Triclinic modification of tetrakis(triethylammonium) dihydrogenodecavanadate(V)
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چکیده
منابع مشابه
Triclinic modification of tetrakis(triethylammonium) dihydrogenodecavanadate(V)
In the title ammonium polyoxometallate salt, (C(6)H(16)N)(4)[H(2)V(10)O(28)], the anion features O atoms engaged in μ(6)-, μ(3)- and μ(2)-bridging of adjacent V(V) atoms, confering an octa-hedral coordination at each of the twenty unique metal atoms. Two anions are linked by μ(3)- and μ(2)-bridged OH units across a center of inversion, forming a dimer which is linked to the cations by N-H⋯O hyd...
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The unit cell of the title compound, C(7)H(6)O(4)·H(2)O, features four independent formula units; the individual carb-oxy-lic acid mol-ecules themselves are nearly planar (r.m.s. deviations = 0.0189, 0.0334, 0.0356 and 0.0441 Å). Two independent mol-ecules each form two hydrogen bonds by acid-carbonyl O-H⋯O inter-actions and the dimers are also nearly planar (r.m.s. deviations = 0.039 and 0.049...
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The asymmetric unit of the title compound, C(10)H(6)N(4)O(4)S(2), contains two independent but similar mol-ecules. The structure is a triclinic polymorph of the monoclinic structure reported previously [Brito, Mundaca, Cárdenas, López-Rodríguez & Vargas (2007 ▶). Acta Cryst. E63, o3351-o3352]. The most obvious difference between the two polymorphs is the C-S-S-C torsion angle [-80.13 (16), -79....
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The Sn atom in the title compound, [Sn(C(4)H(9))(2)(C(7)H(5)O(3))(2)], is chelated by the carboxyl-ate groups of 2-hydroxy-benzoate liagnds, and exists in a six-coordinate skew-trapezoidal bipyramidal coordination geometry [C-Sn-C = 140.1 (3)°].
متن کاملNon-merohedrally twinned hexamethylenetetramine–4-nitrophenol–water (1/2/1), triclinic modification
The asymmetric unit of the title cocrystal, C(6)H(12)N(4)·2C(6)H(5)NO(3)·H(2)O, contains four formula units, which are linked by O-H⋯O and O-H⋯N hydrogen bonds into chains in the crystal. The crystal studied was a non-merohedral twin, with a minor twin component of 19%.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2011
ISSN: 1600-5368
DOI: 10.1107/s1600536811019696