Issue 5, 1993

Synthesis and crystal structures of (CF3)2As–N[double bond, length half m-dash]PPh3, [Os3(CO)11{(CF3)2As[double bond, length half m-dash]N[double bond, length half m-dash]PPh3}] and [Os3(µ-H)2(CO)9{(CF3)2As[double bond, length half m-dash]N[double bond, length half m-dash]PPh3}]

Abstract

Bis(trifluoromethyl)arsinous azide (CF3)2AsN3 undergoes a Staudinger reaction with PPh3 to give the arsinophosphazene (CF3)2As–N[double bond, length half m-dash]PPh3 which reacts with [Os3(CO)11(MeCN)] and [Os3(µ-H)2(CO)10] to give [Os3(CO)11{(CF3)2As[double bond, length half m-dash]N[double bond, length half m-dash]PPh3}]1 and [Os3(µ-H)2(CO)9{(CF3)2As[double bond, length half m-dash]N[double bond, length half m-dash]PPh3}]2 respectively. Single-crystal X-ray structural studies show that upon complexation (CF3)2As–N[double bond, length half m-dash]PPh3 assumes a highly delocalized electronic structure over the unsymmetrical As–N[double bond, length half m-dash]P segment with the As–N bond distance assuming that of an As[double bond, length half m-dash]N double bond. These two complexes represent the first examples of neutral compounds containing a highly delocalized As[double bond, length half m-dash]N[double bond, length half m-dash]P non-linear structure.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1993, 663-667

Synthesis and crystal structures of (CF3)2As–N[double bond, length half m-dash]PPh3, [Os3(CO)11{(CF3)2As[double bond, length half m-dash]N[double bond, length half m-dash]PPh3}] and [Os3(µ-H)2(CO)9{(CF3)2As[double bond, length half m-dash]N[double bond, length half m-dash]PPh3}]

H. G. Ang, W. L. Kwik, Y. W. Lee and A. L. Rheingold, J. Chem. Soc., Dalton Trans., 1993, 663 DOI: 10.1039/DT9930000663

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