Premium
Synthesis of μ‐C 2 S 4 4− Cobalt Complexes by Activation of the 1,3,4,6‐tetrathiapentalene‐2,5‐dione, and Electrochemical Study of [(Cp*Co) 2 (μ‐C 2 S 4 )]
Author(s) -
Guyon Fabrice,
Jourdain Isabelle V.,
Knorr Michael,
Lucas Dominique,
Monzon Theresa,
Mugnier Yves,
Avarvari Narcis,
Fourmigué Marc
Publication year - 2002
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200208)2002:8<2026::aid-ejic2026>3.0.co;2-0
Subject(s) - chemistry , oxidizing agent , bimetallic strip , electrochemistry , cobalt , yield (engineering) , crystal structure , metal , medicinal chemistry , x ray crystallography , stereochemistry , inorganic chemistry , crystallography , diffraction , organic chemistry , electrode , physics , optics , metallurgy , materials science
The bimetallic complex [Cp ( * ) Co) 2 (μ‐C 2 S 4 )] in which the two metal centres are linked by an ethylenetetrathiolate C 2 S 4 4− unit, was synthesized in high yield by oxidative addition of 1,3,4,6 tetrathiapentalene‐2,5‐dione to [Cp ( * ) Co(CO) 2 ]. The X‐ray crystal structure of the intermediate product Cp*Co(dmid) (dmid 2− = 4,5‐disulfanyl‐1,3‐dithiol‐2‐onate) is presented. The electrochemical behaviour of the [(Cp*Co) 2 (μ‐C 2 S 4 )] complex was studied in detail in the oxidative range. This study has shown that the nature of the product obtained after oxidation depends on the presence of complexing agent in the solution. The mechanism has been elucidated in a CH 2 Cl 2 solution in the presence of P(OMe) 3 . In addition, chemical oxidation was conducted with several oxidizing agents (Br 2 , TCNQF 4 , and AgBF 4 ). The molecular structure of the tetrathiooxalate bridged complex [(Cp*Co{P(OMe) 3 }) 2 (μ‐C 2 S 4 )](BF 4 ) 2 was established by an X‐ray diffraction study. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)