Details

Autor(en) / Beteiligte

• Zhang, Min
• Feng, Meng‐Yao
• Yan, Jia‐Jun
• Li, Hai‐Yan
• Young, David James
• Li, Hong‐Xi
• Ren, Zhi‐Gang

Titel

New Silver(I)‐P4 Coordination Polymers Strongly Adsorb Congo Red to Yield Composites with Enhanced Photocurrent Responses

Ist Teil von

• European journal of inorganic chemistry, 2021-06, Vol.2021 (23), p.2262-2265

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Reaction of tetraphosphine (P4) ligand dppbpda with Ag(I) oxylates yielded new coordination polymers (CPs) of formula [(dppbpda)Ag4(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‐η2,η2‐ connected Ag4(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. Reactions of a tetraphosphine (P4) ligand dppbpda with Ag(I) oxylates resulted in three 1D CPs [(dppbpda)Ag4(Ox)4]n, which exhibited excellent two‐step Congo Red (CR) sorption capacities up to 1438, 1417 and 1656 mg/g. Compared to pure CPs, the composites CP@CR showed enhanced two‐peak photocurrent responses, with optimized current densities being 227, 163 and 386 μA cm−2, respectively.