Thiometalates MS42- (M = Mo, W) or WOS32- react with Re(CO)5(O3SCF3) and Li2E (E = S or Se) to yield the following compds. which were structurally characterized: (NEt4)S:W(μ3-S)Re(CO)33(μ3-S)(NEt4) (I), (NEt4)O/S:W(μ3-S)Re(CO)3(μ3-S)(NEt4) (I/II), (mixed crystals), (NEt4)S:W(μ3-S)Re(CO)33(μ3-Se)(NEt4) (III) and (NEt4)S:Mo(μ3-S)Re(CO)33(μ3-S)(NEt4) (IV). The heterocubane anions I-IV contain electron-rich centers such as Re(I) or sulfide whereas Mo(VI) or W(VI) act as acceptor sites. Accordingly, the absorption spectra show long-wavelength metal-to-ligand charge transfer transitions, and cyclic voltammetry reveals a quasi-reversible redn. of the clusters. Although both 6-coordinate Re(I) and 4-coordinate metal(VI) centers are present in the clusters there is no evidence for significant metal-to-metal charge transfer interaction. on SciFinder(R)
%0 Journal Article
%1 Hornung.2001
%A Hornung, Fridmann
%A Wanner, Matthias
%A Klinkhammer, Karl Wilhelm
%A Kaim, Wolfgang
%A Fiedler, Jan.
%D 2001
%J Zeitschrift fuer Anorganische und Allgemeine Chemie
%K Group VIB chalcogen crystal heterocubane heterocubane;IR heterocubane;redox heterocubane;rhenium potential prepn;UV rhenium structure
%N 10
%P 2430--2444
%T Heterocubane cluster compounds (NEt4)Y:M(μ3-S)Re(CO)33(μ3-E) (M = W or Mo, Y = O or S, E = S or Se). Structures, spectroscopy, and electrochemistry
%V 627
%X Thiometalates MS42- (M = Mo, W) or WOS32- react with Re(CO)5(O3SCF3) and Li2E (E = S or Se) to yield the following compds. which were structurally characterized: (NEt4)S:W(μ3-S)Re(CO)33(μ3-S)(NEt4) (I), (NEt4)O/S:W(μ3-S)Re(CO)3(μ3-S)(NEt4) (I/II), (mixed crystals), (NEt4)S:W(μ3-S)Re(CO)33(μ3-Se)(NEt4) (III) and (NEt4)S:Mo(μ3-S)Re(CO)33(μ3-S)(NEt4) (IV). The heterocubane anions I-IV contain electron-rich centers such as Re(I) or sulfide whereas Mo(VI) or W(VI) act as acceptor sites. Accordingly, the absorption spectra show long-wavelength metal-to-ligand charge transfer transitions, and cyclic voltammetry reveals a quasi-reversible redn. of the clusters. Although both 6-coordinate Re(I) and 4-coordinate metal(VI) centers are present in the clusters there is no evidence for significant metal-to-metal charge transfer interaction. on SciFinder(R)
@article{Hornung.2001,
abstract = {Thiometalates [MS4]2- (M = Mo, W) or [WOS3]2- react with Re(CO)5(O3SCF3) and Li2E (E = S or Se) to yield the following compds. which were structurally characterized: (NEt4){S:W[(μ3-S)Re(CO)3]3(μ3-S)}(NEt4) (I), (NEt4){O/S:W[(μ3-S)Re(CO)3](μ3-S)}(NEt4) (I/II), (mixed crystals), (NEt4){S:W[(μ3-S)Re(CO)3]3(μ3-Se)}(NEt4) (III) and (NEt4){S:Mo[(μ3-S)Re(CO)3]3(μ3-S)}(NEt4) (IV). The heterocubane anions I-IV contain electron-rich centers such as Re(I) or sulfide whereas Mo(VI) or W(VI) act as acceptor sites. Accordingly, the absorption spectra show long-wavelength metal-to-ligand charge transfer transitions, and cyclic voltammetry reveals a quasi-reversible redn. of the clusters. Although both 6-coordinate Re(I) and 4-coordinate metal(VI) centers are present in the clusters there is no evidence for significant metal-to-metal charge transfer interaction. [on SciFinder(R)]},
added-at = {2019-07-15T13:41:23.000+0200},
author = {Hornung, Fridmann and Wanner, Matthias and Klinkhammer, Karl Wilhelm and Kaim, Wolfgang and Fiedler, Jan.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2bf63a6fdb9108e06bac398d785826dc1/b_schwederski},
interhash = {c0144b52936af0cda691842d656e365f},
intrahash = {bf63a6fdb9108e06bac398d785826dc1},
issn = {0044-2313},
journal = {Zeitschrift fuer Anorganische und Allgemeine Chemie},
keywords = {Group VIB chalcogen crystal heterocubane heterocubane;IR heterocubane;redox heterocubane;rhenium potential prepn;UV rhenium structure},
number = 10,
pages = {2430--2444},
timestamp = {2019-07-15T11:42:10.000+0200},
title = {Heterocubane cluster compounds (NEt4){Y:M[(μ3-S)Re(CO)3]3(μ3-E)} (M = W or Mo, Y = O or S, E = S or Se). Structures, spectroscopy, and electrochemistry},
volume = 627,
year = 2001
}
