scholarly journals [μ2-N2,N2′-Bis(3-methoxy-2-oxidobenzylidene)benzene-1,3-dicarbohydrazidato]bis[pyridinecopper(II)]

2013 ◽  
Vol 69 (12) ◽  
pp. m658-m658
Author(s):  
Hai-Bin Tong ◽  
Zi-Jing Xiao
Keyword(s):  
Title Complex ◽  
Coordination Geometry ◽  
Square Planar ◽  
The Mean

In the centrosymmetric dinuclear title complex, [Cu2(C24H18N4O6)(C5H5N)2], the CuIIions is tetracoordinated by two O-atoms and one N-donor of the bridging terephthalohydrazonate ligand and by one pyridine N atom, resulting in a nearly square-planar N2O2coordination geometry with the CuIIion 0.044 (2) Å out of the mean plane (r.m.s. deviation of 0.0675 Å) of the coordinating atoms.

scholarly journals Crystal structure oftrans-dichlorido(4-nitroaniline-κN1)(piperidine-κN)platinum(II)

2015 ◽  
Vol 71 (6) ◽  
pp. 644-646 ◽  
Author(s):  
Chi Nguyen Thi Thanh ◽  
Truong Hoang Van ◽  
Thong Pham Van ◽  
Ngan Nguyen Bich ◽  
Luc Van Meervelt
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Title Complex ◽  
Stacking Interactions ◽  
Coordination Geometry ◽  
Hydrogen Bond Interactions ◽  
Square Planar ◽  
Benzene Rings ◽  
The Mean ◽  
Structure Inversion

In the title complex, [PtCl2(C5H11N)(C6H6N2O2)], the PtIImetal atom displays a slightly distortedtrans-PtN2Cl2square-planar coordination geometry. The dihedral angle between the mean plane of the benzene and piperidine rings is 89.03 (3)°. In the crystal structure, inversion dimers are formedviaN—H...Cl hydrogen-bond interactions, resulting in chains parallel to the [001] direction. The benzene rings within the chains show π–π stacking interactions [centroid-to-centroid distances of 3.801 (3) Å] and neighbouring chains interactviaN—H...O hydrogen bonds.

scholarly journals Crystal structure of bis(azido-κN)bis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole-κ2N2,N3]cobalt(II)

2015 ◽  
Vol 71 (5) ◽  
pp. 452-454 ◽  
Author(s):  
Abdelhakim Laachir ◽  
Fouad Bentiss ◽  
Salaheddine Guesmi ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Title Complex ◽  
Octahedral Coordination ◽  
Maximum Deviation ◽  
Coordination Geometry ◽  
Acta Cryst ◽  
Π Interactions ◽  
The Mean

In the mononuclear title complex, [Co(N3)2(C12H8N4S)2], the cobalt(II) atom is located on an inversion centre and displays an axially weakly compressed octahedral coordination geometry. The equatorial positions are occupied by the N atoms of two 2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole ligands, whereas the axial positions are occupied by N atoms of the azide anions. The thiadiazole and pyridine rings linked to the metal are almost coplanar, with a maximum deviation from the mean plane of 0.0273 (16) Å. The cohesion of the crystal is ensured by weak C—H...N hydrogen bonds and by π–π interactions between pyridine rings [intercentroid distance = 3.6356 (11) Å], forming a layered arrangement parallel to (001). The structure of the title compound is isotypic with that of the analogous nickel(II) complex [Laachiret al.(2013).Acta Cryst.E69, m351–m352].

scholarly journals [2-Formyl-4-methyl-6-({2-[2-(4-nitrobenzylamino)ethylamino]ethylimino}methyl)phenolato]nickel(II) perchlorate

2012 ◽  
Vol 68 (6) ◽  
pp. m766-m766 ◽  
Author(s):  
Yang Wang ◽  
Jia-Wei Mao ◽  
Hui-Ting Song ◽  
Hong Zhou
Keyword(s):  
Hydrogen Bonding ◽  
Dihedral Angle ◽  
Title Complex ◽  
Coordination Geometry ◽  
Aromatic Rings ◽  
Square Planar

In the unsymmetrical title complex, [Ni(C20H23N4O4)]ClO4, the coordination geometry for the NiII atom can be described as square planar. The aromatic rings in the two ligands are almost vertical, with a dihedral angle of 85.3°. In the crystal, cations and anions are linked by weak C(N)—H...O hydrogen bonding.

