نتایج جستجو برای: halogen compounds
تعداد نتایج: 230653 فیلتر نتایج به سال:
The halogen bonding (XB) between 1,2-diiodotetrafluorobenzene (1,2-DITFB) or 1,4-diiodotetrafluorobenzene (1,4-DITFB) and the selection of different thiocarbonyl acceptors was studied by single-crystal X-ray diffraction method. Diiodotetrafluorobenzenes (DITFBs) were found to form C-I···S halogen-bonded 1:1, 2:1, 1:2 (donor/acceptor ratio) complexes with thiocarbonyls. Lengths contacts be clear...
Abstract Organolithium compounds have been used successfully in flow chemistry since the recent past. Most of studies dealt with use halogen-lithium exchanges. So far, however, there has a lack substitution reactions. The microreactors makes highly reactive organolithium more controllable and thus creates new synthetic possibilities.
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that mediates the biological action of many environmental compounds. Methyl yellow (4-dimethylaminoazobenzene; MY) is a principal azo-dye, and structurally related compounds were subjected to analysis of structure-activity relationships as AhR ligands by using a yeast AhR signaling assay. The effects of halogen-subst...
The aim of this study was to summarize the experimental information about certain physical properties chalcohalide ternary compounds such as Tl6BC4 and A2TeC6 (where A = alkali metals Tl (I); B S, Se, Te; C F, Cl, Br, I) in depending on average charge nuclei chemical elements from which these are built, well creation reasonable prognostic models based found patterns order predict corresponding ...
the effects of substituents on the symmetry and the nature of halogen bonds in [n∙∙∙x∙∙∙n]+-type systems are presented for the yc5h4n∙∙∙x∙∙∙nc5h5 (y = no2, cn, h, ch3, och3, oh, nh2, x = cl, br, i) complexes. some structural parameters, energy data and electronic properties were explored with the density functional theory (dft) calculations. in addition, electrostatic potentials were used in es...
A series of analogues of cryptolepine (1) have been synthesized and evaluated for their in vitro antiplasmodial and cytotoxic properties. The IC(50) values of several compounds (11a, 11k-m, 11o, 13) against Plasmodium falciparum (strain K1) were <0.1 muM, 5-10-fold lower than that of 1 but their cytotoxicities were only 2-4 times greater than that of 1. Compounds with a halogen in the quinoline...
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