Dichloro[tris(3-methyl-5-phenylpyrazol-1-yl)methane]copper(II) acetonitrile hemisolvate

2007 ◽  
Vol 63 (3) ◽  
pp. m685-m686
Author(s):  
Hong-Shan He ◽  
Seik Weng Ng

In the title complex, [CuCl2(C31H28N6)]·0.5C2H3N, the Cu2+ atom is coordinated in a distorted square-pyramidal geometry by three N atoms from the pyrazolyl groups of the tripodal ligand, and by two chloride anions.

2012 ◽  
Vol 68 (8) ◽  
pp. m1101-m1102
Author(s):  
Xiao-Hua Chen ◽  
Qiong-Jie Wu ◽  
Li-Juan Chen ◽  
Ming-Xing Yang

In the title complex, [V(C15H12N2O4)(C2H5O)O], the VVion is coordinated by an oxide O atom, an ethanolate anion and two O atoms and one N atom from the tridentate benzohydrazidate dianion in a distorted square-pyramidal geometry; the V atom is displaced by 0.4748 (8) Å from the basal plane towards the axial oxide O atom. An intramolecular O—H...N hydrogen bond occurs in the benzohydrazidate ligand. Weak intermolecular C—H...O hydrogen bonding is present in the crystal.


2007 ◽  
Vol 63 (11) ◽  
pp. m2810-m2811 ◽  
Author(s):  
Young-Inn Kim ◽  
You-Soon Lee ◽  
Hoe-Joo Seo ◽  
Jin-Young Lee ◽  
Sung Kwon Kang

The Zn atom in the title complex, [ZnCl2(C12H13N3)]·CHCl3, adopts a distorted square-pyramidal geometry, being coordinated by three N atoms of the tridentate dipicolylamine ligand and two Cl atoms. Intermolecular N—H...Cl hydrogen-bonding interactions link the molecules into centrosymmetric dimers.


2013 ◽  
Vol 69 (12) ◽  
pp. m683-m683 ◽  
Author(s):  
Juan Chen

The title complex, [Li4(C17H14N4)2(C4H8O)4], bears a novel tetradentate diamido ligand. In the tetranuclear centrosymmetric complex molecule, the metal atoms exhibit two kinds of coordination modes. The middle two Li+cations are coordinated by four N (ligand) and one O (tetrahydrofuran, THF) atoms, resulting in a distorted square-pyramidal geometry. The outer two Li+cations are in distorted tetrahedral environments consisting of three N (ligand) and one O (THF) atoms. The Li—N bond lengths vary from 2.020 (7) to 2.441 (6)Å.


2006 ◽  
Vol 62 (4) ◽  
pp. m843-m845
Author(s):  
Juan-Lan Huang ◽  
Yun-Long Feng

In the molecular structure of the title complex, [Cu(C10H9O2)Cl(C5H14N2)], the CuII atom is in a distorted square-pyramidal geometry, coordinated by two O atoms of a benzoylacetonate ligand and two N atoms of a 3-(dimethylamino)propylamine ligand in the basal plane, while a Cl atom occupies the apical position.


Author(s):  
Benjamin Hawks ◽  
Jingjing Yan ◽  
Prem Basa ◽  
Shawn Burdette

The title complex, [Cu(C9H6NO)2(C5H4N)]·H2O, adopts a slightly distorted square-pyramidal geometry in which the axial pyridine ligand exhibits a long Cu—N bond of 2.305 (3) Å. The pyridine ligand forms dihedral angles of 79.5 (5) and 88.0 (1)° with the planes of the two quinolin-2-olate ligands, while the dihedral angle between the quinoline groups of 9.0 (3)° indicates near planarity. The water molecule connects adjacent copper complexes through O—H...O hydrogen bonds to phenolate O atoms, forming a network interconnecting all the complexes in the crystal lattice.


2012 ◽  
Vol 68 (6) ◽  
pp. m792-m792 ◽  
Author(s):  
Jian Zuo ◽  
Caifeng Bi ◽  
Yuhua Fan ◽  
Nan Zhang ◽  
Pengfei Zhang

In the title complex, [Cu(C16H15NO3)(C10H8N2)]·3H2O, the CuII atom is five coordinated by O,N,O′-donor atoms of the Schiff base ligand and by two N atoms of the 2,2′-bipyridine ligand in a distorted square-pyramidal geometry. In the crystal, molecules are linked into a two-dimensional network parallel to (011) by O—H...O hydrogen bonds.


2020 ◽  
Vol 76 (9) ◽  
pp. 1539-1542
Author(s):  
Natsuki Katsuumi ◽  
Yuika Onami ◽  
Sayantan Pradhan ◽  
Tomoyuki Haraguchi ◽  
Takashiro Akitsu

In the title complex molecule, [Cu(C11H11NO4)(CH4O)(H2O)], the Cu atom is coordinated in a distorted square-pyramidal geometry by a tridentate ligand synthesized from L-threonine and salicylaldehyde, one methanol molecule and one water molecule. In the crystal, the molecules show intra- and intermolecular O—H...O hydrogen bonds. The Hirshfeld surface analysis indicates that the most important contributions to the packing are H...H (49.4%) and H...O/O...H (31.3%) contacts.


Author(s):  
Diego da Silva Padilha ◽  
Marciela Scarpellini

In the crystal structure of the title complex, [CuCl(C17H24N8)]ClO4, the copper(II) metal exhibits an N4Cl pentacoordinate environment in a distorted square-pyramidal geometry. Coordination to the metal centre occurs through the three 1-methylimidazole N atoms from the pendant groups, one amine N atom from the imidazolidine moiety and one chlorido anion. Intermolecular interactions take place at two of the 1-methyl-imidazole rings in the form of parallel-displaced π–π stacking interactions forming chains parallel to the a axis. Three O atoms of the perchlorate anion are rotationally disordered between two orientations with occupancies of 0.5.


2006 ◽  
Vol 62 (7) ◽  
pp. m1713-m1715
Author(s):  
Tong-Tao Xu ◽  
Xing-You Xu ◽  
Da-Qi Wang ◽  
Jian Gao ◽  
Lu-De Lu

The asymmetric unit of the title complex, [Ni(C11H29N5)](ClO4)2, consists of an [Ni(C11H29N5)]2+ cation and two uncoordinated perchlorate anions. The NiII atom is five-coordinated in a slightly distorted square-pyramidal geometry, with four of the N atoms forming the basal plane and the fifth N atom in the apical position. The complex shows a three-dimensional network structure assembled by intermolecular hydrogen bonds.


Author(s):  
Katherine A. Bussey ◽  
Jennifer R. Connell ◽  
Annie R. McGlone ◽  
Margaret E. Mraz ◽  
Kayode D. Oshin ◽  
...  

The five-coordinate CuIIatom in the title complex [CuCl2(C16H19N3)]·0.5C4H10O, adopts a near-ideal square-pyramidal geometry (τ-5 = 0.01). The apical Cu—Cl distance is 0.2626 (6) Å longer than the basal Cu—Cl distance. Weak C—H...Cl interactions between pyridine rings and the Cl atoms of adjacent complex molecules are present. The solvent molecule, located on a twofold rotation axis, is situated in the voids of this arrangement. Copper atoms coordinated by tridentate nitrogen-containing ligands have been found to be excellent promoters of Atom Transfer Radical Addition (ATRA) reactions.


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