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[1,3-Bis(2-ethoxy-phen-yl)triazenido]bromidomercury(II).

ABSTRACT: To the central atom of the title compound, [HgBr(C(16)H(18)N(3)O(2))], is attached one bromide ion and a 1,3-bis-(2-ethoxy-phen-yl)triazenide ligand through one O and two N atoms, forming a distorted square-planar geometry around the Hg(II) atom. The mononuclear complexes are linked into centrosymmetric dimers by non-classical inter-molecular C-H?N hydrogen bonds and by weak Hg-?(3)-arene ?-inter-actions [mean distance = 3.434?(3)?Å]. The resulting dimeric units are assembled into zigzag chains by translation along the crystallographic c axis through secondary C-H?? edge-to-face benzene ring inter-actions.

SUBMITTER: Rofouei MK

PROVIDER: S-EPMC2970410 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature

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[1,3-Bis(2-ethoxy-phen-yl)triazenido]bromidomercury(II).

Rofouei Mohammad Kazem MK Beiza Armin A Attar Gharamaleki Jafar J

Acta crystallographica. Section E, Structure reports online 20090930 Pt 10

To the central atom of the title compound, [HgBr(C(16)H(18)N(3)O(2))], is attached one bromide ion and a 1,3-bis-(2-ethoxy-phen-yl)triazenide ligand through one O and two N atoms, forming a distorted square-planar geometry around the Hg(II) atom. The mononuclear complexes are linked into centrosymmetric dimers by non-classical inter-molecular C-H⋯N hydrogen bonds and by weak Hg-η(3)-arene π-inter-actions [mean distance = 3.434 (3) Å]. The resulting dimeric units are assembled into zigzag chains ...[more]

PMID: 21577772

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[1,3-Bis(2-ethoxy-phen-yl)triazenido]chloridomercury(II).

Project description:In the title compound, [Hg(C(16)H(18)N(3)O(2))Cl], the Hg(II) atom is four-coordinated in a tetra-hedral geometry by two N atoms from the 1,3-chelating and one O atom of a 1,3-bis-(2-ethoxy-phen-yl)triazenido ligand and one terminal chloride ion. The dihedral angle between the aromatic rings is 1.72?(14)°. In the crystal C-H?? stacking inter-actions occur.

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trans-Bis[1,3-bis-(2-methoxy-phen-yl)triazenido]dimethano-lcadmium(II).

Project description:In the title compound, [Cd(C(14)H(14)N(3)O(2))(2)(CH(3)OH)(2)], each cadmium(II) center is six-coordinated by an N atom and an O atom of two 1,3-bis-(2-methoxy-phen-yl)triazene ligands and by the O atoms of two methanol mol-ecules. The distorted octa-hedral coordination geometry of the Cd atom has two N and two O atoms in the equatorial plane, and two O atoms in axial positions. The complex is stabilized by intra-molecular O-H?O and O-H?N hydrogen bonds. In the crystal structure the complexes are linked into chains via inter-molecular C-H?? stacking inter-actions. One of the methanol C atoms is disordered with ouccupancies of 0.7:0.3.

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Bis[1,3-bis-(2-cyano-phen-yl)triazenido]mercury(II).

Project description:In the title compound, [Hg(C(14)H(8)N(5))(2)], the central atom is four-coordinated by two bidentate 1,3-bis-(2-cyano-phen-yl)triazenide ligands in a distorted square-planar geometry. The asymmteric unit is composed of one ligand molecule and one Hg(II) ion, which is disordered over two sites, one lying on an inversion center and the other on a general position with site-occupancy factors of 0.2378?(7) and 0.3811?(7), respectively. The monomeric mol-ecules of the complex are linked into pairs through non-classical C-H?N hydrogen bonds. The resulting dimeric units are assembled by translation along the crystallographic c axis into chains linked through secondary ?-? inter-actions [centroid-centroid distances = 3.685?(2) and 3.574?(2)?Å], as well as C-H?? stacking inter-actions, resulting in a two-dimensional architecture.

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1,3-Bis(2-ethoxy-phen-yl)triazene.

