Journal
HETEROCYCLES
Volume 55, Issue 9, Pages 1659-+Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.3987/COM-01-9288
Keywords
fused 1-azaazulene derivative; phosphoimine; X-Ray structure analysis; MO calculation
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3-Phenyl-8-triphenylphosphoimino- and 2-triphenylphosphoimino-1-azaazulenes were prepared by the reaction of the corresponding 8- and 2-amino-1-azaazulenes with triphenylphosphine dibromide. The structure of 3-phenyl-8-triphenylphosphoimino-1-azaazulene was investigated by X-Ray crystallographic analysis and molecular orbital calculation. The P-atom has trigonal bipiramidal coordination and the intramolecular distance between the N-1 and the P-atom is 2.762(6) Angstrom, the existence of an interaction between N-1 and the P-atom is considered.
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