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Two Bulky Conjugated 4′‐(4‐Hydroxyphenyl)‐4,2′:6′,4′′‐terpyridine‐based Layered Complexes: Synthesis, Structure, and Photocatalytic Hydrogen Evolution Activity
Author(s) -
Zhu Shuang,
Dai XueJiao,
Wang XiuGuang,
Cao YingYu,
Zhao XiaoJun,
Yang EnCui
Publication year - 2019
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201800455
Subject(s) - terpyridine , conjugated system , ligand (biochemistry) , photocatalysis , chemistry , crystallography , hydrogen bond , crystal structure , hydrogen production , hydrogen , stereochemistry , photochemistry , materials science , catalysis , polymer chemistry , metal , polymer , organic chemistry , molecule , receptor , biochemistry
Two new layered complexes with the formulas of {[Cu(H 2 O)(HL) 2 Cl](NO 3 )} n ( 1 ) and {[Cu(H 2 O) 2 (HL) 2 ](NO 3 ) 2 } n ( 2 ) were solvothermally synthesized by the reactions of the bulky conjugated 4′‐(4‐hydroxyphenyl)‐4,2′:6′,4′′‐terpyridine ligand (HL) with different Cu II salts, which were further used as photocatalysts to achieve hydrogen production from water splitting. Single‐crystal structural analyses reveal that both complexes feature coplanar (4 4) layers with different connection manners between the HL extended Z‐shaped chains. More interestingly, 1 possessing more negative conduction band potential and higher structural stability exhibits a large hydrogen production rate of 2.43 mmol · g –1 · h –1 , which is four times higher than that of 2 . Thus, the Cu II ‐based coordination polymers modified by the bulky conjugated organic ligand can become potentially promising non‐Pt photocatalysts for hydrogen production from water splitting.