Supramolecular equivalence of halogen, ethynyl and hydroxy groups. A comparison of the crystal structures of some 4-substituted anilines.
; Jetti, Ram K. R.; Boese, Roland
; Desiraju, Gautam R.
CrystEngComm - 2003, Band 5, S. 248 - 252
Chloro, bromo, and ethynyl substituents play exactly the same role in the crystal structures of the corresponding 4-substituted anilines and this is related to their similar polarizations. The iodo deriv. is, however, distinct and this may be related to its greater size.