Bis(3-aminopyrazine-2-carboxylato-κ2 N 1,O)diaquanickel(II) dihydrate
نویسندگان
چکیده
In the title compound, [Ni(C5H4N3O2)2(H2O)2]·2H2O, the Ni(II) ion lies on an inversion center and is coordinated in an slightly distorted octa-hedral environment by two N,O-chelating 3-amino-pyrazine-2-carboxyl-ate (APZC) ligands in the equatorial plane and two trans-axial aqua ligands. In the crystal, O-H⋯O, N-H⋯O and O-H⋯N hydrogen bonds involving the solvent water mol-ecules, aqua and APZC ligands form layers parallel to (010). These layers are linked further via O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds involving the axial aqua ligands, amino groups and the carboxyl-ate groups of the APZC ligands, forming a three-dimensional network.
منابع مشابه
Bis(3-aminopyrazine-2-carboxylato-κ2 N 1,O)diaquamanganese(II)
The Mn(II) atom in the title compound, [Mn(C(5)H(4)N(3)O(2))(2)(H(2)O)(2)], exhibits an octa-hedral geometry comprising the two O atoms and two N atoms from two 3-amino-pyrazine-2-carboxyl-ate ligands, which act as chelating ligands, and two water mol-ecules. An intra-molecular N-H⋯O hydrogen bond occurs. In the crystal, N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds link adjacent mol-ecules into a thre...
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In the title compound, [Mn(C(5)H(4)N(3)O(2))(2)(H(2)O)(2)]·H(2)O, the Mn(II) cation, located on a twofold rotation axis, is N,O-chelated by two 3-amino-pyrazine-2-carboxyl-ate anions and coordin-ated by two water mol-ecules in a distorted octa-hedral geometry. The uncoordinated water mol-ecules lies on a twofold rotation axis. Adjacent mol-ecules are linked by O-H⋯O and N-H⋯O hydrogen bonds int...
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The erbium(III) atom in the title compound, [Er(C(5)H(2)N(2)O(4))(C(5)H(3)N(2)O(4))(C(12)H(8)N(2))(2)]·2H(2)O, is located on a twofold rotation axis and chelated by two 1,10-phenanthroline heterocycles as well as by a 2,4-dihydroxy-pyrimidine-5-car-box-yl-ate monoanion and a 2,4-dihydroxy-pyrimidine-5-car-box-yl-ate dianion in a square-anti-prismatic coordination geometry.
متن کاملBis(μ-5-carboxylato-1-carboxylatomethyl-2-oxidopyridinium)-κ2 O 5:O 1;κ2 O 1:O 5-[diaqua(phenanthroline-κ2 N,N′)manganese(II)] dihydrate
The centrosymmetric binuclear title complex, [Mn(2)(C(8)H(5)NO(5))(2)(C(12)H(8)N(2))(2)(H(2)O)(4)]·2H(2)O, was obtained by the reaction of manganese chloride with 5-carb-oxy-1-carboxy-methyl-2-oxidopyridinium and 1,10-phenanthroline. The Mn(II) atom is coordinated by two N atoms from the 1,10-phenanthroline ligand, two O atoms from two 5-carboxyl-ato-1-carboxyl-atomethyl-2-oxidopyridinium ligan...
متن کاملDiaquabis(pyrazine-2-carboxylato-κ2 N 1,O)manganese(II) dihydrate
In the title compound, [Mn(C(5)H(3)N(2)O(2))(2)(H(2)O)(2)]·2H(2)O, the Mn(II) atom, lying on an inversion centre, has a distorted octa-hedral environment and the molecules are linked by O-H⋯O and N-H⋯O hydrogen bonds to form a three-dimensional supra-molecular structure.
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