Noun1.benzene ring- a closed chain of 6 carbon atoms with hydrogen atoms attached benzene formula,benzene nucleus,Kekule formula benzene,benzine,benzol- a colorless liquid hydrocarbon; highly inflammable; carcinogenic; the simplest of the aromatic compounds ...
Luz, Dynamic carbon-13 MAS NMR: application to benzene ring flips in polyaryl ethers, Solid State Nucl. Magn. Reson. 18 (2000) 17-36, http://dx.doi.org/10.1006/snmr.2000.0008.D. Reichert, G. Hempel, H. Zimmermann, H. Schneider, Z. Luz, Solid State Nucl. Magn. Reson. 18 , 17...
Benzene is a widely used commodity chemical, which is currently produced from fossil resources. Lignin, a waste from lignocellulosic biomass industry, is the most abundant renewable source of benzene ring in nature. Efficient production of benzene from lignin, which requires total transformation of Cs...
If the part of the Y substituent with a large diamagnetic anisotropy effect (e.g., a C O group) moves in the vicinity of the C3 carbon atom, as in series I, then the C3 chemical shift can be described by a two-variable equation of 13C NMR substituent chemical shifts with zm, and...
摘要 In this paper the calculation for 13 C NMR chemical shift of Benzene Ring is reported in flavonoids as flavone, flava... 关键词C NMR chemical shift / Flavonoids / Flavone / Flavanone / Flavonol / Flavanonol / Flavane / Isoflavone / Isoflavanone ...
71-43-2 NMR Specturm 71-43-2 Mass 71-43-2 IR : liquid film 71-43-2 Raman : 4880 A,100M,liquid 71-43-2 ESR : ANION RADICAL, REDUCTION WITH K-NA IN THF-DME 71-43-2 ESR : UV IRRAD. OF HSI(CH3)3/C6H6/DTBPO(1:5:1) 71-43-2 13C NMR : in CDCl3 71-43-2...
The 13C NMR spectra of forty-six cyclic dithioacetals and their derivatives have been studied. A set of shift parameters was established for each of these heterocycles as substituent. Based on the Hammett type correlation for substituted benzenes, the σP +values of cyclic dithioacetal groups ...
The splittings of the low temperature NMR spectra display association processes of the lithiumorganophosphides passing slowly on the NMR time scale relatively to the coupling constants. In solvents with high dielectric constants monomer contact ion pairs dominate. In solvents with mediate dielectric ...
tert-Amylbenzene, with the chemical formula C11H16 and CAS registry number 2049-95-8, is a compound known for its applications in various industries. This colorless liquid, also referred to as 1,1-dimethylpropylbenzene, is characterized by its tert-amyl group attached to a benzene ring. ...
C Mang,C Liu,J Zhou,... - 《Chemical Physics Letters》 被引量: 22发表: 2007年 Theoretical calculations on C30H12 bowl‐shaped hydrocarbons: NMR shielding constants, stability, and aromaticity Density Functional Theory (DFT) calculations at the B3LYP/6-31G* level have been performed on four...