Crystal and molecular structure of cis-[dichlorobis(methyl phenyl sulphoxide)]platinum(II) and cis-[dichlorobis(benzyl methyl sulphoxide)]platinum(II). An X-ray and NMR spectroscopic study

1991 ◽  
pp. 955 ◽  
Author(s):  
Luciano Antolini ◽  
Ugo Folli ◽  
Dario Iarossi ◽  
Luisa Schenetti ◽  
Ferdinando Taddei
Keyword(s):  
Molecular Structure ◽  
Spectroscopic Study ◽  
Crystal And Molecular Structure ◽  
X Ray ◽  
Methyl Phenyl

Structural studies in the ruthenium(II)/(±)-ortho-Phenylenebis{methyl(phenyl)-phosphine/arsine} system. I. Crystal structure of trans-Carbonylhydridobis-[(±)-ortho-phenylenebis {methyl(phenyl)phosphine)]ruthenium(II)hexafluorophosphate(V)-acetone (1/2)

1983 ◽  
Vol 36 (2) ◽  
pp. 259 ◽  
Author(s):  
SC Grocott ◽  
BW Skelton ◽  
AH White
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Diffraction Study ◽  
Crystal And Molecular Structure ◽  
Title Complex ◽  
Structural Studies ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ruthenium Atom ◽  
Methyl Phenyl

The crystal and molecular structure of the title complex, trans-[RuH(CO)(opmpp)2]+ (PF6)-.2(CH3)2- CO [opmpp ≡ (�)-ortho-phenylenebis {methyl(phenyl)phosphine) , o-C6H4(PMePh)2], has been established by a single-crystal X-ray diffraction study at 295(1) K, being refined to a residual of 0.066 for 2293 independent 'observed' reflections. Crystals are monoclinic, C2/c, a 11.943(4), b 26.151(9), c 15.974(6) �, β 90.97(7)�, Z 4. In the model adopted, the ruthenium atom is located on a crystallographic twofold axis; the carbonyl and hydrido ligands lie trans to each other and are disordered about the ruthenium atom. The ruthenium-phosphorus distances are 2.320(2) and 2.317(2)�.

Structural studies in the ruthenium(II)/(±)-ortho-Phenylenebis{methyl(phenyl)-phosphine/arsine} system. III. Crystal structures of Dichlorocarbonyl(dimethyl sulfoxide)-[ortho-phenylenebis {methyl(phenyl)phosphine}]ruthenium(II) and of cis-dicarbonyldichloro[(±)-ortho-phenylenebis{methyl(phenyl)arsine}]ruthenium(II)

1983 ◽  
Vol 36 (2) ◽  
pp. 271 ◽  
Author(s):  
SR Hall ◽  
BW Skelton ◽  
AH White
Keyword(s):  
Molecular Structure ◽  
Diffraction Study ◽  
Dimethyl Sulfoxide ◽  
Crystal And Molecular Structure ◽  
Title Complex ◽  
Structural Studies ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carbonyl Ligands ◽  
Methyl Phenyl

The crystal and molecular structure of the title complex, cis-[Ru(CO)Cl2(dmso)(opmpp)] (1) (dmso ≡ dimethyl sulfoxide, Me2SO; opmpp ≡ (�)-ortho-phenylenebis {methyl(phenyl)phosphine},[o-C6H4(PMePh)2]), has been determined by a single-crystal X-ray diffraction study at 295(1) K, being refined to a residual of 0.050 for 6115 independent 'observed' reflections. Crystals are monoclinic, P21/c, a 11.180(7), b 12.957(6), c 17.567(9) �, β 90.88(5)�, Z 4. The ruthenium-chlorine distances, trans to phosphine and carbonyl ligands, respectively, are 2.469(2), 2.446(2) �; the ruthenium-phosphine distances, trans to the chloride and dimethyl sulfoxide ligands, respectively, are 2.292(1), 2.313(2) �. Ruthenium-sulfur (dmso) is 2.380(2) �, while the ruthenium-carbon(CO) is c. 1.72 �. For cis-[Ru(CO)2Cl2(opmpa)] (2) (opmpa ≡ (�)-ortho-phenylenebis{methyl(phenyl)- arsine}, [o-C6H4(AsMePh)2]), refinement led to a residual of 0.036 for 2423 independent 'observed' reflections. Crystals are monoclinic, P21/c, a 10.497(3), b 11.586(7), c 20.341(9) �, β 105.31(4)�, Z 4. Ruthenium-arsine distances, trans to carbonyl and chlorine ligands, respectively, are 2.404(1), 2.455(1) �. Ruthenium-chlorine distances, trans to arsine and carbonyl ligands, respectively, are 2.443(3), 2.433(2) �, while ruthenium-carbon(CO) distances, trans to arsine and chlorine ligands, respectively, are 1 .920(8), 1 .872(8) �.

