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[(Nitrato-?O,O')(nitrito-?O,O')(0.25/1.75)]bis-(1,10-phenanthroline-?N,N')cadmium(II).

ABSTRACT: The reaction of cadmium nitrate and sodium nitrite in the presence of 1,10-phenanthroline yields the mixed nitrate-nitrite title complex, [Cd(NO(2))(1.75)(NO(3))(0.25)(C(12)H(8)N(2))(2)]. The metal ion is bis-chelated by two N-heterocycles as well as by the nitrate/nitrite ions in a distorted dodeca-hedral CdN(4)O(4) coordination environment. One nitrite group is ordered; the other is disordered with respect to a nitrate group (ratio 0.75:0.25) concerning the O atom that is not involved in bonding to the metal ion.

SUBMITTER: Najafi E

PROVIDER: S-EPMC3051692 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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[(Nitrato-κO,O')(nitrito-κO,O')(0.25/1.75)]bis-(1,10-phenanthroline-κN,N')cadmium(II).

Najafi Ezzatollah E Amini Mostafa M MM Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20110122 Pt 2

The reaction of cadmium nitrate and sodium nitrite in the presence of 1,10-phenanthroline yields the mixed nitrate-nitrite title complex, [Cd(NO(2))(1.75)(NO(3))(0.25)(C(12)H(8)N(2))(2)]. The metal ion is bis-chelated by two N-heterocycles as well as by the nitrate/nitrite ions in a distorted dodeca-hedral CdN(4)O(4) coordination environment. One nitrite group is ordered; the other is disordered with respect to a nitrate group (ratio 0.75:0.25) concerning the O atom that is not involved in bondi ...[more]

PMID: 21522904

Similar Datasets

[2,9-Bis(3,5-dimethyl-1H-pyrazol-1-yl-κN)-1,10-phenanthroline-κN,N'](methanol-κO)(nitrito-κO,O')cadmium(II) perchlorate.

Project description:In the title complex, [Cd(NO(2))(C(22)H(20)N(6))(CH(3)OH)]ClO(4), the Cd(II) ion is in a distorted penta-gonal-bipyramidal CdN(4)O(3) coordination geometry. The dihedral angles formed between the mean planes of the pyrazole rings and the phenanthroline ring system are 4.37 (19) and 5.84 (21)°. In the crystal, the anions and cations are connected by inter-molecular O-H⋯O hydrogen bonding, while pairs of weak inter-molecular C-H⋯O hydrogen bonds connect the cations into centrosymmetric dimers. In addition, there is a π-π stacking inter-action involving two symmetry-related benzene rings, with a centroid-centroid distance of 3.437 (3) Å.

| S-EPMC3051935 | biostudies-literature

Tris(nitrato-κO,O')bis-(1,10-phenanthroline-κN,N')holmium(III).

Project description:In the title compound, [Ho(NO(3))(3)(C(12)H(8)N(2))(2)], the ten-coordinate Ho(III) ion is chelated by four N atoms from two phenanthroline (phen) ligands and six O atoms from three bidentate nitrate groups. The environment around the Ho atom can be described as a distorted bicapped square anti-prism. Two phenanthroline ligands form a dihedral angle of 43.72 (13)°. Short inter-molecular distances between the centroids of the six-membered rings [3.6887 (14)-3.8374 (16) Å] indicate the existence of π-π inter-actions, which link the mol-ecules into stacks extended in the [10] direction. The crystal packing is further stabilized by weak inter-molecular C-H⋯O hydrogen bonds.

| S-EPMC2961938 | biostudies-literature

Bis(2,9-dimethyl-1,10-phenanthroline-κN,N')bis-(nitrato-κO,O')lead(II).

Project description:In the title complex, [Pb(NO(3))(2)(C(14)H(12)N(2))(2)], the lead ion is chelated by two 2,9-dimethyl-1,10-phenanthroline (dmphen) ligands and two nitrate anions in a slightly distorted square-anti-prismatic geometry. Intra- and inter-molecular π-π stacking is present in the crystal structure, and the centroid-centroid distances between the benzene and pyridine rings of adjacent dmphen ligands are 3.492 (3) and 3.592 (3) Å, respectively. Inter-molecular C-H⋯O hydrogen bonds and C-H⋯π inter-actions help to stabilize the crystal structure.

| S-EPMC3006962 | biostudies-literature

catena-Poly[[(nitrato-κO)(1,10-phenanthroline-κN,N')manganese(II)]-μ-nitrato-κO:O'].

Project description:In the crystal structure of the title compound, [Mn(NO(3))(2)(C(12)H(8)N(2))](n), the Mn(II) atoms are linked by nitrate ligands to form a chain. Each Mn(II) atom is five-coordinated by two N atoms of a 1,10-phenanthroline ligand and three O atoms of two nitrates within a trigonal-bipyramidal coordination geometry. In the crystal structure, the chains are linked by hydrogen bonds into a polymeric ribbon structure.

| S-EPMC2914918 | biostudies-literature

Bis(3,5-dicarboxy-benzoato-κO,O')(1,10-phenanthroline-κN,N')cadmium(II).

