Electronic spectra of jet-cooled isoindoline: Spectroscopic determination of energy difference between conformational isomers

2010 ◽  
Vol 132 (16) ◽  
pp. 164309 ◽  
Author(s):  
Sei’ichi Tanaka ◽  
Katsuhiko Okuyama
Keyword(s):  
Electronic Spectra ◽  
Energy Difference ◽  
Spectroscopic Determination ◽  
Conformational Isomers

scholarly journals Spectroscopic Determination of an Anion−π Bond Strength

2019 ◽  
Vol 141 (15) ◽  
pp. 6132-6135 ◽  
Author(s):  
Cate S. Anstöter ◽  
Joshua P. Rogers ◽  
Jan R. R. Verlet
Keyword(s):  
Bond Strength ◽  
Spectroscopic Determination

One-photon VUV-MATI and two-photon IR+VUV-MATI spectroscopic determination of oxetane cation ring-puckering vibrations and conformation

2021 ◽  
Vol 154 (5) ◽  
pp. 054308
Author(s):  
Do Won Kang ◽  
Sung Man Park ◽  
Chung Bin Park ◽  
Bong June Sung ◽  
Hong Lae Kim ◽  
...  
Keyword(s):  
Spectroscopic Determination ◽  
Two Photon ◽  
Ring Puckering

A Purely Spectroscopic Technique for Determining Energy Band Offsets in Quantum Wells

1991 ◽  
Vol 240 ◽  
Author(s):  
Emil S. Koteies
Keyword(s):  
Quantum Wells ◽  
Valence Band ◽  
Accurate Determination ◽  
Energy Difference ◽  
Spectroscopic Technique ◽  
Band Offsets ◽  
Band Energy ◽  
Semiconductor Quantum Wells ◽  
Sensitive Function

ABSTRACTWe have developed a novel experimental technique for accurately determining band offsets in semiconductor quantum wells (QW). It is based on the fact that the ground state heavy- hole (HH) band energy is more sensitive to the depth of the valence band well than the light-hole (LH) band energy. Further, it is well known that as a function of the well width, Lz, the energy difference between the LH and HH excitons in a lattice matched, unstrained QW system experiences a maximum. Calculations show that the position, and more importantly, the magnitude of this maximum is a sensitive function of the valence band offset, Qy, which determines the depth of the valence band well. By fitting experimentally measured LH-HH splittings as a function of Lz, an accurate determination of band offsets can be derived. We further reduce the experimental uncertainty by plotting LH-HH as a function of HH energy (which is a function of Lz ) rather than Lz itself, since then all of the relevant parameters can be precisely determined from absorption spectroscopy alone. Using this technique, we have derived the conduction band offsets for several material systems and, where a consensus has developed, have obtained values in good agreement with other determinations.

Determination of the Rotational Barrier for Kinetically Stable Conformational Isomers via NMR and 2D TLC

2007 ◽  
Vol 84 (9) ◽  
pp. 1499 ◽  
Author(s):  
Gregory T. Rushton ◽  
William G. Burns ◽  
Judi M. Lavin ◽  
Yong S. Chong ◽  
Perry Pellechia ◽  
...  
Keyword(s):  
Rotational Barrier ◽  
Conformational Isomers
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