(2-Amino-7-methyl-4-oxidopteridine-6-carboxylato-κ3 O 4,N 5,O 6)aqua(ethane-1,2-diamine-κ2 N,N′)nickel(II) dihydrate
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چکیده
The Ni(II) atom in the title complex, [Ni(C(8)H(5)N(5)O(3))(C(2)H(8)N(2))(H(2)O)]·2H(2)O, is six-coordinated in a distorted octa-hedral geometry by a tridentate 2-amino-7-methyl-4-oxidopteridine-6-carboxyl-ate (pterin) ligand, a bidentate ancillary ethane-1,2-diamine (en) ligand and a water mol-ecule. The pterin ligand forms two chelate rings. The en and pterin ligands are arranged nearly orthogonally [dihedral angle between the mean plane of the en mol-ecule and the pterin ring = 77.1 (1)°]. N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds link the complex mol-ecules and lattice water mol-ecules into a three-dimensional network. π-π inter-actions are observed between the pyrazine and pyrimidine rings [centroid-centroid distance = 3.437 (2) Å].
منابع مشابه
(2-Amino-7-methyl-4-oxidopteridine-6-carboxylato-κ3 O 4,N 5,O 6)(ethane-1,2-diamine-κ2 N,N′)(1H-imidazole-κN 3)nickel(II) dihydrate
In the title complex, [Ni(C8H5N5O3)(C2H8N2)(C3N2H4)]·2H2O, a tridentate 2-amino-7-methyl-4-oxidopteridine-6-carboxyl-ate (pterin) ligand, a bidentate ancillary ethane-1,2-diamine (en) ligand and a monodentate 1H-imidazole (im) ligand complete a distorted octa-hedral geometry around the Ni(II) atom. The pterin ligand forms two chelate rings. Both the en and im ligands are arranged nearly orthogo...
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In the title compound, [Cu(C8H5N5O3)(C12H8N2)(H2O)]·3H2O, the Cu(II) cation is O,N,O'-chelated by the 2-amino-7-methyl-4-oxidopteridine-6-carboxyl-ate anion and N,N'-chelated by the 1,10-phenanthroline (phen) ligand. A water mol-ecule further coordinates to the Cu(II) cation to complete the elongated distorted octa-hedral coordination geometry. In the mol-ecule, the pteridine ring system is ess...
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In the title compound, [Co(C8H5N5O3)(C12H8N2)(H2O)]·3H2O, a tridentate 2-amino-7-methyl-4-oxidopteridine-6-carboxyl-ate ligand, a bidentate ancillary 1,10-phenanthroline (phen) ligand and a water mol-ecule complete a distorted octa-hedral geometry around the Co(II) atom. The pterin ligand forms two chelate rings. The phen and pterin ring systems are nearly perpendicular [dihedral angle = 85.15 ...
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