scholarly journals Aqua(1,4,7,10-tetraazacyclododecane)zinc(II) bis(perchlorate)

IUCrData ◽  
2021 ◽  
Vol 6 (4) ◽  
Author(s):  
Yoshimi Ichimaru ◽  
Koichi Kato ◽  
Hiromasa Kurosaki ◽  
Haruto Fujioka ◽  
Misa Sakai ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Water Molecule ◽  
Rotation Axis ◽  
Intermolecular Hydrogen Bonding ◽  
Apical Position ◽  
Coordination Environment ◽  
Macrocyclic Ring

The cationic ZnII part of aqua(1,4,7,10-tetraazacyclododecane)zinc(II) bis(perchlorate), [Zn(C8H20N4)(H2O)](ClO4)2, exhibits a slightly distorted square-pyramidal coordination environment with a water molecule in the apical position. In the crystal, the macrocyclic ring alternates between two conformations with equal occupancies. Two of the three perchlorate anions are situated about a twofold rotation axis, and one of them shows disorder of the O atoms with occupancies of 0.62 (7) and 0.38 (7). In the crystal, the complexes are connected by intermolecular hydrogen bonding via the perchlorate anions.

(Acetylacetonato-κ2O,O′)[1-(4-bromophenyl-κC2)-3-methylimidazol-2-ylidene-κC2]platinum(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m203-m205 ◽  
Author(s):  
Mario Tenne ◽  
Yvonne Unger ◽  
Thomas Strassner
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Intermolecular Hydrogen Bonding ◽  
Coordination Environment ◽  
Π Interactions ◽  
New Class ◽  
Square Planar ◽  
Parallel Fashion

The title platinum(II) complex, [Pt(C10H8BrN2)(C5H7O2)], has a bidentate cyclometallated phenylimidazolylidene ligand and an acetylacetonate spectator ligand, which form a distorted square-planar coordination environment around the PtIIcentre. In the solid state, the molecules are oriented in a parallel fashion by intermolecular hydrogen bonding and π–π and C—H...π interactions, while close Pt...Pt contacts are not observed. The structure is only the second example for this new class of compounds.

scholarly journals Crystal structure of a trigonal polymorph of aquadioxidobis(pentane-2,4-dionato-κ2 O,O′)uranium(VI)

2022 ◽  
Vol 78 (1) ◽  
Author(s):  
Alejandro Hernandez ◽  
Indranil Chakraborty ◽  
Gabriela Ortega ◽  
Christopher J. Dares
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Water Molecule ◽  
Equatorial Plane ◽  
Title Compound ◽  
Uranium Atom ◽  
Intermolecular Hydrogen Bonding ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Acta Cryst

The title compound, [UO2(acac)2(H2O)] consists of a uranyl(VI) unit ([O=U=O]2+) coordinated to two monoanionic acetylacetonate (acac, C5H7O2) ligands and one water molecule. The asymmetric unit includes a one-half of a uranium atom, one oxido ion, one-half of a water molecule and one acac ligand. The coordination about the uranium atom is distorted pentagonal–bipyramidal. The acac ligands and Ow atom comprise the equatorial plane, while the uranyl O atoms occupy the axial positions. Intermolecular hydrogen bonding between complexes results in the formation of two-dimensional hexagonal void channels along the c-axis direction with a diameter of 6.7 Å. The monoclinic (P21/c space group) polymorph was reported by Alcock & Flanders [(1987). Acta Cryst. C43, 1480–1483].

scholarly journals Aqua(azido)[N-(pyridin-2-ylcarbonyl)pyridine-2-carboxamido-κ3N,N′,N′′]copper(II)

2013 ◽  
Vol 69 (11) ◽  
pp. m598-m599
Author(s):  
Sandra Bruda ◽  
Mark M. Turnbull ◽  
Jan L. Wikaira
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Water Molecule ◽  
Mean Deviation ◽  
Water Molecules ◽  
Air Oxidation ◽  
Apical Position ◽  
Complex Molecules ◽  
Hydrogen Bonding Interactions ◽  
Planar Array

The title compound, [Cu(C12H8N3O2)(N3)(H2O)], was formed by the air oxidation of 2-(aminomethyl)pyridine in 95% ethanol in the presence of copper(II) nitrate and sodium azide with condensation of the resulting picolinamide molecules to generate the imide moiety. The CuIIion has a square-pyramidal coordination sphere, the basal plane being occupied by four N atoms [two pyridine (py) N atoms, the imide N atom and an azide N atom] in a nearly planar array [mean deviation = 0.048 (6) Å] with the CuIIion displaced slightly from the plane [0.167 (5) Å] toward the fifth ligand. The apical position is occupied by a coordinating water molecule [Cu—O = 2.319 (4) Å]. The crystal structure is stabilized by hydrogen-bonding interactions between the water molecules and carbonyl O atoms. The inversion-related square-pyramidal complex molecules pack base-to-base with long Cu...Npycontact distances of 3.537 (9) Å, preventing coordination of a sixth ligand.

