Ligand Conformation Enforces Trigonal Bipyramidal Coordination Geometry in a New Dinuclear Bis(pyrazolato)-Bridged Copper(II) Complex:  Synthesis, Crystal Structure, and Properties of [Cu(Npy2pz)]2(ClO4)2·2CH3CN

2005 ◽  
Vol 44 (22) ◽  
pp. 7860-7865 ◽  
Author(s):  
Stefania Tanase ◽  
Iryna A. Koval ◽  
Elisabeth Bouwman ◽  
René de Gelder ◽  
Jan Reedijk
Keyword(s):  
Crystal Structure ◽  
Coordination Geometry ◽  
Structure And Properties ◽  
Trigonal Bipyramidal Coordination ◽  
Trigonal Bipyramidal ◽  
Ligand Conformation

scholarly journals Crystal structure of tribenzylbis(tetrahydrofuran-κO)lutetium(III)

2018 ◽  
Vol 74 (2) ◽  
pp. 88-90 ◽  
Author(s):  
Kuburat O. Saliu ◽  
Josef Takats ◽  
Robert McDonald
Keyword(s):  
Crystal Structure ◽  
Carbon Atom ◽  
Title Compound ◽  
Coordination Geometry ◽  
Trigonal Bipyramidal Coordination ◽  
Trigonal Bipyramidal

In the title compound, [Lu(C7H7)3(C4H8O)2] (1), the Lu ion is coordinated by three benzyl and two tetrahydrofuran ligands. Two of the benzyl groups are bonded in a classical η1-fashion through the methylene via the ipso-carbon atom of the benzyl ligand in addition to bonding through the methylene C atom, resulting in a modified trigonal–bipyramidal coordination geometry about the Lu center.

scholarly journals [N′-(4-Decyloxy-2-oxidobenzylidene)-3-hydroxy-2-naphthohydrazidato-κ3N,O,O′]dimethyltin(IV): crystal structure and Hirshfeld surface analysis

2017 ◽  
Vol 73 (3) ◽  
pp. 390-396
Author(s):  
Siti Nadiah Binti Mohd Rosely ◽  
Rusnah Syahila Duali Hussen ◽  
See Mun Lee ◽  
Nathan R. Halcovitch ◽  
Mukesh M. Jotani ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Mirror Symmetry ◽  
Chelate Ring ◽  
Hirshfeld Surface ◽  
Methyl Groups ◽  
Coordination Geometry ◽  
Trigonal Bipyramidal ◽  
First Approximation ◽  
Benzene Rings ◽  
Local Mirror Symmetry

The title diorganotin compound, [Sn(CH3)2(C28H32N2O4)], features a distorted SnC2NO2coordination geometry almost intermediate between ideal trigonal–bipyramidal and square-pyramidal. The dianionic Schiff base ligand coordinates in a tridentate fashionviatwo alkoxide O and hydrazinyl N atoms; an intramolecular hydroxy-O—H...N(hydrazinyl) hydrogen bond is noted. The alkoxy chain has an all-transconformation, and to the first approximation, the molecule has local mirror symmetry relating the two Sn-bound methyl groups. Supramolecular layers sustained by imine-C—H...O(hydroxy), π–π [between decyloxy-substituted benzene rings with an inter-centroid separation of 3.7724 (13) Å], C—H...π(arene) and C—H...π(chelate ring) interactions are formed in the crystal; layers stack along thecaxis with no directional interactions between them. The presence of C—H...π(chelate ring) interactions in the crystal is clearly evident from an analysis of the calculated Hirshfeld surface.

Crystal structure of phosphonium carboxylate complexes. The role of the metal coordination geometry, ligand conformation and hydrogen bonding

CrystEngComm ◽  
2014 ◽  
Vol 16 (38) ◽  
pp. 9010-9024 ◽  
Author(s):  
Irina Galkina ◽  
Artem Tufatullin ◽  
Dmitry Krivolapov ◽  
Yuliya Bakhtiyarova ◽  
Dinara Chubukaeva ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Metal Coordination ◽  
Coordination Geometry ◽  
Carboxylate Complexes ◽  
Ligand Conformation

scholarly journals Crystal structure of tricarbonyl(N-diphenylphosphanyl-N,N′-diisopropyl-P-phenylphosphonous diamide-κ2P,P′)cobalt(I) tetracarbonylcobaltate(−I) toluene 0.25-solvate

2014 ◽  
Vol 70 (12) ◽  
pp. 533-535
Author(s):  
Laura Dura ◽  
Anke Spannenberg ◽  
Torsten Beweries
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Structural Element ◽  
Trigonal Bipyramidal ◽  
Toluene Molecule ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Interionic Hydrogen ◽  
Distorted Trigonal Bipyramidal

The asymmetric unit of the title compound, [Co(C24H30N2P2)(CO)3][Co(CO)4]·0.25C7H8, consists of two crystallographically independent cations with similar conformations, two anions, and one-half of a toluene molecule disordered about an inversion centre. In the cations, a Co/P/N/P four-membered slightly bent metallacycle is the key structural element. The pendant NH group is not coordinated to the CoIatom, which displays a distorted trigonal–bipyramidal coordination geometry. Weak interionic hydrogen bonds are observed between the NH groups and a carbonyl group of the tetrahedral [Co(CO)4]−anions.

scholarly journals Crystal structure of a 1:1 adduct of triphenyltin chloride with 3-cyclohexhyl-2-phenyl-1,3-thiazolidin-4-one

