Direct correlation of cation binding strengths to Hammett parameters in substituted N-benzylaza-15-crown-5 lariat ether and N,N'-dibenzyl-4,13-diaza-18-crown-6 BiBLE derivatives
Direct correlation of cation binding strengths to Hammett parameters in substituted N-benzylaza-15-crown-5 lariat ether and N,N'-dibenzyl-4,13-diaza-18-crown-6 BiBLE derivatives
作者:Deborah A. Gustowski、Vincent J. Gatto、Jesus Mallen、Luis Echegoyen、George W. Gokel
DOI:10.1021/jo00232a021
日期:1987.11
Synthesis and Complex-Forming Properties of N-Substituted Diazacrown Ethers
作者:N. G. Luk'yanenko、S. S. Basok、E. Yu. Kulygina、V. I. Vetrogon
DOI:10.1023/b:rugc.0000025154.24958.66
日期:2003.12
N-Substituted mono- and diazacrown ether with ethoxycarbonylmethyl, 7-phenyl-3,6-dioxaheptyl, p-methoxy, and p-nitrobenzyl groups in the side chain have been synthesized. Their reactions with alkali and alkaline-earth metals have been studied. Substituents affect the complex-forming ability of the "base" macrocycle by changing the basicity of the nitrogen atoms and coordinating with the complexing ion.
Conformational mobility of 7,16-bis(4-methoxybenzyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane in molecular and proton-transfer complexes: X-ray and DFT studies
作者:Marina S. Fonari、Eduard V. Ganin、Yurii M. Chumakov、Mark M. Botoshansky、Kinga Suwinska、Stepan S. Basok、Yurii A. Simonov
DOI:10.1039/b902953b
日期:——
conformations of 1 in comparison with the relative compounds based on 2, the theoretical quantum chemical calculations on the DFT (B3LYP) level were performed. The contribution of the methoxygroup that provides the C–H⋯O(OCH3) hydrogen bonding to the overall system of intermolecular interactions has been estimated by comparison with the complexes based on 2.