scholarly journals Caesium bis(5-bromosalicylaldehyde thiosemicarbazonato-κ3O,N,S)ferrate(III): supramolecular arrangement of low-spin FeIIIcomplex anions mediated by Cs+cations

2015 ◽  
Vol 71 (3) ◽  
pp. 169-174
Author(s):  
Robyn Elizabeth Powell ◽  
Carl H. Schwalbe ◽  
Graham J. Tizzard ◽  
Petra J. van Koningsbruggen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Spin State ◽  
Structure Determination ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Crystal Structure Determination ◽  
Distorted Octahedral Geometry ◽  
Synthesis And Crystal Structure ◽  
Distorted Octahedral

The synthesis and crystal structure determination (at 293 K) of the title complex, Cs[Fe(C8H6BrN3OS)2], are reported. The compound is composed of two dianionicO,N,S-tridentate 5-bromosalicylaldehyde thiosemicarbazonate(2−) ligands coordinated to an FeIIIcation, displaying a distorted octahedral geometry. The ligands are orientated in two perpendicular planes, with the O- and S-donor atoms incispositions and the N-donor atoms intranspositions. The complex displays intermolecular N—H...O and N—H...Br hydrogen bonds, creatingR44(18) rings, which link the FeIIIunits in theaandbdirections. The FeIIIcation is in the low-spin state at 293 K.

scholarly journals [(Pyridine-2,6-dicarboxylato)copper(II)]-μ-(pyridine-2,6-dicarboxylato)-[bis(ethylenediamine)copper(II)]-μ-(pyridine-2,6-dicarboxylato)-[(pyridine-2,6-dicarboxylato)copper(II)] ethylenediamine monosolvate tetrahydrate

2012 ◽  
Vol 68 (6) ◽  
pp. m830-m831 ◽  
Author(s):  
Amir Shokooh Saljooghi ◽  
Hadi Amiri Rudbari ◽  
Francesco Nicolò ◽  
Maliheh Zahmati ◽  
Fatemeh Delavar Mendi
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Acetate Dihydrate ◽  
Carboxylate Groups ◽  
Distorted Octahedral

The title compound, [Cu3(C7H3NO4)4(C2H8N2)2]·C2H8N2·4H2O, was obtained by the reaction of copper(II) acetate dihydrate with pyridine-2,6-dicarboxylic acid (H2dipic) and ethylenediamine (en) in an aqueous solution. All of the CuII atoms in the trinuclear centrosymmetric title complex are six-coordinated in a distorted octahedral geometry with N2O4 and N4O2 environments for the outer and central CuII atoms, respectively. Various interactions, including numerous O—H...O and C—H...O hydrogen bonds and C—O...π stacking of the pyridine and carboxylate groups [O...centroid distances = 3.669 (2) and 3.668 (2) Å] are observed in the crystal structure.

scholarly journals (OC-6-13)-Difluoridooxidobis(propan-2-ol)(propan-2-olato)vanadium(V)

2013 ◽  
Vol 69 (12) ◽  
pp. 1482-1484 ◽  
Author(s):  
Julia Kohl ◽  
Dennis Wiedemann
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Hydrogen Fluoride ◽  
Structure Determination ◽  
Ligand Exchange ◽  
Title Complex ◽  
Crystal Structure Determination ◽  
Asymmetric Unit ◽  
Distorted Octahedral

The distorted octahedral title complex, [VV(C3H7O)(C3H8O)2F2O], was synthesizedvialigand exchange at [VVO(OiPr)3] with aqueous hydrogen fluoride in propan-2-ol and crystallized from (D)chloroform at 238 K after a few weeks. Crystal structure determination shows twoC1-symmetric moieties to be present in the asymmetric unit, forming infinite chains along [100]viahydrogen bonds. The compound provides the first crystal structure containing the [VF2O(OiPr)] motif.

Triaquachloridobis[4-(dimethylamino)benzaldehyde-κO]nickel(II) chloride

2007 ◽  
Vol 63 (11) ◽  
pp. m2819-m2819 ◽  
Author(s):  
Qiang Wang ◽  
Da-Qi Wang ◽  
Yu-Ying Sun
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Two Dimensional ◽  
Distorted Octahedral ◽  
The Mean ◽  
Cl Atom

In the title complex, [NiCl(C9H11NO)2(H2O)3]Cl, the NiII ion is six-coordinated by one Cl atom [Ni—Cl = 2.3712 (11) Å], two O atoms from two 4-(dimethylamino)benzaldehyde (L) ligands and three water molecules in a distorted octahedral geometry [Ni—O = 2.076 (3)–2.094 (3) Å]. The mean planes of the two L ligands make a dihedral angle of 65.8 (1)°. In the crystal structure, intermolecular O—H...Cl hydrogen bonds link cations and anions into two-dimensional sheets parallel to the ab plane, with the L ligands protruding above and below.

