scholarly journals Study of the Reactions of Chromium(III) Halides and Heterocyclic Ligands Containing Group VA and VIA Donor Atoms

1974 ◽  
Vol 52 (16) ◽  
pp. 2845-2850 ◽  
Author(s):  
C. Preti ◽  
G. Tosi
Keyword(s):  
Electronic Spectroscopy ◽  
Far Infrared ◽  
Conductivity Measurements ◽  
Heterocyclic Ligands ◽  
Spectroscopic Parameters

Complexes of thiomorpholin-3-one, thiomorpholin-3-thione, thiazolidine-2-thione, and thiazolidine-2-selenone with CrX3•nH2O (X = Cl, Br, I) were prepared and characterized. On the basis of vibrational (conventional and far infrared) and electronic spectroscopy, magnetism and conductivity measurements, the structures of these complexes were identified. The bonding occurs through the oxygen in the complexes of thiomorpholin-3-one and through the nitrogen in all the remaining complexes. The complexes crL3x3 involve unidentate ligands, are neutral, monomeric, and hexacoordinate. Spectroscopic parameters for the complexes have been calculated and compared with similar chromophores containing CrN3X3, CrO3X3, and CrS3X3 chromophores.

Complexes of Cobalt(II), Nickel(II), And Copper Acetates, Perchlorates, and Tetrafluoroborates with Heterocyclic Ligands Containing Va and Via Group Donor Atoms

1975 ◽  
Vol 53 (2) ◽  
pp. 177-185 ◽  
Author(s):  
C. Preti ◽  
G. Tosi
Keyword(s):  
Infrared Spectroscopy ◽  
Metal Ion ◽  
Electronic Spectroscopy ◽  
Far Infrared ◽  
Heterocyclic Ligands ◽  
Free Ions ◽  
Nitrogen Donor ◽  
Molecular Conductance ◽  
Far Infrared Spectra ◽  
Metal Ligand

Cobalt(II), nickel(II), copper(II), and copper(I) acetate, perchlorate, and tetrafluoroborate complexes with thiazolidine-2-thione, thiomorpholin-3-one, and thiomorpholin-3-thione have been prepared. On the basis of infrared and far infrared spectra, electronic spectroscopy, magnetism, and molecular conductance, the stereochemistries of these complexes were identified. Assignments for the metal–ligand modes have also been made. By the use of infrared spectroscopy it has been possible to distinguish whether or not the polyanions present in the complexes are coordinated to the transition metal ion or are present as free ions. Spectroscopic parameters for the complexes have been calculated and compared with similar chromophores containing sulfur, oxygen, and nitrogen donor atoms.

N,N′-Bis(phenylaminomethyl)parabanic add as a complexing agent. Complexes of some bivalent first row transition metals

1977 ◽  
Vol 55 (2) ◽  
pp. 344-349 ◽  
Author(s):  
Antonio Costantino Fabretti ◽  
Gian Carlo Franchini ◽  
Carlo Preti ◽  
Giuseppe Tosi
Keyword(s):  
Nmr Spectra ◽  
Far Infrared ◽  
Complexing Agent ◽  
Ligand Field ◽  
Conductivity Measurements ◽  
B Values ◽  
Nitrogen Bonds ◽  
Ligand Field Parameters ◽  
Far Infrared Spectra ◽  
Metal Ligand

The preparation of some complexes of N,N′-bis(phenylaminomethyl)parabanic acid with halides of cobalt(II), nickel(II), and copper(II) is reported. The complexes of the type MLX2 seem to have pseudo-tetrahedral and pseudo-octahedral symmetry. The complexes have been studied by means of magnetic susceptibility measurements, infrared and far infrared spectra, electronic and nmr spectra, and conductivity measurements. The ligand behaves as bidentate N-bonded. The various ligand field parameters, Dq, B', and β have been evaluated. The B' values suggest a strong covalency in the metal–ligand σ bond and Dq values show a medium strong ligand field. The presence of metal–nitrogen bonds is suggested. The possible stereochemistries of the complexes are discussed in the light of the experimental results.

Darstellung und spektroskopische Charakterisierung von Natriumpentacyano(phosphan/phosphit)ferraten(III) / Preparation and Spectroscopic Characterization of Sodium Pentacyano(phosphane/phosphite)ferrates(III)

2001 ◽  
Vol 56 (1) ◽  
pp. 9-12
Author(s):  
Hidenari Inoue ◽  
Satomi Osone ◽  
Ekkehard Fluck
Keyword(s):  
Linear Correlation ◽  
Electronic Spectroscopy ◽  
Spectroscopic Characterization ◽  
Phosphorus Ligands ◽  
Spectroscopic Parameters ◽  
Back Bonding ◽  
Donor Capability

Abstract Sodium pentacyanoferrates(III) of the type Na2[Fe(CN)5L] (L = phosphane or phosphite) have been prepared from sodium pentacyanoferrates(II), Na3[Fe(CN)5L], by bromine oxidation and characterized by Mössbauer, IR, and electronic spectroscopy. Isomer shifts and quadrupole splittings lie within the range commonly found in low-spin iron(III) complexes. A linear correlation was found between isomer shifts and CN stretching and Fe-CN bending frequencies, respectively. The spectroscopic parameters show that the dπ-dπ back bonding of the Fe-P bonds is synergetically strengthened with increasing σ donor capability of the phosphorus ligands.

