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Bis[1,3-bis-(diphenyl-phosphinoylimino)isoindolinato-κO,N,O']calcium(II).

ABSTRACT: In the title compound, [Ca(C(32)H(24)N(3)O(2)P(2))(2)], the 1,3-bis-(diphenyl-phosphinoylimino)isoindoline ligand adopts a tridentate coordination mode. The compound exhibits a distorted octa-hedral geometry. The Ca atom lies on a twofold rotation axis.

SUBMITTER: Li Z

PROVIDER: S-EPMC2915098 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Bis[1,3-bis-(diphenyl-phosphino)propane-κP:P']silver(I) bis-(chloro-difluoro-acetato-κO)triphenyl-stannate(IV).

Project description:In the title salt, [Ag(C(27)H(26)P(2))(2)][Sn(C(6)H(5))(3)(C(2)ClF(2)O(2))], the Ag(I) atom exists in a tetra-hedral coordination geometry formed by four P atoms [Ag-P = 2.460 (1)-2.501 (1) Å], whereas the Sn(IV) atom exists in a trans-trigonal-bipyramidal coordination geometry formed by two O [Sn-O = 2.208 (3) and 2.233 (3) Å] and three C atoms [Sn-C = 2.115 (4)-2.128 (4) Å;(Σ C-Sn-C)= 360.0 (6)°].

| S-EPMC2961205 | biostudies-literature

Crystal structure of di-bromido-bis-(1,3-dibenzyl-1,3-diazinan-2-one-κO)cobalt(II).

Project description:The unit cell of the title complex, [CoBr2(C18H20N2O)2], contains 1.5 formula units per asymmetric unit with one mol-ecule sitting on a general site and a second one halved by a crystallographic twofold rotation axis passing through the Co(II) cation. Both Co(II) atoms are coordinated in a distorted tetra-hedral manner by two Br(-) ligands and two O atoms of the pyrimidinone (OPyr) groups. The Br-Co-Br coordination angles are similar [115.46 (4) and 115.20 (5)°], while the O-Co-O angles differ slightly more [102.26 (18) and 98.1 (2)°]. Similarly, the Co-Br bond lengths are almost identical [2.3721 (9), 2.3757 (10) and 2.3809 (10) Å], with a larger difference between the Co-O bond lengths [1.929 (4), 1.926 (4) and 1.955 (4) Å]. The three independent OPyr groups present envelope conformations, with three C and two N atoms lying in well defined planes with maximum deviations from the least-squares planes of 0.047, 0.031 and 0.036 Å, and the external-most C atoms protruding by 0.654 (6), 0.643 (7) and 0.656 (6) Å out of the planes. The dihedral angles between the planar fractions of the OPyr planes are 50.5 (1)° for the nonsymmetric mol-ecule and 49.7 (1)° for the symmetric one. Non-covalent inter-actions are of the C-H⋯Br type and they are weak, hardly shorter than van der Waals radii, with an H⋯Br distance range of 3.00-3.04 Å. The inter-molecular inter-actions define chains parallel to [101].

| S-EPMC4555415 | biostudies-literature

Aqua-bis(2-amino-1,3-thia-zole-4-acetato-κO,N)nickel(II).

Project description:In the crystal structure of the title compound, [Ni(C(5)H(5)N(2)O(2)S)(2)(H(2)O)], the Ni(II) cation is located on a twofold rotation axis and chelated by two 2-amino-1,3-thia-zole-4-acetate (ata) anions in the basal coordination plane; a water mol-ecule located on the same twofold rotation axis completes the distorted square-pyramidal coordination geometry. Inter-molecular O-H⋯O and N-H⋯O hydrogen bonding, as well as π-π stacking between parallel thia-zole rings [centroid-centroid distance 3.531 (8) Å], helps to stabilize the crystal structure.

| S-EPMC2969729 | biostudies-literature

Tetra-aqua-bis(2-methyl-benzimidazolium-1,3-diacetato-κO)zinc(II) tetra-hydrate.

Project description:The asymmetric unit of the title compound, [Zn(C(12)H(11)N(2)O(4))(2)(H(2)O)(4)]·4H(2)O, contains one-half of the complex mol-ecule and two uncoordin-ated water mol-ecules. The four water O atoms in the equatorial plane around the Zn(II) centre ( symmetry) form a distorted square-planar arrangement, while the distorted octa-hedral coordination geometry is completed by the O atoms of the zwitterionic 2-methyl-benzimidazolium-1,3-diacetate ligands in the axial positions. The benzimidazole ring system is planar, with a maximum deviation of 0.041 (3) Å. Intra-molecular O-H⋯O hydrogen bonding results in the formation of a non-planar six-membered ring. In the crystal structure, strong intra- and inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network. π-π contacts between benzimidazole rings [centroid-centroid distance = 3.899 (1) Å] may further stabilize the structure.

| S-EPMC2969862 | biostudies-literature

catena-Poly[[bis-(p-toluene-sulfonato-κO)palladium(II)]bis-(μ-1,3-di-4-pyridylpropane-κN:N')].

