scholarly journals Bis[2-(2-isopropylphenylimino)phenyl]mercury(II)

2006 ◽  
Vol 62 (7) ◽  
pp. m1469-m1470 ◽  
Author(s):  
Kevin R. Flower ◽  
Robin G. Pritchard
Keyword(s):  
Title Compound ◽  
Coordination Geometry ◽  
Square Planar ◽  
Phenyl Mercury

The structure of the centrosymmetric cyclomercurated 2-phenyliminophenyl title compound, [Hg(C16H16N)2], has been determined at 120 (2) K. The coordination geometry at the Hg atom is essentially square planar.

scholarly journals (2,2′-Bipyridine-κ2 N,N′)(pyridine-2,6-dicarboxylato-κ2 N,O)palladium(II) monohydrate

IUCrData ◽  
2019 ◽  
Vol 4 (12) ◽  
Author(s):  
Kwang Ha
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Coordination Geometry ◽  
Intermolecular Hydrogen Bonds ◽  
Complex Molecules ◽  
Solvent Water Molecule ◽  
Solvent Water ◽  
Square Planar ◽  
Bipyridine Ligand

In the title compound, [Pd(C7H3NO4)(C10H8N2)]·H2O, the PdII cation is four-coordinated in a distorted square-planar coordination geometry defined by the two N atoms of the 2,2′-bipyridine ligand, one O atom and one N atom from the pyridine-2,6-dicarboxylate anion. The complex and solvent water molecule are linked by intermolecular hydrogen bonds. In the crystal, the complex molecules are stacked in columns along the a axis.

1-(2-Chlorobenzyl)-2-methylpyridinium bis(maleonitriledithiolato)nickelate(III)

2006 ◽  
Vol 62 (4) ◽  
pp. m936-m938
Author(s):  
Chun-Lin Ni ◽  
Ming-Guo Liu
Keyword(s):  
Title Compound ◽  
Zigzag Chain ◽  
Coordination Geometry ◽  
Ionic Complex ◽  
One Dimensional ◽  
Π Interactions ◽  
Square Planar

The title compound is a new ionic complex, (C13H13ClN)[Ni(C4N2S2)2] or [ClBzPyMe][Ni(mnt)2] [where ClBzPyMe is 1-(2-chlorobenzyl)-2-methylpyridinium and mnt is maleonitriledithiolate]. In the anion the NiIII atom is coordinated by the four S atoms of two mnt2− ligands and exhibits the expected square-planar coordination geometry. In the [ClBzPyMe]+ cation the benzene and pyridine rings are twisted with respect to the C/C/N plane incorporating the methylene C atom that links them. The [Ni(mnt)2]− anions and [ClBzPyMe]+ cations stack into well segregated columns along the a axis, and the NiIII ions form a one-dimensional zigzag chain through weak Ni...S, S...S, and π–π interactions.

Bis(piperidinium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S,S′)nickel(II)

2007 ◽  
Vol 63 (11) ◽  
pp. m2802-m2802 ◽  
Author(s):  
Yong Hou ◽  
Hongrong Zuo ◽  
Qian Huang ◽  
Chunlin Ni
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Compound C ◽  
Square Planar

The title compound, (C5H12N)2[Ni(C4N2S2)2], is a new [Ni(mnt)2]2− salt (mnt2− is 1,2-dicyanoethene-1,2-dithiolate) with piperidinium [(PIH)+] cations. The NiII ion lies on an inversion centre and the asymmetric unit contains a (PIH)+ cation and one half of the [Ni(mnt)2]2− anion. The NiII ion exhibits a square-planar coordination geometry. In the crystal structure, weak C—H...N, C—H...S and C—H...Ni hydrogen bonds are observed between the anions and the cations.

Bis[1-(4-bromobenzyl)-3-methylpyrazinium] bis(1,2-dicyanoethene-1,2-dithiolato-κ3 S,S′)nickelate(II)

2006 ◽  
Vol 62 (4) ◽  
pp. m767-m769
Author(s):  
Chun-Lin Ni ◽  
Ming-Guo Liu
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Ion Pair ◽  
Coordination Geometry ◽  
Π Interactions ◽  
Compound C ◽  
Square Planar

The title compound, (C12H12BrN2)[Ni(C4N2S2)2], is an ion-pair complex, isostructural with the Cl-containing analogue. The anion lies on an inversion centre and the NiII ion is coordinated by four S atoms, giving the expected square-planar coordination geometry. The cation adopts a conformation where the benzene and pyrazine rings are twisted with respect to the plane of the central C—C—N chain which links them. C—H...S and π–π interactions between cations and anions are observed in the crystal structure, and C—H...π interactions mediate the formation of ribbons of cations.

