Cuprous Coordination Polymer Research Articles

A diamond-like cuprous coordination polymer based on the [Cu8I6]2+ cluster with multistimuli-responsive luminescence and iodine adsorption behavior

A diamond-like cuprous coordination polymer based on the [Cu8I6]2+ cluster has been successfully synthesized. This complex exhibits thermochromic and mechanochromic luminescence properties as well as good performance for the sorption and release of I2.

Electrochemical CO2 reduction improved by tuning the Cu-Cu distance in halogen-bridged dinuclear cuprous coordination polymers

Cu dinuclear coordination polymers in which two Cu atoms are bridged by a halogen reduce CO2 to C2 products. The distance between the two Cu atoms is expected to affect the C–C coupling reaction efficiency, herein we propose that a shorter Cu-Cu distance and desorption of bridging halogen elements from Cu atoms facilitate C2 formation from experimental results and DFT calculations. In many previous studies, the influence of factors other than the organic ligands has been overlooked in the structural design of metal complexes. The C2 product selectivity is greatly influenced by surrounding elements as well as organic ligands.

Self-assembled Cuprous Coordination Polymer as a Catalyst for CO2 Electrochemical Reduction into C2 Products

C2 production with conventional metal complex catalysts has been a significant challenge. Here, we present the electrochemical reduction of CO2 into C2 products such as ethylene and ethanol with hi...

Inter-chain double-site synergistic photocatalytic hydrogen evolution in robust cuprous coordination polymers.

Here, we evaluate photocatalytic H2 generation of three stable Cu-based coordination polymers (CPs), where each two-coordinated Cu(i) is stabilized in interchain -[Cu-imidazole(R)-Cu]- units. Importantly, a record-high H2 evolution rate of 57.64 mmol g-1 h-1 is identified for Cu-MIM. Theoretical calculations reveal that the excellent catalytic performances are due to the delicate synergies of the inter-chain double-site Cu atoms.

A new cuprous coordinating polymer constructed by bridging 2,2-(1,4-butanediyl)bis-1,3-benzoxazole ligand: synthesis, structure, and properties

A new cuprous coordination polymer (CP) with 2,2-(1,4-butanediyl)bis-1,3-benzoxazole (BBO) and triphenylphosphine sulfide (SPPh3) ligands, {[Cu(BBO)(SPPh3)]ClO4}n (1), has been characterized by elemental analysis, UV-Vis, infrared spectra and single-crystal X-ray diffraction. The structural analysis revealed that 1 exhibits a one-dimensional CP and is in a three-coordinate slightly distorted trigonal planar environment in which the total angle around the copper(I) atom is 359.2°. Solid luminescence properties investigation showed that 1 had one emission peak at 428 nm (λex = 355 nm, blue luminescence), which may be attributed to MLCT [(d10(Cu)→π*]. The cyclic voltammogram of 1 represents irreversible Cu2+/Cu+ pairs. The antioxidant activity experiment shows that 1 has the potential ability to scavenge hydroxyl and superoxide radical in vitro studies.

Three cuprous coordination polymers based on bisbenzoxazole: Syntheses, structures, luminescence and electrochemical properties

Three cuprous coordination polymers, namely: {[Cu(BBO)3]·PF6}n (1), {[Cu(BBO)2(CH3CN)2]·BF4}n (2) and {[Cu(BBO)2(SPPh3)]·BF4}n (3), bearing a bisbenzoxazole ligand, 2,2′-(1,4-butanediyl)bis-1,3-benzoxazole (BBO), have been synthesized, and structurally characterized by elemental analyses, IR, UV–Vis and single-crystal X-ray diffraction. The structural analysis revealed that the structures of coordination polymers 1 and 3 are both three-coordinated and show distorted trigonal planar geometry, but 2 is four-coordinated and a slightly distorted tetrahedron environment. In coordination polymer 1, adjacent copper(I) ions were bridged by three independent BBO to form a two-dimensional planar layer framework in which PF6− anion is filled in the hole. Two BBO link Cu(I) ions into a one-dimensional zigzag chain in coordination polymer 2, while acetonitrile as an ancillary ligand distributed on both sides of the one-dimensional chain. Coordination polymer 3 exhibits a single-stranded helix chain structure by two BBO bridging adjacent copper(I) ions. Luminescence properties investigation show that 1 have two emission peaks, which attributed to π–π* and n–π* transitions. However 2 and 3 only had one emission peak, which may be attributed to [MLCT(d10(Cu) → π*]. This may be due to the synergy of the auxiliary ligands in coordination polymers 2 and 3. The cyclic voltammogram of 1–3 represent quasi-reversible Cu2+/Cu+ pairs.

An unusual cuprous iodide polymer incorporating I-, I2 and I3- structural units.

A novel cuprous iodide polymer [Cu2(μ4-L)(μ2-I-)(I2)(I3-)]n·nI2 (1, L = 1-tetrazole-4-imidazole-benzene) has been hydrothermally synthesized. 1 contains a 1-D chain [Cu2(μ4-L)(μ2-I-)(I2)(I3-)]n and free I2 molecules, which are interconnected by weak II interactions to form an unprecedented 3-D cuprous polyiodide network containing rare 1-D [(I-)·2I2·(I3)-]n polyiodide ribbons. 1 shows luminescence and photoelectronic properties, and its theoretical band structure was also studied.

A CuI‐Phosphonotriazolate Coordination Polymer Based on [CuI4Cl] Cluster for Fluorescent Sensing of O2

AbstractA novel cuprous coordination polymer built of [Cu4ICl] cluster and 4‐(1,2,4‐triazol‐4‐yl)phenylphosphonate acid (H2ptz) ligand has been hydrothermally synthesized, in which the CuI is in‐situ generated by the reduction reaction from CuII precursors. This compound shows a green fluorescent emission with a maximum peak at 510 nm under N2 flow in solid state, which can be turned off by 21 % O2 flow in minutes. Interestingly, it can be turned on again by switching to N2 flow. A possible mechanism has also been proposed.