scholarly journals Charge Transfer Transitions Originating from Charged Amino Acids Account for 300-800 nm UV-Visible Electronic Absorption Spectra in Proteins

2017 ◽  
Vol 112 (3) ◽  
pp. 190a-191a
Author(s):  
Imon Mandal ◽  
Saumya Prasad ◽  
Rajaram Swaminathan ◽  
Ravindra Venkatramani
Keyword(s):  
Amino Acids ◽  
Charge Transfer ◽  
Absorption Spectra ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra ◽  
Charged Amino Acids ◽  
Charge Transfer Transitions ◽  
Uv Visible

scholarly journals Near UV-Visible electronic absorption originating from charged amino acids in a monomeric protein

2017 ◽  
Vol 8 (8) ◽  
pp. 5416-5433 ◽  
Author(s):  
Saumya Prasad ◽  
Imon Mandal ◽  
Shubham Singh ◽  
Ashim Paul ◽  
Bhubaneswar Mandal ◽  
...  
Keyword(s):  
Amino Acids ◽  
Charge Transfer ◽  
Electronic Absorption ◽  
Protein Backbone ◽  
Protein Absorption ◽  
Charged Amino Acids ◽  
Charge Transfer Transitions ◽  
Uv Visible

We report 250–800 nm UV-Vis monomeric protein absorption originating from protein backbone–sidechain and sidechain–sidechain charge transfer transitions involving Lys/Glu residues.

Optical Spectroscopy of Mixed Metamagnetic FexCo1-xCl2 Crystals

1980 ◽  
Vol 35 (10) ◽  
pp. 1013-1019 ◽  
Author(s):  
Friedrich Seitz ◽  
Terence E. Wood ◽  
Peter Day
Keyword(s):  
Charge Transfer ◽  
Temperature Dependence ◽  
Single Crystals ◽  
Absorption Spectra ◽  
Optical Spectroscopy ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra ◽  
Broad Band ◽  
Mixed Crystals ◽  
Magnetic Exchange

Abstract Electronic absorption spectra are reported for single crystals of composition FexCo1-xCl2 as a function of temperature from 300 K to 4 K. A broad band at 436 nm is assigned to Fe (II) → Co (II) charge transfer and the temperature dependence of its intensity is related to the magnetic exchange between the ions. The 2T1g(2H) excitation of Co (II) in the mixed crystals has an unusual temperature dependence which correlates with the Néel temperature.

Spectra of the 1:1 and 3:1 solid complexes of coronene-TCNQ

1977 ◽  
Vol 55 (21) ◽  
pp. 3712-3716 ◽  
Author(s):  
Kim Doan Truong ◽  
André D. Bandrauk
Keyword(s):  
Charge Transfer ◽  
Absorption Spectra ◽  
Electronic Absorption ◽  
Ground State ◽  
Electronic Absorption Spectra ◽  
Charge Transfer Band ◽  
Out Of Plane ◽  
The Individual ◽  
A Charge ◽  
Solid Complexes

Two new solid TCNQ complexes have been isolated, coronene–TCNQ 1:1 and 3:1. The infrared and electronic absorption spectra are presented for the two different stoichiometries. From these spectra we infer that the complexes are covalent in the ground state with a charge transfer band appearing at 730 nm. The out of plane vibrations of the individual molecules are noticeably perturbed upon complexation.

Polarized electronic absorption spectra of crystalline charge transfer autocomplexes

1979 ◽  
Vol 35 (11) ◽  
pp. 1229-1234
Author(s):  
A.J. Mālmanis ◽  
Ya.A. Eiduss ◽  
J.F. Freimanis ◽  
J.J. Drēǧeris
Keyword(s):  
Charge Transfer ◽  
Absorption Spectra ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra

Spectroscopic Studies of Some Drugs of Toxicological Interest. Part II. p-Aminobenzoic Acid Drugs

1969 ◽  
Vol 23 (3) ◽  
pp. 254-256 ◽  
Author(s):  
A. Mustafa ◽  
R. Abu-Eittah ◽  
S. Elgendi
Keyword(s):  
Charge Transfer ◽  
Benzoic Acid ◽  
Absorption Spectra ◽  
Electronic Absorption ◽  
Intramolecular Charge Transfer ◽  
Electronic Absorption Spectra ◽  
Spectroscopic Studies ◽  
Aminobenzoic Acid ◽  
Long Wavelength ◽  
Amino Benzoic Acid

The electronic absorption spectra of some drugs derived from p-amino benzoic acid were studied. The effect of the substituent on the position of band maxima and intensity has been rationalized. Long wavelength energies have been found to agree well with calculated energies of the intramolecular charge transfer bands.

Complexes moléculaires d'hétérocycles soufrés et oxygénés. Étude spectrophotométrique de bandes de transfert de charge multiples

1982 ◽  
Vol 60 (7) ◽  
pp. 862-871 ◽  
Author(s):  
Jean-Paul Canselier ◽  
Serge Domenech ◽  
Štefan Stankovsky ◽  
Sabine Gautier
Keyword(s):  
Charge Transfer ◽  
Absorption Spectra ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra ◽  
Molecular Complexes ◽  
The Other ◽  
Ionization Potentials ◽  
Nonpolar Solvents ◽  
Other Hand ◽  
The One

As with benzenoid donors, the electronic absorption spectra of the molecular complexes of simple or condensed sulfur or oxygen-containing five-membered heterocycles with TCNE (or DDQ) often show two charge-transfer bands. In many cases, the knowledge of the actual frequencies requires a technique of resolution. The results so obtained are correlated with the ionization potentials of donors on the one hand, and the refractivity of nonpolar solvents on the other hand.

Sign in / Sign up

Export Citation Format

Share Document