An unprecedented 1,4-diphospha-2,3-disila butadiene (–PSi–SiP–) derivative and a 1,3-diphospha-2-silaallyl anion, each stabilized by the amidinate ligand

Subrata Kundu; Chandrajeet Mohapatra; Prinson P. Samuel; Johannes Kretsch; M. G. Walawalkar; Regine Herbst-Irmer; Dietmar Stalke; Sriman De; Debasis Koley; Herbert W. Roesky

doi:10.1039/C6CC09171G

An unprecedented 1,4-diphospha-2,3-disila butadiene (–PSi–SiP–) derivative and a 1,3-diphospha-2-silaallyl anion, each stabilized by the amidinate ligand†

Subrata Kundu,^a Chandrajeet Mohapatra,^a Prinson P. Samuel,^a Johannes Kretsch,^a M. G. Walawalkar,^a Regine Herbst-Irmer,^a Dietmar Stalke,*^a Sriman De,^b Debasis Koley*^b and Herbert W. Roesky*^a

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* Corresponding authors

^a Institut für Anorganische Chemie, Georg-August-Universität, Tammannstraße 4D-37077, Göttingen, Germany
E-mail: hroesky@gwdg.de, dstalke@chemie.uni-goettingen.de

^b Department of Chemical Sciences, IISER-Kolkata, Mohanpur Campus, Mohanpur 741252, India
E-mail: koley@iiserkol.ac.in

Abstract

The first acyclic 4π-electron –P [double bond, length as m-dash] Si–SiP– motif with two four coordinate silicon substituents supported by the amidinate ligand and two coordinate phosphorus has been synthesized from the reaction of heteroleptic chlorosilylene LSiCl (1), TripPCl₂ (Trip = 2,4,6-ⁱPr₃C₆H₂) and KC₈ in a 1 : 1 : 3 ratio. The same reaction in a 1 : 2 : 6 ratio in the presence of one equivalent of 18-crown-6 ether affords the 1,3-diphospha-2-silaallyl anion.

Chemical Communications

An unprecedented 1,4-diphospha-2,3-disila butadiene (–PSi–SiP–) derivative and a 1,3-diphospha-2-silaallyl anion, each stabilized by the amidinate ligand†

Abstract

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An unprecedented 1,4-diphospha-2,3-disila butadiene (–PSi–SiP–) derivative and a 1,3-diphospha-2-silaallyl anion, each stabilized by the amidinate ligand

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