Vinylimidazole coordination modes to Pt and Au metal centers

Abstract

<p>Abstract The coordination modes of 1-vinylimidazole to platinum and gold were studied. The complexes [PtCl3(Hvinylimidazole)].H2O (1), [Au(vinylimidazole)2]+[AuBr2]- (2) [Hvinylimidazole]+[AuCl4]- (3), [Hvinylimidazole]+[AuBr4]- (4), were prepared and structurally characterized. Compound 1 is...</p>

Rapid and Selective Gold Stripping from Electronic Waste with Yolk–Shell-Structured Ion-Imprinted Magnetic Mesoporous Nanorobots for Efficient Water Decontamination

“…This is mainly attributed to the specific binding sites and memory cavities created during the imprinting process, which can be well matched to the charge, chelation, and coordination geometry and size of Au(III), and the imidazole group that specifically binds Au(III) with high affinity. 61 To demonstrate the feasibility of the prepared adsorbent in practical applications, MMNR-IIP-YS was used to capture Au(III) from actual circuit board leachates. After aqua regia leaching, the major metal elements and their concentrations in the resulting solutions are shown in Table S6.…”

“…In addition, MMNR-IIP-YS showed higher K values and relative selectivity coefficients (α) between 8.9 and 127.6, further indicating that MMNR-IIP-YS has a high selective identification ability for Au­(III). This is mainly attributed to the specific binding sites and memory cavities created during the imprinting process, which can be well matched to the charge, chelation, and coordination geometry and size of Au­(III), and the imidazole group that specifically binds Au­(III) with high affinity . To demonstrate the feasibility of the prepared adsorbent in practical applications, MMNR-IIP-YS was used to capture Au­(III) from actual circuit board leachates.…”

Design of new zwitterionic microparticles with intrinsic antibacterial activity

“…In this context, the nitrogen heterocyclic compounds have gained special attention during the last years due to their numerous applications as drugs with different pharmaceutical activities (anticancer, anti‐HIV, antifungal, anti‐inflammatory, anthelmintic, antitubercular, antiviral, antipyretic and antimicrobial activities), corrosion inhibitors, dyes, cosmetics, and agrochemicals 5–8 . Among the nitrogen heterocyclic compounds family, the N‐vinylimidazole represents an interesting vinyl monomer that can participate in radical polymerization reactions leading to polymeric materials with biocompatibility, biodegradability, antimicrobial properties, and protein adsorption ability 9–11 . Also, its tertiary nitrogen atom can participate in substitution or addition reactions with different betainizing agents, resulting in the preparation of polymers with betaine structure 12,13 .…”

“…[5][6][7][8] Among the nitrogen heterocyclic compounds family, the N-vinylimidazole represents an interesting vinyl monomer that can participate in radical polymerization reactions leading to polymeric materials with biocompatibility, biodegradability, antimicrobial properties, and protein adsorption ability. [9][10][11] Also, its tertiary nitrogen atom can participate in substitution or addition reactions with different betainizing agents, resulting in the preparation of polymers with betaine structure. 12,13 Polybetaines have been distinguished in their biocompatibility, hydrophilicity, antibacterial and antifouling properties.…”