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Cobalt(II) and Cobalt(III) Tri‐tert‐butoxysilanethiolates. Synthesis, Properties, Crystal and Molecular Structures of [Co{μ‐SSi(OBut)3}{SSi(OBut)3}(NH3)]2 and [Co{SSi(OBut)3}2(NH3)4][SSi(OBut)3] Complexes
Abstract
The heteroleptic neutral tri‐tert‐butoxysilanethiolate of cobalt(II) incorporating ammonia as additional ligand (1) has been prepared by the reaction of a cobalt(II) ammine complex with tri‐tert‐butoxysilanethiol in water. Complex 1, dissolved in hexane, undergoes oxidation in an ammonia saturated atmosphere to the ionic cobalt(III) compound 2. Molecular and crystal structures of 1 and 2 have been determined by single crystal X‐ray structural analysis. 1 forms a dimeric molecule [Co{μ‐SSi(OBut)3}{SSi(OBut)3}(NH3)]2 with a folded central Co2S2 ring and distorted tetrahedral ligand arrangement at both CoII atoms (CoNS3 core). The product 2 is composed of the octahedral CoIII complex cation [Co{SSi(OBut)3}2(NH3)4]+ and the tri‐tert‐butoxysilanethiolate anion. Within the crystal two pairs of ions interact by hydrogen bonds forming well separated entities. 1 and 2 are the first structurally characterized cobalt thiolates where metal is also bonded to ammonia and 2 is the first cobalt(III) silanethiolate.
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Details
- Category:
- Magazine publication
- Type:
- Magazine publication
- Title of issue:
- Z. anorg. allg. Chem. 627 (2001) strony 271 - 279
- Publication year:
- 2001
- DOI:
- Digital Object Identifier (open in new tab) doi.org/10.1002/1521-3749(200102)627:2<271::aid-zaac271>3.0.co;2-g
- Verified by:
- No verification
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