Browse
Submit Data
Databases
API
Help

Dataset Information

30 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Ethane-1,2-diylbis(methyl-phosphinic acid).

ABSTRACT: In the title compound, C(4)H(12)O(4)P(2), there are two crystallographically independent half-mol-ecules in the asymmetric unit, both molecules lying on centres of symmetry. Each mol-ecule is connected on both sides to neighbouring mol-ecules via strong O-H?O hydrogen bonds. The -POOH groups accept and donate one hydrogen bond in interactions with the neighbouring -POOH group of the adjacent mol-ecule, to give one-dimensional chains along [10]. As each phosphinic acid group donates and accepts one hydrogen bond, the connection between the mol-ecules is best described by a ring motif which can be classified by the Etter symbol R(2) (2)(8).

SUBMITTER: Reiss GJ

PROVIDER: S-EPMC2960156 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Publications

Ethane-1,2-diylbis(methyl-phosphinic acid).

Reiss Guido J GJ Engel Judith S JS

Acta crystallographica. Section E, Structure reports online 20080109 Pt 2

In the title compound, C(4)H(12)O(4)P(2), there are two crystallographically independent half-mol-ecules in the asymmetric unit, both molecules lying on centres of symmetry. Each mol-ecule is connected on both sides to neighbouring mol-ecules via strong O-H⋯O hydrogen bonds. The -POOH groups accept and donate one hydrogen bond in interactions with the neighbouring -POOH group of the adjacent mol-ecule, to give one-dimensional chains along [10]. As each phosphinic acid group donates and accepts o ...[more]

PMID: 21201428

Similar Datasets

{4,4'-Dibromo-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}copper(II).

Project description:In the title compound, [Cu(C(16)H(12)Br(2)N(2)O(2))], the Cu(II) atom is coordinated in a slightly distorted square-planar geometry by two O and two N atoms of the tetra-dentate dianionic 4,4'-dibromo-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphen-olate Schiff base ligand.

| S-EPMC2977491 | biostudies-literature

Bis{μ-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}dinickel(II).

Project description:The asymmetric unit of the title compound, [Ni(2)(C(16)H(14)N(2)O(2))(2)], contains an Ni(II) cation which is coordinated by two imine N atoms and by two phenolate O atoms of the salen ligand {salen = N,N'-bis-(salicyl-idene)ethane-1,2-diamine or 2,2'-[ethane-1,2-diyl-bis(nitrilo-methyl-idyne)]diphenol}, leading to a distorted square-planar conformation. When a secondary Ni-O inter-action > 2.41 Å to the neighbouring phenolate O atom is considered, two mol-ecules are linked into a centrosymmetric dimer with an overall square-pyramidal coordination for the Ni(II) cation. Weak π-π inter-actions with a shortest interplanar distance of 3.704 Å help to stabilize the crystal structure.

| S-EPMC2915108 | biostudies-literature

N,N'-{[Ethane-1,2-diylbis(-oxy)]bis-(ethane-2,1-di-yl)}bis-(4-methyl-benzene-sulfonamide).

Project description:The asymmetric unit of the title compound, C(20)H(28)N(2)O(6)S(2), contains one half-mol-ecule, related to the other half by a twofold rotation axis. The two aromatic rings of the mol-ecule make a dihedral angle of 50.91 (7)°. The O-CH(2)-CH(2)-O and N-CH(2)-CH(2)-O fragments both adopt gauche conformations, with torsion angles of 76.0 (4) and 70.4 (3)°, respectively. In the crystal, adjacent mol-ecules are linked through N-H⋯O hydrogen bonds into chains along the a-axis direction. The chains are further connected via C-H⋯O inter-actions into a two-dimensional supra-molecular network in the ac plane.

| S-EPMC3393259 | biostudies-literature

4,4'-Dibromo-2,2'-{ethane-1,2-diylbis[(methyl-imino)-methyl-ene]}diphenol.

Project description:The asymmetric unit of the title compound, C(18)H(22)Br(2)N(2)O(2), contains one half-mol-ecule that is related to the other half by a center of inversion located at the mid-point of the central C-C bond. The hy-droxy (phenolic) groups are linked to the N atoms by O-H?N hydrogen bonds, which generate S(6) rings.

| S-EPMC3120315 | biostudies-other

Aqua-{6,6'-dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}nickel(II).