Project description:In the title compound, [Pd(C(7)H(7)O(3)S)(2)(C(13)H(14)N(2))(2)](n), the metal ion, located on a twofold rotation axis, exhibits a slightly distorted octa-hedral coordination environment, with bond angles that deviate by at most 2.2° from an ideal geometry, completed by two O atoms from two deprotonated p-toluene-sulfonic acid ligands and four N atoms from four 1,3-di-4-pyridylpropane ligands. One of the sulfonate O atoms is disordered over two positions [ratio 0.70 (5):0.30 (5)].

| S-EPMC2969940 | biostudies-literature

[(4R,5R)-(2,2-Dimethyl-1,3-dioxolane-4,5-di-yl)bis-(diphenyl-methano-lato)-κO:O']bis(N-methyl-methanamin-ato)titanium(IV).

Project description:In the title four-coordinate complex, [Ti(C(2)H(6)N)(2)(C(31)H(28)O(4))], two symmetry-independent mol-ecules are present in the asymmetric unit. The Ti(IV) atom displays a distorted tetra-hedral geometry, with Ti-O bond lengths ranging from 1.805 (3) to 1.830 (3) Å and O-Ti-O ligand bite angles of 100.16 (12) and 101.36 (12)°. The short Ti-N bond distances, ranging from 1.877 (4) to 1.905 (4) Å, indicate strong bonding between the Ti(IV) atom and the dimethyl-amide ligands.

| S-EPMC3274933 | biostudies-literature

Tetra-aqua-bis-(2-methyl-1H-benzimidazolium-1,3-diacetato-κO)cobalt(II) tetra-hydrate.

Project description:In the title compound, [Co(C(12)H(11)N(2)O(4))(2)(H(2)O)(4)]·4H(2)O, the Co(II) atom lies on an inversion center and is octa-hedrally coordinated by six O atoms from four water mol-ecules and two monodentate zwitterionic 2-methyl-benzimidazolium-1,3-diacetate ligands. An intra-molecular O-H⋯O hydrogen bond occurs. In the crystal, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network. π-π inter-actions between the imidazole and benzene rings [centroid-centroid distance = 3.9031 (17) Å] consolidate the crystal packing.

| S-EPMC3200967 | biostudies-literature

Bis(2,4-dioxo-5,5-diphenyl-imidazol-idin-ido-κN)bis-(propane-1,3-diamine-κN,N')cobalt(II).

Project description:The complex mol-ecule of the title compound, [Co(C(15)H(11)N(2)O(2))(2)(C(3)H(10)N(2))(2)], has crystallographically imposed inversion symmetry. The Co(II) atom displays a distorted octa-hedral coordination geometry. In the phenytoin anion, the two phenyl rings form dihedral angles of 62.26 (8) and 57.47 (9)° with the central imidazole ring. Intra-molecular N-H⋯O and C-H⋯O hydrogen bonds occur. In the crystal, N-H⋯O and C-H⋯O hydrogen bonds forming a three-dimensional network.

| S-EPMC3238769 | biostudies-literature

Bis(pyridine-κN)bis-[4,4,4-trifluoro-1-(4-fluoro-phen-yl)butane-1,3-dionato-κO,O']cobalt(II).

Project description:In the structure of the title compound, [Co(C(10)H(5)F(4)O(2))(2)(C(5)H(5)N)(2)], cobalt(II) forms a complex with two 4,4,4-trifluoro-1-(4-fluoro-phen-yl)butane-1,3-dionate anions and two pyridine mol-ecules in an octa-hedral coordination environment, where the two dionate ligands are in equatorial positions and the two pyridine mol-ecules in axial positions. The complex is located on a crystallographic inversion centre.

| S-EPMC2960175 | biostudies-literature

cis-Bis(nitrato-κO,O')bis-(triethyl-phosphine oxide-κO)nickel(II).

Project description:In the title compound, [Ni(NO(3))(2)(C(6)H(15)OP)(2)], the Ni(II) ion, lying on a crystallographic twofold axis, adopts a distorted octa-hedral coordination, consisting of O-donor atoms of two symmetry-related triethyl-phospine oxide and two bidentate nitrate ligands.

| S-EPMC2969723 | biostudies-literature

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