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The infrared bands of cis - and trans -CHCH and vinyl CHCH 2 groups of 1-hexene, trans -2-hexene, trans -3-hexene, 1-heptene, trans - and cis -2-heptene and cis -3-heptene are compared spectroscopically with the bands of the analogous chemical groups in six stereospecific and...
In acid media Cu(I) and Ag(I) form complexes with planar dithiooxamides (LH 2 ) of formula M(LH 2 ) 1 X 1 . Complexes with dithiooxamide (DTO), N -methyldithiooxamide (MDTO) and N , N ′-dimethyldithiooxamide (DMTO) have been prepared. Although all complexes studied have the same formula,...
In acid media Au(III) forms complexes with dithiooxamide (DTO) of formula (Au(DTO)(DTO)-H)Cl 2 and with N , N ′-dimethyldithiooxamide (DMDTO) of formula (Au(DMDTO-H) 1 X 2 ) (X is Cl or Br) and (Au(DMDTO) 1 Br 2 )Br. In strong alkaline media for the N , N ′-disubstituted dithiooxamides a new...
Absorption spectra of the CO vibration of the monomers and dimers of acetic acid, deuterated acetic acid and propionic acid in the 1600–1950 cm −1 wavelength range were recorded. As methods, both CO laser photoacoustic spectroscopy (PAS) and simultaneous transmission measurements were...
Remote fiber optic Raman spectroscopy utilizing CCD detection and near IR diode laser excitation is used to analyze mock petroleum fuel samples with individual benzene, toulene, and ethylbenzene (BTE) concentrations ranging from 0 to 16%. Specific Raman spectral regions which contain BTE...
L'étude vibrationnelle de l'acide nonanoïque à 90 K est effectuée pour expliquer les interactions moléculaires des chaînes aliphatiques impliquées dans de nombreux systèmes biologiques constitués en partie par le groupement oléyle. En fait, les spectres de l'acide en C 9 devraient avoir...
Density functional theory (DFT) calculations (using Becke's exchange in conjunction with Lee-Yang-Parr's correlation functional (BLYP) and Becke's three-parameter hybrid DFT/HF method using Lee-Yang-Parr's correlation functional (B3LYP)) have been carried out to investigate the structure, dipole...
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