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trans-Carbonylchloridobis(ferrocenyldiphenylphosphane-κP)rhodium(I) dichloromethane monosolvate and trans-carbonylchloridobis(ferrocenyldiphenylphosphane-κP)iridium(I) dichloromethane monosolvate.

Authors
Type
Published Article
Journal
Acta Crystallographica Section C Crystal Structure Communications
1600-5759
Publisher
International Union of Crystallography
Publication Date
Volume
67
Issue
Pt 5
Identifiers
DOI: 10.1107/S0108270111014107
PMID: 21540536
Source
Medline
License
Unknown

Abstract

The isomorphous crystal structures of the title compounds, [Fe(2)M(C(5)H(5))(2)(C(17)H(14)P)Cl(CO)]·CH(2)Cl(2) or trans-[MCl(CO)(PPh(2)Fc)(2)]·CH(2)Cl(2) (M = Rh or Ir, and Fc is ferrocenyl), are reported. The data collection for M = Rh was performed at 293 (2) K, while the M = Ir data were collected at 160 (2) K. The compounds crystallize with two independent half-molecules in the asymmetric unit, both occupying inversion centres, and are accompanied by a single dichloromethane molecule on a general position. Due to the symmetry, there is 0.50/0.50 disorder present in the chloride and carbonyl positions. One molecule in each structure also has a second type of disorder in the chloride and carbonyl positions, which was refined over another two positions of equal distribution. The steric impact of the bulky PPh(2)Fc ligands was evaluated using the Tolman cone-angle model, resulting in an average value of 172° for the four molecules in both structures.

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