scholarly journals Crystal structure and Hirshfeld surface analysis of 2,2′-{(1E,1′E)-[ethane-1,2-diylbis(azanylylidene)]bis(methanylylidene)}bis[4-(trifluoromethoxy)phenol]copper(II) hydroquinone hemisolvate

2019 ◽  
Vol 75 (11) ◽  
pp. 1729-1733
Author(s):  
Sevgi Kansiz ◽  
Seher Meral ◽  
Necmi Dege ◽  
Aysen Alaman Agar ◽  
Igor O. Fritsky
Keyword(s):  
Surface Analysis ◽  
Crystal Packing ◽  
Three Dimensional ◽  
Hirshfeld Surface ◽  
Title Complex ◽  
Hirshfeld Surface Analysis ◽  
Dimensional Structure ◽  
Coordination Geometry ◽  
Open Chain ◽  
Square Planar

In the title complex, [Cu(C18H12F6N2O4)]·0.5C6H6O2, the CuII ion has a square-planar coordination geometry, being ligated by two N and two O atoms of the tetradentate open-chain Schiff base ligand 6,6′-{(1E,1′E)-[ethane-1,2-diylbis(azanylylidene)]bis(methanylylidene)}bis[2-(trifluoromethoxy)phenol]. The crystal packing is stabilized by intramolecular O—H...O and intermolecular C—H...F, C—H...O and C—H...π hydrogen bonds. In addition, weak π–π interactions form a three-dimensional structure. Hirshfeld surface analysis and two-dimensional fingerprint plots were performed and created to analyze the intermolecular interactions present in the crystal, indicating that the most important contributions for the crystal packing are from F...H/H...F (25.7%), H...H (23.5%) and C...H/H...C (12.6%) interactions.

scholarly journals Bis(4-dimethylamino-1-ethylpyridinium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2S,S′)nickelate(II)

2012 ◽  
Vol 68 (4) ◽  
pp. m395-m395 ◽  
Author(s):  
Shan-Shan Yu ◽  
Hong Zhou ◽  
Xiao-Ming Ren
Keyword(s):  
Title Complex ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Square Planar

The asymmetric unit of the title complex, (C9H15N2)2[Ni(C4N2S2)2], comprises one 4-dimethylamino-1-ethylpyridinium cation and one half of a [Ni(mnt)2]2−(mnt2−= maleonitriledithiolate) anion; the complete anion is generated by the application of a centre of inversion. The NiIIion is coordinated by four S atoms of two mnt2−ligands and exhibits a square-planar coordination geometry.

scholarly journals Bis[S-hexyl (E)-3-(4-methoxybenzylidene)dithiocarbazato-κ2N3,S]palladium(II)

IUCrData ◽  
2016 ◽  
Vol 1 (4) ◽  
Author(s):  
E. Zangrando ◽  
M. S. Begum ◽  
M. B. H. Howlader ◽  
M. C. Sheikh ◽  
R. Miyatake
Keyword(s):  
Schiff Base ◽  
Chelate Ring ◽  
Title Complex ◽  
Planar Geometry ◽  
Inversion Center ◽  
Schiff Base Ligands ◽  
Complex Molecules ◽  
Planar Configuration ◽  
Square Planar ◽  
The Mean

In the title complex, [Pd(C15H21N2OS2)2], the PdIIion is located on a crystallographic inversion center. The two Schiff base ligands in a deprotonated imino thiolate form chelate the metal atomviathe azomithine N and thiolate S atoms in atrans-square-planar configuration as imposed by the crystal symmetry. The complex has an approximately planar geometry with the exception of the hexyl chains; the mean plane of the five-membered chelate ring makes a dihedral angle of 15.43 (5)° with the benzene ring. In the crystal, the complex molecules are stacked along theaaxis.

scholarly journals Crystal structure of [2-({2-[(2-azanidylbenzylidene)amino]benzylidene}amino)-4-chlorophenolato]nickel(II)

