Assessment of TDDFT- and CIS-based methods for calculating fluorescence spectra of (dibenzoylmethanato)boron difluoride exciplexes with aromatic hydrocarbons

2017 ◽  
Vol 23 (5) ◽  
Author(s):  
A. A. Safonov ◽  
A. A. Bagaturyants ◽  
V. A. Sazhnikov
Keyword(s):  
Aromatic Hydrocarbons ◽  
Fluorescence Spectra ◽  
Boron Difluoride

Charge transfer energies of the complexes of (dibenzoylmethanato)boron difluoride with indeno-pyridines and polynuclear aromatic hydrocarbons

2013 ◽  
Vol 108 ◽  
pp. 181-185 ◽  
Author(s):  
Tandrima Chaudhuri ◽  
Sneha Salampuria ◽  
Pradip Kumar Tapaswi ◽  
Chhanda Mukhopadhyay ◽  
Subrata Chattopadhyay ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Aromatic Hydrocarbons ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Boron Difluoride

scholarly journals Absorption and Laser Induced Fluorescence Spectroscopy of Neutral Polycyclic Aromatic Hydrocarbons in Argon matrices

2015 ◽  
Vol 11 (A29A) ◽  
Author(s):  
Salma Bejaoui ◽  
Farid Salama ◽  
Ella Sciamma-O'Brien
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Fluorescence Spectra ◽  
Laser Induced Fluorescence ◽  
Broad Emission Band ◽  
Band Emission ◽  
Polycyclic Aromatic ◽  
Argon Matrices ◽  
Extended Red Emission ◽  
Solid Argon

Polycyclic aromatic hydrocarbons (PAHs) are considered as plausible carriers for the extended red emission (ERE), a photoluminescent process associated with a wide variety of interstellar environments, as well as for broad emission band features seen in cometary spectra. We report the absorption spectra of phenanthrene, anthracene, fluoranthene, pentacene, pyrene, chrysene and triphenylene isolated at 10 K in solid argon matrices together with laser induced fluorescence (LIF) spectra at 355 nm of matrix-isolated anthracene and fluoranthene. LIF spectra are compared with the UV/blue fluorescence spectra of the Red Rectangle Nebula (RR). The LIF spectra measured in solid Ar matrices have been shifted to the predicted position of the PAH band emission in the gas phase for comparison with the astronomical observations (Fig. 1).

Fluorescence Spectra of Aromatic Hydrocarbons Based on Alternating Trilinear Decomposition

2018 ◽  
Vol 55 (9) ◽  
pp. 093001
Author(s):  
王玉田 Wang Yutian ◽  
刘凌妃 Liu Lingfei ◽  
王书涛 Wang Shutao ◽  
张正帅 Zhang Zhengshuai
Keyword(s):  
Aromatic Hydrocarbons ◽  
Fluorescence Spectra ◽  
Trilinear Decomposition ◽  
Alternating Trilinear Decomposition

Evolving Factor Analysis for Frequency-Domain Lifetime Resolution of Fluorescence Spectra

1992 ◽  
Vol 46 (1) ◽  
pp. 28-33 ◽  
Author(s):  
David W. Millican ◽  
Linda B. McGown
Keyword(s):  
Factor Analysis ◽  
Aromatic Hydrocarbons ◽  
Fluorescence Spectra ◽  
Individual Component ◽  
Spectral Matrix ◽  
New Approach ◽  
Two Component ◽  
Polycyclic Aromatic ◽  
Unique Maximum ◽  
Fundamental Limitation

Evolving factor analysis (EFA) is a new approach to the resolution of individual component spectra on the basis of fluorescence lifetime differences. Phase-resolved fluorescence spectra collected at several excitation modulation frequencies are well suited to EFA resolution because the frequency-response curve of phase-resolved intensity for each lifetime component has a single, unique maximum. Unlike other self-modeling spectral matrix resolution methods, EFA has no fundamental limitation upon the number of components that can be resolved. In this work, the resolution of two-component and three-component mixtures of polycyclic aromatic hydrocarbons is demonstrated.

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