scholarly journals Crystal and Molecular Structure of Bis(2,2-diphenyl-N-(di-n-propylcarbamothioyl) acetamido)copper(II) Complex

2011 ◽  
Vol 8 (s1) ◽  
pp. S455-S461 ◽  
Author(s):  
Hakan Arslan ◽  
Ulrich Flörke ◽  
Demet Sezgin Mansuroglu
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure ◽  
Planar Geometry ◽  
Carbonyl Groups ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
Electronic Delocalization ◽  
Square Planar ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Bis(2,2-diphenyl-N-(di-n-propylcarbamothioyl) acetamido)copper(II) complex has been synthesized and characterized by elemental analysis and FT-IR spectroscopy. The crystal and molecular structure of the title compound has been determined from single crystal X-ray diffraction data. It crystallizes in the triclinic space group P-1, witha= 13.046(2) Å,b= 13.135(2) Å,c= 13.179(2) Å, α= 67.083(4)°, β= 67.968(4)°,γ= 84.756(4)° andDcalc=1.330 g/cm3for Z = 2. The crystal structure confirms that the complex is a mononuclear copper(II) complex and the 2,2-diphenyl-N-(di-n-propyl-carbamothioyl)acetamide ligand is a bidentate chelating ligand, coordinating to the copper atom through the thiocarbonyl and carbonyl groups. This coordination has a slightly distorted square-planar geometry (O1-Cu1-O2: 86.48(11)°, O1-Cu1-S1: 93.85(9)°, O2-Cu1-S2: 94.20(9)° and S1-Cu1-S2: 91.21(4)°). The title molecule shows acis-arrangement and C–O, C–S and C–N bond lengths of the complex suggest considerable electronic delocalization in the chelate rings.

Trigonal dodecahedral sodium coordination in a trinuclear copper(II)-sodium complex incorporating a salen-type compartmental Schiff base

2017 ◽  
Vol 72 (2) ◽  
pp. 133-140 ◽  
Author(s):  
Madhusudan Nandy ◽  
Debnath Saha ◽  
Corrado Rizzoli ◽  
Shyamapada Shit
Keyword(s):  
Schiff Base ◽  
Sodium Ion ◽  
Planar Geometry ◽  
X Ray Diffraction ◽  
X Ray ◽  
Square Planar ◽  
Physicochemical Studies ◽  
Ft Ir ◽  
Good Agreement ◽  
Ft Ir Spectroscopy

AbstractA new trinuclear heterometallic complex, [(CuL)Na(CuL)]·ClO4 (1), has been prepared using a Schiff base, H2L (where H2L=N,N′-(1,2-phenylene)-bis(3-methoxysalicylideneimine) and characterized by elemental analysis, Fourier transform infra-red (FT-IR) spectroscopy, UV/Vis, magnetic, electrochemical, and single crystal X-ray diffraction methods. The structure analysis reveals that two metallo-ligand [(CuL)] units are connected to each other by a sodium ion resulting in the cationic unit [(CuL)Na(CuL)]+. Both the copper(II) ions display an almost square planar geometry while the sodium ion adopts a trigonal-dodecahedral coordination geometry. The spectroscopic and other physicochemical studies are in good agreement with the crystal structure of the complex.

trans-Bis[1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene]dichloronickel(II): Synthesis and Structure

2007 ◽  
Vol 72 (5-6) ◽  
pp. 609-617 ◽  
Author(s):  
Andrzej Kozioł ◽  
Stanisław Pasynkiewicz ◽  
Antoni Pietrzykowski ◽  
Lucjan B. Jerzykiewicz
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure ◽  
Nickel Atom ◽  
Planar Geometry ◽  
Monoclinic Crystal System ◽  
X Ray Diffraction ◽  
Monoclinic Crystal ◽  
One Pot ◽  
X Ray ◽  
Square Planar

trans-Bis[1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene]dichloronickel(II), [NiCl2(SIMes)2], was synthesized in a one-pot reaction of fluorenyllithium with nickel(II) bromide followed by the addition of 1,3-bis(2,4,6-trimethylphenyl)imidazolidinium chloride. Labile difluorenyl- nickel, formed in the course of the reaction, behaves differently than nickelocene and indenocene in analogous reactions. It exchanges both fluorenyl ligands giving the title compound. The crystal and molecular structure of this compound have been determined by single-crystal X-ray diffraction. The compound crystallizes in the monoclinic crystal system with square-planar geometry around the central nickel atom.

