نتایج جستجو برای: 245 triaryl 1h imidazole
تعداد نتایج: 42287 فیلتر نتایج به سال:
Imidazole derivatives have a wide spectrum of pharmacological activities especially potent antimicrobial activity against a wide variety of microbes like bacteria and fungi. Therefore, in this study new series of imidazole derivatives were synthesized and investigated for antimicrobial activity so as to obtain new biologically active compounds. Structures of the final compounds were confirmed b...
The title compound, C(15)H(9)BrN(2)S, was prepared by the reaction of 1-bromo-2-(2,2-dibromo-vin-yl)benzene with 1H-benzo[d]imidazole-2(3H)-thione. The thia-zolo[3,2-a]benz-imidazole fused-ring system is nearly planar, the maximum atomic deviation being 0.049 (4) Å. This mean plane is oriented at a dihedral angle of 71.55 (17)° with respect ot the bromo-phenyl ring. π-π stacking is observed in ...
The title compound, C26H25BrN2, is isomorphous with the chloro derivative [2-(4-chloro-phen-yl)-1-pentyl-4,5-diphenyl-1H-imidazole; Mohamed et al. (2013 ▶). Acta Cryst. E69, o846-o847]. The two phenyl rings and the 4-bromo-phenyl ring are oriented at dihedral angles of 30.1 (2), 64.3 (3) and 42.0 (2)°, respectively, with respect to the imidazole ring. In the crystal, mol-ecules stack in columns...
In the title complex, [CuCl2(C12H14N2)2], the Cu(2+) cation is situated on an inversion centre and is coordinated by two N atoms from symmetry-related 1-mesityl-1H-imidazole ligands and by two chloride anions in a slightly distorted square-planar geometry. In the organic ligand, the dihedral angle between the benzene ring of the mesityl moiety and the imidazole ring is 76.99 (18)°. Weak intra-m...
The preparation of two types of imidazole derivatives bearing a hydrazide group was achieved by treatment of the corresponding esters with NH2NH2·H2O in MeOH at room temperature. In the case of 4-(ethoxycarbonyl)-1H-imidazole 3-oxides 3, hydrazides of type 1 were formed with retention of the N-oxide structure (Scheme 1). Interestingly, due to a strong H-bonding, no deoxygenation of the N-O func...
The design of an efficient pure blue emitter to achieve stable, long operating organic light-emitting diode (OLED) devices still poses a significant challenge. Although through phosphorescence and thermally activated delayed fluorescence concepts, stable monochrome green red OLEDs can be realized, the has been All efforts so far have resulted in severe efficiency roll-off limited device lifetim...
Rapid and efficient analysis of fluoride ion is crucial to providing key information for fluoride ion hazard assessment and pollution management. In this study, we synthesized one symmetrical structure called 1,4-bis(4,5-diphenyl-1H-imidazol-2-yl)benzene (1a) and two asymmetrical structures, namely 2-(4-(4,5-diphenyl-1H-imidazol-2-yl)phenyl)-1H-phenanthro(9,10-d)imidazole (1b) and 2-(4-(4,5-dip...
Metronidazole (MET) [systematic names: 1-(2-hy-droxy-eth-yl)-2-methyl-5-nitro-1H-imidazole and 2-(2-methyl-5-nitro-1H-imidazol-1-yl)ethanol] is a medication that is used to treat infections from a variety of anaerobic organisms. As with other imidazole derivatives, metronidazole is also susceptible to protonation. However, there are few reports of the structures of metronidazolium derivatives. ...
9-beta-D-Arabinofuranosyl-2-fluoroadenine (2-F-ara-A) and 2-fluoro-2'-deoxyadenosine (2-FdAdo) were potent inhibitors of L1210 cell growth in culture. Even though these 2-fluoroadenine nucleosides are very poor substrates for adenosine deaminase, erythro-9-(2-hydroxyl-3-nonyl)adenine potentiated the growth-inhibitory properties of 2-FdAdo but not 2-F-ara-A in a synergistic manner. 2-FdAdo and 2...
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