scholarly journals Angle-Resolved Photoemission of Solvated Electrons in Sodium-Doped Clusters

2015 ◽  
Vol 6 (8) ◽  
pp. 1487-1492 ◽  
Author(s):  
Adam H. C. West ◽  
Bruce L. Yoder ◽  
David Luckhaus ◽  
Clara-Magdalena Saak ◽  
Maximilian Doppelbauer ◽  
...  
2001 ◽  
Vol 66 (1) ◽  
pp. 109-118 ◽  
Author(s):  
Jozef Šima ◽  
Dáša Lauková ◽  
Vlasta Brezová

Photoredox reactions occurring in irradiated methanolic solutions of trans-[FeIII(R,R'-salen)(CH3OH)I], where R,R'-salen2- are N,N'-ethylenebis(R,R'-salicylideneiminato), tetradentate open-chain N2O2-Schiff bases with R,R' = H, 5-Cl, 5-Br, 3,5-di-Br, 3,5-di-(CH3), 3-OCH3, 5-OCH3, have been investigated and their mechanism proposed. The complexes are redox-stable in the dark. Ultraviolet and/or visible irradiation of methanolic solution of the complexes induces photoreduction of Fe(III) to Fe(II). Depending on the composition of the irradiated solutions, •CH2OH radicals or solvated electrons were identified by the EPR spin trapping technique. The final product of the photooxidation coupled with the photoreduction of Fe(III) is formaldehyde and the molar ratio of Fe(II) and CH2O is close to 2 : 1. The efficiency of the photoredox process is strongly wavelength-dependent and influenced by the peripheral groups R,R' of the tetradentate ligands.


1989 ◽  
Vol 90 (8) ◽  
pp. 4413-4422 ◽  
Author(s):  
R. B. Barnett ◽  
Uzi Landman ◽  
Abraham Nitzan

2016 ◽  
Vol 120 (8) ◽  
pp. 1153-1159 ◽  
Author(s):  
Yo-ichi Yamamoto ◽  
Shutaro Karashima ◽  
Shunsuke Adachi ◽  
Toshinori Suzuki

1998 ◽  
Vol 76 (4) ◽  
pp. 411-413
Author(s):  
Yixing Zhao ◽  
Gordon R Freeman

The energy and asymmetry of the optical absorption spectrum of solvated electrons, es- , change in a nonlinear fashion on changing the solvent through the series HOH, CH3OH, CH3CH3OH, (CH3)2CHOH, (CH3)3COH. The ultimate, quantum-statistical mechanical, interpretation of solvated electron spectra is needed to describe the solvent dependence. The previously reported optical spectrum of es- in tert-butanol was somewhat inaccurate, due to a small amount of water in the alcohol and to limitations of the infrared light detector. The present note records the remeasured spectrum and its temperature dependence. The value of the energy at the absorption maximum (EAmax) is 155 zJ (0.97 eV) at 299 K and 112 zJ (0.70 eV) at 338 K; the corresponding values of G epsilon max (10-22 m2 aJ-1) are 1.06 and 0.74. These unusually large changes are attributed to the abnormally rapid decrease of dielectric permittivity of tert-butanol with increasing temperature. The band asymmetry at 299 K is Wb/Wr = 1.8.Key words: optical absorption spectrum, solvated electron, solvent effects, tert-butanol, temperature dependence.


Author(s):  
A. Ghalgaoui ◽  
B. P. Fingerhut ◽  
K. Reimann ◽  
M. Woerner ◽  
T. Elsaesser

Sign in / Sign up

Export Citation Format

Share Document