scholarly journals Metal Complexes of π-Expanded Ligand (7): Syntheses, Structures and Properties of Pt(II) Complexes Containing the Isomeric 1- and 2-Alkyliminomethyl Pyrene Ligands

Crystals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 476 ◽  
Author(s):  
Xuan-Dien Luong ◽  
Xuan-Truong Nguyen
Keyword(s):  
Molecular Structure ◽  
Planar Geometry ◽  
X Ray Diffraction ◽  
X Ray ◽  
Pt Complex ◽  
Physico Chemical ◽  
Clear Explanation ◽  
Square Planar ◽  
Structures And Properties ◽  
The Relationship

A [O,N] bidentate π-expanded ligand system, (E)-1-(n-octylimino)methylpyren-2-ol (2), was newly synthesized via a six-step synthesis from pyrene. The ligand 2 reacts with [PtCl2(PhCN)2] in chlorobenzene and the presence of a base at reflux for 2 h under the formation of (2(Pt)) complex with a yield of 70%. The molecular structure of (2(Pt)), studied by common spectroscopic methods and X-ray diffraction, shows a square planar geometry with a trans-configuration of the ligands. The molecular structure, absorption spectra, electrochemical properties, and phosphorescence characteristics of the (2(Pt)) complex are discussed, emphasizing the comparison with those of the previously reported Pt complex (1(Pt)) containing the isomeric ligands of 2, (E)-2-(n-octylimino)methylpyren-1-ol. The DFT calculations of the two Pt complexes are carried out and exhibit a clear explanation of the relationship between their physico-chemical characteristics.

A New Binuclear Lutetium(III) Dimethyl-N-trichloroacetylamidophosphate Complex with a γ, γ'-Dipyridyl Bridge, {Lu[CCl3C(O)NP(O)(OCH3)2]3}2-μ(γ,γ'-dipy)

2001 ◽  
Vol 56 (3) ◽  
pp. 249-254 ◽  
Author(s):  
Victor A. Trush ◽  
Jolanta Swiatek-Kozlowska ◽  
Victor V. Skopenko ◽  
Vladimir M. Amyrkhanov
Keyword(s):  
Crystal And Molecular Structure ◽  
Carbonyl Oxygen ◽  
Carbonyl Groups ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
Metal Centers ◽  
X Ray ◽  
Heterocyclic Ligand ◽  
New Type ◽  
Ir Spectroscopic

Abstract A new type of binuclear coordination compound of lutetium, {Lu2L6 · μ-(γ,γ '-dipy)} (where L = dimethyl-N-trichloroacetylamidophosphate anion and γ,γ '-dipy = 4,4'-dipyridyl), has been obtained. The IR spectroscopic data reveal that the ambidentate phosphoryl ligand is coordinated to the metal center in a bidentate manner via the phosphoryl and carbonyl oxygen atoms. The crystal and molecular structure of {Ln2L6-μ-(γ ,γ '-dipy)} has been determined by means of X-ray diffraction (triclinic, space group P i with parameters: a = 9.259(2), b = 12.530(3), c = 16.548(3) Å, α = 85.44(3)°, β = 75.64(3)°, γ = 70.56(3)°, Z = 1). The structure is made up of centrosymmetric binuclear molecules, in which the neutral heterocyclic ligand is coordinated to the metal centers in a bidentate bridging manner via its nitrogen atoms. The coordination number of each Lu(III) atom is 7 [60(L-) + N((γ ,γ '-dipy)]. Phosphoryl and carbonyl groups of the L- ligands are disposed in syn-position and are included in the six-membered chelate metallocycles. The coordination polyhedron of lutetium can be described as distorted mono-capped octahedron.

scholarly journals Crystal structure of unsymmetrical α-diimine palladium(II) complex cis-[{ArN=C(Me)–(Et)C=NAr}PdCl2] [Ar = 2,6-(iPr)2C6H3]

2017 ◽  
Vol 73 (8) ◽  
pp. 1148-1150
Author(s):  
Shravan Kumar Ellandula ◽  
Cosmos Opoku Amoako ◽  
Joel T. Mague ◽  
Perumalreddy Chandrasekaran
Keyword(s):  
Molecular Structure ◽  
Palladium Complex ◽  
Crystal And Molecular Structure ◽  
Chelate Ring ◽  
X Ray Diffraction ◽  
X Ray ◽  
Square Planar ◽  
Diimine Ligand ◽  
Coordination Plane ◽  
N Vector

