EPJ Web Conf.
Volume 161, 2017XI International Symposium on Photon Echo and Coherent Spectroscopy (PECS-2017)
|Number of page(s)||2|
|Section||Plenary lectures and invited talks|
|Published online||31 October 2017|
Spectral manifestation of distorted forms metalloporphyrins at low temperatures
B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Belarus
2 Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland
* e-mail: firstname.lastname@example.org
Published online: 31 October 2017
Different spectral forms of a set of metalloporphyrins with Mg (II), Zn (II), Pd (II) and Pt (II) ions in solid solutions (Shpol'skii matrices, solid tetrahydrofuran and solid rare gas matrices) have been detected in the absorption and luminescence spectra at cryogenic temperatures. The spectral manifestation of a planar form, as well as two distorted forms for Mg- and Zn-porpyrins was formed in the ground electronic state at low temperatures. An existence of two spectral forms of Pd and Pt-porphyrins was observed in their phosphorescence spectra. In the case of Mg-porphyrin the spectral shift between positions of 0-0 transitions the planar and first distorted spectral forms is about 220 cm-1.
© The Authors, published by EDP Sciences, 2017
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