Molecular orbital and DFT studies of the alimemazine radical cationResearch on Chemical Intermediates - Tập 26 - Trang 739-745 - 2000
Ke-Sheng Song, Lei Liu, Chen -Rui Hou, Xiao -Song Li, Qing -Xiang Guo
Semiempirical molecular orbital methods including CNDO, MNDO, AM1 and PM3, and density function theory method B3LYP/3-21G(d) were employed in the study of the alimemazine radical cation. It was found that PM3 was much better than CNDO, MNDO and AM1 in the structural optimization. The bond lengths and bond angles by PM3 were close to the experimental data, and comparable with the results by the den...... hiện toàn bộ
An efficient method for synthesis of 3-arylbenzo[f]quinoline-1,2-dicarboxylates catalyzed by SnCl2Research on Chemical Intermediates - Tập 41 - Trang 6967-6974 - 2014
Qing Yan, Hongjun Zang, Jiaxuan Feng, Mingguang Li, Danni Yang, Hai Lu, Bowen Cheng
A wide variety of 3-arylbenzo[f]quinoline-1,2-dicarboxylates and their dehydro derivatives have been synthesized by one-pot, three-component reaction of an aromatic aldehyde, naphthalene-2-amine, and dimethyl but-2-ynedioate in the presence of SnCl2 under reflux in acetonitrile. This procedure has several advantages, for example high yield, short reaction time, easy work-up, little pollution, and ...... hiện toàn bộ
Oxidation-induced catalytic performance of heterostructured Ni-TiO2 nanoparticles and formation of Leuco-Methylene blueResearch on Chemical Intermediates - Tập 48 - Trang 4475-4501 - 2022
Kazi Hasibur Rahman, Asit Kumar Kar, Kuan-Chung Chen
Ni-TiO2 catalysts have been successfully developed by simple sol–gel techniques with variations in Ni2+ concentration. The reduced bandgap suggests the appearance of the intragap various localized defect states and oxygen vacancies. The formation of oxygen vacancies and its effect on photocatalysis with the presence of the colour centres (F, F+, F++) in the photocatalytic mechanism by replacement ...... hiện toàn bộ
Synthesis and characterization of Mg–M (M: Al, Fe, Cr) layered double hydroxides and their application in the hydrogenation of benzaldehydeResearch on Chemical Intermediates - Tập 40 - Trang 931-946 - 2013
H. Zazoua, A. Saadi, K. Bachari, D. Halliche, C. Rabia
Layered double hydroxides or hydrotalcite-like compounds with different kinds of metal ions (Mg–Al, Mg–Fe and Mg–Cr) in the brucite-like sheets were prepared by a co-precipitation method with Mg/M3+ molar ratio of ~2. The hydrotalcites were characterized by chemical analysis, X-ray diffraction, Fourier transform infrared spectroscopy, temperature programmed reduction, SEM microscopy, and specific ...... hiện toàn bộ