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The exopolyhedral ligand orientation (ELO) in 3‐(nitrato‐κ O )‐3,3‐bis(triphenylphosphane‐κ P )‐3‐rhoda‐1,2‐dicarba‐ closo ‐dodecaborane(11) dichloromethane 2.2‐solvate
Author(s) -
Rosair Georgina M.,
Scott Greig,
Welch Alan J.
Publication year - 2015
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229615008724
Subject(s) - dichloromethane , ligand (biochemistry) , chemistry , stereochemistry , cage , crystallography , combinatorics , solvent , organic chemistry , mathematics , receptor , biochemistry
In the title compound, [Rh(C 2 H 11 B 9 )(NO 3 )(C 18 H 15 P) 2 ]·2.2CH 2 Cl 2 , studied as a 2.2‐solvate of what was assumed to be dichloromethane, the nitrate ligand lies cis with respect to both cage C atoms. Accordingly, the compound displays a pronounced preferred exopolyhedral ligand orientation (ELO) which is traced to both the greater trans influence of the cage B over the cage C atoms and the greater trans influence of the triphenylphosphane ligands over the nitrate ligand. The overall molecular architecture therefore agrees with that of a number of similar 3‐ L ‐3,3‐ L ′ 2 ‐3,1,2‐ closo ‐ M C 2 B 9 H 11 species in the literature.