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artículo con referato
"Two nickel complexes stabilized by nitrate counter-ions"
E. Freire, S. Baggio, J.C. Muñoz and R. Baggio
Acta Cryst. C 58(4) (2002) m221-m224
Two new nickel nitrates, diaquabis(3,4,7,8-tetramethyl-1,10-phenanthroline-κ2N,N′)nickel(II) dinitrate methanol solvate, [Ni(C16H16N2)2(H2O)2](NO3)2·CH4O, (I), and triaqua[2,4,6-tris(2-pyridyl)-1,3,5-triazine-κ3N1,N2,N6]nickel(II) dinitrate trihydrate, [Ni(C18H12N6)(H2O)3](NO3)2·3H2O, (II), are reported. In both structures, the cation is octahedrally coordinated, to two bidentate 3,4,7,8-tetramethyl-1,10-phenanthroline (tmp) and two water molecules in (I), and to one tridentate 2,4,6-tris(2-pyridyl)-1,3,5-triazine (tpt) and three water molecules in (II). Both structures are stabilized by extensive hydrogen-bonding interactions.
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