scholarly journals Photoexcitation of iodide ion-pyrimidine clusters above the electron detachment threshold: Intracluster electron transfer versus nucleobase-centred excitations

2018 ◽  
Vol 148 (8) ◽  
pp. 084304 ◽  
Author(s):  
Edward Matthews ◽  
Rosaria Cercola ◽  
Golda Mensa-Bonsu ◽  
Daniel M. Neumark ◽  
Caroline E. H. Dessent
Keyword(s):  
Electron Transfer ◽  
Electron Detachment ◽  
Iodide Ion

Investigating the Mapping of Chromophore Excitations onto the Electron Detachment Spectrum: Photodissociation Spectroscopy of Iodide Ion-Thiouracil Clusters

2021 ◽  
Author(s):  
Kelechi Uleanya ◽  
Caroline Elizabeth Helen Dessent
Keyword(s):  
Electron Transfer ◽  
Excited States ◽  
Electron Detachment ◽  
Iodide Ion

Laser photodissociation spectroscopy (3.1-5.7 eV) has been applied iodide complexes of the non-native nucleobases, 2-thiouracil (2-TU), 4-thiouracil (4-TU) and 2,4-Thiouracil (2,4-TU) to probe the excited states and intracluster electron transfer...

Electron-transfer photosensitization via ion pairs. Co(sepulchrate)3+-iodide ion system

1985 ◽  
Vol 24 (6) ◽  
pp. 844-847 ◽  
Author(s):  
Fernando Pina ◽  
Mauro Ciano ◽  
Luca Moggi ◽  
Vicenzo Balzani
Keyword(s):  
Electron Transfer ◽  
Ion Pairs ◽  
Iodide Ion

A light optical diffractometer for electron microscopical images operating in line

1978 ◽  
Vol 36 (1) ◽  
pp. 86-87
Author(s):  
P. Bonhomme ◽  
A. Beorchia
Keyword(s):  
Electron Microscopy ◽  
Electron Transfer ◽  
Electron Microscope ◽  
Image Converter ◽  
Coherent Light ◽  
Spatial Filters ◽  
Electron Image ◽  
Electron Microscopical ◽  
Working Parameters ◽  
Amorphous Part

We have already described (1.2.3) a device using a pockel's effect light valve as a microscopical electron image converter. This converter can be read out with incoherent or coherent light. In the last case we can set in line with the converter an optical diffractometer. Now, electron microscopy developments have pointed out different advantages of diffractometry. Indeed diffractogram of an image of a thin amorphous part of a specimen gives information about electron transfer function and a single look at a diffractogram informs on focus, drift, residual astigmatism, and after standardizing, on periods resolved (4.5.6). These informations are obvious from diffractogram but are usualy obtained from a micrograph, so that a correction of electron microscope parameters cannot be realized before recording the micrograph. Diffractometer allows also processing of images by setting spatial filters in diffractogram plane (7) or by reconstruction of Fraunhofer image (8). Using Electrotitus read out with coherent light and fitted to a diffractometer; all these possibilities may be realized in pseudoreal time, so that working parameters may be optimally adjusted before recording a micrograph or before processing an image.

Sign in / Sign up

Export Citation Format

Share Document