As with the Raman spectra of nitroethylenes, the IR intensity of the symmetric NO 2 stretching is enhanced by conjugation, and the antisymmetric and symmetric stretching bands in the IR spectra are found to be similar in peak intensity.Daimay Lin-Vien...
IR spectra were measured on a Nicolet 380 FT-IR spectrometer on neat samples placed between KBr plates. The EPR spectra were obtained with a Bruker A300 Synthesis of derivatives In order to obtain more effective radioprotective agents, RES derivatives, which all or each single hydroxyl group were...
(Bruker AVANCE 300) nuclear magnetic resonance spectrometer. Chemical shifts for1H NMR and13C NMR spectra are given with respect to external (CH3)4Si (1H and13C). [D6] DMSO was used as a locking solvent unless otherwise stated. IR spectra were recorded using KBr pellets with an FT-IR ...
The XRD spectra were obtained using a D8 powder diffractometer, which was used to characterize the change in the crystallinity. The diffractometer used Cu Kα radiation, a 30 kV tube voltage, a tubecurrent of 20 mA, a scanning speed of 5°/min, and a scanning range of 2θ = ...
The Fourier-transform Raman (FT-Raman) and infrared (FT-IR) spectra of 2-nitro-tetraphenylporphyrin (2-NO 2-TPP), nickel-2-nitro-tetraphenylporphyrin (Ni-2-NO 2-TPP), zinc-2-nitro-tetraphenylporphyrin (Zn-2-NO 2-TPP) and copper-2-nitro-tetraphenylporphyrin (Cu-2-NO 2-TPP) were acq...
IR and Raman spectra (organic substancesLow frequency Raman spectra of oriented single crystals ofN‐nitrodimethylamine and its perdeuterated derivative have been recorded using polarized light. The observed frequencies have been assigned to the different symmetry species of the unit‐cell factor group. ...
Their IR spectra were obtained and assigned by vibrational analysis, which are reliable compared with the experimental results. Based on the frequencies scaled by 0.96 and the principle of statistic thermodynamics, the thermodynamic properties were evaluated, which are linearly related with the number ...
propanenitriles cyclic nitronate HRESI +-MS spectroscopy IR spectra 1H NMR spectra single-crystal X-ray diffraction/ A8230L Decomposition reactions (pyrolysis, dissociation, and group ejection) A8280D Electromagnetic radiation spectrometry (chemical analysis) A8280M Mass spectrometry (chemical analysis)...
As the 13C NMR spectrum showed only one carbonyl group at d 170.7 (170.5 for the minor isomer) instead of two as in 1aÀc, the additional signal at d 149.3 (minor 149.7) in 1e must be due to an oxime. The satellite peaks in the 1H and 13C NMR spectra may indicate E/Z ...
The FT-IR spectra of nCT-DNA, 4-Cl-OPD-DNA, NO-DNA, and 4-Cl-OPD-NO-DNA were determined on a Perkin-Elmer Spectrum Two FTIR spectrometer (USA). The spectrum was recorded in the wavelength range of 1800–800 cm-1to cover the major absorption bands of DNA84,85. Around 10 μl of...