scholarly journals Triaqua-1κO,2κ2 O-bis(2,2′-bipyridine)-1κ2 N,N′;2κ2 N,N′-chlorido-1κCl-μ-terephthalato-1:2κ2 O 1:O 4-dicopper(II) nitrate monohydrate

2012 ◽  
Vol 68 (6) ◽  
pp. m746-m747
Author(s):  
Yang Liu ◽  
Yong-Lan Feng ◽  
Dai-Zhi Kuang
Keyword(s):  
Water Molecule ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Apical Position ◽  
Coordination Environment ◽  
Dimensional Network ◽  
Chloride Ligand ◽  
Hydrogen Bonded

In the binuclear title compound, [Cu2(C8H4O4)Cl(C10H8N2)2(H2O)3]NO3·H2O, the two crystallographically independent CuII ions have similar coordination environments. One of the CuII ions has a square-pyramidal arrangement, which is defined by a water molecule occupying the apical position, with the equatorial ligators consisting of two N atoms from a 2,2′-bipyridine molecule, one carboxylate O atom from a terephthalate ligand and one O atom from a water molecule. The other CuII ion has a similar coordination environment, except that the apical position is occupied by a chloride ligand instead of a water molecule. An O—H...O and O—H...Cl hydrogen-bonded three-dimensional network is formed between the components.

scholarly journals Aquabis(2-amino-1,3-thiazole-4-acetato-κ2O,N3)nickel(II)

2009 ◽  
Vol 65 (6) ◽  
pp. m666-m666 ◽  
Author(s):  
Qiu-Fen He ◽  
Dong-Sheng Li ◽  
Jun Zhao ◽  
Xi-Jun Ke ◽  
Cai Li
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Water Molecule ◽  
Title Compound ◽  
Rotation Axis ◽  
Coordination Geometry ◽  
Π Stacking ◽  
Centroid Distance ◽  
Coordination Plane

In the crystal structure of the title compound, [Ni(C5H5N2O2S)2(H2O)], the NiIIcation is located on a twofold rotation axis and chelated by two 2-amino-1,3-thiazole-4-acetate (ata) anions in the basal coordination plane; a water molecule located on the same twofold rotation axis completes the distorted square-pyramidal coordination geometry. Intermolecular O—H...O and N—H...O hydrogen bonding, as well as π–π stacking between parallel thiazole rings [centroid–centroid distance 3.531 (8) Å], helps to stabilize the crystal structure.

Di-μ2-methanolato-bis[tetrakis(pyrimidin-2-amine-κN 1)cobalt(II)] bis(tetrafluoroborate)

2006 ◽  
Vol 62 (5) ◽  
pp. m1159-m1161 ◽  
Author(s):  
Yang Li ◽  
Xi-Quan Zhang ◽  
Xi-Chang Zhang ◽  
Xiang-Jian Wang ◽  
Rui-Qin Fang
Keyword(s):  
Hydrogen Bonding ◽  
Title Compound ◽  
General Position ◽  
Rotation Axis ◽  
Intermolecular Hydrogen Bonding ◽  
Asymmetric Unit ◽  
Amine Ligand

The title compound, [Co2(CH3O)2(C4H5N3)4](BF4)2, consists of a discrete dimeric CoII complex. The asymmetric unit consists of one pyrimidin-2-amine ligand, which occupies a general position, and one methanolate group, as well as one CoII cation and one tetrafluoroborate anion, which are located in special positions. The CoII cation lies on a twofold rotation axis, whereas the tetrafluoroborate anion and the methanolate group lie on mirror planes. The N atoms of the pyrimidin-2-amine ligand are involved in intermolecular hydrogen bonding. From this arrangement, large channels are formed, which elongate in the direction of the crystallographic c axis.

Aqua(8-hydroxy-7-iodoquinoline-5-sulfonato-κ2 N,O 8)silver(I) dihydrate

2006 ◽  
Vol 62 (5) ◽  
pp. m1036-m1037 ◽  
Author(s):  
Hai-Yan Liu ◽  
Hua Wu ◽  
Jian-Fang Ma
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Water Molecule ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Coordination Geometry ◽  
Intermolecular Hydrogen Bonding ◽  
Three Dimensional Structure ◽  
Sulfonate Anion

In the title compound, [Ag(C9H5INO4S)(H2O)]·2H2O, the AgI cation has a highly distorted trigonal–planar coordination geometry, with N and O donor atoms from a bidentate 8-hydroxy-7-iodoquinoline-5-sulfonate anion ligand and one O atom from a water molecule. In the crystal structure, the molecules are linked together through extensive intermolecular hydrogen bonding, forming a three-dimensional structure.

