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cis/trans isomers of PtX2L2(X=halogen, L=neutral ligand); the crystal structures of two polymorphs of cis-dichlorobis(dibenzyl sulphidokS)platinum(II) in the temperature range 100-295 K.

Hansson, Christian LU ; Lindqvist, Maria and Oskarsson, Åke LU (2008) In Acta Crystallographica. Section B: Structural Science, Crystal Engineering and Materials 64(2). p.187-195
Abstract
The structures of two polymorphs, one triclinic and one monoclinic, of cis-dichlorobis(dibenzyl sulfido-kS)platinum(II), cis-PtCl2(Bz2S)2 have been determined at 295, 250, 200, 150 and 100 K. In both polymorphs the complex has a structure where platinum(II) coordinates two dibenzyl sulfide molecules and two chloro ligands, forming a complex with pseudo-sqare-planar coordination geometry. The triclinic polymorph shows disorder at all temperatures. Both polymorphs have a packing arrangement involving centrosymmetric structural dimers. cis-PtCl2(Bz2S)2 belongs to a group of complexes with the general formula PtX2L2, where X is a halogen and L is a ligand with a donor atom from groups 14, 15 or 16. The distribution of structural classes among... (More)
The structures of two polymorphs, one triclinic and one monoclinic, of cis-dichlorobis(dibenzyl sulfido-kS)platinum(II), cis-PtCl2(Bz2S)2 have been determined at 295, 250, 200, 150 and 100 K. In both polymorphs the complex has a structure where platinum(II) coordinates two dibenzyl sulfide molecules and two chloro ligands, forming a complex with pseudo-sqare-planar coordination geometry. The triclinic polymorph shows disorder at all temperatures. Both polymorphs have a packing arrangement involving centrosymmetric structural dimers. cis-PtCl2(Bz2S)2 belongs to a group of complexes with the general formula PtX2L2, where X is a halogen and L is a ligand with a donor atom from groups 14, 15 or 16. The distribution of structural classes among 173 cis-PtX2L2 compounds found in the Cambridge Structural Database (CSD, Version 5.28, November 2006) has been investigated. The predominant structural class [notation according to Belsky & Zorkii (1977). Acta Cryst. A33, 1004-1006] among cis compounds is P21/c, Z=4(1) (73 structures, 42 %), followed by P-1, Z= 2(1) (33 structures, 19 %). Inversion centres combined with the screw-axis/glide plane are the dominationg packing operators (56 %) followed by the inversion centre (21 %). The cis and trans influence in cis/trans-PtCl2L2 compounds has been investigated using data from CSD. The cis.influence is small for donor atoms in groups 15 and 16. The trans influence is small for group 16 donor atoms and for nitrogen, but for phosphorus it is significantly greater than the other donor atoms studied. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
polymorphism, packing arrangement, structural classes, structural dimers, static disorder, cis and trans isomerism
in
Acta Crystallographica. Section B: Structural Science, Crystal Engineering and Materials
volume
64
issue
2
pages
187 - 195
publisher
Wiley-Blackwell
external identifiers
  • pmid:18369290
  • wos:000253992600007
  • scopus:40849098656
ISSN
2052-5206
DOI
10.1107/S0108768108005211
language
English
LU publication?
yes
id
4983076f-b75e-46c3-be8e-38600f44c0f8 (old id 1036485)
date added to LUP
2008-05-23 09:30:06
date last changed
2017-01-01 05:55:44
@article{4983076f-b75e-46c3-be8e-38600f44c0f8,
  abstract     = {The structures of two polymorphs, one triclinic and one monoclinic, of cis-dichlorobis(dibenzyl sulfido-kS)platinum(II), cis-PtCl2(Bz2S)2 have been determined at 295, 250, 200, 150 and 100 K. In both polymorphs the complex has a structure where platinum(II) coordinates two dibenzyl sulfide molecules and two chloro ligands, forming a complex with pseudo-sqare-planar coordination geometry. The triclinic polymorph shows disorder at all temperatures. Both polymorphs have a packing arrangement involving centrosymmetric structural dimers. cis-PtCl2(Bz2S)2 belongs to a group of complexes with the general formula PtX2L2, where X is a halogen and L is a ligand with a donor atom from groups 14, 15 or 16. The distribution of structural classes among 173 cis-PtX2L2 compounds found in the Cambridge Structural Database (CSD, Version 5.28, November 2006) has been investigated. The predominant structural class [notation according to Belsky & Zorkii (1977). Acta Cryst. A33, 1004-1006] among cis compounds is P21/c, Z=4(1) (73 structures, 42 %), followed by P-1, Z= 2(1) (33 structures, 19 %). Inversion centres combined with the screw-axis/glide plane are the dominationg packing operators (56 %) followed by the inversion centre (21 %). The cis and trans influence in cis/trans-PtCl2L2 compounds has been investigated using data from CSD. The cis.influence is small for donor atoms in groups 15 and 16. The trans influence is small for group 16 donor atoms and for nitrogen, but for phosphorus it is significantly greater than the other donor atoms studied.},
  author       = {Hansson, Christian and Lindqvist, Maria and Oskarsson, Åke},
  issn         = {2052-5206},
  keyword      = {polymorphism,packing arrangement,structural classes,structural dimers,static disorder,cis and trans isomerism},
  language     = {eng},
  number       = {2},
  pages        = {187--195},
  publisher    = {Wiley-Blackwell},
  series       = {	Acta Crystallographica. Section B: Structural Science, Crystal Engineering and Materials },
  title        = {cis/trans isomers of PtX2L2(X=halogen, L=neutral ligand); the crystal structures of two polymorphs of cis-dichlorobis(dibenzyl sulphidokS)platinum(II) in the temperature range 100-295 K.},
  url          = {http://dx.doi.org/10.1107/S0108768108005211},
  volume       = {64},
  year         = {2008},
}