Correlation Between the Polarized Light Absorption and the X-Ray Structure of Single Crystals of the Reaction Center from Rhodobacter Sphaeroides R-26

1992 ◽  
pp. 13-20
Author(s):  
Harry A. Frank ◽  
Mila L. Aldema
Keyword(s):  
Single Crystals ◽  
Reaction Center ◽  
Rhodobacter Sphaeroides ◽  
Light Absorption ◽  
Polarized Light ◽  
X Ray

X-Ray Characterization of Single Crystals of the Reaction Center I of Water Splitting Photosynthesis

1988 ◽  
Vol 92 (12) ◽  
pp. 1503-1506 ◽  
Author(s):  
I. Witt ◽  
H. T. Witt ◽  
D. Di Fiore ◽  
M. Rögner ◽  
W. Hinrichs ◽  
...  
Keyword(s):  
Single Crystals ◽  
Water Splitting ◽  
Reaction Center ◽  
X Ray

Direct observation of monoclinic ferroelectric phase and domain switching process in (K0.25Na0.75)NbO3 single crystals

CrystEngComm ◽  
2015 ◽  
Vol 17 (14) ◽  
pp. 2872-2877 ◽  
Author(s):  
Hao Deng ◽  
Haiwu Zhang ◽  
Xiangyong Zhao ◽  
Chao Chen ◽  
Xi'an Wang ◽  
...  
Keyword(s):  
Light Microscopy ◽  
Single Crystals ◽  
Direct Observation ◽  
Ferroelectric Phase ◽  
Domain Switching ◽  
Polarized Light ◽  
Switching Process ◽  
X Ray Diffraction ◽  
X Ray

The domain-switching process of monoclinic K0.25Na0.75NbO3 single crystals were studied by in situ polarized light microscopy and X-ray diffraction.

Light Absorption by Pyrene Single Crystals Between 4 and 300 °K

1973 ◽  
Vol 28 (6) ◽  
pp. 973-979 ◽  
Author(s):  
D. Fischer ◽  
G. Naundorf ◽  
W. Klöpffer
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Single Crystals ◽  
Absorption Edge ◽  
Ground State ◽  
Light Absorption ◽  
Room Temperature ◽  
Polarized Light ◽  
Equilibrium Distance ◽  
Exciton Transport

Pyrene single crystals have been grown from zone refined material by sublimation and from the melt. The absorption edge has been measured for thick and thin crystals at room temperature. Thin crystals have been successfully cooled below the phase transition temperature (123 °K) without cracking. The sharp absorption peak at 376 nm vanishes at this temperature while the fluorescence spectrum remains unchanged. Using polarized light below 50 °K, a band with a maximum at 410 nm appears whose intensity increases with decreasing temperature. It is concluded that this band is due to ground-to-excimer state absorption in the ground state equilibrium distance of the pyrene molecules. The consequences of this finding for excimer-exciton transport is discussed.

X-ray Structure Determination of the Cytochrome c2: Reaction Center Electron Transfer Complex from Rhodobacter sphaeroides

2002 ◽  
Vol 319 (2) ◽  
pp. 501-515 ◽  
Author(s):  
Herbert L. Axelrod ◽  
Edward C. Abresch ◽  
Melvin Y. Okamura ◽  
Andrew P. Yeh ◽  
Douglas C. Rees ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Reaction Center ◽  
Rhodobacter Sphaeroides ◽  
Structure Determination ◽  
X Ray ◽  
Cytochrome C2 ◽  
Electron Transfer Complex

Identification of a hydrogen bond in the Phe M197→Tyr mutant reaction center of the photosynthetic purple bacterium Rhodobacter sphaeroides by X-ray crystallography and FTIR spectroscopy1

FEBS Letters ◽  
1999 ◽  
Vol 463 (1-2) ◽  
pp. 169-174 ◽  
Author(s):  
Andreas Kuglstatter ◽  
Petra Hellwig ◽  
Günter Fritzsch ◽  
Josef Wachtveitl ◽  
Dieter Oesterhelt ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Reaction Center ◽  
Rhodobacter Sphaeroides ◽  
Purple Bacterium ◽  
X Ray ◽  
X Ray Crystallography
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