Project description:The title compound, C(16)H(19)N(3)O(2), exhibits a trans geometry about the N=N double bond in the triazene unit in the solid state, and individual mol-ecules are close to planar with r.m.s. deviations from planarity of 0.065 Å and 0.242 Å for the two independent molecules in the asymmetric unit. Distinct inter-molecular N-H⋯N hydrogen bonds lead to the formation of dimers with an R(2) (2)(8) graph-set motif. The steric demands of the eth-oxy groups in the ortho position prevent a coplanar arrangement of the two mol-ecules in the dimers and these instead consist of two inter-locked mol-ecules that are related by a non-crystallographic pseudo-twofold rotation axis. Weak C-H⋯π inter-actions between the CH groups and the aromatic phenyl rings also occur.

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1,3-Bis(2-ethoxy-phen-yl)triazene methanol 0.33-solvate.

Project description:There are three independent mol-ecules of 1,3-bis-(2-ethoxy-phen-yl)triazene and a mol-ecule of methanol in the asymmetric unit of the title compound, C(16)H(19)N(3)O(2)·0.33CH(3)OH. Two mol-ecules related by a non-crystallographic pseudo-twofold rotation axis are linked via distinct inter-molecular N-H?N hydrogen bonds, leading to the formation of a dimer with an R(2) (2)(8) graph set. The third mol-ecule is connected to the methanol mol-ecule by O-H?N and N-H?O hydrogen bonds. There are a number of weak C-H?? inter-actions, with H?? distances ranging from 2.74 to 2.89?Å between the C-H groups and the aromatic benzene rings.

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Bis[1-(2-eth-oxy-phen-yl)-3-(4-nitro-phen-yl)triazenido]mercury(II).

Project description:In the title compound, [Hg(C(14)H(13)N(4)O(3))(2)], the central Hg atom (site symmetry 2) is six-coordinated by two tridentate 1-(2-eth-oxy-phen-yl)-3-(4-nitro-phen-yl)triazenide ligands through two N and one O atoms. The mononuclear complex mol-ecules are connected into two parallel chains by inter-molecular C-H⋯O hydrogen-bonding inter-actions. These chains are connected to each other by face-to-edge C-H⋯π inter-actions between the CH of the ethoxy groups and the aromatic rings, resulting in a two-dimensional architecture in the ac plane.

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2,3-Bis(4-ethoxy-phen-yl)quinoxaline.

Project description:The title compound, C(24)H(22)N(2)O(2), was prepared by condensation of 1,2-bis-(4-ethoxy-phen-yl)ethane-1,2-dione and 1,2-diamino-benzene. The asymmetric unit contains one half-mol-ecule, close to a twofold axis. The plane of the quinoxaline ring is twisted with respect to the planes of the two ethoxy-phenyl ring systems, exhibiting dihedral angles of 39.95?(9)°. The crystal packing is dominated by weak C-H?? inter-actions. No classical hydrogen bonds or stacking inter-actions are observed.

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Chlorido[1-(2-eth-oxy-phen-yl)3-(4-nitro-phen-yl)triazenido]mercury(II).

Project description:In the title compound, [Hg(C(14)H(13)N(4)O(3))Cl], the Hg(II) atom is four-coordinated by one O atom and two N atoms from a tridentate 1-(2-eth-oxy-phen-yl)-3-(4-nitro-phen-yl)triazenide ligand and one terminal chloride ion in a distorted square-planar geometry. In the crystal structure, the mononuclear complexes are linked into pairs through C-H?O and C-H?Cl hydrogen bonds as well as ?-? and C-H?? stacking inter-actions. In addition, weak Hg-?(6)-arene ?-inter-actions [mean distance of 3.667?(2)?Å] are present between these dimers. The ?-? stacking inter-actions are between aromatic rings with a centroid-centroid distance of 3.884?(2)?Å. Moreover, edge-to-face inter-actions are present between eth-oxy CH groups and aromatic rings with H?? distances of 2.81?Å.

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2-[4-Chloro-3-(4-ethoxy-benz-yl)phen-yl]-1,3-dithiane.

Project description:In the title compound, C(19)H(21)ClOS(2), the dithiane ring adopts a chair conformation. The dihedral angle between the benzene rings is 87.88?(4)°. In the crystal, inversion dimmers linked by pairs of C-H?O inter-actions occur.

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1,3-Bis(ethoxy-meth-yl)-1H-benzimidazole-2(3H)-thione.

Project description:In the structure of the title compound, C(13)H(18)N(2)O(2)S, mol-ecules are linked together by inter-molecular C-H?S inter-actions into one-dimensional extended chains along the a axis. The crystal packing is further influenced by weak C-H?O inter-actions.

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