X-ray ? Electronic spectra of rhenium complexes with nitrogen-containing ligands

1971 ◽  
Vol 20 (8) ◽  
pp. 1748-1748
Author(s):  
V. I. Nefedov ◽  
I. A. Zakharova ◽  
M. A. Porai-Koshits ◽  
M. E. Dyatkina
Keyword(s):  
Electronic Spectra ◽  
Rhenium Complexes ◽  
X Ray

Selective metal to carbon bond formation in the synthesis of the first rhenium complexes with S2CPCy3 ligands. X-ray structures of [MnRe(CO)6(.mu.-S2CPCy3)] and [Re2(CO)8(.mu.-S2CPCy3)]

1991 ◽  
Vol 10 (2) ◽  
pp. 384-387 ◽  
Author(s):  
Bernardo. Alvarez ◽  
Daniel. Miguel ◽  
Victor. Riera ◽  
Jesus A. Miguel ◽  
Santiago. Garcia-Granda
Keyword(s):  
Bond Formation ◽  
Rhenium Complexes ◽  
Carbon Bond ◽  
X Ray

Experimental and computational structural study of two hindered aminoanthraquinones in crystals and solutions

2000 ◽  
Vol 215 (9) ◽  
Author(s):  
A.V. Yatsenko ◽  
K.A. Paseshnichenko ◽  
S.I. Popov
Keyword(s):  
Solid State ◽  
Single Crystal ◽  
Electronic Spectra ◽  
Molecular Structures ◽  
Amino Group ◽  
Single Crystal Diffraction ◽  
Molecular Conformations ◽  
X Ray ◽  
Crystal And Molecular Structures ◽  
Visible Spectra

The crystal and molecular structures of 2-methyl-1-methylamino-anthraquinone (I) and 1-methylphenylamino-anthraquinone (II) were studied by the X-ray single-crystal diffraction and the visible spectra of crystalline specimens and their solutions were recorded. The molecule I is closely planar, whereas in the molecule II the amino group is 58° rotated out of the plane of the anthraquinone skeleton. In both structures the molecules pack in stacks. The comparison of experimental and calculated (on the DFT and AM1 levels) molecular structures, together with the comparison of experimental and INDO/S-calculated electronic spectra, give the evidence that molecular conformations (especially for II) change upon transfer from the solid state to solutions, and the π-delocalisation throughout the whole molecule enhances in the solid state.

Intermolecular interactions and electronic properties in phosphino-(oligothiophene) palladium(II) and platinum(II) complexes

2007 ◽  
Vol 85 (5) ◽  
pp. 383-391 ◽  
Author(s):  
Tracey L Stott ◽  
Michael O Wolf ◽  
Brian O Patrick
Keyword(s):  
Solid State ◽  
Metal Complexes ◽  
Electronic Properties ◽  
Crystal Structures ◽  
Structural Properties ◽  
Absorption Spectra ◽  
Intermolecular Interactions ◽  
Electronic Spectra ◽  
X Ray ◽  
Π Stacking

A series of Pt(II) and Pd(II) complexes containing diphenylphosphino-substituted oligothiophene ligands ranging from 1 to 3 thiophene rings in length have been prepared. Crystal structures of four of these complexes were determined via single X-ray crystal diffraction and the solid-state packing arrangements found to vary with both the metal and the thiophene-containing ligand. In some cases, π-stacking between thiophene rings are found for the oligothiophene ligands. Solution and solid-state absorption spectra of these complexes are reported.Key words: oligothiophenes, metal complexes, structural properties, electronic spectra.

New coordination polymers of glyoxal bis(2-hydroxyanil)

1995 ◽  
Vol 7 (4) ◽  
pp. 433-441 ◽  
Author(s):  
Salah A EI-Shatoury
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Metal Ions ◽  
Coordination Polymers ◽  
Elemental Analysis ◽  
Electronic Spectra ◽  
Metal Content ◽  
X Ray ◽  
Dsc Analyses ◽  
Scanning Electron

Coordination polymers of [2,2'-(ethandiylidenedinitrilo) diphenol) have been prepared with the metal ions Cu(II), Ni(1I) and Cr(III). They were characterized by elemental analysis, IR and electronic spectra. The metal content in all polymers was found to be consistent with a 1:1 (metal:ligand) stoichiometry. The thermal behaviour of these coordination polymers has been studied by thermogravimetric and DSC analyses in air up to 500 C. The crystallinity of the formed polymers was determined by x-ray analysis. The morphological structures of these polymers were determined by scanning electron microscopy.

Luminescent Low-Valent Rhenium Complexes with 1,2-Bis(dialkylphosphino)ethane Ligands. Synthesis and X-ray Crystallographic, Electrochemical, and Spectroscopic Characterization

2010 ◽  
Vol 49 (8) ◽  
pp. 3857-3865 ◽  
Author(s):  
Stephania J. Messersmith ◽  
Kristin Kirschbaum ◽  
Jon R. Kirchhoff
Keyword(s):  
Spectroscopic Characterization ◽  
Rhenium Complexes ◽  
X Ray ◽  
Low Valent
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