Bis[1,3-bis(1H-benzimidazol-2-yl)benzene-κN 3]bis(nitrato-κ2 O,O′)cadmium(II) dihydrate

2007 ◽  
Vol 63 (11) ◽  
pp. m2752-m2752 ◽  
Author(s):  
Fa-Yan Meng ◽  
Yi-Ming Zhang ◽  
Seik Weng Ng
Keyword(s):  
Crystal Structure ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Complex Molecules ◽  
Solvent Water ◽  
Dimensional Network ◽  
Distorted Octahedral

In the title complex, [Cd(NO3)2(C20H14N4)2]·2H2O, the CdII ion, which lies on a crystallographic twofold axis, is bis-chelated by two nitrate ligands and is coordinated by one tertiary N atom from each of two 1,3-bis(1H-benzimidazol-2-ylmethyl)benzene ligands in a distorted octahedral geometry. In the crystal structure, complex molecules and solvent water molecules are connected via hydrogen bonds to form a three-dimensional network.

scholarly journals Tris(5,6-dimethyl-1H-benzimidazole-κN 3)(pyridine-2,6-dicarboxylato-κ3 O 2,N,O 6)nickel(II)

2012 ◽  
Vol 68 (6) ◽  
pp. m739-m739
Author(s):  
Yue-Hua Li ◽  
Feng-Feng Li ◽  
Xin-Hua Liu ◽  
Ling-Yan Zhao
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Octahedral Geometry ◽  
Mononuclear Complex ◽  
Distorted Octahedral Geometry ◽  
Distorted Octahedral ◽  
Dicarboxylate Ligand

The title mononuclear complex, [Ni(C7H3NO4)(C9H10N2)3], shows a central NiII atom which is coordinated by two carboxylate O atoms and the N atom from a pyridine-2,6-dicarboxylate ligand and by three N atoms from different 5,6-dimethyl-1H-benzimidazole ligands in a distorted octahedral geometry. The crystal structure shows intermolecular N—H...O hydrogen bonds.

(μ3-Benzene-1,3,5-tricarboxylato)tris[aqua(N,N,N′,N′′,N′′-pentamethyldiethylenetriamine)nickel(II)] tris(perchlorate) 4.25-hydrate

2007 ◽  
Vol 63 (11) ◽  
pp. m2860-m2861
Author(s):  
Zdeněk Trávníček ◽  
Jaromír Marek ◽  
Šárka Čermáková
Keyword(s):  
Crystal Structure ◽  
Secondary Structure ◽  
Water Molecule ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Water Solvent ◽  
Distorted Octahedral ◽  
Intermolecular Contacts ◽  
Solvent Molecules

In the title complex, [Ni3(C9H3O6)(C9H23N3)3(H2O)3](ClO4)3·4.25H2O, the three NiII centres are bridged by a benzene-1,3,5-tricarboxylate(3−) anion (btc). Each of the metal centres is coordinated by three N atoms of a tridentate N,N,N′,N′′,N′′-pentamethyldiethylenetriamine ligand (pmdien), two O atoms of the btc ligand and one water molecule in a distorted octahedral geometry. The secondary structure is stabilized by a variety of O—H...O hydrogen bonds and C—H...O interactions that serve to connect the complex cations, perchlorate anions and water solvent molecules. Variability of intermolecular contacts stabilizing the crystal structure leads to disorder of part of O atoms of two perchlorate anions between two positions with occupancies 0.632 (5) and 0.337 (7).

scholarly journals Crystal structure of poly[aqua[μ-1,1′-(9,9-dimethyl-9H-fluoren-2,7-diyl)di-1H-imidazole](μ-naphthalene-1,4-dicarboxylato)nickel(II)]

2014 ◽  
Vol 70 (9) ◽  
pp. m324-m325
Author(s):  
Hengye Zou ◽  
Yanjuan Qi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Asymmetric Unit ◽  
Axis Direction ◽  
Carboxylate Anions ◽  
Distorted Octahedral

