RESUMEN
The two isomorphous title compounds, [1,5,9-tris(2-aminoethoxy)-3,7,11-trihydroxy-3,7,11-tribora-1,5,9-triborata-2,4,6,8,10,12-hexaoxa-13-oxoniatricyclo[7.3.1.0(5,13)]tridecane]cobalt(II), [Co(C(6)H(21)B(6)N(3)O(13))] or Co{B(6)O(7)(OH)(3)[O(CH(2))(2)NH(2)](3)}, and the Ni(II) analogue, [Ni(C(6)H(21)B(6)N(3)O(13))], each consist of an M(II) cation and an inorganic-organic hybrid {B(6)O(7)(OH)(3)[O(CH(2))(2)NH(2)](3)}(2-) anion. The M(II) cation lies on a crystallographic threefold axis (as does one O atom) and is octahedrally coordinated by three N atoms from the organic component. Three O atoms covalently link the B-O cluster and the organic component. Molecules are connected to one another through N-H···O and O-H···O hydrogen bonds, forming a three-dimensional supramolecular network.
RESUMEN
In the crystal structure of the title compound, C(7)H(6)N(3)O(2) (+)·H(2)PO(4) (-)·C(7)H(5)N(3)O(2)·2H(2)O, the components are connected through O-Hâ¯O, N-Hâ¯O and O-Hâ¯N hydrogen-bonding inter-actions, forming a sheet-like structure parallel to (101). Adjacent sheets are further linked together by strong O-Hâ¯O hydrogen-bonds involving the dihydrogenphosphate groups. π-π stacking inter-actions between neighbouring aromatic constituents [centroid-centroid distance 3.653â (3)â Å] help to consolidate the crystal packing.
RESUMEN
The structure of the title compound, catena-poly[[[di-µ-aqua-µ-fumarato-µ-(boric acid)-disodium]-di-µ-aqua] boric acid monosolvate], contains two crystallographically independent Na(+) cations, each being six-coordinated by one fumarate O atom, one boric acid O atom and four water O atoms in a distorted octa-hedral geometry. Adjacent [NaO(2)(OH(2))(4)] units share edges and are linked into chains propagating parallel to [100]. The free boric acid mol-ecules are connected to the chains through strong inter-molecular O-Hâ¯O hydrogen bonds. Additional O-Hâ¯O hydrogen bonds between the water mol-ecules, the free and coordinated boric acid mol-ecules and the fumarate anion lead to the formation of a three-dimensional supra-molecular structure. With the exception of the two water mol-ecules, all other atoms lie on mirror planes.
RESUMEN
The title compound, [Zn(C2H3O2)(C6H18N4)][B5O6(OH)4], contains mixed-ligand [Zn(CH3COO)(teta)]+ complex cations (teta is triethylenetetramine) and pentaborate [B5O6(OH)4]- anions. The [B5O6(OH)4]- anions are connected to one another through hydrogen bonds, forming a three-dimensional supramolecular network, in which the [Zn(CH3COO)(teta)]+ cations are located.
RESUMEN
The title compound 2C(8)H(14)N(2) (2+)·[B(14)O(20)(OH)(6)](4-), contains diprotonated C(8)H(14)N(2) (2+) cations and centrosymmetric tetra-deca-borate anions. The crystal structure is stabilized by O-Hâ¯O and N-Hâ¯O hydrogen bonds.