Molecular complexes of macrocyclic polyethers with 1, 3, 5-trinitrobenzene
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چکیده
منابع مشابه
Alkali and Alkaline Earth Perchlorate and Picrate Complexes with Some Macrocyclic Polyethers
Crystalline complexes of some alkali and alkaline earth Perchlorates and picrates with macrocyclic polyethers have been synthesized. With the alkyl substituted aromatic macrocyclic polyethers bis(3,5-di-£er£-butylbenzo)-18-crown-6 and bis(4-hexadecylbenzo)-18crown-6 it was not possible to isolate all the complexes in the crystalline form. In fact the steric hindrance, caused by the alkyl substi...
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A series of chalcone-based macrocyclic ethers have been synthesized. These macrocyclic ethers contain polyether as well as extended conjugation to the benzene ring to function as fluorescent sensor for cations. The modeling studies show that the chalcone part of the receptors remains partially out of plane from the polyether part and the keto moiety of the receptors always directed outwardly in...
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The macrocyclic complexes of biological importance with power transition metals are synthesized by template methodology leading to the formation of the complex [MLX] X2; where L is macrocyclic ligand derived from 3,4-diaminotoluene, 2,4-thiazolidinedione, M=Cr (III) and Fe(III) X is Cl-, CH3COO- or NO3_.Characterisation of these complexes are through with the assistance of elemental analyses(CH...
متن کاملComplexation of Polyfunctional Organic Guest Molecules by Macrocyclic Polyethers. Complexes of S-tert -Butylisothiuronium Salts with 18-Crown-6 and 1,3-Xylyl-18-crown-5
Crystalline complexes of S-tert-butylisothiuronium perchlorate ( t-BuSC(NH2),C104) and 18-crown-6 (18C6) and 1,3-xylyl-18-crown-5 (1,3X18C5) with a 1:l stoichiometry were obtained via extraction. X-ray diffraction analysis showed that in the solid state the guest molecule is coordinated via one of the two NH, groups to the crown ether. The second NH2 group is bound to the anion. 'H NMR spectros...
متن کاملTheoretical study of the effects of solvents on energy components of - acceptor - 1 , 3 , 5 - trinitrobenzene
Quantum mechanical calculations of different energies components of 1,3,5-trinitrobenzene (TNB) in ground state were carried out by DFT method , in isolated state and in various solvents to study the effects of solvents on various energy components. The solvation energy, chemical potential, hardness, electrophilicity of picric acid were calculated with the help of computed HOMO-LUMO gap of picr...
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ژورنال
عنوان ژورنال: Proceedings of the Indian Academy of Sciences - Section A
سال: 1977
ISSN: 0370-0089
DOI: 10.1007/bf03046878