Cited by 41Spectroscopy and Quantum Chemical StudiesPorphyrin and Phthalocyanine ChemistrySpectroscopy Techniques in Biomedical and Chemical Research

Raman properties of chlorophyll d, the major pigment of Acaryochloris marina: studies using both Raman spectroscopy and density functional theory

Chen, Min, Zeng, Heping, Larkum, Anthony W.D., Cai, Zheng-Li·2004·Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Abstract

The Raman spectroscopy of purified chlorophyll (Chl) d extracted from Acaryochloris marina has been measured over the wide region of 250-3200 cm(-1) at 77 K following excitation of its Soret band at 488 nm and analyzed with the aid of hybrid density-functional vibrational analyses. A Raman peak specific to Chl d, which arises from the formyl group 3(1) C=O stretching, was clearly observed at 1659 cm(-1) with medium intensity. Peaks due to other C=O stretching vibrations of the 13(1) keto-, 13(3) ester- and 17(3) groups were also observed. Four very strong peaks were observed in the range of 1000-1600 cm(-1), assigned to the CC stretching and mixtures of the CH3 bend and CN stretching. CCC and NCC bending contribute to medium intensity peaks at 986 and 915 cm(-1). Out-of-plane CH bending at Chl d methine sites 10, 5 and 20 contribute to observed peaks at 885, 864 and 853 cm(-1), respectively. A few modes involving the MgN stretching and MgNC bending motions were observed in the very low frequency range. Density functional theory (DFT) calculations have been used to make assignments on the observed Raman spectrum and the DFT results have been found to be in good agreement with the experimental results.

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Crossref · 10.1016/s1386-1425(03)00258-0

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  • When detecting Raman scattered light, Rayleigh and Tyndall scattering must first be eliminated, elucidating faint characteristic spectra comprising astaxanthin, chlorophyll a, chlorophyll b, chlorophyll c, lipids, fatty acids, proteins, carbohydrates, nucleic acids.

    “When detecting Raman scattered light, Rayleigh and Tyndall scattering must first be eliminated, elucidating faint characteristic spectra comprising astaxanthin, chlorophyll a, chlorophyll b, chlorophyll c, lipids, fatty acids, proteins, carbohydrates, nucleic acids, [18,38-44] (Fig. 2 & Fig. 3).”

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Authors
Chen, M., Zeng, H., Larkum, A. W. D., & Cai, Z.-L.
Affiliations
The University of Sydney (AU)
Corresponding author
Cai, Zheng-Li
Venue
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Publisher
Elsevier BV
Published
2004-02
Volume
60
Issue
3
Pages
527-534
ISSN
1386-1425 (ISSN-L)
OpenAlex
W1979610127
Cited by
41
References
40
Citations by year
2026: 4 · 2025: 2 · 2024: 1 · 2023: 2 · 2022: 3 · 2021: 2 · 2019: 3 · 2018: 1 · 2017: 3 · 2016: 3 · 2015: 4 · 2014: 1 · 2012: 1
FWCI
0.21
Type
journal article
Language
en
Open access
closed
Locations
  • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy (publishedVersion)
  • PubMed (publishedVersion)
Funders
East China Normal University
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Spectroscopy and Quantum Chemical Studies
  • Physical Sciences › Materials Science › Materials Chemistry › Porphyrin and Phthalocyanine Chemistry
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Spectroscopy Techniques in Biomedical and Chemical Research
Keywords
chlorophyll d, Acaryochloris marina, Raman spectra, vibrational assignment, C=O stretching, formyl group, low-frequency vibrational modes, DFT calculations
MeSH terms
Bacteria, Chlorophyll, Spectrum Analysis, Raman

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