Journal article
The electronic spectrum of purine
Spectrochimica acta. Part A: Molecular spectroscopy, v 33(2)
1977
Abstract
Absorption, phosphorescence and phosphorescence excitation spectra are reported for matrix-isolated purine at 20 K. In general, the spectra show enhanced vibrational structure over gas phase or solution conditions. The
1(π*←π) absorption closely resembles that in the gas phase. The phosphorescence is rich in structure with the best resolution in argon. Several ground state fundamentals involving ring deformations are observed. The most active vibrations are the
a′ modes 649, 793, 1260, 1482 and 1563 cm
−1. The
1(π*←
n) transition appears with vibrational structure in the phosphorescence excitation spectrum; the vibrations are 426, 566 and 846 cm
−1. Mixing between
1ππ* and
1
nπ* and methane-purine hydrogen bonding appear to contribute to the observed spectra.
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Details
- Title
- The electronic spectrum of purine
- Creators
- J.J. Smith - Drexel University
- Publication Details
- Spectrochimica acta. Part A: Molecular spectroscopy, v 33(2)
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Architecture
- Web of Science ID
- WOS:A1977CZ72400006
- Scopus ID
- 2-s2.0-26544470765
- Other Identifier
- 991019173901204721