Zeitschrift fur Naturforschung, B: Chemical Sciences p. 1739 - 1743 (1996)
Update date:2022-08-02
Topics:
Grebe, Jutta
Weller, Frank
Dehnicke, Kurt
N-Iodo-triphenylphosphaneimine, Ph3PNI, has been prepared by thermolysis of the donor acceptor complex [Me3SiNPPh3·ICl] in boiling acetonitrile in the presence of potassium fluoride. Both compounds have been characterized by IR spectroscopy and by crystal structure determinations. [Me3SiNPPh3·ICl]: Space group P1, Z = 2, a = 888.3(1), b = 1070.7(1), c = 1310.2(1) pm, α = 95.15(1)°, β = 108.67(1)°, γ = 97.78(1)° at 20°C. The complex has a molecular structure in which the N atom of the phosphaneimine is connected with the iodine atom of the ICl molecule in a linear arrangement N-I-Cl with bond lengths N-I = 232.7 pm, I-Cl = 255.37 pm. Ph3PNI: Space group P21/n, Z = 4, a = 952.8(1), b = 1800.8(2), c = 1003.6(1) pm, β = 110.25(1)° at -50°C. The compound forms monomeric molecules with bond lengths PN = 159.1 pm, I-N = 205.6 pm and an INP bond angle of 113.3°.
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