Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Guenter Grampp"'
High-Pressure ESR Spectroscopy: On the Rotational Motion of Spin Probes in Pressurized Ionic Liquids
Publikováno v:
The Journal of Physical Chemistry B. 126:906-911
We report high-pressure (up to 50 MPa) ESR-spectroscopic investigations on the rotational correlation times of the nitroxide radicals 2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPO), 4-hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPOL), and 4-amino-2
Publikováno v:
Sains Malaysiana. 46:1369-1377
Chlorophyll a is known as the prevailing light absorbing pigment giving a strong absorption and fluorescence emission in visible region. Quenching reactions of the chlorophyll a fluorescence by Fe(acac)3 were precisely investigated in various organic
Publikováno v:
Applied Magnetic Resonance. 46:1359-1366
A flexible long-chain nitroxide biradical of the structure R6–(CH2)2OOC–(CH2)8–COO–(CH2)2–R6, 1, where –R6 is the 1-oxyl-2,2,6,6-tetramethylpiperidine-4-yl residue, has been investigated by X-band electron paramagnetic resonance spectrosc
Autor:
Jian Tang, Li-Jun Wang, Xuezheng Liang, Yun Liu, Yongmiao Shen, Guenter Grampp, Fei-Fei Tao, Bing-Xiang Wang, Huiquan Xiao
Publikováno v:
The Journal of Organic Chemistry. 80:2724-2732
Surface-modified titanium dioxides by highly dispersed NiO particles have an extended absorption in the visible light region and a reduced hole-electron pair recombination than unmodified TiO2. They have now been successfully applied as highly active
Autor:
Xue-Zheng Liang, Jian Tang, Guenter Grampp, Fei-Fei Tao, Fang Li, Bing-Xiang Wang, Yongmiao Shen, Jia-Jun Yue, Jian-Hua Xu
Publikováno v:
The Journal of Organic Chemistry. 79:7572-7582
A new photoinduced three-component reaction between a cyanoarene, an alkene and an N-protected pyrrole has been developed. This reaction extended the scope of the photo-NOCAS reaction by introducing pyrrole as a neutral carbon-centered nucleophile. T
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 271:85-92
Photoinduced reactions of 4,5,6,7-tetrahalophthalimides (1a–1h) with selected N-vinyllactams (N-vinylpyrrolidinone, N-vinylcaprolactam) and methylthiazoles respectively lead to dehydrohalogenative coupling reactions between the phthalimide and thes
Publikováno v:
ECS Transactions. 53:17-25
The work describes the use of cyclic voltammetry to investigate the proton coupled electron transfer (PCET) pathways for oxidation of thymine in water. Biologically important compounds like DNA bases, and amino acids showed irreversible behavior when
Publikováno v:
ACS Applied Materials & Interfaces. 2:1879-1883
Thermal and UV degradation of four common space-grade polymer films have been studied in situ using electron spin resonance (ESR) spectroscopy. By recording subsequent spectra at a sufficient rate,...
Publikováno v:
European Journal of Organic Chemistry. 2007:3718-3726
Indolizino[3,4,5-ab]isoindoles 3a–3k have been synthesized by [8+2] cycloaddition reactions of the corresponding indolizines 2a–2k with benzyne in moderate yields. Cycloadditions of pyrrolo[2,1-a]isoquinolines 4a–4c with benzyne gave the benzo[
Autor:
Yun Liu, Yongmiao Shen, Fei-Fei Tao, Xuezheng Liang, Huiquan Xiao, Guenter Grampp, Jian Tang, Li-Jun Wang, Bing-Xiang Wang
Publikováno v:
ChemInform. 46
Surface-modified titanium dioxides by highly dispersed NiO particles have an extended absorption in the visible light region and a reduced hole–electron pair recombination than unmodified TiO2. They have now been successfully applied as highly acti