In the title compound, [Ni(C12H6O4)(C21H18N4)(H2O)]n, the NiIIcation is coordinated by three carboxylate O atoms of two naphthalene-1,4-dicarboxylate anions, one water molecule and two N atoms of two 1,1′-(9,9-dimethyl-9H-fluoren-2,7-diyl)di-1H-imidazole (DFDI) ligands, giving rise to a slightly distorted octahedral geometry. The NiIIions are linked by the DFDI ligands into chains, which are further connected by the carboxylate anions into double chains that elongate in the theb-axis direction. These double chains are linked by centrosymmetric pairs of O—H...O hydrogen bonds into layers parallel to (10-1). The asymmetric unit consists of one crystallographically independent NiIIcation, one carboxylate and one DFDI ligand, as well as of one water molecule, all of them located in general positions.

scholarly journals Bis(2,2′-bipyridine)[1,9-bis(diphenylphosphanyl)-1,2,3,4,6,7,8,9-octahydropyrimido[1,2-a]pyrimidin-5-ium]ruthenium(II) hexafluoridophosphate dibromide dichloromethane disolvate monohydrate

2013 ◽  
Vol 69 (12) ◽  
pp. m640-m641 ◽  
Author(s):  
Congcong Shang ◽  
Laure Vendier ◽  
Pierre Sutra ◽  
Alain Igau
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Solvent Molecules ◽  
Cl Atom

In the cation of the title complex, [Ru(C31H32N3P2)(C10H8N2)2](PF6)(Br)2·2CH2Cl2·H2O, the ruthenium ion is coordinated in a distorted octahedral geometry by two 2,2′-bipyridine (bpy) ligands and a chelating cationicN-diphenylphosphino-1,3,4,6,7,8-hexahydro-2-pyrimido[1,2-a]pyrimidine [(PPh2)2-hpp] ligand. The tricationic charge of the complex is balanced by two bromide and one hexafluoridophosphate counter-anions. The compound crystallized with two molecules of dichloromethane (one of which is equally disordered about a Cl atom) and a water molecule. In the crystal, one of the Br anions bridges two water moleculesviaO—H...Br hydrogen bonds, forming a centrosymmetric diamond-shapedR42(8) motif. The cation and anions and the solvent molecules are linkedviaC—H...F, C—H...Br, C—H...Cl and C—H...O hydrogen bonds, forming a three-dimensional network.

scholarly journals Crystal structure of tetraaqua(dimethylformamide)tetrakis(μ-N,2-dioxidobenzene-1-carboximidato)tetrakis(μ-trimethylacetato)tetramanganese(III)sodiumyttrium–dimethylformamide–water (1/8.04/0.62)

2015 ◽  
Vol 71 (11) ◽  
pp. 1300-1306 ◽  
Author(s):  
Jordan R. Travis ◽  
Matthias Zeller ◽  
Curtis M. Zaleski
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Repeat Unit ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Central Cavity ◽  
Synthesis And Crystal Structure ◽  
Distorted Octahedral

The synthesis and crystal structure for the title compound, [YNaMn4(C7H4NO3)4(C5H9O2)4(H2O)3.76(C3H7NO)0.24]·8.04C3H7NO·0.62H2O or [YIIINa(OTMA)4[12-MCMn(III)N(shi)-4](H2O)3.76(DMF)0.24·8.04DMF·0.62H2O, where OTMA is trimethylacetate, MC is metallacrown, shi3−is salicylhydroximate, and DMF isN,N-dimethylformamide, is reported. The macrocyclic metallacrown consists of an –[MnIII–N–O]4– ring repeat unit, and the metallacrown captures one YIIIion and one NaIion in the central cavity on opposite faces of the metallacrown. Overall the metallacrown is domed towards the side of the NaIion. Both the YIIIand NaIions are eight-coordinate, and the trimethylacetate anions bridge the central YIIIto each ring MnIIIion. The ring MnIIIions are six-coordinate with a tetragonally distorted octahedral geometry.

scholarly journals Crystal structure ofcatena-poly[[diaquacadmium(II)]-μ-3,3′-(1,3-phenylene)diacrylato]

2015 ◽  
Vol 71 (4) ◽  
pp. m91-m92
Author(s):  
Xiao-Ping Zhang ◽  
Xin Chen ◽  
Kun-Lin Huang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Architecture ◽  
Polymeric Complex ◽  
Distorted Octahedral

In the crystal of the title polymeric complex, [Cd(C12H8O4)(H2O)2]n, the CdIIcation, located on a twofold rotation axis, is coordinated by two water molecules and chelated by two phenylenediacrylate anions (mpda) in a distorted octahedral geometry. The mpda anions bridge the CdIIcations, forming helical chains propagating along thec-axis direction. The mpba anion has twofold symmetry with two benzene C atoms located on the twofold rotation axis. In the crystal, O—H...O hydrogen bonds link the polymeric helical chains into a three-dimensional supramolecular architecture.

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