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Updated: Jun 1, 2026

Characterization of Synthetic Polymers via Matrix Assisted Laser Desorption Ionization Time of Flight (MALDI-TOF) Mass Spectrometry
Published on: June 10, 2018
catena-Poly[[bis-(μ-3-amino-pyrazine-2-carboxyl-ato)-κN,O:O;κO:N,O)dilithium]-di-μ-aqua]
Wojciech Starosta1, Janusz Leciejewicz
1Institute of Nuclear Chemistry and Technology, ul.Dorodna 16, 03-195 Warszawa, Poland.
Abstract:
The title compound, [Li(C(5)H(4)N(3)O(2))(H(2)O)](n), is composed of centrosymmetric dinuclear units, in which the Li(I) ions are bridged by two carboxyl-ate O atoms donated by two ligands. The dinuclear unit is nearly planar [r.m.s. deviation = 0.0125 (2) Å]. The Li(I) ion is coordinated by an N,O-chelating ligand, a bridging carboxyl-ate O atom from another ligand and two bridging water O atoms in a distorted trigonal-bipyra-midal geometry. The water O atoms bridge the dinuclear units into a polymeric mol-ecular column along [010]. The columns are held together by O-H⋯O and N-H⋯N hydrogen bonds. An intra-molecular N-H⋯O inter-action also occurs.
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