Cameron Jones

Synthesis and structural characterisation of the first uncoordinated phosphorus-substituted stibolyl anion

Abstract The synthesis, crystal and molecular structures of the 2,4-diphosphastibolyl ring anion, [C 2 1 Bu 2 P 2 Sb] − , are described.

Half sandwich complexes derived from a 2,4-diphosphastibolyl ring anion

Abstract The reaction of the hetero-ring anion [C 2 Bu 2 t P 2 Sb] − with [M( η 4 -1,5-C 8 H 12 )Cl 2 ], M = Rh, Ir, leads to the formation of [M( η 5 -C 2 Bu 2 t P 2 Sb)( η 4 -1,5-C 8 H 12 )], M = Rh 7 , Ir 8 . Treatment of CoCl 2 with either an equimolar mixture of [C 2 Bu 2 t P 2 Sb] − and [C 5 Me 5 ] − , or two equivalents of [C 2 Bu 2 t P 2 Sb] − affords the compounds [Co( η 5 -C 5 Me 5 )( η 4 -C 2 Bu 2 t HP 2 Sb)], 11 , and [Co( η 5 -C 2 Bu 2 t P 2 Sb)( η 4 -C 2 Bu 2 t HP 2 Sb)], 12 , which represent the first examples of diphosphastibacyclopentadiene complexes; the X-ray crystal structures of 7 and 11 are reported.

1,2-ADDITIONS OF PHENYLSELENENYL HALIDES TO PHOSPHAALKYNES

Abstract The preparation of a variety of selenophosphaalkenes by addition of phenylseleneyl halides to phosphaalkynes is described. The process is stereoselective and largely regioselective. The stereoselectivity is explained by postulating the presence of a cyclic selenophosphirenylium cation. The reaction of one of the prepared selenophosphaalkenes with tBuLi is discussed.

CCDC 882993: Experimental Crystal Structure Determination

Related Article: Marcus L. Cole, Aaron J. Davies, Cameron Jones, Peter C. Junk, Alasdair I. McKay and Andreas Stasch|2015|Z.Anorg.Allg.Chem.|641|2233|doi:10.1002/zaac.201500556