X-RAY CRYSTAL AND MOLECULAR-STRUCTURE OF ICYANO-2H-PYRROL-2-YLIDENE)-1,1,2-TRICYANOETHANIDE AND A NEW X-RAY-ANALYSIS OF ITS MONOCLINIC POLYMORPHIC FORM - EVIDENCE FOR SOLID-STATE EFFECTS ON THE ANION CHARGE-DISTRIBUTION
V. Fares et al., X-RAY CRYSTAL AND MOLECULAR-STRUCTURE OF ICYANO-2H-PYRROL-2-YLIDENE)-1,1,2-TRICYANOETHANIDE AND A NEW X-RAY-ANALYSIS OF ITS MONOCLINIC POLYMORPHIC FORM - EVIDENCE FOR SOLID-STATE EFFECTS ON THE ANION CHARGE-DISTRIBUTION, Journal of chemical research. Synopses, (6), 1995, pp. 228
The tetraphenylarsonium salt of the title metal-complexing anion has b
een isolated in two polymorphic forms: the different crystal packing i
s responsible for the differences in the anion charge distribution in
the two phases, revealed by solid-state UV and IR spectra.