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Assignment of phosphorus-31 chemical shifts to isomers of 2,3-dialkoxy-$\lambda 3$-diazadiphosphetidines. Crystal and molecular structure of trans$-[PhNP(OCH_2CF_3)]2$

Krishnamurthy, SS and Cameron, TS and Vincent, BR and Kumaravel, SS (1986) Assignment of phosphorus-31 chemical shifts to isomers of 2,3-dialkoxy-$\lambda 3$-diazadiphosphetidines. Crystal and molecular structure of trans$-[PhNP(OCH_2CF_3)]2$. In: Zeitschrift fuer Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, 41B (9). pp. 1067-1070.

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Abstract

Geometrical isomers of $\lambda$3-diazadiphosphetidines show large differences in their 31P chem. shifts. Trifluoroethoxylation of cis-$(PhNPCl)_2$ gives only the low-field isomer initially, for which the crystal structure is detd. The alkoxy groups are trans to each other. On standing in soln., trans-$[PhNP(OCH_2CF_3)]2 $transforms slowly and almost completely into its cis analog with a high-field 31P chem. shift.

Item Type: Journal Article
Publication: Zeitschrift fuer Naturforschung, Teil B: Anorganische Chemie, Organische Chemie
Publisher: Tuebingen : Verlag der Zeitschrift fur Naturforschung
Additional Information: The copyright belongs to Tuebingen :Verlag der Zeitschrift fur Naturforschung
Keywords: phosphorus-31;chemical shifts;isomers;2,3-dialkoxy;diazadiphosphetidines;molecular structure;Crystal structure
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 25 Jun 2008
Last Modified: 27 Aug 2008 13:29
URI: http://eprints.iisc.ac.in/id/eprint/14458

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