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Bis{2-[bis-(2-hy-droxy-eth-yl)amino]-acetato-κO,N,O'}zinc(II).

ABSTRACT: In the crystal structure of the zinc(II) complex of bicine, [Zn(C(6)H(12)NO(4))(2)], the deprotonated amino acid O,N,O'-chelates to the metal atom through a carboxyl-ate O atom, a hy-droxy O atom and the N atom, the three atoms occupying fac positions of the distorted octa-hedron surrounding the metal atom. The metal atom lies on a center of inversion. The uncoordinated carboxyl-ate O atom is hydrogen bonded to the hy-droxy groups of adjacent mol-ecules, these two hydrogen bonds leading to the formation of a three-dimensional network.

SUBMITTER: Lo KM

PROVIDER: S-EPMC3008976 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Crystal structure of bis-{2-[bis-(2-hy-droxy-eth-yl)amino]-ethanol-?(3) O,N,O'}zinc terephthalate.

Project description:In the title salt, [Zn(C6H15NO3)2](C8H4O4), the Zn(II) cation, located on a centre of inversion, is coordinated by four O atoms and two N atoms from two tridentate 2-[bis-(2-hy-droxy-eth-yl)amino]-ethanol (BHEA) ligands, giving rise to a slightly distorted octa-hedral geometry. The terephthalate dianion, located about a centre of inversion, is not coordinated to Zn(II) but is connected through O-H?O contacts with [Zn(BHEA)2](2+) cations, leading to a three-dimensional crystal structure.

| S-EPMC4257296 | biostudies-literature

Bis{N-[2-hy-droxy-1,1-bis-(hy-droxy-methyl)eth-yl]glycinato-?(3) O,N,O'}iron(II).

Project description:In the title compound, [Fe(C6H12NO5)2], the Fe(II) ion lies on an inversion center and is coordinated by two N atoms and four O atoms from two tridentate N-[2-hy-droxy-1,1-bis-(hy-droxy-methyl)eth-yl]glycine ligands, forming a slightly distorted octa-hedral coordination environment. In the crystal, O-H?O, O-H?N and weak C-H?O hydrogen bonds link mol-ecules, forming a three-dimensional network.

| S-EPMC4120612 | biostudies-literature

Azido-{2-[bis-(2-hy-droxy-eth-yl)amino]-ethano-lato-?N,O,O',O''}cobalt(II).

Project description:In the title complex, [Co(C(6)H(14)NO(3))(N(3))] or [Co(teaH(2))N(3)], the Co(II) atom resides in a trigonal-bipymidal O(3)N(2) environment formed by three O atoms and one N atom from a simply deprotonated tetra-dentate triethano-lamine ligand, and one N atom from an azide ligand. The O atoms define the equatorial plane whereas both N atoms are in axial positions. The mononuclear units are linked through O-H?O hydrogen-bonding inter-actions between the ethanol OH groups and the ethano-late O atom of a neighbouring complex into chains running parallel to [010].

| S-EPMC3011546 | biostudies-literature

Bis(2-hy-droxy-eth-yl)ammonium picrate.

Project description:The asymmetric unit of the title salt, C4H12NO2 (+)·C6H2N3O7 (-), contain two bis-(2-hy-droxy-eth-yl)ammonium cations and two picrate anions. An intra-molecular N-H?O hydrogen bond occurs in each cation. In the crystal, mol-ecules are linked via O-H?O and N-H?O hydrogen bonds, which generate two R 2 (1)(6), an R 2 (2)(10) and an R 2 (2)(13) graph-set ring motifs. There are also a number of C-H?O hydrogen bonds present. The sum of these inter-actions leads to the formation a three-dimensional structure.

| S-EPMC3884432 | biostudies-literature

4-[(E)-({4-[Bis-(2-hy-droxy-eth-yl)amino]-phen-yl}imino)-meth-yl]phenol.

Project description:In the title compound, C(17)H(20)N(2)O(3), the amino N atom is in a planar environment (sum of angles = 360.0°). All hy-droxy H atoms are involved in hydrogen bonding. In the crystal structure, two O-H?O and an O-H?N(imino) hydrogen bond result in the formation of a three-dimensional network. The latter hydrogen bonding causes distortion of the planarity of the 4-HO-C(6)H(4)-CH=N-C(6)H(4)- fragment by rotation around the =N-C(Ph) bond. The crystal studied was a non-merohedral twin [refined BASF parameter for the major component = 0.5293?(7)].

| S-EPMC3006715 | biostudies-literature

Crystal structure of 3-[({2-[bis-(2-hy-droxy-benz-yl)amino]-eth-yl}(2-hy-droxy-benz-yl)amino)-meth-yl]-2-hydroxy-5-methyl-benzaldehyde.

