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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 10
BKCSDE 31(10)
October 20, 2010 
 
Title
 Computational Study of 3-Aminophenol·(CO2)1 Cluster: CO2 Capture Ability of 3-Aminophenol
Author
 Woon Yong Sohn, Minho Kim, Sang Su Kim, Hyuk Kang*
Keywords
 Aminophenol, CO2 Capture, Complete basis set limit
Abstract
 The structure of 3-aminophenol·(CO2)1 cluster was computationally studied both in the ground and the lowest singlet excited electronic states. The ground state structure and binding energy of the cluster was investigated using the secondorder Moller-Plesset perturbation theory (MP2) at the complete basis set (CBS) limit. The excited state geometry of the cluster was obtained at the second-order approximate coupled cluster (CC2) level with cc-pVDZ basis set, and the S0-S1 absorption spectrum was simulated by calculating Franck-Condon overlap integral. The ground state geometry of the global minimum with a very high binding energy of 4.3 kcal/mol was found for the cluster, due to the interaction between amino group and CO2 in addition to the strong π-π interaction between the aromatic ring and CO2. The excited state geometry shows a very big shift in the position of CO2 compared to the ground state geometry, which results in low intensity and broad envelope in the Franck-Condon simulation.
Page
 2806 - 2808
Full Text
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