Structural studies in the ruthenium(II)/(±)-ortho-Phenylenebis{methyl(phenyl)-phosphine/arsine) system. II. Crystal structure of trans-Dichloro[(±)-ortho-phenylenebis{methyl(phenyl)-phosphine}][(±)-ortho-phenylenebis(methyl(pheny1)-phosphine) P-oxide]ruthenium(II)

1983 ◽  
Vol 36 (2) ◽  
pp. 267 ◽  
Author(s):  
SR Hall ◽  
BW Skelton ◽  
AH White
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Diffraction Study ◽  
Crystal And Molecular Structure ◽  
Title Complex ◽  
Structural Studies ◽  
X Ray Diffraction ◽  
X Ray ◽  
Oxygen Distance ◽  
Methyl Phenyl

The crystal and molecular structure of the title complex, trans-[RuCl2{(�)-o-C5H4(PMePh)2}{(�)- o-C5H4(PMePh)(P(O)MePh)}], has been established by a single-crystal X-ray diffraction study at 295(1) K, being refined to a residual of 0.037 for 2669 independent 'observed' reflections. Crystals are orthorhombic, P212121, a 16.655(5), b 15.805(4), c 14.823(8) �, Z 4. The chlorine atoms lie trans to each other in the coordination sphere of the six-coordinate ruthenium, with the O-C6H4(PMePh)2 and o-C6H4(PMePh)(P(O)MePh) ligands being P,P? and O,P' bidentate respectively. The ruthenium-chlorine distances are 2.434(2) and 2.425(2) �; the two mutually trans ruthenium- phosphine distances are 2.310(3) and 2.346(2) �, but that which is trans to the oxygen is unusually short, being 2 219(2) �. The ruthenium-oxygen distance is 2.166(5)�.

The crystal and molecular structure of tris(pentamethylenedithiocarbamate) chromium(III)-chloroform (1 : 2)

1981 ◽  
Vol 46 (1) ◽  
pp. 6-19 ◽  
Author(s):  
Viktor Kettman ◽  
Ján Garaj ◽  
Jaroslav Majer
Keyword(s):  
Molecular Structure ◽  
Structural Analysis ◽  
Crystal And Molecular Structure ◽  
Analysis Method ◽  
Complex Molecules ◽  
Coordination Polyhedra ◽  
X Ray ◽  
Cell Dimensions ◽  
Crustal Density ◽  
Unit Cell Dimensions

The crystal and molecular structure of [Cr(S2CN(CH2)5)3].2 CHCl3 was found by the X-ray structural analysis method. The value R 0.090 was found for 1 131 observed independent reflections. The substance crystallizes in a space group of symmetry P212121 with the following unit cell dimensions: a = 0.8675 (6), b = 1.815(2), c = 2.155(3) nm. The experimentally observed crustal density was 1.48 Mgm-3 and the value calculated for Z = 4 was 1.51 Mgm-3. The CrS6 coordination polyhedron has the shape of a trigonally distorted octahedron, where the D3 symmetry is a approximately retained. The degree of trigonal distortion expressed as the projection of the chelate S-Cr-S angle onto the plane perpendicular to the C3 pseudo axis is Φ = 41.7° (Φ = 60° for an octahedron). The skeleton of the structure formed by the complex molecules contains channels filled with chloroform molecules. The specific type of complex-chloroform interaction consists of the formation of hydrogen bonds of the chloroform protons with the fully occupied pπ-orbitals of the sulphur atoms in the coordination polyhedra. The low stability and crystal decomposition can be explained by loss of chloroform from the channels.

scholarly journals Structural Characterization of Heterodinuclear ZnII-LnIII Complexes (Ln = Pr, Nd) with a Ring-Contracted H2valdien-Derived Schiff Base Ligand

2021 ◽  
Author(s):  
Shabana Noor ◽  
Richard Goddard ◽  
Fehmeeda Khatoon ◽  
Sarvendra Kumar ◽  
Rüdiger W. Seidel
Keyword(s):  
Molecular Structure ◽  
Schiff Base ◽  
Structural Characterization ◽  
Schiff Base Ligand ◽  
Crystal And Molecular Structure ◽  
X Ray ◽  
X Ray Crystallography ◽  
Imidazoline Ring

