The Synthesis, Characterization, and Structure of (ThioH) 2 [OsX 6 ] (X = Cl, Br) Full article
Journal |
Polyhedron
ISSN: 0277-5387 |
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Output data | Year: 2017, Volume: 134, Pages: 114-119 Pages count : 6 DOI: 10.1016/j.poly.2017.05.057 | ||||
Tags | Osmium halido complexes; Thiourea; Protonation; IR and UV–Vis spectroscopy; Synchrotron X-ray diffraction | ||||
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Abstract:
Novel osmium complexes (ThioH)2[OsCl6] (1) and (ThioH)2[OsBr6] (2) have been synthesized via the interaction of H2[OsX6] (X = Cl, Br) with thiourea (Thio) in concentrated HX and characterized by chemical analysis, potentiometry, IR- and UV–Vis spectroscopy, X-ray powder and single-crystal diffraction. UV–Vis spectroscopy of 1 and 2 in solutions supports the preservation of [OsX6]2− ions that however demonstrate considerable solvatochromism. The longer-wavelength bands experience a hypsochromic shift with respect to the crystalline state. Intense bands of Os-halogen vibrations in ATR IR spectra are red-shifted with respect to those for K2[OsX6]. The complexes are isostructural and crystallized in the triclinic space group , Z = 1. Unit cell parameters are for 1: a = 7.1800(14) Å, b = 7.2700(15) Å, c = 7.7800(16) Å, α = 78.89(3)°, β = 87.83(3)°, γ = 65.11(3)°; for 2: a = 7.3169(15) Å, b = 7.5504(15) Å, c = 8.2065(16) Å, α = 80.00(3)°, β = 88.55(3)°, γ = 63.37(3)°. The cations (NH2)2CSH+ and anions [OsX6]2− are assembled into two-tier layers by N–H…X and S–H…X hydrogen-bonds and S…X non-valent contacts.
Cite:
Rudnitskaya O.V.
, Kultyshkina E.K.
, Dobrokhotova E.V.
, Podvoyskaya V.S.
, Dorovatovskii P.V.
, Lazarenko V.A.
, Zubavichus Y.V.
, Khrustalev V.N.
The Synthesis, Characterization, and Structure of (ThioH) 2 [OsX 6 ] (X = Cl, Br)
Polyhedron. 2017. V.134. P.114-119. DOI: 10.1016/j.poly.2017.05.057 WOS Scopus РИНЦ
The Synthesis, Characterization, and Structure of (ThioH) 2 [OsX 6 ] (X = Cl, Br)
Polyhedron. 2017. V.134. P.114-119. DOI: 10.1016/j.poly.2017.05.057 WOS Scopus РИНЦ
Dates:
Submitted: | Apr 17, 2017 |
Accepted: | May 31, 2017 |
Published online: | Jun 8, 2017 |
Published print: | Sep 25, 2017 |
Identifiers:
Web of science | WOS:000409151700014 |
Scopus | 2-s2.0-85021315231 |
Elibrary | 31029953 |
Chemical Abstracts | 2017:1038124 |
Chemical Abstracts (print) | 167:195117 |
OpenAlex | W2621579260 |