Rare Silver-Histidine Cluster Complex and Its Single-Crystal-to-Single-Crystal Phase-Transition Behavior

N/ACitations
Citations of this article
9Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

Silver complexes with proteinogenic amino acid ligands are of interest for biomedical and antimicrobial applications. In this work, we obtained {[Ag7(l-his)4](NO3)3·3H2O}0.2{[Ag8(l-his)4(H2O)2](NO3)4·3H2O}0.8(1) and {[Ag7(d-his)4](NO3)3·3H2O}0.2{[Ag8(d-his)4(H2O)2](NO3)4·3H2O}0.8(2), which represent the first example of any Ag-exclusive complex featuring a cluster-type core motif and with only proteinogenic amino acid ligands. Upon immersion into acetonitrile, an interesting single-crystal-to-single-crystal transformation occurred to produce a new cluster complex of the formula [Ag8(l-his)4(NO3)(H2O)](NO3)3(3). Using a racemic mixture of histidine, the reaction under otherwise identical conditions led to the production of the second example of a three-dimensional (3D) network structured Ag-exclusive complex with only a proteinogenic amino acid ligand. Compared with other Ag-histidine complexes in the literature, the significance of reaction conditions, particularly the Ag/histidine ratio and pH of the reaction mixture, is revealed. Temperature-dependent emission of 1 and 2 at 440 nm characteristic of silver-philophilic interactions was also observed.

Cite

CITATION STYLE

APA

Liu, Q., Wu, Y., Feng, M., Chen, W., Zheng, Z., & Feng, M. (2022). Rare Silver-Histidine Cluster Complex and Its Single-Crystal-to-Single-Crystal Phase-Transition Behavior. ACS Omega, 7(9), 8141–8149. https://doi.org/10.1021/acsomega.2c00094

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free