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Cyanide Complexes Based on {Mo6I8}4+ and {W6I8}4+ Cluster Cores

Authors :
Aleksei S. Pronin
Spartak S. Yarovoy
Yakov M. Gayfulin
Aleksey A. Ryadun
Konstantin A. Brylev
Denis G. Samsonenko
Ilia V. Eltsov
Yuri V. Mironov
Source :
Molecules, Vol 25, Iss 24, p 5796 (2020)
Publication Year :
2020
Publisher :
MDPI AG, 2020.

Abstract

Compounds based on new cyanide cluster anions [{Mo6I8}(CN)6]2–, trans-[{Mo6I8}(CN)4(MeO)2]2– and trans-[{W6I8}(CN)2(MeO)4]2− were synthesized using mechanochemical or solvothermal synthesis. The crystal and electronic structures as well as spectroscopic properties of the anions were investigated. It was found that the new compounds exhibit red luminescence upon excitation by UV light in the solid state and solutions, as other cluster complexes based on {Mo6I8}4+ and {W6I8}4+ cores do. The compounds can be recrystallized from aqueous methanol solutions; besides this, it was shown using NMR and UV-Vis spectroscopy that anions did not undergo hydrolysis in the solutions for a long time. These facts indicate that hydrolytic stabilization of {Mo6I8} and {W6I8} cluster cores can be achieved by coordination of cyanide ligands.

Details

Language :
English
ISSN :
14203049
Volume :
25
Issue :
24
Database :
Directory of Open Access Journals
Journal :
Molecules
Publication Type :
Academic Journal
Accession number :
edsdoj.4a2b57985b124c1293e76d3d05eb09e0
Document Type :
article
Full Text :
https://doi.org/10.3390/molecules25245796