scholarly journals Crystal structure of bis[2-(benzothiazol-2-yl)phenolato-κ2N,O]copper(II)

2015 ◽  
Vol 71 (9) ◽  
pp. m173-m174 ◽  
Author(s):  
Namhun Kim ◽  
Sung Kwon Kang

In the title complex, [Cu(C13H8NOS)2], the CuIIatom is coordinated by two N atoms and two O atoms from two bidentate benzothiazolphenolate ligands, forming a distorted tetrahedral geometry [dihedral angle between two N—Cu—O planes: 45.1 (2)°]. The dihedral angles between the benzothiazole ring systems and the phenol rings are 4.1 (4) and 5.8 (4)°, indicating an almost planar geometry. Weak intra- and intermolecular C—H...O hydrogen bonds are observed. In the crystal, weak π–π interactions between aromatic and thiazole rings [centroid–centroid distances = 3.626 (3) and 3.873 (3) Å] link the molecules into a two-dimensional supramolecular network along thebcplane.

Author(s):  
Suk-Hee Moon ◽  
Ki-Min Park ◽  
Youngjin Kang

In the title compound, {[Ag(C29H25N3)2]NO3·CH3OH·H2O}n, the AgIcation is four-coordinated by two pyridine N atoms and two imidazole N atoms from four individual 4-(1-(5′-isopropyl-[1,1′:3′,1′′-terphenyl]-2′-yl)-1H-imidazol-2-yl)pyridine (i-pro-pyim) ligands. This gives rise to a highly distorted tetrahedral geometry with bond angles falling in the range 100.33 (19)–122.76 (19)°. Two crystallographically independenti-pro-pyim ligands (AandB) adopt very similar conformations to one another, such that the dihedral angles between the pyridyl and imidazolyl rings in the two ligands are 40.7 (3) and 42.2 (3)°, respectively. Eachi-pro-pyim ligand binds two symmetry-related Ag+cations, leading to the formation of 14-membered cyclic dimers, in which the AgIatoms are separated by 6.963 (2) Å for the Ag–A2–Ag dimer and 7.020 (2) Å for Ag–B2–Ag. These cyclic dimers are alternately connected to each other by sharing AgIatoms, resulting in the formation of a looped-chain structure extending along the [100] direction. Moreover, adjacent looped chains are connected by intermolecular π–π interactions [centroid-to-centroid distance = 3.689 (4) Å], giving rise to the formation of a two-dimensional supramolecular network propagating parallel to (110). Several intermolecular C—H...O and O—H...O hydrogen bonds further contribute to the stabilization of the crystal structure.


2012 ◽  
Vol 68 (6) ◽  
pp. m826-m826
Author(s):  
Hong Chen ◽  
Heng Xu

In the two-dimensional title coordination polymer, [Zn(C8H4O4)(C14H14N4)] n , the ZnII atom adopts a distorted tetrahedral geometry, being ligated by two O atoms from two different benzene-1,3-dicarboxylate dianions and two N atoms from two symmetry-related 1,2-bis(imidazol-1-ylmethyl)benzene molecules. The dihedral angles between the imidazole rings and the benzene ring in the neutral ligand are 76.31 (13) and 85.33 (15)°. The ZnII atoms are bridged by dicarboxylate ligands, forming chains parallel to the a axis, which are further linked by 1,2-bis(imidazol-1-ylmethyl)benzene molecules, generating a two-dimensional layer structure parallel to the ac plane. The crystal structure is enforced by intralayer and interlayer C—H...O hydrogen bonds.


2014 ◽  
Vol 70 (11) ◽  
pp. o1202-o1203
Author(s):  
R. Vasanthi ◽  
D. Reuben Jonathan ◽  
K. S. Elizhlarasi ◽  
B. K. Revathi ◽  
G. Usha

In the title compound, C17H16O4, the dihedral angle between the benzene rings is 21.22 (1)° and the mean plane of the prop-2-en-1-one group makes dihedral angles of 10.60 (1) and 11.28 (1)°, respectively, with those of the hydroxyphenyl and ethoxyphenyl rings. The ethoxy substituent forms a dihedral angle of 88.79 (2)° with the the prop-2-en-1-one group, which is found to be slightly twisted. In the crystal, phenolic O—H...O hydrogen bonds to the carbonyl O atom form a two-dimensional supramolecular network structure lying parallel to (010).


IUCrData ◽  
2017 ◽  
Vol 2 (6) ◽  
Author(s):  
C.Vidya Rani ◽  
L. Mitu ◽  
G. Chakkaravarthi ◽  
G. Rajagopal

In the title complex, [Co(C25H35N2O)2], the cobalt(II) atom has a distorted tetrahedral geometry provided by pairs of O and N atoms. The dihedral angles between the benzene rings of the same ligand are 52.39 (9) and 34.96 (9)°. The molecular structure is stabilized by weak intramolecular C—H...O hydrogen bonds. The crystal packing is stabilized mainly by van der Waals forces. The structure contains a solvent-accessible void of 276 Å3which was treated using the SQUEEZE routine fromPLATON[Spek (2015).Acta Cryst.C71, 9–18]. The methyl C atoms of thetert-butyl groups are rotationally disordered, with site occupancies of 0.802 (3) and 0.548 (9) for the major components and 0.198 (3) and 0.452 (9) for the minor components.


