D. Boys, R. Araya-Maturana, O. González
Jan 15, 1995
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Abstract
The crystal structure of the title phosphonium salt consists of a tetrahedral (C 6 H 5 )P + C(C 4 H 8 )(COOCH 2 CH 3 ) cation and a Br − anion. The triphenylphosphonium group has P-C(phenyl) distances which are equal within experimental error [mean 1.802 (9) A] and is attached directly to an endocyclic tertiary C atom with a larger P-C distance of 1.857 (8) A. The tetrahedral C-P-C angles range from 104.9 (4) to 114.4 (4)°. The carbonyl O atom of the ethoxycarbonyl group is located on the opposite side of the positively charged P atom