The effect of hydrogen bonding on the amide group vibrational spectra has traditionally been rationalized by invoking a resonance model where hydrogen bonding impacts the amide functional group by stabilizing its [(-)O-C=NH (+)] structure over the [O=C-NH] structure. However, Triggs and Valentini's UV-Raman study of solvation and hydrogen bonding effects on epsilon-caprolactum, N, N-dimethylace...

The dielectric relaxation time (τ ) of binary mixtures of different molar concentrations of pyridine (C5H5N) and N, Ndimethylacetamide (DMA) in benzene solution has been calculated by using standard microwave techniques and Gopala Krishna's [Trans Farad Soc, 33 (1957) 767.] single frequency (9.875 GHz) concentration variational method at different temperatures (25, 30, 35 and 40°C). It is found...

Discuss here is a kind of novel Dy-based Metal Organic Frameworks (MOF) material, ((Dy(H2O)(PBA) (SO4))(DMA)2(H2NC2H6))n(1 H2PBA=4-Hydroxybenzoic acid; the DMA=N,N-Dimethylacetamide), from the solvothermal synthesis conditions and using sulfuric acid as the PH controller and template. The X-ray studies shown that 1 is a 3D two-fold interpenetrated MOF built up from 1D-Dy (III) ribbon chains and...

Thin films (100-250 A) of several phthalocyanines (MgPc, ZnPc, AICIPc, TiOPc, CoPc, FePc, H2Pc) were investigated as sensitizers for photoelectrochemical processes at n-type Ti02 and W 0 3 single crystal electrodes in aqueous solution. The sensitized oxidation of several solution species (I-, Fe(CN)64-, hydroquinone, Fe(I1)-EDTA) occurred with photocurrents proportional to light intensity and s...

OBJECTIVES N,N-Dimethylacetamide (DMAC) is widely used in industry as a solvent. It can be absorbed through human skin. Therefore, it is necessary to determine exposure to DMAC via biological monitoring. However, the precision of traditional gas chromatography (GC) is low due to the thermal decomposition of metabolites in the high-temperature GC injection port. To overcome this problem, we have...

Density and Speed of sound have been measured for pure components such furan, (DMF) 2-5-dimethylfuran, MDEA (n-methyldiethanolamine), DEG (diethylene glycol), TEG (triethylene DMA (dimethylacetamide) using Anton Paar (DSA-5000) vibrating U-tube densitometer in a temperature range 278.15 to 343.15 K ambient pressure (100 kPa). density speed furan + MDEA, DEG, TEG, 303.15 whereas DMF DMA, the is ...