Tris(3-aminopyrazine-2-carboxylato-κ2 N 1,O)diaquaerbium(III) tetrahydrate
نویسندگان
چکیده
The water-coordinated Er(III) atom in the title compound, [Er(C(5)H(4)N(3)O(2))(3)(H(2)O)(2)]·4H(2)O, is N,O-chelated by three 3-amino-pyrazine-2-carboxyl-ate ions and has a square-anti-prismatic geometry. The mononuclear mol-ecule inter-acts with the solvent water mol-ecules to generate a three-dimensional hydrogen-bonded network.
منابع مشابه
catena-Poly[[[bis(3-aminopyrazine-2-carboxylato)triaquapraseodymium(III)]-μ-3-aminopyrazine-2-carboxylato-[(3-aminopyrazine-2-carboxylato)diaquaformatopraseodymium(III)]-μ-3-aminopyrazine-2-carboxylato] hexahydrate]
The asymmetric unit of the polymeric title compound, {[Pr(2)(C(5)H(4)N(3)O(2))(5)(CHO(2))(H(2)O)(5)]·6H(2)O}(n), has two independent Pr(III) atoms; one is coordinated by two water mol-ecules and the other by three water mol-ecules. The first is N,O-chelated by three 3-amino-pyrazine-2-carboxyl-ate ions, whereas the second is chelated by two carboxyl-ate ions; both exist in a monocapped square-a...
متن کاملPentaaqua(5-carboxypyridine-2-carboxylato-κ2 N,O 2)(pyridine-2,5-dicarboxylato-κ2 N,O 2)cerium(III) tetrahydrate
In the title compound, [Ce(C(7)H(3)NO(4))(C(7)H(4)NO(4))(H(2)O)(5)]·4H(2)O, the Ce(3+) ion is nine-coordinated by two O atoms and two N atoms from one single and from one double deprotonated pyridine-2,5-dicarboxyl-ate ligand and five water mol-ecules in a distorted monocapped square-anti-prismatic geometry. In the crystal, extensive O-H⋯O hydrogen-bonding inter-actions result in a three-dimens...
متن کامل(μ-6-Oxido-4-oxo-1,2-dihydropyrimidine-5-carboxylato-κ4 O 5,O 6:O 2,N 3)bis[aquabis(4-oxido-2-oxo-1,2-dihydropyrimidin-3-ium-5-carboxylato-κ2 O 4,O 5)(1,10-phenanthroline-κ2 N,N′)neodymium(III)] hexahydrate
The water-coordinated neodymium(III) atom in the centrosymmetric title compound, [Nd(2)(C(5)H(2)N(2)O(4))(C(5)H(3)N(2)O(4))(4)(C(12)H(8)N(2))(2)(H(2)O)(2)]·6H(2)O is chelated by a 1,10-phenanthroline heterocycle and two 2,4-dihydroxy-pyrimidine-5-carboxyl-ate dianions. Two tris-chelated water-coordinated units are bridged by a 2,4-dihydroxy-pyrimidine-5-carboxyl-ate dianion, which is disordered...
متن کاملBis(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...
متن کاملAmmonium tris(3-aminopyrazine-2-carboxylato-κ2 N 1,O)nickelate(II) trihydrate
The Ni(II) atom in the title hydrated salt, (NH(4))[Ni(C(5)H(4)N(3)O(2))(3)]·3H(2)O, is N,O-chelated by the three 3-aminopyrazine-2-carboxyl-ate ligands, resulting in a distorted octa-hedral mer-NiN(3)O(3) geometry for the metal. In the crystal, the complex anion, ammonium cation and uncoordinated water mol-ecules are linked by extensive N-H⋯N, N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds, forming a t...
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عنوان ژورنال:
دوره 67 شماره
صفحات -
تاریخ انتشار 2011