CONTRIBUTIONS TO THE CHEMISTRY OF PHOSPHO RUS .230. HEXAISOPROPYLTETRADECAPHOSPHANE(6), P(14)I-PR-6, AND HEXAISOPROPYLHEXADECAPHOSPHANE(6),P(16)I-PR-6 - FORMATION AND STRUCTURAL DETERMINATION BY P-31-NMR SPECTROSCOPY

Hexaisopropyltetradecaphosphane(6) (1) and hexaisopropylhexadecaphosph ane(6) (2) are formed together with other isopropylpolycyclophosphanes by the reaction of i-PrPCl2 with P-4 and magnesium and have been enri ched to 30mol% and 10mol%, respectively. According to P-31-NMR spectro scopic investigations, the novel conjuncto-phosphane skeletons of 1 an d 2 are the annelation products of a P-5 ring with a P-11(5) or a P-13 (5) partial skeleton, respectively, joined by a common P-2 bridge. Thu s, 1 is lo-[9.2.1.0(2,9).0(3,7).0(8,13)]tetradecaphosphane and 2 is 0( 2,13).0(3,10).0(4,8).0(12.16)]hexadecaphosphane. The phosphorus hydrid es P14H6 and P16H6 have the same skeletal structures which are also in termediate stages in the formation of Hittorf's phosphorus.