1978 Volume 7 Issue 3 Pages 241-244
Neutral and cationic diaminocyclopropenylidene complexes of palladium (II) and platinum (II), trans-X2-μ-X2M2II(C3(NR2)2)2, (2; M=Pd, 3; M=Pt) , cis-R3′PX2MIIC3(NR2)2 (4; M=Pd), and [trans-(R3′P)2 XMIIC3(NR2)2]+ClO4− (5; M=Pd, 6; M=Pt) were synthesized. Stereochemistry of the peripheral dialkylamino groups was briefly discussed on the basis of infrared and 13C-nmr spectra. Low C–N stretching frequency and small rotational barrier about the C–N bond indicate that diaminocyclopropenylidene coordinates to the transition metal as a carbene.
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