Project description:The mol-ecule of the title compound, [Cd(C(9)H(5)O(6))(2)(C(12)H(8)N(2))], has crystallographic twofold rotation symmetry. The Cd(II) atom, located on the twofold axis, assumes a CdO(4)N(2) distorted octa-hedral coordination geometry. In the crystal structure, the mol-ecules link to each other by O-H⋯O and C-H⋯O hydrogen bonding to form a three-dimensional supra-molecular network.

| S-EPMC2914923 | biostudies-literature

Aqua-(4,5-dihydroxy-benzene-1,3-disulfonato-κO)bis-(1,10-phenanthroline-κN,N')cadmium(II) monohydrate.

Project description:In the title compound, [Cd(C(6)H(4)O(8)S(2))(C(12)H(8)N(2))(2)(H(2)O)]·H(2)O, each Cd(II) ion is coordinated by four N atoms [Cd-N = 2.310 (7)-2.341 (7) Å] from two 1,10-phenanthroline ligands, one O atom [Cd-O = 2.300 (6) Å] from a 4,5-dihydroxy-benzene-1,3-disulfonate ligand and one aqua O atom [Cd-O = 2.288 (7) Å] in a distorted octa-hedral geometry. The crystal packing exhibits inter-molecular O-H⋯O and C-H⋯O hydrogen bonds and π-π inter-actions evidenced by relatively short distances [3.525 (5)-3.937 (6) Å] between the centroids of the six-membered rings of neighbouring mol-ecules.

| S-EPMC2960182 | biostudies-literature

Bis[2-(4-hy-droxy-phen-yl)acetato-κO]bis-(1,10-phenanthroline-κN,N')cadmium penta-hydrate.

Project description:In the title compound, [Cd(C(8)H(7)O(3))(2)(C(12)H(8)N(2))(2)]·5H(2)O, the Cd(II) ion is six-coordinated by two carboxylate O atoms of monodentate 2-(4-hy-droxy-phen-yl)acetate ligands and by four N atoms from two chelating 1,10-phenantroline ligands in a distorted trigonal-prismatic geometry. O-H⋯O hydrogen bonds between water mol-ecules and the complex mol-ecules result in the formation of a three-dimensional network. Four water mol-ecules act as single acceptors and double donors while the fifth water mol-ecule is involved as a single acceptor and single donor in an O-H⋯O inter-action and as a donor in an O-H⋯π inter-action.

| S-EPMC3051641 | biostudies-literature

Bis(μ-2,4-dihy-droxy-benzoato-κO:O')bis-[aqua-(2,4-dihy-droxy-benzoato-κO)(1,10-phenanthroline-κN,N')cadmium(II)].

Project description:In the title centrosymmetric dimeric Cd(II) complex, [Cd(2)(C(7)H(5)O(4))(4)(C(12)H(8)N(2))(2)(H(2)O)(2)], the Cd(II) cation is coord-inated by a bidentate phenanthroline (phen) ligand, three dihy-droxy-benzoate (dhba) anions and one water mol-ecule in a distorted CdN(2)O(4) octa-hedral geometry. Among the dhba anions, two anions bridge two Cd(II) cations to form the dimeric complex with significant different Cd-O bond distances of 2.2215 (19) and 2.406 (2) Å. The centroid-centroid distance of 3.4615 (19) Å between two nearly parallel benzene rings of the dhba and phen ligands coordinating to the same Cd(II) cation indicates the existence of intra-molecular π-π stacking in the complex. Extensive O-H⋯O hydrogen bonding and inter-molecular weak C-H⋯O hydrogen bonding help to stabilize the crystal structure. One hy-droxy group of the monodentate dhba ligand is disordered over two sites with a site-occupancy ratio of 0.9:0.1.

| S-EPMC3006915 | biostudies-literature

(Croconato-κO,O')bis-(1,10-phenanthroline-κN,N')zinc(II).

Project description:In the title compound, [Zn(C(5)O(5))(C(12)H(8)N(2))(2)], the Zn atom is in a slightly distorted octa-hedral environment. The mol-ecule lies across a twofold rotation axis, around which two 1,10-phenanthroline ligands are arranged. There are short contacts between the 1,10-phenanthroline groups and the O atoms of the croconate ligand, which probably stabilize the crystal structure via weak C-H⋯O interactions.

| S-EPMC2960028 | biostudies-literature

μ-2,3,5,6-Tetra-2-pyridylpyrazine-κN,N,N:κN,N,N-bis-[(methanol-κO)(nitrato-κO,O')(nitrato-κO)cadmium(II)].

Project description:The title complex, [Cd(2)(NO(3))(4)(C(24)H(16)N(6))(CH(4)O)(2)], displays a centrosymmetric dinuclear structure, in which the 2,3,5,6-tetra-2-pyridinylpyrazine (tppz) ligand links two Cd ions separated by 7.323 (4) Å. Each Cd(II) center is seven-coordinated by three N-atom donors of tppz in one plane, by two O atoms nearly normal to this plane, and by two O atoms 0.393 (3) and 0.488 (3) Å from that plane. The two Cd(II) ions are above and below the plane of the pyrazine ring of the tppz ligand, oriented with respect to the pyridine rings at dihedral angles of 38.01 (3) and 31.90 (3)°. The dihedral angle between the two pyridine rings is 41.11 (3)°. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules.

| S-EPMC2961967 | biostudies-literature

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