Absorption Spectra of Chlorophylls a and b at Room and Liquid Nitrogen Temperatures

Nature ◽  
1934 ◽  
Vol 133 (3363) ◽  
pp. 569-569 ◽  
Author(s):  
F. PAUL ZSCHEILE
Keyword(s):  
Liquid Nitrogen ◽  
Absorption Spectra ◽  
Chlorophylls A And B

Liquid-Nitrogen-Cooled Optical Cell for the Study of Absorption Spectra in a Fourier Spectrometer

2020 ◽  
Vol 33 (4) ◽  
pp. 393-399
Author(s):  
V. I. Serdyukov ◽  
L. N. Sinitsa ◽  
A. A. Lugovskoi ◽  
N. M. Emel’yanov
Keyword(s):  
Liquid Nitrogen ◽  
Absorption Spectra ◽  
Fourier Spectrometer ◽  
Optical Cell

Absorption Spectra of Co(II)Ions Doped in Magnesium Thallium Sulphate Hexahydrate

1995 ◽  
Vol 50 (12) ◽  
pp. 1165-1169
Author(s):  
A. Venkata Subbaiah ◽  
J. Lakshmana Rao ◽  
Y. Nagaraja Naidu
Keyword(s):  
Liquid Nitrogen ◽  
Absorption Spectra ◽  
Ground State ◽  
Near Infrared ◽  
Liquid Nitrogen Temperature ◽  
Spin Orbit ◽  
Octahedral Symmetry ◽  
Orbit Splitting ◽  
Characteristic Absorption ◽  
Spin Orbit Splitting

Abstract The optical obsorption spectrum of Co(II) ions doped in magnesium thallium sulphate hexahy­ drate is studied at room and liquid nitrogen temperatures. The crystal exhibits characteristic absorption of the Co(II) ion in the visible and near infrared. The observed bands are assigned to transitions from the ground state 4T1g (F) to various excited quartet and doublet levels of the Co(II) ion in octahedral symmetry. The splitting of one of the bands at liquid nitrogen temperature is explained to be due to spin-orbit splitting. All band positions have been fitted by the parameters B, C, Dq and ξ.

scholarly journals Optical absorption and electronic spectra of chlorophylls a and b

RSC Advances ◽  
2016 ◽  
Vol 6 (111) ◽  
pp. 109778-109785 ◽  
Author(s):  
Leila Hedayatifar ◽  
Elnaz Irani ◽  
Mahmood Mazarei ◽  
Soroush Rasti ◽  
Yavar T. Azar ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Electronic Properties ◽  
Absorption Spectra ◽  
Electronic Spectra ◽  
Green Plants ◽  
Chlorophylls A And B ◽  
Optical And Electronic Properties

We report optical and electronic properties of the two main chlorophylls in green plants, namely, chlorophylls a and b. We estimate the electric moments of these molecules and study absorption spectra of the chlorophylls.

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