2017 ◽  
Vol 73 (4) ◽  
pp. 637-639 ◽  
Author(s):  
Fumiya Kobayashi ◽  
Atsushi Koga ◽  
Ryo Ohtani ◽  
Shinya Hayami ◽  
Masaaki Nakamura
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Title Complex ◽  
Coordination Geometry ◽  
Π Interactions ◽  
Bond Forming ◽  
Tetradentate Schiff Base ◽  
Centroid Distance ◽  
Square Planar ◽  
A Chain

The title complex, [Ni(C20H14ClN3O)], with an asymmetrically chloride-appended Schiff base ligand has been synthesized and structurally characterized at 100 K. In the compound, the central nickel(II) ion has a square-planar coordination geometry with N3O donors of the π-conjugated tetradentate Schiff base ligand. In the crystal, the complexes are connected into an inversion dimerviaan Ni...Ni interaction [3.1753 (5) Å] and a pair of π–π interactions [centroid–centroid distance = 3.8416 (16) Å]. The dimers are linkedviaa C—H...Cl hydrogen bond, forming a chain along thec-axis direction. The dimer chains interact with each other through π–π interactions [centroid–centroid distance = 3.8736 (16) Å], forming a layer expanding parallel to theacplane.

scholarly journals Crystal structure of bis[S-hexyl 3-(4-methylbenzylidene)dithiocarbazato-κ2N3,S]palladium(II)

2015 ◽  
Vol 71 (3) ◽  
pp. m63-m64 ◽  
Author(s):  
M. Sabina Begum ◽  
M. Belayet Hossain Howlader ◽  
M. Chanmiya Sheikh ◽  
Ryuta Miyatake ◽  
Ennio Zangrando
Keyword(s):  
Crystal Structure ◽  
Intermolecular Interactions ◽  
Rotational Symmetry ◽  
Title Complex ◽  
Coordination Geometry ◽  
Chelating Ligands ◽  
Axis Direction ◽  
Twofold Axis ◽  
Square Planar

The whole molecule of the title complex, [Pd(C15H21N2S2)2], is generated by twofold rotational symmetry. The palladium(II) atom exhibits a square-planar coordination geometry, and is located on the crystallographic twofold axis that induces acisconfiguration of theN,Schelating ligands. In the crystal, molecules stack along thec-axis direction and there are no significant intermolecular interactions present. The structure was refined as an inversion twin with a final BASF parameter of 0.34 (2).

scholarly journals Bis(pyridine-2-carboxylato-κ2 N,O)copper(II)]–benzene-1,3,5-tricarboxylic acid–water (1/2/2)

IUCrData ◽  
2021 ◽  
Vol 6 (7) ◽  
Author(s):  
Wenkai Zhang ◽  
Bingguang Zhang ◽  
Qiaozhen Sun
Keyword(s):  
Carboxylic Acid ◽  
Hydrogen Bonds ◽  
Weak Interactions ◽  
Tricarboxylic Acid ◽  
Title Complex ◽  
Acid Water ◽  
Coordination Geometry ◽  
Trimesic Acid ◽  
Pyridine Nitrogen ◽  
Square Planar

In the title complex, [Cu(C6H4O2N)2]·2C9H6O6·2H2O, the Cu2+ ion lies on a center of inversion and coordinates with symmetry related pyridine nitrogen and carboxyl oxygen atoms from two pyridine-2-carboxylic acid anions, giving rise to a square-planar coordination geometry. There are weak axial bonds between Cu and an O atom of a symmetry-related trimesic acid moieties [Cu...O = 2.837 (2) Å] The Cu...O weak interactions and hydrogen bonds stabilize the whole structure.

scholarly journals Bis[S-hexyl 3-(thiophen-2-ylmethylidene)dithiocarbazato-κ2N3,S]palladium(II)

IUCrData ◽  
2016 ◽  
Vol 1 (7) ◽  
Author(s):  
K. Begum ◽  
M. C. Sheikh ◽  
R. Miyatake ◽  
E. Zangrando ◽  
M. S. Begum
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Complex ◽  
Coordination Geometry ◽  
Chelating Ligands ◽  
Hydrogen Bond Interactions ◽  
Square Planar

In the title complex, [Pd(C12H17N2S3)2], the PdIIatom exhibits a square-planar coordination geometry with theN,S-chelating ligands arranged in atransconfiguration. Intramolecular C—H...S hydrogen bonds are observed. In the crystal, molecules are linked by weak C—H...N hydrogen-bond interactions, forming chains parallel to thebaxis.

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