P. Politzer et Me. Grice, INVESTIGATION OF ANOMALOUS PREDICTED BOND LENGTHS IN SOME 1,1-DIFLUOROHYDRAZINES, Journal of chemical research. Synopses, (7), 1995, pp. 296-297
Bond length anomalies found in some 1,1-difluorohydrazines are conform
ation-dependent and are absent in the presence of strongly electron-at
tracting substituents, supporting their interpretation in terms of cha
rge delocalization.