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New Silver(I)‐P4 Coordination Polymers Strongly Adsorb Congo Red to Yield Composites with Enhanced Photocurrent Responses
Author(s) -
Zhang Min,
Feng MengYao,
Yan JiaJun,
Li HaiYan,
Young David James,
Li HongXi,
Ren ZhiGang
Publication year - 2021
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202100228
Subject(s) - chemistry , photocurrent , adsorption , congo red , yield (engineering) , polymer , band gap , crystallography , polymer chemistry , organic chemistry , composite material , materials science , optoelectronics
Reaction of tetraphosphine (P4) ligand dppbpda with Ag(I) oxylates yielded new coordination polymers (CPs) of formula [(dppbpda)Ag 4 (Ox) 4 ] n (Ox=Bz ( 1 ), Sal ( 2 ), LA ( 3 ), Bz=benzoate, Sal=salicylate, LA=lactate). The solid‐state structures of 1 – 3 consist of one dimensional (1D) chains constructed from tetranuclear μ ‐ η 2 , η 2 ‐ connected Ag 4 (Ox) 4 cluster cores and dppbpda bridging ligands. Compounds 1 – 3 absorbed Congo Red in two distinct steps, with maximum uptake quantities of 1438 ( 1 ), 1417 ( 2 ) and 1656 ( 3 ) mg/g, inversely correlating with the size of the anions in the CPs. These CPs had band gaps in the semiconducting region (Eg) 3.05–3.15 eV and all three showed enhanced two‐peak photocurrent responses during the stepwise adsorption of CR, with maximum photocurrent densities of 227 ( 1 ), 163 ( 2 ) and 386 ( 3 ) μA cm −2 for composites with optimized dye coverage.