A stable cation of a CSi3P five-membered ring with a weakly coordinating chloride anion

Sakya S Sen; Jakob Hey; Maria Eckhardt; Regine Herbst-Irmer; Eric Maedl; Ricardo A Mata; Herbert W Roesky; Manfred Scheer; Dietmar Stalke

doi:10.1002/anie.201104146

A stable cation of a CSi3P five-membered ring with a weakly coordinating chloride anion

Angew Chem Int Ed Engl. 2011 Dec 23;50(52):12510-3. doi: 10.1002/anie.201104146. Epub 2011 Sep 29.

Authors

Sakya S Sen¹, Jakob Hey, Maria Eckhardt, Regine Herbst-Irmer, Eric Maedl, Ricardo A Mata, Herbert W Roesky, Manfred Scheer, Dietmar Stalke

Affiliation

¹ Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany.

PMID: 21960296
DOI: 10.1002/anie.201104146

Abstract

Don't count on counterions: The cyclic five-membered CSi(3)P cation 1 is synthesized in the reaction of benzamidinato-stabilized chlorosilylene and methyl phosphaalkyne. The presence of four π electrons in 1 means it can be considered as a formal, heavier analogue of the cyclopentadienyl cation. Surprisingly the small counteranion (Cl(-)) does not contribute to the ring stability.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Anions / chemistry
Cations / chemistry
Chlorides / chemistry*
Cyclobutanes / chemical synthesis
Cyclobutanes / chemistry*
Models, Molecular
Molecular Structure
Organophosphorus Compounds / chemical synthesis
Organophosphorus Compounds / chemistry*
Silanes / chemical synthesis
Silanes / chemistry*

Substances

Anions
Cations
Chlorides
Cyclobutanes
Organophosphorus Compounds
Silanes