Mono- and Di-deuterated Ammonias: Far-Infrared Spectra and Spectroscopic Parameters in the Ground State

2022 ◽  
pp. 111581
Author(s):  
Elisabetta Canè ◽  
Gianfranco Di Lonardo ◽  
Luciano Fusina ◽  
Filippo Tamassia ◽  
Adriana Predoi-Cross
Keyword(s):  
Infrared Spectra ◽  
Ground State ◽  
Far Infrared ◽  
Spectroscopic Parameters ◽  
Far Infrared Spectra

scholarly journals Synthesis and Characterization of the Adducts of Bis(O-ethyldithiocarbonato)copper(II) with Substituted Pyridines

2013 ◽  
Vol 2013 ◽  
pp. 1-4
Author(s):  
Gurpreet Kour ◽  
Inderjeet Kour ◽  
Renu Sachar
Keyword(s):  
Unpaired Electron ◽  
Room Temperature ◽  
Magnetic Moments ◽  
Electronic Spectroscopy ◽  
Synthesis And Characterization ◽  
Conductivity Measurements ◽  
Pyramidal Geometry ◽  
Substituted Pyridines ◽  
Square Pyramidal Geometry

Monomeric five coordinated adducts of bis(O-ethyldithiocarbonato)copper(II) of general formula [Cu(C2H5OCS2)2(L)], [L = 2-, 3-, 4-methylpyridines and 2-, 3-, 4-ethylpyridines] have been synthesized and characterized by elemental analysis, i.r. and electronic spectroscopy, magnetic and conductivity measurements. Analytical results show that the adducts have 1 : 1 stoichiometry. The adducts were found to be paramagnetic and their magnetic moments at room temperature lie within the 1.81–1.94 B.M. range and this indicates the presence of one unpaired electron. All the adducts have distorted square pyramidal geometry.

scholarly journals The template synthesis, spectral characterization and thermal behavior of new binuclear Schiff base complexes derived from N-aminopyrimidine with 2,3-butandion

2007 ◽  
Vol 72 (3) ◽  
pp. 259-264 ◽  
Author(s):  
Mehmet Sönmez ◽  
Memet Şekerci
Keyword(s):  
Schiff Base ◽  
Thermal Behavior ◽  
Thermal Behaviour ◽  
Template Synthesis ◽  
Magnetic Measurements ◽  
Magnetic Moments ◽  
Electronic Spectroscopy ◽  
Schiff Base Complexes ◽  
Conductivity Measurements ◽  
Elemental Analyses

Anew series of two types of acyclic binuclear Schiff base complexes, prepared by the template condensation of N-aminopyrimidine and 2,3-butandion in the presence of Cu(II), Ni(II), Co(II) and Zn(II) in n-BuOH solution, were analyzed and characterized by elemental analyses, IR and electronic spectroscopy, conductivity and magnetic measurements. From the conductivity measurements, it is concluded that the complex of NiII is a 1:1 type of electrolyte. All the complexes have sub-normal magnetic moments in accordance with their binuclear nature. The thermal behaviour of the complexes was studied by thermogravimetry.

Far-infrared spectra and spectroscopic parameters of NH2D and ND2H in the ground state

1988 ◽  
Vol 127 (1) ◽  
pp. 240-254 ◽  
Author(s):  
L. Fusina ◽  
G. Di Lonardo ◽  
J.W.C. Johns ◽  
L. Halonen
Keyword(s):  
Infrared Spectra ◽  
Ground State ◽  
Far Infrared ◽  
Spectroscopic Parameters ◽  
Far Infrared Spectra

Non-periodic local motion of silver ions in ßAg3SI from far-infrared conductivity measurements

1981 ◽  
Vol 2 (4) ◽  
pp. 341-346 ◽  
Author(s):  
B GRAS ◽  
K FUNKE
Keyword(s):  
Silver Ions ◽  
Far Infrared ◽  
Conductivity Measurements ◽  
Local Motion

Far-infrared spectra and ground state spectroscopic parameters of 15NH2D

2014 ◽  
Vol 301 ◽  
pp. 13-14 ◽  
Author(s):  
Adriana Predoi-Cross ◽  
Hoimonti Rosario ◽  
Gianfranco Di Lonardo ◽  
Luciano Fusina ◽  
Filippo Tamassia
Keyword(s):  
Infrared Spectra ◽  
Ground State ◽  
Far Infrared ◽  
Spectroscopic Parameters ◽  
Far Infrared Spectra

The far-infrared spectrum and spectroscopic parameters of PH3 in the ground state

1988 ◽  
Vol 130 (2) ◽  
pp. 371-381 ◽  
Author(s):  
L. Fusina ◽  
M. Carlotti
Keyword(s):  
Infrared Spectrum ◽  
Ground State ◽  
Far Infrared ◽  
Spectroscopic Parameters
Sign in / Sign up

Export Citation Format

Share Document