The unsymmetrical α-diimine ligand N-{2-[2,6-bis(propan-2-yl)phenylimino]pentan-3-ylidene}-2,6-bis(propan-2-yl)aniline, [ArN=C(Me)—(Et)C=NAr] [Ar = 2,6-(iPr)2C6H3], (I), and the corresponding palladium complex, cis-(N-{2-[2,6-bis(propan-2-yl)phenylimino]pentan-3-ylidene}-2,6-bis(propan-2-yl)aniline)dichloridopalladium(II) 1,2-dichloroethane monosolvate, [PdCl2(C29H42N2)]·C2H4Cl2 or cis[PdCl2{I}], (II), have been synthesized and characterized. The crystal and molecular structure of the palladium(II) complex have been established by single-crystal X-ray diffraction. The compound crystallized along with a 1,2-dichloroethane solvent of crystallization. The coordination plane of the PdII atom shows a slight tetrahedral distortion from square-planar, as indicated by the dihedral angle between the PdCl2 and PdN2 planes of 4.19 (8)°. The chelate ring is folded along the N...N vector by 7.1 (1)°.

Molecular and Crystal Structure of Two Cyclobuten-3,4-dione Derivatives: The Dithallium Salt of 1,2-Dicyanimino-(TI2CMCB) and the 1,2-Diiodocyclobuten-3,4-dione (I2CB)

1989 ◽  
Vol 44 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Bruno Lunelli ◽  
Magda Monari
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Crystal And Molecular Structure ◽  
Molecular And Crystal Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Calorimetric Measurements ◽  
Ft Ir

Abstract The crystal and molecular structure of the dithallium salt of the 1,2-dicyanim inocyclobuten-3,4-dione dianion and of 1,2-diiodocyclobuten-3,4-dione, determined by X-ray diffraction, are reported and discussed. Results of FT-IR and calorimetric measurements are also presented.

Synthesis, IR and X-Ray Studies of a Dioxouranium(VI) Nitrate Complex with N,N′-Tetraethyl-N″ -trichloracetylphosphortriamide

1997 ◽  
Vol 52 (10) ◽  
pp. 1194-1198 ◽  
Author(s):  
Vladimir M. Amirkhanov ◽  
Joachim Sieler ◽  
Victor A. Trush ◽  
Vladimir A. Ovchynnikov ◽  
Konstantin V. Domasevitch
Keyword(s):  
Crystal And Molecular Structure ◽  
Carbonyl Groups ◽  
Nitrate Complex ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
X Ray ◽  
Phosphoryl Oxygen ◽  
Neutral Ligands ◽  
Ambidentate Ligand ◽  
Ir Spectroscopic

A new dioxouranium(VI) nitrate complex with N,N′-tetraethyl-N″-trichloracetylphosphortriamide (HL = CCl3C(O)N(H)P(O)(NEt2)2) of composition UO2 (HL)2(NO3)2 (1) has been synthesised. The IR spectroscopic data reveal that the ambidentate ligand is coordinated to the metal center in a monodentate manner via the phosphoryl oxygen atom. The crystal and molecular structure of 1 has been determined from X-ray diffraction data (triclinic, space group P1̄ with a = 9.225(2), b = 10.360(2), c = 12.249(2) Å, α = 100.02 (1), β = 103.81(1), γ = 108.80 (1)°, Z = 1; R = 0.037 for 4092 unique reflections. The structure is made up of centrosymmetric molecules in which the neutral ligands HL are monocoordinated. Phosphoryl and carbonyl groups of the HL moieties are in the trans positions to each other. The axial vertices of the distorted hexagonal bipyramid of uranium are occupied by two oxo ligands [U-O 1.753(5) Å] while six oxygen atoms of phosphoryl and nitrate groups lie in the equatorial plane [U-O 2.347(5)-2.547(6)Å],

The Crystal and Molecular Structure of the Trinuclear Complex Bis[(μ-S)-α,α′-{(2-mercapto-5-methylbenzene-1,3-diyl)di(methylidyne)di(azino)}bis(cyclohexane-methanol)ato(3-)]tripalladium(II), L2Pd3. A New Coordination Mode for the Robson-Type Ligand L3-

1989 ◽  
Vol 42 (7) ◽  
pp. 1057 ◽  
Author(s):  
BF Hoskins ◽  
IAS Mcdonald
Keyword(s):  
Molecular Structure ◽  
Coordination Mode ◽  
Crystal And Molecular Structure ◽  
Trinuclear Complex ◽  
Binuclear Complexes ◽  
Central Metal ◽  
The Novel ◽  
X Ray Diffraction ◽  
Square Planar ◽  
Oxygen Groups

