title: New coordination motifs of melamine directed by N-H---X (X = Cl or Br) hydrogen bonds.
abstract: Unusual mu(2)- and mu(3)-coordination modes of melamine are found in two organic-inorganic hybrid copper halides, [Cu(2)Br(2)(MA)](n) (1) and [Cu(3)Cl(3)(MA)](n) (2) (MA = melamine), in which the MA ligand affords two N-heterocycle N atoms to link (Cu(2)Br(2))infinity stairs and serves as a novel mu(3) bridge to give a 3D framework, respectively.
authors.affiliation: The State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
authors.forename: Zhao-Ji
authors.initials: ZJ
authors.lastname: Li
authors.forename: Jian-Kai
authors.initials: JK
authors.lastname: Cheng
authors.forename: Pei-Xiu
authors.initials: PX
authors.lastname: Yin
authors.forename: Yuan-Gen
authors.initials: YG
authors.lastname: Yao