Luminescent Coordination Polymers Constructed from a Flexible, Tetradentate Diisopyrazole Ligand and Copper(I) Halides

Autor:	Yuichi Kitagawa, Parantap Sarkar, Yasuchika Hasegawa, Yasuhide Inokuma, Yumehiro Manabe, Chika Kasai, Tomoki Yoneda, Makoto Tsurui
Rok vydání:	2020
Předmět:	Trigonal planar molecular geometry Denticity 010405 organic chemistry Coordination polymer Ligand Organic Chemistry Halide chemistry.chemical_element General Chemistry 010402 general chemistry 01 natural sciences Biochemistry Copper 0104 chemical sciences coordination polymer chemistry.chemical_compound chemistry Bromide Polymer chemistry luminescence copper halide polyimine Coordination geometry
Zdroj:	Chemistry – An Asian Journal. 15:601-605
ISSN:	1861-471X 1861-4728
DOI:	10.1002/asia.201901682
Popis:	One- and two-dimensional coordination polymers composed of a structurally flexible, tetradentate diisopyrazole ligand and copper(I) halides were synthesized as crystalline solids. Complexation with copper(I) chloride or bromide resulted in the formation of infinite coordination chains through connecting each diisopyrazole ligand with two copper(I) ions in a trigonal planar coordination geometry. Contrarily, the combination of a diisopyrazole ligand and copper(I) iodide gave a two-dimensional coordination network comprising Cu4 I4 units with stair-step type geometry and diisopyrazoles that acted as both tetradentate and bidentate bridging ligands. All the coordination polymers exhibited visible photo-emission upon UV irradiation, and the Cu4 I4 complex showed thermochromic behavior.
Databáze:	OpenAIRE
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