Influence of Exchange-Correlation Functional in the Calculations of Vertical Excitation Energies of Halogenated Copper Phthalocyanines using Time-Dependent Density Functional Theory (TD-DFT)
- Authors
- Lee, Sang Uck
- Issue Date
- Aug-2013
- Publisher
- 대한화학회
- Keywords
- Absorption wavelength; Dye/pigments; Halogenation; Phthalocyanines; TD-DFT
- Citation
- Bulletin of the Korean Chemical Society, v.34, no.8, pp 2276 - 2280
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
KCI
- Journal Title
- Bulletin of the Korean Chemical Society
- Volume
- 34
- Number
- 8
- Start Page
- 2276
- End Page
- 2280
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/27172
- DOI
- 10.5012/bkcs.2013.34.8.2276
- ISSN
- 0253-2964
1229-5949
- Abstract
- The accurate prediction of vertical excitation energies is very important for the development of new materials in the dye and pigment industry. A time-dependent density functional theory (TD-DFT) approach coupled with 22 different exchange-correlation functionals was used for the prediction of vertical excitation energies in the halogenated copper phthalocyanine molecules in order to find the most appropriate functional and to determine the accuracy of the prediction of the absorption wavelength and observed spectral shifts. Among the tested functional, B3LYP functional provides much more accurate vertical excitation energies and UV-vis spectra. Our results clearly provide a benchmark calibration of the TD-DFT method for phthalocyanine based dyes and pigments used in industry.
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Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF CHEMICAL AND MOLECULAR ENGINEERING > 1. Journal Articles
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