학술논문

Molecular Rearrangement of an Aza-Scorpiand Macrocycle Induced by pH: A Computational Study
Document Type
article
Source
International Journal of Molecular Sciences, Vol 17, Iss 7, p 1131 (2016)
Subject
pH controlled
supramolecular chemistry
synthetic receptors
aza-scorpiands
semi-empirical
Density Functional Theory
Monte Carlo Multiple Minimum
Biology (General)
QH301-705.5
Chemistry
QD1-999
Language
English
ISSN
1422-0067
Abstract
Rearrangements and their control are a hot topic in supramolecular chemistry due to the possibilities that these phenomena open in the design of synthetic receptors and molecular machines. Macrocycle aza-scorpiands constitute an interesting system that can reorganize their spatial structure depending on pH variations or the presence of metal cations. In this study, the relative stabilities of these conformations were predicted computationally by semi-empirical and density functional theory approximations, and the reorganization from closed to open conformations was simulated by using the Monte Carlo multiple minimum method.