Synthesis of phosphine substituted beta-diketiminate based isomeric Ge(II) complexes

N Dastagiri Reddy; Anukul Jana; Herbert W Roesky; Prinson P Samuel; Carola Schulzke

doi:10.1039/b915403e

Synthesis of phosphine substituted beta-diketiminate based isomeric Ge(II) complexes

Dalton Trans. 2010 Jan 7:(1):234-8. doi: 10.1039/b915403e. Epub 2009 Nov 9.

Authors

N Dastagiri Reddy¹, Anukul Jana, Herbert W Roesky, Prinson P Samuel, Carola Schulzke

Affiliation

¹ Department of Chemistry, Pondicherry University, Pondicherry, 605014, India. [email protected]

PMID: 20023955
DOI: 10.1039/b915403e

Abstract

Treatment of phosphine substituted beta-diketiminate lithium, Ph2PC[C(Me)N(Dipp)]2LiOEt2 (1) (Dipp = 2,6-iPr2C6H3) with dioxane x GeCl2 resulted in a five-membered N,P chelate complex, Ph2PC[C(Me)N(Dipp)]2GeCl (2). An isomer of 2 CH{[C(CH2PPh2)N(Dipp)][C(Me)N(Dipp)]}GeCl (5) was obtained from the germanium complex L'Ge (L' = CH[C(CH2)N(Dipp)][C(Me)N(Dipp)])Ge (4) and Ph2PCl. In 5 the PPh2 group remains uncoordinated. Both complexes were characterized by X-ray structural analysis and in the case of 5 both enantiomers crystallize in the same unit cell.