Femtosecond transient absorption studies of two novel energetic tetrazole derivatives

Katturi, Naga Krishnakanth and Biswas, Chinmoy and Kommu, Nagarjuna and Raavi, Sai Santosh Kumar and et al, . (2021) Femtosecond transient absorption studies of two novel energetic tetrazole derivatives. Chemical Physics Impact, 2. pp. 1-7. ISSN 2667-0224

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Abstract

Excited-state dynamics of two novel energetic nitrogen-rich aryl-tetrazole molecules were investigated using femtosecond transient absorption spectroscopy. The internal conversion from Sn to S1 occurred in the 0.3–0.5 ps; vibrational relaxation within S1 states transpired in a 1.8–5 ps time scale and, subsequently, the intersystem crossing was observed with lifetimes of 7.8 ps and 129 ps. The nitro-substituted tetrazole demonstrated a faster decay with a weaker fluorescence compared to the amino-substituted derivative. We believe that the high nitrogen content in the former resulted in a possible more rapid nonradiative decay. © 2021

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IITH Creators:	IITH Creators ORCiD Raavi, Sai Santosh Kumar http://orcid.org/0000-0002-2496-9233
Item Type:	Article
Uncontrolled Keywords:	Energetic materials; Excited-state dynamics; Nitro compounds; Tetrazoles; Transient absorption
Subjects:	Physics
Divisions:	Department of Physics
Depositing User:	. LibTrainee 2021
Date Deposited:	23 Aug 2022 09:55
Last Modified:	23 Aug 2022 09:55
URI:	http://raiithold.iith.ac.in/id/eprint/10271
Publisher URL:	http://doi.org/10.1016/j.chphi.2021.100016
Related URLs:	Author Google Scholar

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