title: Poly[[(μ-3-amino-pyrazine-2-carboxyl-ato-κN,O:O')diaqua-(μ-oxalato-κO,O:O,O)lanthanum(III)] monohydrate].
abstract: The water-coordinated La(III) atom in the title compound, {[La(C(5)H(4)N(3)O(2))(C(2)O(4))(H(2)O)(2)]·H(2)O}(n), is N,O-chelated by a 3-amino-pyrazine-2-carboxyl-ate ion; this ion links adjacent metal atoms to form a chain parallel to [010]. The oxalate ion serves as a bis-bidentate chelate that links adjacent metal atoms to form a chain parallel to [001]. The two bridging ions give rise to a layer motif parallel to (100) in which the La(III) atom exists in a distorted tricapped trigonal prismatic geometry. Extensive hydrogen bonding between the constituents stabilizes the structure.
authors: Shan
authors: S
authors: Gao
authors: Seik Weng
authors: SW
authors: Ng