Citation: Ma, Bao-Qing; Gao, Song; Sun, Hao-Ling; Xu, Guang-Xian (2001). Novel three-dimensional networks cross-linked by two sets of hydrogen bonded frameworks based on 1-D {[M(H2O)4(4,4'-dpdo)][ClO4]2·2(4,4'-dpdo)}n (4,4'-dpdo = 4,4'-bipyridine dioxide; M = Co, Ni, Cu or Zn). Journal of the Chemical Society, Dalton Transactions, , pp. 130-.