A new zinc(II) complex [ZnL2. 2H(2)O] with pyrazinecarboxylic acid (HL) was
synthesized. Its crystals are present regularly shaped transparent rectang
ular prisms of monoclinic syngony, The main crystallographic parameters det
ermined at 298 K are: ZnC10H6N4O . 2H(2)O, a = 10.309(2), b = 11.097(2), c
= 5.265(1) Angstrom; beta = 99.45(3)degrees, V = 594.1(1) Angstrom(3), Z =
2, space group P2(1)/c. The crystal-chemical structure of the complex was d
iscussed. The two L- ligands are planar and exhibit bidentate coordination
with the zinc atom, The oxygen atoms of the two water molecules complete th
e octahedral surrounding of the zinc atom.