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81.
Pessoa-Mahana H Núñez CU Araya-Maturana R Barría CS Zapata-Torres G Pessoa-Mahana CD Iturriaga-Vasquez P Mella-Raipán J Reyes-Parada M Celis-Barros C 《Chemical & pharmaceutical bulletin》2012,60(5):632-638
A series of 3-[3-(4-aryl-1-piperazinyl)-propyl]-1H-indole derivatives (12a-h) was synthesized and evaluated for binding affinity at the human 5-hydroxytryptamine(1A) receptor (5-HT(1A)R) compounds (12b) and (12h) showed the highest 5-HT(1A) receptor affinity (IC(50)=15 nM). Molecular docking studies with all the compounds in a homology model of 5-HT(1A) showed that the main interaction anchoring the ligand in the receptor was a charge-reinforced bond between the protonated nitrogen atom (N-4) of the piperazine ring and Aspartate(3.32). 相似文献
82.
1 INTRODUCTION Organic-inorganic hybrid materials and polyoxo-metalates have received much attention because of their intriguing structural diversity and potential applications in molecular adsorption, ion exchange, heterogeneous catalysis and nanotech nology as well as in electrical, magnetic and photochemical areas[1, 2]. One of the important ad- vances in the design of new organic-inorganic hybrid materials is utilizing poly- oxometalates’ coordination ability to produce poly- oxoanio… 相似文献
83.
Rivero-Santamaría A González-Martínez ML González-Lezana T Rubayo-Soneira J Bonnet L Larrégaray P 《Physical chemistry chemical physics : PCCP》2011,13(18):8136-8139
In this communication, we highlight that statistical approaches for chemical reactions describe reasonably well the low energy dynamics of the title process. Consequently, such methods prove to be valuable to compute rate constants from low to room temperatures. Results are compared with experiment and recent precise quantum wave packet calculations [J. Phys. Chem. A, 2009, 113, 5285]. 相似文献
84.
This paper reviews literature information on the behaviour of semivolatile organic compounds (SVOCs) in the indoor environment,
as well as the most likely emission sources. The consecutive stages of analytical procedures used for monitoring SVOCs in
indoor environments are described. The most common approaches used for collecting samples from the gas and particulate phases
are mentioned. The paper discusses and compares various types of sorbents and filters applied in dynamic, passive and denudational
techniques, as well as the techniques used to liberate the SVOCs, including Soxhlet, sonication and microwave extraction.
The main advantages and disadvantages of each technique are discussed, together with possible future trends. The approaches
commonly used during the final determination step, such as gas chromatography and liquid chromatography, are presented together
with their possible drawbacks, and ways of eliminating them are suggested. The review makes brief reference to the effects
of human exposure to SVOCs in house dust and discusses the main aspects of the analytical procedures used to monitor the presence
of SVOCs in this medium. 相似文献
85.
Bernhard S Barron JA Houston PL Abruña HD Ruglovksy JL Gao X Malliaras GG 《Journal of the American Chemical Society》2002,124(45):13624-13628
We have investigated the electrochemical, spectroscopic, and electroluminescent properties of a family of diimine complexes of Ru featuring various aliphatic side chains as well as a more extended pi-conjugated system. The performance of solid-state electroluminescent devices fabricated from these complexes using indium tin oxide (ITO) and gold contacts appears to be dominated by ionic space charge effects. Their electroluminescence efficiency was limited by the photoluminescence efficiency of the Ru films and not by charge injection from the contacts. The incorporation of di-tert-butyl side chains on the dipyridyl ligand was found to be the most beneficial substitution in terms of reducing self-quenching of luminescence. 相似文献
86.
The first 1,3-dipolar reaction of azomethine ylides with optically pure vinyl sulfoxide are reported. The presence of the sulfinyl group increase the reactivity of the acrylate moiety as a dipolarophile, and the reactions evolve with complete regio- and endo-selectivities. Nevertheless, mixtures of the two diastereoisomers 4 and 5 (75-88% de) resulting from the anti dipole/s-cis dipolarophile and syn dipole/s-trans dipolarophile approaches, respectively, are obtained. The stereoselectivity can be controlled by using THF or MeCN as solvents or by changing the reaction temperature in MeCN. After separation of the cycloadducts, optically pure 2,5-dihydro-1H-pyrroles are easily obtained by pyrolytic desulfinylation. 相似文献
87.
Xuexi Tie a Junji Cao b a National Center for Atmospheric Research Boulder CO USA b SKLLQG Institute of Earth Environment Chinese Academy of Sciences No. Fenghui South Road High-Tech Zone Xi’an China 《中国颗粒学报》2010,8(1)
PARTICUOLOGY regrets that the above paper was mistakenly classified as a ‘Review’ rather than an ‘Invited paper’ when originally published in volume 7, issue 6, 426–431. 相似文献
88.
89.
StructureofCytochromecandItsPlatinum┐modifiedDerivativesbyFourierTransformInfraredSpectroscopyJIANGLi-juana,SUNWei-yina,FANGJ... 相似文献
90.
ComputerHandlingofChemicalandBiologicalDataofTraditionalChineseMedicinesCHEChun-taoa**,PaulR.CarlieraandOpheliaC.W.Leeb(aDepa... 相似文献