Bis[(4-cyano-benz-yl)ammonium] bis-(perchlorate) monohydrate.
The asymmetric unit of the title compound, 2C(8)H(9)N(2) (+)·2ClO(4) (-)·H(2)O, consists of two (4-cyano-benz-yl)>ammonium cations, two disordered ClO(4) (-) anions and one water mol-ecule. The differences in the two cations are reflected in the N-C-C-C torsion angles [-94.7 (3) and -115.9 (3)°]. In addition, the cations show different hydrogen-bonding patterns as one N atom bonds to two O atoms of ClO(4) (-) ions, while the other N atom is involved in hydrogen bonding with the O atoms of the ClO(4) (-) ions and water mol-ecules. In the crystal, N-H⋯O and O-H⋯O hydrogen bonds result in a three-dimensional network. An O atom in each of the anions is disordered over two positions of equal occupancy.
School of Chemical Engineering, Yunnan Radio and TV University, Kunming 650023,  People's Republic of China.
Yao
Y
Huang