2019 ◽  
Vol 75 (3) ◽  
pp. 338-341
Author(s):  
Hemant P. Yennawar ◽  
John Tierney ◽  
Kevin C. Cannon
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Oxygen Atom ◽  
Title Compound ◽  
Chloride Anion ◽  
Dihedral Angles ◽  
Coordination Geometry ◽  
Ring Plane ◽  
Trigonal Bipyramidal ◽  
Triphenyltin Chloride

In the centrosymmetric (racemic) title compound, chlorido(3-cyclohexhyl-2-phenyl-1,3-thiazolidin-4-one-κO)triphenyltin(IV), [Sn(C6H5)3Cl(C15H19NOS)], the tin(IV) atom exhibits a trigonal–bipyramidal coordination geometry with the three phenyl groups in equatorial positions and the chloride anion and ligand oxygen atom present at axial sites [O—Sn—Cl = 175.07 (14)°]. The thiazolidinone ring of the ligand adopts an envelope conformation with the S atom as the flap. The dihedral angles between the heterocycle ring plane (all atoms) are 44.3 (9)° with respect to the pendant C-phenyl plane and 34.3 (11)° to the N-cyclohexyl ring (all atoms). The C-phenyl and N-cyclohexyl ring are close to orthogonal to each other, with a dihedral angle of 81.1 (4)° between them. In the crystal, molecules are linked by weak C—H...Cl hydrogen bonds to generate [001] chains.

scholarly journals Crystal structure of dibromido(N,N-dimethylformamide-κO){2-(1H-indol-3-yl)-N-[(quinolin-2-yl-κN)methylidene]ethanamine-κN}cadmium

2015 ◽  
Vol 71 (2) ◽  
pp. m31-m32 ◽  
Author(s):  
Md. Serajul Haque Faizi ◽  
Natalia O. Sharkina ◽  
Yuliya M. Davydenko
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Equatorial Plane ◽  
Title Complex ◽  
Coordination Geometry ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal

In the mononuclear title complex, [CdBr2(C20H17N3)(C3H7NO)], synthesized from the quinoline-derived Schiff base 2-(1H-indol-3-yl)-N-(quinolin-2-ylmethylene)ethanamine (IQME), the coordination geometry around the Cd2+atom is distorted trigonal bipyramidal, the axial positions being occupied by the quinoline N atom [Cd—N = 2.401 (3) Å] and one dimethylformamide O-atom donor [Cd—O = 2.399 (2) Å]. The equatorial plane is formed by the imine N atom [Cd—N = 2.293 (3) Å] and two bromides [Cd—Br = 2.5621 (8) and 2.5676 (8) Å], with the deviation of the CdIIatom from the equatorial plane being 0.046 (1) Å. An intramolecular C—H...Br interaction occurs. In the crystal, N—H...Br interactions generate [101] chains.

Two ZnIImononuclear coordination compounds with pyridinedicarboxylate and auxiliaryN-(pyridin-4-ylmethylidene)hydroxylamine ligands

2014 ◽  
Vol 70 (12) ◽  
pp. 1101-1104 ◽  
Author(s):  
Eduard B. Coropceanu ◽  
Ana Dreab ◽  
Lilia Croitor
Keyword(s):  
Single Crystal ◽  
Coordination Compounds ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Coordination Geometry ◽  
X Ray ◽  
Trigonal Bipyramidal Coordination ◽  
Trigonal Bipyramidal ◽  
Distorted Octahedral

Two new mononuclear coordination compounds, bis{4-[(hydroxyimino)methyl]pyridinium} diaquabis(pyridine-2,5-dicarboxylato-κ2N,O2)zincate(II), (C6H7N2O)2[Zn(C7H3NO4)2(H2O)2], (1), and (pyridine-2,6-dicarboxylato-κ3O2,N,O6)bis[N-(pyridin-4-ylmethylidene-κN)hydroxylamine]zinc(II), [Zn(C7H3NO4)(C6H6N2O)2], (2), have been synthesized and characterized by single-crystal X-ray diffractometry. The centrosymmetric ZnIIcation in (1) is octahedrally coordinated by two chelating pyridine-2,5-dicarboxylate ligands and by two water molecules in a distorted octahedral geometry. In (2), the ZnIIcation is coordinated by a tridentate pyridine-2,6-dicarboxylate dianion and by twoN-(pyridin-4-ylmethylidene)hydroxylamine molecules in a distortedC2-symmetric trigonal bipyramidal coordination geometry.

scholarly journals Crystal structure of di-μ2-chlorido-bis[(1-aza-4-azoniabicyclo[2.2.2]octane-κN1)dichloridodicadmium]

2015 ◽  
Vol 71 (12) ◽  
pp. m259-m260
Author(s):  
Jing-Jing Yan ◽  
Qi-Jian Pan ◽  
Li-Zhuang Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Metal Cation ◽  
Title Compound ◽  
Two Dimensional ◽  
Coordination Environment ◽  
Trigonal Bipyramidal Coordination ◽  
Trigonal Bipyramidal ◽  
Dimensional Network

In the structure of the binuclear title compound, [Cd2(C6H13N2)2Cl6], two CdIIatoms are bridged by two Cl−ligands, defining a centrosymmetric Cd2Cl2motif. Each metal cation is additionally coordinated by two Cl−ligands and the N atom of a protonated 1,4-diazabicyclo[2.2.2]octane (H-DABCO)+ligand, leading to an overall trigonal–bipyramidal coordination environment with one of the bridging Cl−ligands and the N atom at the apical sites. In the crystal, the neutral dimers are linkedviaN—H...Cl hydrogen bonds, forming a two-dimensional network expanding parallel to (100).

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