Interaction of the excited singlet state of 1,4- and 1,8-dimethoxynaphthalene with some organic compounds: A fluorescence-quenching study

1996 ◽  
Vol 127 (6-7) ◽  
pp. 593-600 ◽  
Author(s):  
M. A. El-Kemary ◽  
S. A. El-Daly
Keyword(s):  
Fluorescence Quenching ◽  
Organic Compounds ◽  
Singlet State ◽  
Excited Singlet State ◽  
Excited Singlet

Photoconductivity studies of perylene tetracarboxyl-diimides

1985 ◽  
Vol 63 (1) ◽  
pp. 134-139 ◽  
Author(s):  
Zoran D. Popovic ◽  
Rafik O. Loutfy ◽  
Ah-Mee Hor
Keyword(s):  
Fluorescence Quenching ◽  
Electric Field ◽  
Visible Light ◽  
Spectral Range ◽  
Singlet State ◽  
Visible Spectral Range ◽  
Excited Singlet State ◽  
Excited Singlet ◽  
Carrier Generation

Photoconductivity of a series of perylene tetracarboxyl-dimides has been studied by delayed-collection-field and electric field induced fluorescence quenching techniques. It has been shown that these materials exhibit both extrinsic (impurity controlled) and intrinsic carrier generation originating from the first excited singlet state. Perylene tetracarboxyl-diimides are photoactive in the visible spectral range and their carrier generation efficiencies compare well with generation efficiencies in the best known organic photoconductors. This makes them suitable for xerographic applications using visible light.

Photochemistry of Nitracrine and its Analogues: Acridine Derivatives as Electron Donors

1984 ◽  
Vol 39 (2) ◽  
pp. 195-200 ◽  
Author(s):  
J. Biedrzycki ◽  
J. Błażejowski ◽  
J. Szychliński ◽  
A. Ledòchowski
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Fluorescence Quenching ◽  
Triplet State ◽  
Uv Radiation ◽  
Electron Acceptor ◽  
Singlet State ◽  
Electron Donors ◽  
Excited Singlet State ◽  
Excited Singlet

Studies on the electron transfer in the excited state from electron donors: acridine, 9- aminoacridine and its derivatives, including nitracrine and its isomers, to CCl4 as a suitable electron acceptor, were undertaken. UV radiation (λ= 366 nm), absorbed only by acridine bases, generates CI- ions. The fluorescence quenching measurements indicate that no interaction appears between molecules of acridine bases in the excited singlet state and CCl4 molecule. A scheme of photochemical processes is proposed which assumes that the triplet state of the base molecule is the reactive one.

Photophysics studies of organic compounds VIII. Interaction between excited singlet state of pyrene and aromatic amines

2010 ◽  
Vol 9 (4) ◽  
pp. 297-304
Author(s):  
Feng-Qi Chen ◽  
Qun Yu ◽  
Xian-Juan Meng ◽  
Han-Shen Shou ◽  
Mei-Gong Fan
Keyword(s):  
Organic Compounds ◽  
Aromatic Amines ◽  
Singlet State ◽  
Excited Singlet State ◽  
Excited Singlet

The Gold Porphyrin First Excited Singlet State¶

2002 ◽  
Vol 76 (1) ◽  
pp. 47 ◽  
Author(s):  
Joakim Andréasson ◽  
Gerdenis Kodis ◽  
Su Lin ◽  
Ana L. Moore ◽  
Thomas A. Moore ◽  
...  
Keyword(s):  
Singlet State ◽  
Excited Singlet State ◽  
Excited Singlet
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