Poly[hydrazin-1-ium [diaquabis(μ4-pyridazine-3,6-dicarboxylato)trilithate] monohydrate]

• Main Authors: Wojciech Starosta, Janusz Leciejewicz
• Format: Article
• Language: English
• Published: International Union of Crystallography 2012-04-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536812012743

The structure of the title compound, {(N2H5)[Li3(C6H2N2O4)2(H2O)2]·H2O}n, is composed of molecular dimers, each built up of two symmetry-related LiI ions with distorted trigonal–bipyramidal coordinations bridged by two deprotonated ligand molecules via their N,O-bonding sites. Doubly solvated LiI ions with a distorted tetrahedral geometry link adjacent dimers, forming a polymer generated by bridging bidentate carboxylato O atoms to LiI ions in adjacent dimers, forming anionic layers parallel to the ac plane with monoprotonated hydrazinium cations and crystal water molecules positioned between them. The layers are held together by an extended system of hydrogen bonds in which the hydrazinium cations and coordinated and crystal water molecules act as donors and carboxylate O atoms act as acceptors.