The heterometallic cadmium–silver complexcis-bis[dicyanidoargentato(I)-κN]bis(5,5′-dimethyl-2,2′-bipyridyl-κ2N,N′)cadmium(II) monohydrate

2013 ◽  
Vol 69 (10) ◽  
pp. 1136-1139 ◽  
Author(s):  
Jureepan Piromchom ◽  
Nanthawat Wannarit ◽  
Chaveng Pakawatchai ◽  
Sujittra Youngme
Keyword(s):  
Hydrogen Bonding ◽  
Water Molecule ◽  
Three Dimensional ◽  
Title Complex ◽  
Supramolecular Network ◽  
Intermolecular Hydrogen Bonding ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Solvent Water ◽  
Bidentate Chelate

In the title complex, [Ag2Cd(CN)4(C12H12N2)2]·H2O orcis-[Cd{Ag(CN)2}2(5,5′-dmbpy)2]·H2O, where 5,5′-dmbpy is 5,5′-dimethyl-2,2′-bipyridyl, the asymmetric unit consists of a discrete neutral [Cd{Ag(CN)2}2(5,5′-dmbpy)2] unit and a solvent water molecule. The CdIIcation is coordinated by two bidentate chelate 5,5′-dmbpy ligands and two monodentate [AgI(CN)2]−anions, which are in acisarrangement around the CdIIcation, leading to an octahedral CdN6geometry. The overall structure is stabilized by a combination of intermolecular hydrogen bonding, and AgI...AgIand π–π interactions, forming a three-dimensional supramolecular network.

catena-Poly[[aqua(4,4′-bipyridine-κ2 N,N′)cobalt(II)]-μ-3-(4-carboxylatophenoxy)propionato-κ3 O:O′,O′′]

2007 ◽  
Vol 63 (11) ◽  
pp. m2852-m2852
Author(s):  
Li-Li Kong ◽  
Shan Gao ◽  
Li-Hua Huo ◽  
Seik Weng Ng
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Water Molecule ◽  
Chain Structure ◽  
Helical Chain ◽  
Orthorhombic Unit Cell ◽  
Coordination Environment ◽  
Covalently Bonded ◽  
Coordinated Water ◽  
Aromatic Carboxylate

In the crystal structure of the polymeric title compound, [Co(C10H8O5)(C10H8N2)(H2O)] n , the CoII atom is O,O′-chelated by the aromatic carboxylate end of the 3-(4-carboxylatophenoxy)propionate dianion, and is covalently bonded (through one O atom) by the aliphatic carboxylate end of another dianion; it is also coordinated by a water molecule to give an octahedral coordination environment. The compound adopts a helical chain structure that propagates along the c axis of the orthorhombic unit cell. The coordinated water molecule engages in both intrachain and interchain hydrogen bonding; the interchain hydrogen bonds result in a honeycomb motif. The crystal structure is an inversion twin and the ratio of the two twin components refined to 0.47 (2):0.53 (2).

scholarly journals Two-dimensional hydrogen-bonded polymers in the crystal structures of the ammonium salts of phenoxyacetic acid, (4-fluorophenoxy)acetic acid and (4-chloro-2-methylphenoxy)acetic acid

2014 ◽  
Vol 70 (12) ◽  
pp. 528-532 ◽  
Author(s):  
Graham Smith
Keyword(s):  
Hydrogen Bonding ◽  
Acetic Acid ◽  
Water Molecule ◽  
Rotation Axis ◽  
Ammonium Salts ◽  
Phenoxyacetic Acid ◽  
Two Dimensional ◽  
The Core ◽  
Ammonium N ◽  
Hydrogen Bonded

The structures of the ammonium salts of phenoxyacetic acid, NH4+·C8H6O3−, (I), (4-fluorophenoxy)acetic acid, NH4+·C8H5FO3−, (II), and the herbicidally active (4-chloro-2-methylphenoxy)acetic acid (MCPA), NH4+·C9H8ClO3−·0.5H2O, (III) have been determined. All have two-dimensional layered structures based on inter-species ammonium N—H...O hydrogen-bonding associations, which give core substructures consisting primarily of conjoined cyclic motifs. The crystals of (I) and (II) are isomorphous with the core comprisingR12(5),R12(4) and centrosymmetricR42(8) ring motifs, giving two-dimensional layers lying parallel to (100). In (III), the water molecule of solvation lies on a crystallographic twofold rotation axis and bridges two carboxyl O atoms in anR44(12) hydrogen-bonded motif, creating twoR43(10) rings, which together with a conjoined centrosymmetricR42(8) ring incorporating both ammonium cations, generate two-dimensional layers lying parallel to (100). No π–π ring associations are present in any of the structures.

Sign in / Sign up

Export Citation Format

Share Document