (i.e., [MnCl3(MeCN)x]) can be used as synthons to prepare Mn(III) chloride complexes with facially coordinating ligands. This was achieved through the preparation and characterization of six new {MnIIICl} complexes using anionic ligands TpH (tris(pyrazolyl)borate) and TpMe (tris(3,5-dimethylpyrazolyl)borate). The MnIII-chloride dissociation and association equilibria (Keq) and MnIII/II reduction potentials were quantified in DCM. These two thermochemical parameters (Keq and E1/2), in addition to the known Cl-atom reduction potential in DCM, enabled the quantification of the Mn-Cl bond dissociation (homolysis) free energy of 21 and 23 ± 7 kcal/mol at room temperature for R = H and Me, respectively. These are in reasonable agreement with the bond dissociation free energy (BDFEM-Cl) of 34 ± 6 kcal/mol calculated using density functional theory. The BDFEM-Cl of 1 was also calculated (25 ± 6 kcal/mol). These energies were used in predictive C-H bond reactivity.

Nanographene-based electrochemical sensors for ultrasensitive determination of sorbic acid from food.

Ultrasensitive determination of sorbic acid in food is essential for the assessment of the food quality. Therefore, two sensors based on nanographene decorated with gold nanoparticle paste modified with metal porphyrins (Zn protoporphyrin IX, and 2,3,7,8,12,13,17,18 octaethyl, 21H, 23H-porphirine Mn(III) chloride) were proposed for the determination of sorbic acid in food (bakery products and mayonnaise). Square-wave voltammetry was used for the characterization and validation of the proposed sensors. Response characteristics showed that the limits of detection for both sensors were 0.33µmol L-1 while the limits of quantification were 1.00µmol L-1. Both sensors can be used for the determination of sorbic acid in the concentration range 1-1000µmol L-1, the linear concentration range making them appropriate for the assay of sorbic acid in food. The highest sensitivity (0.35 nA/µmol L-1) was recorded when the sensor based on 2,3,7,8,12,13,17,18 octaethyl, 21H, 23H-porphirine Mn(III) chloride was used, proving the higher electrocatalytic effect of this electrocatalyst versus the one of the Zn protoporphyrin IX. High recoveries (values higher than 95.00%) and low RSD (%) values (lower than 5.00%) were recorded for both sensors when used for the determination of sorbic acid in bread and mayonnaise, proving the high reliability of the proposed sensors and method.

Synthesis, Characterization and Anti-Microbial Studies of Metal(II) complexes with 4-methoxybenzaldehyde with p-anisidine

Some divalent transition metal complexes were synthesized by the reaction of the chlorides of Co(II), Fe(II), Mn(II) and Ni(II) with Schiff bases derived from the reaction of 4-methoxybenzaldehyde with p-anisidine in methanolic solution. The Schiff base [L] was obtained as grey colored crystals with a melting point of 153ºC. The metal(II) complexes [ML] obtained were all colored and decomposed at the range of 171-177 ºC. Molar conductivity measurements for the complexes carried out using DMSO were found to be at the range of 1.19-16.07Ω–1mol–1cm2. The small values could be an indication for non-electrolytic nature of the complexes. From the values of the magnetic moment (4.40–5.85 B.M), all the complexes were found to be paramagnetic and soluble in most common solvents. The infra-red spectral analysis indicates complexation has taken place due to metal-nitrogen bands at the range, 632–645cm-1 for [ML]. The metal-ligands ratio in all the complexes was 1:2 as obtained from the Job’s method of continuous variation. The percentage composition of the metals and their corresponding ligands were found gravimetrically and the results obtained were in good agreement with the calculated values. The ligands and their corresponding complexes were screened in-vitro for their antimicrobial activity against Escherichia coli, Aspergillus fumigatus, Salmonella typhi, Staphylococcus aureus, Aspergillus flavus and Mucor species using the paper-discs diffusion method. Inhibition properties of the compounds showed that the complexes have higher antimicrobial activities than the ligands which could be attributed to chelation.

Bright Mn-doped carbon dots for the determination of permanganate and L-ascorbic acid by a fluorescence on-off-on strategy.