Project description:The title complex, [Ni(C(18)H(18)N(2)O(4))(H(2)O)], lies on a mirror plane with the Ni(II) ion coordinated by two N and two O atoms of a tetra-dentate Schiff base ligand and one water O atom in a distorted square-pyramidal enviroment. The -CH(2)-CH(2)- group of the ligand is disordered equally over two sites about the mirror plane. The dihedral angle between the mean planes of the two symmetry-related chelate rings is 37.16?(6)°. In the crystal structure, inter-molecular O-H?O hydrogen bonds link complex mol-ecules into one-dimensional chains along [100] and these chains are linked, in turn, by very weak inter-molecular C-H?O hydrogen bonds into a two-dimensional network.

| S-EPMC2970327 | biostudies-literature

{6,6'-Dieth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}zinc(II) monohydrate.

Project description:The mol-ecule of the title compound, [Zn(C(20)H(22)N(2)O(4))]·H(2)O, deviates from planarity with a dihedral angle between the two benzene rings is 18.3 (1)°. The four-coordinate Zn(II) ion has a distorted square-planar coordination and is N(2)O(2)-chelated by the Schiff base ligand. The Zn(II) ion and solvent water mol-ecule are located on a twofold rotation axis. The structure displays inter-molecular O-H⋯O hydrogen bonding.

| S-EPMC2969102 | biostudies-literature

Aqua-{2,2-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}(3-nitro-benzoato)manganese(III).

Project description:The title compound, [Mn(C(16)H(14)N(2)O(2))(C(7)H(4)NO(4))(H(2)O)], is a Jahn-Teller-distorted manganese(III) monomer with an octa-hedral geometry. The tetra-dentate Schiff base accommodates the Mn(III) ion at the centre of a nearly planar square. The axial positions are occupied by a monodentate carboxyl-ate group and a water mol-ecule. Adjacent monomers inter-act through hydrogen bonding between the noncoordinated C=O group of the carboxyl-ate and the coordinated water mol-ecule to produce chains extending parallel to the b axis.

| S-EPMC2961917 | biostudies-literature

Dimethyl 2,2'-[ethane-1,2-diylbis(sulfanedi-yl)]dibenzoate.

Project description:The title compound, C(18)H(18)O(4)S(2), was synthesized by the reaction of 1,2-dibromo-ethane with methyl thio-salicylate. The complete molecule is generated by crystallographic twofold symmetry: two methyl benzoate units are linked by an -S-(CH(2))(2)-S- bridging chain with a gauche S-CH(2)-CH(2)-S torsion angle [72.88?(16)°]. The two aromatic rings form a dihedral angle of 79.99?(6)°. In the crystal, adjacent mol-ecules are linked into a three-dimensional network by non-classical C-H?O hydrogen bonds.

| S-EPMC3006883 | biostudies-literature

2,2'-[Ethane-1,2-diylbis(-oxy)]dibenz-alde-hyde.

Project description:In the title compound, C16H14O4, the benzene rings are inclined at a dihedral angle of 75.14?(9)°. The torsion angle of the bridging O-C-C-O group is -76.50?(11)°. In the crystal, mol-ecules are linked by C-H?O hydrogen bonds, forming C(6) chains along [100]. Furthermore, C-H?? inter-actions and ?-? stacking inter-actions [centroid-centroid distances = 3.6957?(7) and 3.6735?(8)?Å] contribute to the stability of the crystal packing.

| S-EPMC3793757 | biostudies-literature

{3,3',5,5'-Tetra-meth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}nickel(II).

Project description:The title square-planar nickel complex, [Ni(C(20)H(22)N(2)O(6))], has Ni-N and Ni-O bond lengths of 1.8448?(14)/1.8478?(14) and 1.8536?(12)/1.8520?(12)?Å. There is a slight twist in the two benzene rings at each end of the complex [dihedral angle = 11.11?(5)°]. All the atoms of the meth-oxy substitutents are in the plane of the ring to which they are attached except for one which deviates slightly [0.365?(3)?Å]. In the crystal, weak C-H?O inter-molecular inter-actions connect the mol-ecules.

| S-EPMC2979626 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data