2012 ◽  
Vol 68 (4) ◽  
pp. m520-m520
Author(s):  
Chen-Guang Sun ◽  
Ji-Rong Song

In the title complex, [Zn(C10H8N5)Cl]n, the ZnIIion is four-coordinated by one Cl atom and three N atoms from twoin situ-generated deprotonated 5-(1-methyl-1H-benzimidazol-2-yl-κN3)-1,2,3-triazol-1-ide ligands in a slightly distorted tetrahedral geometry. The ZnIIions are bridged by the ligands, forming a helical chain along [001]. C—H...N and C—H...Cl hydrogen bonds and π–π interactions between the imidazole rings [centroid–centroid distance = 3.4244 (10) Å] assemble the chains into a three-dimensional supramolecular network.


2014 ◽  
Vol 70 (11) ◽  
pp. m363-m364 ◽  
Author(s):  
Yan Fan ◽  
Zhi-Rong Qu

The asymmetric unit of the title CoIIcomplex, [Co(C13H8BrN2O)2], contains two independent molecules (AandB). In both molecules, the CoIIcation isN,O-chelated by two 2-(1H-benzimidazol-2-yl)-4-bromophenolate anions in a distorted tetrahedral geometry. In moleculeA, both chelating rings display an envelope conformation, with the flap Co atom lying 0.614 (6) and 0.483 (6) Å from the mean planes of the remaining atoms. In moleculeB, both chelating rings are approximately planar, the maximum deviations being 0.039 (4) and 0.076 (3) Å. In the crystal, molecules are linked by classical N—H...O hydrogen bonds and weak C—H...O and C—H...Br hydrogen bonds into a three-dimensional supramolecular network. Extensive π–π stacking is observed between nearly parallel aromatic rings of adjacent molecules with centroid–centroid distances in the range 3.407 (3)–3.850 (4) Å.


2015 ◽  
Vol 71 (10) ◽  
pp. o758-o758
Author(s):  
Abirami Kandhaswamy ◽  
K.S. Meena ◽  
S. Deepa ◽  
S. Murugavel

In the title molecular salt, C14H22NO+·Cl−, the pyrrolidinium ring adopts a twisted conformation about one of the N—C bonds. It is oriented at a dihedral angle of 42.0 (1)° with respect to the benzene ring. The torsion angle for the central N—C—C—Car(ar = aromatic) linkage is 163.74 (15)°. In the crystal, the components are linkedviaN—H...Cl and O—H...Cl hydrogen bonds, forming zigzig chains along theb-axis direction. These chains are connected along thecaxis by very weak C—H...π interactions, forming a two-dimensional supramolecular network.


2014 ◽  
Vol 70 (2) ◽  
pp. m30-m31
Author(s):  
Ruthairat Nimthong ◽  
Nattakunya Thepsena ◽  
Walailak Puetpaiboon ◽  
Yupa Wattanakanjana

The dinuclear title compound, [Ag2(C14H22N4O2)(C18H15P)2(H2O)2](NO3)2, lies across an inversion center and consists of two [Ag(H2O)(PPh3)] units bridged by a bis(cyclohexanone)oxalydihydrazone ligand. The charge-balance is supplied by two nitrate anions. The symmetry-unique AgIion is in a distorted tetrahedral geometry coordinated by a P atom from a triphenylphosphane ligand, an O atom from a water molecule and a bis(cyclohexanone)oxalydihydrazone ligand bidentate chelating through the O atom and one of N atoms. In the crystal, O—H...O and N—H...O hydrogen bonds link the components, forming chains along theb-axis direction. These chains are connected through weak C—H...O hydrogen bonds, leading to the formation of a two-dimensional supramolecular network parallel to (001).


2007 ◽  
Vol 63 (11) ◽  
pp. m2641-m2641 ◽  
Author(s):  
Jun-Lin Bai ◽  
Hong Zhou ◽  
Zhi-Quan Pan ◽  
Xiang-Gao Meng

The title complex, [Cu2(C20H16F2N4O2)(CH4O)2](ClO4)2, was synthesized by cyclo-condensation between ethylenediamine and 2,6-diformyl-4-fluorophenol in the presence of CuII ions. This dinuclear copper complex is centrosymmetric. Both Cu atoms are in a distorted tetrahedral geometry, coordinated by three O atoms and two N atoms. The two Cu atoms are bridged by two endogenous phenol O atoms, with a Cu...Cu distance of 2.8998 (7) Å. In the crystal structure, the perchlorate ions link the macrocycles through inter- and intramolecular hydrogen bonds.


2015 ◽  
Vol 71 (11) ◽  
pp. m187-m188 ◽  
Author(s):  
Yupa Wattanakanjana ◽  
Arunpatcha Nimthong-Roldán ◽  
Suthida Palavat ◽  
Walailak Puetpaiboon

The title complex, [Ag3I2(C25H22P2)3]I·C7H8N2S, comprises a trinuclear [Ag3I2(C25H22P2)3]+unit, an I−anion and oneN,N′-phenylthiourea molecule (ptu). Two μ3-bridging I−anions are linked by three AgIions, leading to the formation of a dicapped triangular motif with Ag...Ag separations in the range 3.0823 (5)–3.2999 (5) Å. Each AgIatom exhibits a distorted tetrahedral geometry, with coordination to two I atoms and two P atoms from bis(diphenylphosphanyl)methane ligands. In the crystal, the I−anion is linked to the ptu molecule through two N—H...I hydrogen bonds [graph-set motifR21(6)]. These N—H...I hydrogen bonds, in addition to weak C—H...S and C—H...I hydrogen bonds, form zigzag chains along [010]. Two of the phenyl rings of two dppm ligands are disordered over two sets of sites with refined occupancies of 0.557 (16) and 0.443 (16).


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