Aone-pot hydrothermal synthesis of manganese-doped carbon dots (Mn-CDs) is reportedfor fluorescent "on-off-on" determination of Mn(VII) and L-ascorbic acid (L-AA) in aqueous solution and living cells. Mn-CDs were prepared by using sulfanilic acid, tetrakis(hydroxymethyl)phosphonium chloride, and Mn(II) chloride as precursors. Mn-CDs were characterized by several spectroscopic methods and microscopic techniques. Mn-CDs show distinctly long fluorescence lifetime (12.39 ± 0.07ns) and high absolute fluorescence quantum yield (around 37%) with excitation and emission wavelengths of 362 and 500nm, respectively. Mn-CDs exhibit no significant cytotoxicity to human cervical carcinoma HeLa cells and human embryonic kidney HEK-293T cells at 200μgmL-1 level after 48h incubation. The fluorescence of Mn-CDs at 500nm (excited at 362nm) is quenched efficiently by Mn(VII) and can be further recovered after the addition of L-AA, resulting ina fluorescent "on-off-on" assay for the determination of Mn(VII) and L-AA. Under optimal experimental conditions, the linear response covers the 3 to 150μM Mn(VII) concentration range and the 3 to 140μM L-AA concentration range. This method offers relatively low detection limits of 0.66μM for Mn(VII) and 0.90μM for L-AA. This strategy was applied tovisual determination of Mn(VII) and L-AA in living HeLa cells with satisfying results. Graphical abstract Schematic presentation of bright Mn-CD-based fluorescence "on-off-on" assay for both Mn(VII) and L-AA. This fluorescent assay possessed low detection limit of 0.66μM for Mn(VII) and 0.90μM for L-AA. This strategy was applied for visual determination of Mn(VII) and L-AA in living HeLa cells with satisfying results.

Synthesis and Spectral Properties of Unsymmetrically Substituted Mn(II) and Mn(III) Octaethylporphyrins

5-Mononitro-2,3,7,8,12,13,17,18-octaethylporphyrin, 5,10,15-trinitro-2,3,7,8,12,13,17,18-octaethylporphyrin, and their Cd(II) complexes were synthesized. The coordination reactions of 2,3,7,8,12,13,17,18-octaethylporphyrin and its mono- and trinitro-substituted derivatives and the metal-exchange reactions of the synthesized Cd(II) octaethylporphyrin complexes with Mn(II) chloride in DMF were investigated by spectrophotometry. The corresponding Mn(II) and Mn(III) porphyrins were obtained and identified. The kinetic parameters of the studied reactions were determined.

SYNTHESIS AND RESEARCH OF NEW HETEROMETAL COMPLEXES Cо(II), Ni(II), Cu(II) AND Mn(II) BASED ON V(V) AND 5-(4-PYRIDYL)-1,3,4-OXADIAZOLE-2(3H)-THIONE LUBRICANTS

The oxadiazole derivatives complex compounds with metals are biologically active substances. The aim of the study was to study the interaction of the chlorides of Co (II), Ni (II), Cu (II) and Mn (II) with 5-(4-pyridyl)-1,3,4-oxadiazole-2(3H)–thione, ammonium vanadate. Competitive coordination of donor centers, electronic and geometric structures of the ligand molecule were studied on the basis of the quantum-chemical software package Gaussian09 LanL2DZ. It was shown that 5-(4-pyridyl)-1,3,4-oxadiazole-2(3H)-thione ligand is partially coordinated through a localized nitrogen or sulfur atoms at formation of the complex. А procedure was developed for the synthesis of new mixed-metal complexes. The composition and structure of the synthesized compounds were studied using elemental analysis, termogravimetric and X-ray phase analysis and IR spectroscopy.

