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Crystal structures of two deca-vanadates(V) with penta-aqua-manganese(II) pendant groups: (NMe4)2[V10O28{Mn(H2O)5}2]·5H2O and [NH3C(CH2OH)3]2[V10O28{Mn(H2O)5}2]·2H2O.

Franco MP, Rüdiger AL, Soares JF, Nunes GG, Hughes DL - Acta Crystallogr E Crystallogr Commun (2015)

Bottom Line: In both compounds, the H atoms from the coordinating water mol-ecules participate in extensive three-dimensional hydrogen-bonding networks, which link the cluster units both directly and through solvent mol-ecules and, in B, through the 'tris-' cation hydroxyl groups.The cation in B also participates in N-H⋯O hydrogen bonds.A number of C-H⋯O inter-actions are also observed in both structures.

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Affiliation: Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas, 81530-900 Curitiba, PR, Brazil.

ABSTRACT
Two heterometallic deca-vanadate(V) compounds, bis-(tetra-methyl-ammonium) deca-aquadi-μ4-oxido-tetra-μ3-oxido-hexa-deca-μ2-oxido-hexa-oxidodimang-anese(II)-deca-vanadate(V) penta-hydrate, (Me4N)2[V10O28{Mn(H2O)5}2]·5H2O, A, and bis-{[tris-(hy-droxy-meth-yl)meth-yl]ammonium} deca-aquadi-μ4-oxido-tetra-μ3-oxido-hexa-deca-μ2-oxido-hexa-oxidodimanganese(II)deca-vanadate(V) dihydrate, [NH3C(CH2OH)3]2[V10O28{Mn(H2O)5}2]·2H2O, B, have been synthesized under mild reaction conditions in an aqueous medium. Both polyanions present two [Mn(OH2)5](2+) complex units bound to the deca-vanadate cluster through oxide bridges. In A, the deca-vanadate unit has 2/m symmetry, whereas in B it has twofold symmetry. Apart from this, the main differences between A and B rest on the organic cations, tetra-methyl-ammonium and [tris-(hy-droxy-meth-yl)meth-yl]ammonium, respectively, and on the number and arrangement of the water mol-ecules of crystallization. In both compounds, the H atoms from the coordinating water mol-ecules participate in extensive three-dimensional hydrogen-bonding networks, which link the cluster units both directly and through solvent mol-ecules and, in B, through the 'tris-' cation hydroxyl groups. The cation in B also participates in N-H⋯O hydrogen bonds. A number of C-H⋯O inter-actions are also observed in both structures.

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The anion of compound B viewed approximately down the a axis of the V10O28 moiety. [Symmetry code: (1) 1 − x, y,  − z.]
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fig3: The anion of compound B viewed approximately down the a axis of the V10O28 moiety. [Symmetry code: (1) 1 − x, y,  − z.]

Mentions: The V10O28 moiety in the structure of compound B lies about a twofold symmetry axis which passes through the vanadium atoms V6 and V7, Fig. 2 ▸. This is the only crystallographic symmetry in this ion which, nevertheless, shows a very similar structure to that found in the ion in compound A; views showing this pseudo-symmetry are presented in Figs. 3 ▸, 4 ▸ and 5 ▸. The unique part here is one half of the anion. The previously reported analysis of this anion [with a 2-(2-hy­droxy­eth­yl)pyridinium cation] showed the cluster to be lying about an inversion centre (Klištincová et al., 2009 ▸).


Crystal structures of two deca-vanadates(V) with penta-aqua-manganese(II) pendant groups: (NMe4)2[V10O28{Mn(H2O)5}2]·5H2O and [NH3C(CH2OH)3]2[V10O28{Mn(H2O)5}2]·2H2O.

Franco MP, Rüdiger AL, Soares JF, Nunes GG, Hughes DL - Acta Crystallogr E Crystallogr Commun (2015)

The anion of compound B viewed approximately down the a axis of the V10O28 moiety. [Symmetry code: (1) 1 − x, y,  − z.]
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4384578&req=5

fig3: The anion of compound B viewed approximately down the a axis of the V10O28 moiety. [Symmetry code: (1) 1 − x, y,  − z.]
Mentions: The V10O28 moiety in the structure of compound B lies about a twofold symmetry axis which passes through the vanadium atoms V6 and V7, Fig. 2 ▸. This is the only crystallographic symmetry in this ion which, nevertheless, shows a very similar structure to that found in the ion in compound A; views showing this pseudo-symmetry are presented in Figs. 3 ▸, 4 ▸ and 5 ▸. The unique part here is one half of the anion. The previously reported analysis of this anion [with a 2-(2-hy­droxy­eth­yl)pyridinium cation] showed the cluster to be lying about an inversion centre (Klištincová et al., 2009 ▸).

Bottom Line: In both compounds, the H atoms from the coordinating water mol-ecules participate in extensive three-dimensional hydrogen-bonding networks, which link the cluster units both directly and through solvent mol-ecules and, in B, through the 'tris-' cation hydroxyl groups.The cation in B also participates in N-H⋯O hydrogen bonds.A number of C-H⋯O inter-actions are also observed in both structures.

View Article: PubMed Central - HTML - PubMed

Affiliation: Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas, 81530-900 Curitiba, PR, Brazil.

ABSTRACT
Two heterometallic deca-vanadate(V) compounds, bis-(tetra-methyl-ammonium) deca-aquadi-μ4-oxido-tetra-μ3-oxido-hexa-deca-μ2-oxido-hexa-oxidodimang-anese(II)-deca-vanadate(V) penta-hydrate, (Me4N)2[V10O28{Mn(H2O)5}2]·5H2O, A, and bis-{[tris-(hy-droxy-meth-yl)meth-yl]ammonium} deca-aquadi-μ4-oxido-tetra-μ3-oxido-hexa-deca-μ2-oxido-hexa-oxidodimanganese(II)deca-vanadate(V) dihydrate, [NH3C(CH2OH)3]2[V10O28{Mn(H2O)5}2]·2H2O, B, have been synthesized under mild reaction conditions in an aqueous medium. Both polyanions present two [Mn(OH2)5](2+) complex units bound to the deca-vanadate cluster through oxide bridges. In A, the deca-vanadate unit has 2/m symmetry, whereas in B it has twofold symmetry. Apart from this, the main differences between A and B rest on the organic cations, tetra-methyl-ammonium and [tris-(hy-droxy-meth-yl)meth-yl]ammonium, respectively, and on the number and arrangement of the water mol-ecules of crystallization. In both compounds, the H atoms from the coordinating water mol-ecules participate in extensive three-dimensional hydrogen-bonding networks, which link the cluster units both directly and through solvent mol-ecules and, in B, through the 'tris-' cation hydroxyl groups. The cation in B also participates in N-H⋯O hydrogen bonds. A number of C-H⋯O inter-actions are also observed in both structures.

No MeSH data available.


Related in: MedlinePlus