The crystal and molecular structure of the trinuclear complex L2Pd3 has been determined by single-crystal X-ray diffraction techniques at room temperatures, 20°C. The quinquedentate binucleating ligand, L3-, is formally the trianion α,α′-[(2-mercapto-5-methylbenzene-1,3-diyl )di(methylidyne)di(azino)]bis(cyclohexaemethano)ato(3-). Crystals of L2Pd3 are triclinic, PI, with a 11.896(1), b 13.4103(7), c 17.451(3) � , α 75.66(1), β 79.93(1) and γ88.99(1)�, Z 2. The structure was solved by the normal Fourier methods and refined by a least-squares procedure which gave final R and R, values of 0.046 and 0.049 respectively for the 7769 statistically significant reflections. The approximately square-planar coordination environments of the palladium centres give rise to a boat-shaped arrangement in which an approximate, non-crystallographic, twofold axis normal to the plane of the central metal is evident. The notable feature of the structure lies in the novel coordination mode adopted by the binucleating ligand. With respect to the binuclear complexes of this ligand, an electronic reorganization has occurred in one of the sidearms of both ligands which enables the formation of the pair of hydrazine bridges and also causes two of the terminal oxygen groups to become non-coordinating.

Crystal and molecular structure of 4α-t-Butylcyclohexane-1β,2β-diol

1972 ◽  
Vol 25 (10) ◽  
pp. 2117 ◽  
Author(s):  
MD Brice ◽  
BR Penfold ◽  
WT Robinson
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure ◽  
Chair Conformation ◽  
Intensity Data ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
Full Matrix ◽  
X Ray ◽  
R Factor ◽  
Least Squares Techniques

The crystal and molecular structure of 4α-t-butylcyclohexane-1β,2,β-diol, C10H20O2, has been determined by X-ray diffraction methods. The compound crystallizes in the triclinic space group Pi with 4 molecules in a unit cell of dimensions a = 12.268, b = 15.921, c = 6.322�, α = 82.53, β = 114.45, γ = 111.13�. The intensity data were measured by counter methods using Cu Kα radiation; the structure was solved by means of the tangent formula, and was refined using full matrix least-squares techniques to a final R-factor of 0.063 for 1199 reflections. The crystal structure consists of two sets of crystallographically non-equivalent molecules hydrogen-bonded to form discrete chains parallel to the c axis. The cyclohexane rings are in the chair conformation.

Reactions of "cyclen-" and "cyclam-phosphorane" with [Pt2Cl4(PEt3)2]. Monodentate and bidentate complexes and the crystal and molecular structure of [PtCl(PEt3)(cyclamPH)]Cl•CH2Cl2

1989 ◽  
Vol 67 (1) ◽  
pp. 48-53 ◽  
Author(s):  
David Eric Berry ◽  
Jane Browning ◽  
Gordon William Bushnell ◽  
Keith Roger Dixon ◽  
Alan Pidcock
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Simple Formula ◽  
Crystal And Molecular Structure ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Nmr Studies ◽  
X Ray ◽  
Square Planar ◽  
Coordination Plane

Reaction of "cyclamphosphorane" (cyclamPH) with [Pt2Cl4(PEt3)2] yields [PtCl(PEt3)(cyclamPH)]Cl. The complex crystallizes as a dichloromethane solvate in the monoclinic space group P21/n, with a = 13.877(3), b = 23.231(7), c = 8.295(2)Å, β = 91.86(4)°, and an X-ray diffraction study shows square planar platinum coordination in which the labile proton of cyclamPH has transferred from phosphorus to nitrogen and the ligand is attached via simple [Formula: see text] chelation. The phosphorus is trans to chlorine in the platinum coordination plane.The corresponding product, trans-[PtCl2(PEt3)(cyclenPH2)]Cl, derived from reaction of "cyclenphosphorane" (cyclenPH) with [Pt2Cl4(PEt3)2], is shown by NMR studies to have a quite different structure in which the ligand is protonated at two nitrogen sites but not at phosphorus. The phosphorus is pentacoordinate with four attachments to nitrogen atoms and one to platinum. The two chlorine atoms are mutually trans in the platinum coordination plane. Keywords: crystal structure, cyclenphosphorane reaction, cyclamphosphorane reaction, X-ray diffraction.

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