Abstract
High-resolution absorption spectra of the S 1 ← S 0 0 0 0 transition of buffer-gas-cooled magnesium-phthalocyanine, zinc-phthalocyanine, and chloroaluminum-phthalocyanine are presented. The low temperature achieved through buffer gas cooling allowed the observation of a partially resolved rotational structure in each spectrum. We compare these structures with the previously observed high-resolution spectrum of free-base phthalocyanine. Despite the similar molecular structures of these molecules, the spectral characteristics of the rotational envelope vary depending on the individual molecular structures.
Original language | English |
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Pages (from-to) | 808-812 |
Number of pages | 5 |
Journal | Low Temperature Physics |
Volume | 50 |
Issue number | 9 |
DOIs | |
State | Published - 2024/09/01 |
Keywords
- absorption spectra
- excited states.
- high-resolution electronic spectroscopy
- metal-phthalocyanine
- phthalocyanine
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)