(η2,η2-Cycloocta-1,5-diene)[2-(diphenylphosphanylmethyl)pyridine-κ2N,P]rhodium(I) tetrafluoridoborate 1,2-dichloroethane monosolvate

• Main Authors: Siping Wei, Saskia Möller, Detlef Heller, Hans-Joachim Drexler
• Format: Article
• Language: English
• Published: International Union of Crystallography 2016-08-01
• Series: IUCrData
• Subjects: crystal structure; polymorph; rhodium complex
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S2414314616013183

The title compound, [Rh(C8H12)(C18H16NP)]BF4 has been prepared as a precatalyst for applications in rhodium-catalysed additions of carbocyclic acids to terminal alkynes leading to anti-Markovnikov Z-enol esters. Here the triclinic pseudopolymorph of the title compound is presented. In contrast to the earlier reported pseudopolymorph (orthorhombic space group) [Wei et al. (2013). Chem. Eur. J. 19, 12067–12076], the triclinic polymorph contains half a molecule of dichloromethane as solvent in the asymmetric unit. The rhodium(I) atom exhibits a square-planar coordination. The estimated diffraction contribution of the disordered solvent (a half molecule of dichloroethane per asymmetric unit) was subtracted from the observed diffraction data using the SQUEEZE [Spek (2015). Acta Cryst. C71, 9–16] routine in PLATON. The given chemical formula and other crystal data do not take the solvent into account.