Synthesis and Photocatalytic Properties of Four Coordination Compounds Constructed from Two Benzimidazole-Based Asymmetric Polyazocyclic Ligands

Abstract

In this paper, two benzimidazole derivative ligands were obtained using o-phenylenediamine and n-pyridine formaldehyde (n = 3, 4) by amine–aldol condensation reactions, which were reacted with selected inorganic metal salts by ambient temperature volatilization method to give compounds 1–4: {[(L1)6]·[Cu8I8]} (1), {[L1]·[CuBr]·H2O} (2), {[L2]·[CuBr]}n (3), and {[(L2)4]·[Cu4I4]} (4). They were characterized by IR, UV-Vis absorption spectroscopy, thermogravimetric analysis, and single crystal X-ray analysis. Simultaneously, compounds 1–4 were found to possess photocatalytic degradation of ciprofloxacin (CIP) by preliminary experimental investigations.

Constructing a P2W18O626–-Containing Hybrid Photocatalyst via Noncovalent Interactions for Enhanced H2 Production

“…It is well-known that ligand plays a key role in the construction of functional coordination compounds, which demonstrates interesting properties in fluorescence recognition, 34 sensing, 35 chemical catalysis, and photocatalysis. 36,37 Compounds with pyridinyl benzimidazole ligands have been explored in various reactions. 38,39 O was conducted following a previously reported procedure.…”

“…It is well-known that ligand plays a key role in the construction of functional coordination compounds, which demonstrates interesting properties in fluorescence recognition, sensing, chemical catalysis, and photocatalysis. , Compounds with pyridinyl benzimidazole ligands have been explored in various reactions. , In this work, to obtain an efficient hydrogen evolution photocatalyst, we cocrystallize the Dawson-type POM P 2 W 18 O 62 6– with 2-(pyridin-4-yl)-1 H -benzo­[ d ]­imidazole pyridyl benzimidazole to form a hybrid compound (P 2 W 18 O 62 ) 3 (C 12 N 3 H 10 ) 6 (C 12 N 3 H 11 ) 6 ·9.5H 2 O (P-PW). This hybrid compound is stabilized via noncovalent interactions, leading to a water-insoluble POM-based photocatalyst.…”

Photocatalytic Degradation of Ciprofloxacin with Supramolecular Materials Consisting of Nitrogenous Organic Cations and Metal Salts

“…In the photocatalytic degradation reaction, the photocatalyst, that is, the supramolecular compound in this work, plays the role of the catalyst. According to the comparison of PXRD patterns of the compounds before and after degradation in the literature [45], the structure of the compounds did not change before and after degradation. The products of photocatalytic degradation of CIP with supramolecular compounds are: carbon dioxide, water, etc.…”

“…The products of photocatalytic degradation of CIP with supramolecular compounds are: carbon dioxide, water, etc. The specific degradation process was described in the literature [45].…”