Preparation of cis- and trans-[OsCl2(Me2SO)4], and X-ray crystal structures of the all-S-bound isomers

Andrew M. McDonagh; Mark G. Humphrey; David C.R. Hockless

doi:10.1071/C98017

Preparation of cis- and trans-[OsCl₂(Me₂SO)₄], and X-ray crystal structures of the all-S-bound isomers

Andrew M. McDonagh, Mark G. Humphrey^*, David C.R. Hockless

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

Efficient syntheses of the cis and trans isomers of [OsCl₂(Me₂SO)₄] are reported. While a structural study of the trans isomer confirms the spectroscopically assigned all-S-bound Me₂SO configuration, a crystallographic determination of the cis isomer reveals a previously unheralded all-S-bound Me₂SO geometry, in contrast to the spectroscopically inferred configuration predominant in solution which has one O-bound ligand. For trans-[OsCl₂(Me₂SO)₄], crystals are tetragonal, space group I 4/m, with a 9·092(2), c 11·212(3) Å, Z 2, 566 unique reflections (34 parameters), converging at R 0·026 and R_w 0·032. For cis-[OsCl₂(Me₂SO)₄], crystals are triclinic, space group P1̄, with a 8·193(2), b 8·941(3), c 13·837(3) Å, α 79·77(2), β 79·91(2), γ 65·03(2)°, Z 2, 4152 unique reflections (173 parameters), converging at R 0·021 and R_w 0·018.

Original language	English
Pages (from-to)	807-811
Number of pages	5
Journal	Australian Journal of Chemistry
Volume	51
Issue number	9
DOIs	https://doi.org/10.1071/C98017
Publication status	Published - 1998

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title = "Preparation of cis- and trans-[OsCl2(Me2SO)4], and X-ray crystal structures of the all-S-bound isomers",

abstract = "Efficient syntheses of the cis and trans isomers of [OsCl2(Me2SO)4] are reported. While a structural study of the trans isomer confirms the spectroscopically assigned all-S-bound Me2SO configuration, a crystallographic determination of the cis isomer reveals a previously unheralded all-S-bound Me2SO geometry, in contrast to the spectroscopically inferred configuration predominant in solution which has one O-bound ligand. For trans-[OsCl2(Me2SO)4], crystals are tetragonal, space group I 4/m, with a 9·092(2), c 11·212(3) {\AA}, Z 2, 566 unique reflections (34 parameters), converging at R 0·026 and Rw 0·032. For cis-[OsCl2(Me2SO)4], crystals are triclinic, space group P{\=1}, with a 8·193(2), b 8·941(3), c 13·837(3) {\AA}, α 79·77(2), β 79·91(2), γ 65·03(2)°, Z 2, 4152 unique reflections (173 parameters), converging at R 0·021 and Rw 0·018.",

author = "McDonagh, {Andrew M.} and Humphrey, {Mark G.} and Hockless, {David C.R.}",

note = "{\textcopyright} 1998 The Author(s)",

year = "1998",

doi = "10.1071/C98017",

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journal = "Australian Journal of Chemistry",

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AU - McDonagh, Andrew M.

AU - Humphrey, Mark G.

AU - Hockless, David C.R.

PY - 1998

Y1 - 1998

N2 - Efficient syntheses of the cis and trans isomers of [OsCl2(Me2SO)4] are reported. While a structural study of the trans isomer confirms the spectroscopically assigned all-S-bound Me2SO configuration, a crystallographic determination of the cis isomer reveals a previously unheralded all-S-bound Me2SO geometry, in contrast to the spectroscopically inferred configuration predominant in solution which has one O-bound ligand. For trans-[OsCl2(Me2SO)4], crystals are tetragonal, space group I 4/m, with a 9·092(2), c 11·212(3) Å, Z 2, 566 unique reflections (34 parameters), converging at R 0·026 and Rw 0·032. For cis-[OsCl2(Me2SO)4], crystals are triclinic, space group P1̄, with a 8·193(2), b 8·941(3), c 13·837(3) Å, α 79·77(2), β 79·91(2), γ 65·03(2)°, Z 2, 4152 unique reflections (173 parameters), converging at R 0·021 and Rw 0·018.

AB - Efficient syntheses of the cis and trans isomers of [OsCl2(Me2SO)4] are reported. While a structural study of the trans isomer confirms the spectroscopically assigned all-S-bound Me2SO configuration, a crystallographic determination of the cis isomer reveals a previously unheralded all-S-bound Me2SO geometry, in contrast to the spectroscopically inferred configuration predominant in solution which has one O-bound ligand. For trans-[OsCl2(Me2SO)4], crystals are tetragonal, space group I 4/m, with a 9·092(2), c 11·212(3) Å, Z 2, 566 unique reflections (34 parameters), converging at R 0·026 and Rw 0·032. For cis-[OsCl2(Me2SO)4], crystals are triclinic, space group P1̄, with a 8·193(2), b 8·941(3), c 13·837(3) Å, α 79·77(2), β 79·91(2), γ 65·03(2)°, Z 2, 4152 unique reflections (173 parameters), converging at R 0·021 and Rw 0·018.

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DO - 10.1071/C98017

M3 - Article

SN - 0004-9425

VL - 51

SP - 807

EP - 811

JO - Australian Journal of Chemistry

JF - Australian Journal of Chemistry

IS - 9

ER -

Preparation of cis- and trans-[OsCl₂(Me₂SO)₄], and X-ray crystal structures of the all-S-bound isomers

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