Project description:The non-symmetric title mol-ecule, C32H34N2O5, is based on a tetra-substituted ethyl-enedi-amine backbone. The mol-ecular structure consists of three hy-droxy-benzyl groups and one 2-hy-droxy-5-methyl-benzaldehyde group bonded to the N atoms of the di-amine unit. The ethyl-enedi-amine skeleton shows a regular extended conformation, while the spatial orientation of the phenol arms is governed by hydrogen bonds. In the 2-hy-droxy-5-methyl-benzaldehyde group, an intra-molecular S(6) O-H?O hydrogen bond is observed between the alcohol and aldehyde functions, and the neighbouring phenol arm participates in an intra-molecular S(6) O-H?N hydrogen bond. The third phenol group is involved in a bifurcated intra-molecular hydrogen bond with graph-set notation S(6) for O-H?N and O-H?O intra-molecular hydrogen bonds between neighbouring amine and phenol arms, respectively. Finally, the fourth phenol group acts as an acceptor in a bifurcated intra-molecular hydrogen bond and also acts as donor in an inter-molecular hydrogen bond, which connects inversion-related mol-ecules into dimers with R 4 (4)(8) ring motifs.

| S-EPMC4257411 | biostudies-literature

Aqua-bis-(4-chloro-2-hy-droxy-benzoato-κO)(1,10-phenanthroline-κN,N')zinc(II).

Project description:In the title compound, [Zn(C(7)H(4)ClO(3))(2)(C(12)H(8)N(2))(H(2)O)], the Zn(II) cation is coordinated by two 4-chloro-2-salicylate anions, one 1,10-phenanthroline ligand and one water mol-ecule in a square-pyramidal coordination geometry; the Zn cation lies 0.4591 (11) Å from the basal plane. The benzene rings of the anions are involved in π-π stacking. The centroid-centroid distance between parallel benzene rings of adjacent mol-ecules is 3.9017 (17) Å, and the centroid-centroid distance between benzene and pyridine rings of adjacent mol-ecules is 3.584 (2) Å. Intra-molecular O-H⋯O hydrogen bonding is present.

| S-EPMC3151932 | biostudies-literature

Crystal structure of bis-{2-[(2-hy-droxy-eth-yl)amino]-ethanol-?(3) O,N,O'}copper(II) terephthalate.

Project description:The mol-ecular components of the title salt, [Cu(C4H11NO2)2](C8H4O4), are one Cu(II) cation O,N,O'-chelated by two tridentate 2-[(2-hy-droxy-eth-yl)amino]-ethanol ligands, and a terephthalate counter-dianion, located about a centre of inversion. The complex Cu(II) cation is located about a centre of inversion and shows typical Jahn-Teller distortion, with two short Cu-O and two short Cu-N bonds in the equatorial plane and two long Cu-O bonds to the axial atoms. The cations are arranged in sheets parallel to (100), with the centrosymmetric terephthalate anions located between the sheets. Each anion is the acceptor of four O-H?O and two N-H?O hydrogen bonds, forming a three-dimensional network structure.

| S-EPMC4257266 | biostudies-literature

Bis(4-hy-droxy-benzoato-κO,O')bis-(pyridine-κN)copper(II).

Project description:In the title compound, [Cu(C(7)H(5)O(3))(2)(C(5)H(5)N)(2)], the Cu atom is located on an inversion center and is coordinated by the N atoms of the two pyridine ligands, trans to each other, and to the carboxyl-ate O atoms of two bidentate 4-hy-droxy-benzoate ligands [Cu-O = 1.9706 (10) and 2.5204 (11) Å]. Hydrogen bonding between hy-droxy H and carboxyl-ate O atoms results in a layer structure parallel to the ab plane.

| S-EPMC3151994 | biostudies-literature

Crystal structure of aqua-(2-{[2-({2-[bis-(carboxyl-ato-κO-meth-yl)amino-κN]eth-yl}(carboxyl-ato-κO-meth-yl)amino-κN)eth-yl](carb-oxy-meth-yl)aza-niumyl}acetato)-gallium(III) trihydrate.

Project description:In the title GaIII complex compound with pentetic acid, [Ga(C14H20N3O10)(H2O)]·3H2O, the GaIII centre is bound in a slightly distorted octa-hedral coordination sphere by two amine N atoms, three carboxyl-ate O atoms and one water O atom. The complex mol-ecule exists as a zwitterion. In the crystal, the complexes are linked to each other via O-H⋯O and C-H⋯O hydrogen bonds, forming layers parallel to (001). Three uncoordinating water mol-ecules link the complex layers via O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds, forming a three-dimensional network.

| S-EPMC6073008 | biostudies-literature

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