Manganese-enhanced MRI: Comparison of agents in the rat pancreas

Mangafodipir was approved for use as an MRI contrast agent in the late 1990s for liver and pancreas imaging but it was removed from the European market for commercial reasons in 2012. Previously, preliminary work in mice and in diabetic patients showed that Mn2+ ions could be used as a contrast agent to monitor the function of insulin-producing β-cells by acting as a calcium analogue. Clinical translation of this work was hampered by a lack of available Mn contrast agents, but both mangafodipir and Mn gluconate are currently being used in clinical trials.As a first step towards using Mn in diabetic patients to monitor treatment or disease progression, we imaged the pancreas of healthy rats using mangafodipir, Mn gluconate and Mn chloride (as a control). The hypothesis was that Mn gluconate produces pancreatic enhancement similar to that seen previously with mangafodipir and Mn chloride, with greater enhancement following glucose challenge vs saline challenge. 18 Wistar rats were imaged at 7 T and normalised plateau pancreatic enhancement over baseline was compared for saline vs glucose challenge, calculated from a sigmoid fit to the enhancement curve. For saline vs glucose challenge, mean increases in plateau height ± sd were: 22 ± 18% for Mn chloride, 31 ± 29% for mangafodipir and 41 ± 17% for Mn gluconate. A paired t-test indicated that enhancement was greater for glucose vs saline (p=0.01) and that there was no significant difference in the percentage enhancement between any of the compounds (p>0.2). In conclusion, all three contrast agents produced similar enhancement, with greater plateau height under glucose challenge vs saline challenge. Mangafodipir and Mn gluconate show potential for translation into a clinical study investigating beta cell imaging of the pancreas in type 1 diabetes mellitus and type 2 diabetes.

Superoxide-assisted electrochemical deposition of Mn-aminophenyl porphyrins: Process characteristics and properties of the films

Electrochemical behavior and superoxide-assisted electrochemical deposition of Mn(III)chloride 5,10,15,20-tetrakis(meta-aminophenyl)porphine (MnClT(m-NH2Ph)P) and Mn(III)chloride 5,10,15,20-tetrakis(para-aminophenyl)porphine (MnClT(p-NH2Ph)P) in DMSO solutions on electrodes of various types have been investigated. It is shown that a surface film is formed in the oxygen electroreduction potentials region. The influence of the amino group position in the phenyl substituent on the deposition kinetics of the film and its morphology is demonstrated. It has been shown that the main motif of the porphyrin-porphyrin bond is phenazine type bridges, if the aminophenyl-porphyrin film is deposited by the developed method. A mechanism has been proposed for forming these bridges for the case of superoxide-assisted electrochemical deposition of poly-Mn-aminophenyl porphyrins films. It has been established that polyporphyrin films obtained from solutions of MnClT(m-NH2Ph)P and MnClT(p-NH2Ph)P in DMSO are electrocatalytically active in the reaction of oxygen electroreduction in an alkaline medium.

The effect of chemical modification of the macrocycle on the complex formation between porphyrins and metal salts in organic solvents

The complex formation of β-octaethylporphyrin, β-octaethyl-meso-monophenylporphyrin, β-octaethyl-meso-tetraphenylporphyrin, meso-diphenylporphyrin, meso-triphenylporphyrin, and meso-tetraphenylporphyrin with Zn(II), Cu(II), Co(II), and Mn(II) acetates and chlorides in dimethylformamide, dimethylsulfoxide, pyridine, acetic acid, and a chloroform–methanol 1 : 1 mixture has been studied by means of spectrophotometry. The observed regulations are in line with the concept of chemical reactivity of the N–H bonds in porphyrins of different complexity.

Corrosion Behavior and Mechanism of Fe-14Cr-Mn Alloy in Molten Eutectic NaCl-MgCl 2 at Different Temperatures

Operating temperature waves around the melting temperature of molten eutectic NaCl-MgCl2 which is thermal storage media at medium-high temperature. But the corrosion behavior of the molten salt on metal at different temperatures is not clear. In the present paper, the corrosion behavior and mechanism of the molten salt on Fe-14Cr-Mn alloy were studied by an immersion salt corrosion method at 718, 768 and 818 K. Results show that corrosion rate increases lightly with the increase of corrosion temperature. Corrosion kinetics characteristics obey the linear law (slope k≈−4.806×10−4). At the early stage of corrosion, there are lots of vacuoles, while a large number of pit holes are formed after corroding for 80 h. Corrosion products are mainly Fe, Fe-Cr and MgO. Corrosion mechanism is as follows: absorbed oxygen on molten salt surface and oxygen atom that is introduced in the form of moisture-absorbed MgCl2 are as depolarizing agents. Chlorides of Cr and Mn are got when oxide of Cr and Mn react with Cl−. The chlorides of Cr and Mn with water, e.g. CrCl3·6(H2O) and MnCl2·n(H2O) that have low melting point would escape from corrosion system. In addition, there is a salt crust that is composed of MgCl2·(H2O)6, NaCl and MgO on molten salt upper surface, while NaCl coexists with NaMgCl3 inside mixture salt.

