scholarly journals Tyrosine radicals in photosystem II and related model compounds. Characterization by isotopic labeling and EPR spectroscopy

1990 ◽  
Vol 265 (33) ◽  
pp. 20139-20143 ◽  
Author(s):  
B A Barry ◽  
M K el-Deeb ◽  
P O Sandusky ◽  
G T Babcock
Keyword(s):  
Photosystem Ii ◽  
Epr Spectroscopy ◽  
Isotopic Labeling ◽  
Model Compounds ◽  
Related Model

scholarly journals Photosystem II single crystals studied by EPR spectroscopy at 94 GHz: The tyrosine radical YFormula

2001 ◽  
Vol 98 (12) ◽  
pp. 6623-6628 ◽  
Author(s):  
W. Hofbauer ◽  
A. Zouni ◽  
R. Bittl ◽  
J. Kern ◽  
P. Orth ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Single Crystals ◽  
Epr Spectroscopy ◽  
Tyrosine Radical

Two-dimensional 67Zn HYSCORE spectroscopy reveals that a Zn-bacteriochlorophyll aP′ dimer is the primary donor (P840) in the type-1 reaction centers of Chloracidobacterium thermophilum

2020 ◽  
Vol 22 (11) ◽  
pp. 6457-6467 ◽  
Author(s):  
Philip Charles ◽  
Vidmantas Kalendra ◽  
Zhihui He ◽  
Mohammad Hassan Khatami ◽  
John H. Golbeck ◽  
...  
Keyword(s):  
Epr Spectroscopy ◽  
Isotopic Labeling ◽  
Reaction Centers ◽  
Two Dimensional ◽  
Pulsed Epr ◽  
Primary Donor

Using pulsed EPR spectroscopy and isotopic labeling we demonstrate that reaction centers of Chloracidobacterium thermophilum have an unusual primary donor that is a dimer of Zn-bacteriochlorophyll aP′ molecules.

Synthesis of 4,4′-bis(dicyanomethylene)bicyclohexylidine

1977 ◽  
Vol 55 (5) ◽  
pp. 782-784 ◽  
Author(s):  
Larry D. Pedersen ◽  
Larry Weiler
Keyword(s):  
Long Range ◽  
Title Compound ◽  
Uv Spectra ◽  
Model Compounds ◽  
Range Interaction ◽  
Related Model ◽  
Dihydro Derivative ◽  
Long Range Interaction

4,4′-Bis(dicyanomethylene)bicyclohexylidine and its dihydro derivative, 4,4′-bis(dicyanomethylene)bicyclohexyl were prepared from the condensation of malononitrile with the corresponding diketone. Bicyclohexylidene-4,4′-dione was synthesized from the monoketal of cyclohexanedione via the symmetric azosulfide.The uv spectra of the 4,4′-bis(dicyanomethylene)bicyclohexylidine and related model compounds indicate the presence of a long range interaction between the dicyanomethylene groups of the title compound.

Evaluation of atmospheric solids analysis probe mass spectrometry for the analysis of coal-related model compounds

Fuel ◽  
2014 ◽  
Vol 117 ◽  
pp. 556-563 ◽  
Author(s):  
Shou-Ze Wang ◽  
Xing Fan ◽  
Ai-Li Zheng ◽  
Yu-Gao Wang ◽  
You-Quan Dou ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Model Compounds ◽  
Related Model ◽  
Solids Analysis

Hemoglobin Studies. I. The Combination of Carbon Monoxide with Hemoglobin and Related Model Compounds

1958 ◽  
Vol 80 (5) ◽  
pp. 1109-1113 ◽  
Author(s):  
Jui H. Wang ◽  
Akitsugu Nakahara ◽  
Everly B. Fleischer
Keyword(s):  
Carbon Monoxide ◽  
Model Compounds ◽  
Related Model

13C nuclear magnetic resonance spectra of the spirobenzylisoquinoline alkaloids and related model compounds

1977 ◽  
Vol 55 (18) ◽  
pp. 3304-3311 ◽  
Author(s):  
Donald W. Hughes ◽  
Bala C. Nalliah ◽  
Herbert L. Holland ◽  
David B. MacLean
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Isoquinoline Alkaloids ◽  
Model Compounds ◽  
Related Model ◽  
Nuclear Magnetic Resonance Spectra ◽  
13C Nuclear Magnetic Resonance ◽  
C Nmr ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The natural abundance 13C nuclear magnetic resonance spectra of a number of spirobenzylisoquinoline alkaloids and related model compounds have been recorded. The carbon resonances of the alkaloids were assigned by comparison with the spectra of other isoquinoline alkaloids and with those of the model compounds. It has been shown that 13C nmr spectroscopy may be used to differentiate between diastereomers in this series.

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