AbstractSynthesis and structural characterization of two heterodinuclear ZnII-LnIII complexes with the formula [ZnLn(HL)(µ-OAc)(NO3)2(H2O)x(MeOH)1-x]NO3 · n H2O · n MeOH [Ln = Pr (1), Nd (2)] and the crystal and molecular structure of [ZnNd(HL)(µ-OAc)(NO3)2(H2O)] [ZnNd(HL)(OAc)(NO3)2(H2O)](NO3)2 · n H2O · n MeOH (3) are reported. The asymmetrical compartmental ligand (E)-2-(1-(2-((2-hydroxy-3-methoxybenzylidene)amino)-ethyl)imidazolidin-2-yl)-6-methoxyphenol (H2L) is formed from N1,N3-bis(3-methoxysalicylidene)diethylenetriamine (H2valdien) through intramolecular aminal formation, resulting in a peripheral imidazoline ring. The structures of 1–3 were revealed by X-ray crystallography. The smaller ZnII ion occupies the inner N2O2 compartment of the ligand, whereas the larger and more oxophilic LnIII ions are found in the outer O2O2’ site. Graphic Abstract Synthesis and structural characterization of two heterodinuclear ZnII-LnIII complexes (Ln = Pr, Nd) bearing an asymmetrical compartmental ligand formed in situ from N1,N3-bis(3-methoxysalicylidene)diethylenetriamine (H2valdien) through intramolecular aminal formation are reported.

Crystal and molecular structure of diorganoammonium oxalatotrimethylstannate, [R2NH2][Me3Sn(C2O4)] (R=i-Bu, cyclohexyl)

2011 ◽  
Vol 34 (5-6) ◽  
pp. 127-130 ◽  
Author(s):  
Yaya Sow ◽  
Libasse Diop ◽  
Kieran C. Molloy ◽  
Gabrielle Kociok-Köhn
Keyword(s):  
Molecular Structure ◽  
Hydrogen Bonds ◽  
Diffraction Study ◽  
Crystal And Molecular Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Trigonal Bipyramidal ◽  
Trans Complex ◽  
A Chain ◽  
Distorted Trigonal Bipyramidal

Abstract The title compounds [R2NH2][C2O4SnMe3](R=i-Bu, Cy), in which tin atoms adopt a distorted trigonal bipyramidal configuration, have been prepared and submitted to an X-ray diffraction study. These compounds have been obtained from the reaction of (Cy2NH2)2C2O4·H2O or (i-Bu2NH2)2C2O4 with SnMe3Cl. In both [R2NH2][C2O4SnMe3] compounds, the trans complex has an almost regular trigonal bipyramidal geometry around the tin atom. The SnMe3 residues are connected as a chain with bridging oxalate anions in a trans-SnC3O2 framework, the oxygen atoms being in axial positions. The cations connect linear adjacent chains through NH…O hydrogen bonds giving layered structures.

Chalkogenolat-Ionen und ihre Derivate, V Kristall- und Molekülstruktur von 2.8-Dimethyldibenzo [c.g] [1.2.5.6] tetrathiacyclooktadien, einem Oxidationsprodukt von 4-Methylbenzol-1.2-dithiol/Chalcogenolates and their Derivatives, V Crystal and Molecular Structure of 2.8-Dimethyldibenzo[c,g][1,2,5,6]tetrathiaocin, an Oxidation Product of 4-Methylbenzene-1,2-dithiol

1979 ◽  
Vol 34 (1) ◽  
pp. 48-51 ◽  
Author(s):  
Jürgen Kopf ◽  
Klaus von Deuten ◽  
Bahman Nakhdjavan ◽  
Günter Klar
Keyword(s):  
Molecular Structure ◽  
Dihedral Angle ◽  
Oxidation Product ◽  
Crystal And Molecular Structure ◽  
X Ray ◽  
The Mean ◽  
Ray Methods ◽  
Anti Form

Abstract The structure of 2,8-dimethyldibenzo[c,g][1,2,5,6]tetrathiaocin (1b) has been determined by X-ray methods and discussed in connection with the preferred conformations of diaryl disulfides. The compound has the anti-form I. The SS-distance is 205.8 pm, the mean CSS-angle 104.1°, and the CSS/SSC-dihedral angle 111.1°.

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