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.
Original language | English (US) |
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Pages (from-to) | 8141-8149 |
Number of pages | 9 |
Journal | ACS Omega |
Volume | 7 |
Issue number | 9 |
DOIs | |
State | Published - Mar 8 2022 |
Externally published | Yes |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
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CCDC 2128456: Experimental Crystal Structure Determination
Liu, Q. (Contributor), Wu, Y. (Contributor), Feng, M. (Contributor), Chen, W. (Contributor) & Zheng, Z. (Contributor), Cambridge Crystallographic Data Centre, 2022
DOI: 10.5517/ccdc.csd.cc29ftwg, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc29ftwg&sid=DataCite
Dataset
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CCDC 2128164: Experimental Crystal Structure Determination
Liu, Q. (Contributor), Wu, Y. (Contributor), Feng, M. (Contributor), Chen, W. (Contributor) & Zheng, Z. (Contributor), Cambridge Crystallographic Data Centre, 2022
DOI: 10.5517/ccdc.csd.cc29fjgr, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc29fjgr&sid=DataCite
Dataset
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CCDC 2131102: Experimental Crystal Structure Determination
Liu, Q. (Contributor), Wu, Y. (Contributor), Feng, M. (Contributor), Chen, W. (Contributor) & Zheng, Z. (Contributor), Cambridge Crystallographic Data Centre, 2022
DOI: 10.5517/ccdc.csd.cc29jl7p, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc29jl7p&sid=DataCite
Dataset