Synthesis, crystal structure and catalytic activity in reductive amination of di-chlorido-(η6 -p -cymene)(2'-di-cyclo-hexyl-phosphanyl-2,6-di-meth-oxy-biphen-yl-κP )ruthenium(II)

Acta Crystallographica. Section E, Crystallographic Communications
Maria MakarovaYan V Zubavichus

Abstract

The title compound, [RuCl2(C10H14)(C26H35O2P)] (I), crystallizes in the monoclinic space group P21/c with two crystallographically independent mol-ecules (A and B) in the asymmetric unit. The geometries of both mol-ecules are very similar and distinguished only by the twist angles of the two benzene rings in the phosphine substituents [89.54 (14) and 78.36 (14)° for mol-ecules A and B, respectively]. The Ru atoms have classical pseudo-tetra-hedral piano-stool coordination environments. The conformation of each mol-ecule is stabilized by intra-molecular C-H⋯O and C-H⋯Cl hydrogen bonds and C-H⋯π inter-actions. The two mol-ecules are linked by a C-H⋯Cl hydrogen bond. In the crystal, the mol-ecules are further linked by C-H⋯ π inter-actions, forming -A-B-A-B- chains propagating along the a-axis direction. Complex I is an active catalyst for reductive amination reaction. The catalytic activity of this complex can be explained by the lability of the p-cymene ligand, which can be replaced by two-electron ligands such as CO or amine.

References

Dec 22, 2005·Acta Crystallographica. Section D, Biological Crystallography·Philip Evans
Dec 25, 2007·Acta Crystallographica. Section A, Foundations of Crystallography·George M Sheldrick
Jan 28, 2009·Acta Crystallographica. Section D, Biological Crystallography·Anthony L Spek
Apr 5, 2011·Acta Crystallographica. Section D, Biological Crystallography·T Geoff G BattyeAndrew G W Leslie
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Dec 30, 2014·Acta Crystallographica. Section A, Foundations and Advances·George M Sheldrick
Jan 1, 2015·Organic Letters·Pavel N KolesnikovDenis Chusov
Jan 9, 2015·Acta Crystallographica. Section C, Structural Chemistry·George M Sheldrick
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Jul 21, 2017·Organic & Biomolecular Chemistry·Alexey P MoskovetsDenis Chusov

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