Solution and Crystal Structure of a Hexacoordinate Phosphoranate Bearing Two Martin Ligands and Two Methyl Groups

Abstract

A hexacoordinate phosphoranate bearing two Martin ligands and two methyl groups was synthesized by the reaction of the monocyclic phosphorane bearing a hydroxy group with KH, and was crystallized in the presence of 18-crown-6 ether. The crystal structure of the phosphoranate could be regarded as an intermediate model in the reaction of the O-equatorial methylphosphorane with a methyl anion.

Keywords:

• Hexacoordinate
• hypervalent
• phosphorus
• X-ray analysis

Dedicated to Professor Marian Mikołajczyk from the CBMiM PAN in Łódź, Poland, on the occasion of his 70th birthday.

The authors are grateful to Central Glass Co., Ltd., for the generous gift of hexafluorocumyl alcohol. This work was supported by two Grants-in-Aid for Scientific Research on Priority Areas (Nos. 14340199, 17350021) from the Ministry of Education, Culture, Sports, Science and Technology, Japan.