Solute transport within grape berries inferred from the paramagnetic properties of manganese.

Tracer compounds used for studying solute transport should ideally have identical functions and transport properties to the molecules they are designed to mimic. Unfortunately, the xylem-mobile tracer compounds currently used to infer solute transport mechanisms in botanical specimens such as the fruit of the grapevine, Vitis vinifera L., are typically xenobiotic and have difficulty exiting the xylem during berry ripening. Here it is demonstrated that the transport of paramagnetic Mn ions can be indirectly observed within the grape berry, using relaxation magnetic resonance imaging (MRI). Mn ions from a 10mM Mn chloride solution were taken up into the grape berry via the pedicel and moved through the peripheral vasculature before exiting into surrounding pericarp tissue. Mn did not exit evenly across the berry, implying that the berry xylem influences which sites Mn exits the vasculature 'downstream' of the berry pedicel. It was also found that when the cellular membranes of pericarp tissues were disrupted, the distribution of Mn through the pericarp tissue became noticeably more homogenous. This indicates that the cellular membranes of extra-vascular cells affect the spatial distribution of Mn across the berry extra-vascular pericarp tissue upon exiting the grape berry vasculature.

Evaluation of hepatorenal impairments in Wistar rats coexposed to low-dose lead, cadmium and manganese: insights into oxidative stress mechanism

The study aims to evaluate effects of chronic low-dose coexposure to lead (Pb), cadmium (Cd) and manganese (Mn) on hepatorenal toxicity and oxidative stress. Young male Wistar rats were treated with Pb acetate (1.4 mg/kg BW), Cd chloride (0.01 mg/kg BW), Mn chloride (0.14 mg/kg BW) and their combination (Pb + Cd + Mn) by oral gavage, for 15 weeks. Liver enzymes, albumin (Alb), globulin (Glb), total protein, creatinine, urea and electrolyte concentrations were measured in the serum. Hepatic and renal malondialdehyde (MDA), glutathione peroxidase-1 (GPx1) and metallothionein-1 (MT1) concentrations were measured by enzyme immunoassay technique. Chronic exposure to the metals significantly (p < .05) increased serum Glb concentration and decreased Alb/Glb ratio, compared to the controls. Serum creatinine concentration significantly (p < .05) decreased in the Pb, Cd and Pb + Cd + Mn groups, but elevated in the Mn group. Hepatic MDAs rose significantly (p < .05) in the Pb group, while hepatic GPx1 activities increased significantly (p < .05) in the Cd, Mn and Pb + Cd + Mn groups. Hepatic and renal MT1 concentration decreased (p < .05) in the Mn group only. Biochemical alterations were confirmed by light microscopy of the liver and kidneys, which showed degenerative changes. It is concluded that prolonged coexposure to environmentally relevant levels of Pb, Cd and Mn impairs liver and kidney functions via the induction of oxidative stress, and it underlines the importance of studying toxicants in combination.

Solvent dependent nuclearity of manganese complexes with a polydentate hydrazone-based ligand and thiocyanate anions

The reaction of Mn(II) chloride with the 2-benzoylpyridyl-(2-picolyl)-hydrazone ligand (HL) and thiocyanate anions in different solvent systems affords mono- [Mn(HL)2(SCN)2] (1), di- [Mn2(HL)2(SCN)4] (2) and a tetra-nuclear complex [Mn4(L)4(SCN)4]·2(CH3CN) (3) with concomitant different coordination modes of the ligands. Remarkably, the nuclearity of the complexes only depends on the solvent used, ethanol for 1, n-propanol for 2 and acetonitrile for 3. The complexes have been characterized by elemental analysis, IR spectroscopy technique and the molecular structures determined by single crystal X-ray analysis. In 1 and 2 the ligands are present in its neutral form, while they are deprotonated in 3, but more significantly in all structures a different denticity of ligands was detected: in complex 1 one molecule is tridentate coordinated though the N,N,O donor set, the other bidentate through N,O; in 2 the ligands are N,N,O-tridentate; finally in 3 each ligand, acting as N,N,O,N-tetradentate species, bridges two metals to form a tetranuclear assembly. The crystal structures have been described using the Hirshfeld surface analysis. Finally, we have studied the ability of the thiocyanato ligand to participate in H-bonding and CH/π interactions by means of DFT calculations (B3LYP/6-31+G∗∗).