title: Bis[[(6-carb-oxy-pyridazine-3-carboxyl-ato-κN,O)lithium]-μ-penta-hydrogen-dioxy-gen(1+)].
abstract: The structure of the title compound, [Li(C(6)H(3)N(2)O(4))(2)(H(5)O(2))], is composed of centrosymmetric monomers in which an Li(I) ion is chelated by two N,O-bonding groups donated by two ligands. The Li(I) ion and both ligand mol-ecules are coplanar [r.m.s. deviation 0.0047 (2) Å] and water O atoms are in the axial positions. The second carboxyl group of each ligand remains protonated. An additional H atom, located between adjacent coordinated water mol-ecules and observed on Fourier maps, maintains the charge balance within the monomers and bridges them by short symmetric hydrogen bonds of 2.518 (3) Å to form catenated ribbons. The monomers also inter-act via hydrogen bonds in which water and carboxyl O atoms act as donors.
authors: Institute of Nuclear Chemistry and Technology, ul. Dorodna 16, 03-195 Warszawa, Poland.
authors: Wojciech
authors: W
authors: Starosta
authors: Janusz
authors: J
authors: Leciejewicz
references: Inorg Chem. 2007 Jul 9;46(14):5471-3
references: 17569531
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677