Azido{1-[(2-diethylaminoethylimino)methyl]naphthalato}copper(II)

2006 ◽  
Vol 62 (4) ◽  
pp. m849-m850 ◽  
Author(s):  
Xiao-Yang Qiu
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Title Compound ◽  
Coordination Geometry ◽  
Azide Anion ◽  
Square Planar

The title compound, [Cu(C17H21N2O)(N3)], is a mononuclear copper(II) complex. The central CuII ion is four-coordinated by one O and two N atoms of the Schiff base ligand, and by one N atom of an azide anion, forming a distorted square-planar coordination geometry.

scholarly journals Bis[2-(2-methylphenylimino)phenyl]mercury(II)

2006 ◽  
Vol 62 (7) ◽  
pp. m1467-m1468 ◽  
Author(s):  
Kevin R. Flower ◽  
Robin G. Pritchard
Keyword(s):  
Title Compound ◽  
Square Planar ◽  
Phenyl Mercury

The structure of the cyclomercurated 2-phenyliminophenyl title compound, [Hg(C14H12N)2], shows that the mercury coordination is essentially square planar

scholarly journals Dichlorido[1,1-(diphenylphosphino)hydrazide]palladium(II) dichloromethane monosolvate

IUCrData ◽  
2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Martha Höhne ◽  
Bhaskar R. Aluri ◽  
Anke Spannenberg ◽  
Bernd H. Müller ◽  
Normen Peulecke ◽  
...  
Keyword(s):  
Diffraction Data ◽  
Title Compound ◽  
Complex Molecule ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Acta Cryst ◽  
Square Planar ◽  
Solvent Molecules

In the title compound, [PdCl2(C24H22N2P2)]·CH2Cl2, the palladium(II) atom is surrounded by a chelating P—N—P ligand Ph2P—N(NH2)—PPh2 containing a hydrazine entity and two chlorido ligands in a distorted square-planar coordination geometry. Beside the complex molecule, the asymmetric unit contains a co-crystallized dichloromethane molecule. The contributions of further disordered solvent molecules were removed from the diffraction data using the SQUEEZE [Spek (2015). Acta Cryst. C71, 9–18] procedure.

scholarly journals [μ-1,4-Bis(diphenylphosphanyl)butane-κ2 P:P′]bis{(4-benzyl-2-neopentyl-1,2,4-triazol-3-ylidene)[(1,2,5,6-η)-cycloocta-1,5-diene]iridium(I)} bis(tetrafluoroborate) dichloromethane disolvate

IUCrData ◽  
2017 ◽  
Vol 2 (7) ◽  
Author(s):  
Karam B. Idrees ◽  
Andrei V. Astashkin ◽  
Edward Rajaseelan
Keyword(s):  
Title Compound ◽  
Phosphine Ligand ◽  
Transfer Hydrogenation ◽  
Coordination Geometry ◽  
Inversion Center ◽  
Diphosphine Ligand ◽  
Metal Centers ◽  
Square Planar ◽  
Hydrogenation Reactions

The title compound, [Ir2(C14H19N3)2(C8H12)2(C28H28P2)](BF4)2·2CH2Cl2, has triclinic (P-1) symmetry and the dication lies about an inversion center located at the mid-point of the butane chain of the phosphine ligand. The IrI ion has a distorted square-planar coordination geometry. The N-heterocyclic carbene ligand has an extended S-shaped conformation. The diphosphine ligand acts as a bridge between the two metal centers. This is the first structural report of a complex where the square-planar iridium centers are bridged by a phosphine ligand, and it is of interest with respect to catalysis in transfer hydrogenation reactions. Parts of the triazole and cyclooctadiene ligands and the tetrafluoroborate anion are disordered over two sets of sites.

catena-Poly[[[(pyrazino[2,3-f][1,10]phenanthroline)copper(II)]-μ-4,4′-oxydibenzoato] monohydrate]

2007 ◽  
Vol 63 (11) ◽  
pp. m2823-m2823
Author(s):  
Chun-Bo Liu ◽  
Yang Liu ◽  
Lu Lu ◽  
Jun Sun
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Supramolecular Structure ◽  
Helical Chain ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Π Interactions ◽  
Centroid Distance ◽  
Square Planar ◽  
Phenanthroline Ligands

In the title compound, {[Cu(C14H8O5)(C14H8N4)]·H2O} n , the CuII atom adopts a distorted cis-CuN2O2 square-planar coordination geometry. 4,4′-Oxydibenzoate (L) ligands link the CuII atoms, generating a helical chain. Neighbouring chains are linked through π–π interactions between pyrazino[2,3-f][1,10]phenanthroline ligands with a centroid–centroid distance of ca 3.44 Å, resulting in a two-dimensional supramolecular structure. The structure is completed by O—H...O hydrogen bonds.

[N,N′-(o-Phenylene)dipicolinamide-κ4 N]nickel(II)

2007 ◽  
Vol 63 (11) ◽  
pp. m2684-m2684 ◽  
Author(s):  
Yin-Qiu Liu ◽  
Xi-Rui Zeng
Keyword(s):  
Title Compound ◽  
Mononuclear Complex ◽  
Coordination Geometry ◽  
Square Planar

The title compound, [Ni(C18H12N4O2)], which was synthesized by reaction of N-[2-(picolinamido)phenyl]picolinamide with Ni(NO3)2·6H2O in ethanol, is a mononuclear complex in which the nickel(II) ion is coordinated by four N atoms and displays a distorted square-planar coordination geometry.

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