Abstract
10,10′-(5H,5′H)-spirobiphenophosphazinium chloride is one of the few examples of a spirophosphonium salt reported in the literature. This compound crystallized in space groupP21/c witha = 12·293(7),b = 13·279(8),c = 17·56(1) Å, β = 130·43(3) ° andZ = 4. The finalR index was 0·057. The results of the X-ray analysis indicated that this phosphorus heterocycle may indeed possess aromatic character. This contention was supported in solution by a31 P nmr study.
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Taken in part from the thesis submitted by R. N. Jenkins for the Ph.D. degree, August 1972.
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Jenkins, R.N., Freedman, L.D. & Bordner, J. Crystal structure of a spirophosphonium compound, C24H18ClN2P,CH3OH. Journal of Crystal and Molecular Structure 3, 103–114 (1973). https://doi.org/10.1007/BF01237433
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DOI: https://doi.org/10.1007/BF01237433