Molecular deformation and vibrational structure of the first U.V. band in linear polyenes

1967 ◽  
Vol 7 (1) ◽  
pp. 15-19 ◽  
Author(s):  
S. Diner ◽  
J. P. Malrieu
Keyword(s):  
Vibrational Structure ◽  
Linear Polyenes ◽  
Molecular Deformation

scholarly journals NRVS and DFT of MitoNEET: Understanding the Special Vibrational Structure of a [2Fe-2S] Cluster with (Cys)3(His)1 Ligation

Biochemistry ◽  
2021 ◽  
Author(s):  
Leland B. Gee ◽  
Vladimir Pelmenschikov ◽  
Cécile Mons ◽  
Nakul Mishra ◽  
Hongxin Wang ◽  
...  
Keyword(s):  
Vibrational Structure

Collapse of vibrational structure in spectra of resonant x-ray Raman scattering

1997 ◽  
Vol 56 (1) ◽  
pp. 256-264 ◽  
Author(s):  
Faris Gel’mukhanov ◽  
Timofei Privalov ◽  
Hans Ågren
Keyword(s):  
Raman Scattering ◽  
Vibrational Structure ◽  
X Ray

A free-electron theory of conjugated molecules

1953 ◽  
Vol 49 (4) ◽  
pp. 650-658 ◽  
Author(s):  
J. Stanley Griffith
Keyword(s):  
Free Electron ◽  
Wave Functions ◽  
Electron Charge ◽  
Algebraic Equations ◽  
Electron Wave ◽  
Electron Theory ◽  
Conjugated Molecules ◽  
Electron Charge Density ◽  
Linear Polyenes ◽  
Alternant Hydrocarbons

ABSTRACTThe values of a free-electron eigenfunotion at the carbon nuclei of a conjugated hydrocarbon are found to satisfy a system of algebraic equations. These equations are similar in form to those obtained in the method known as the linear combination of atomic orbitale but only coincide with them for linear polyenes and benzene. The symmetry, degeneracy and energy of the eigenvectors of these free-electron equations correspond exactly to those of the free-electron wave functions found by the usual methods. From this correspondence, a theorem is deduced about the free-electron charge density in alternant hydrocarbons.

ChemInform Abstract: GEOMETRIES OF FIRST TRIPLET STATES OF LINEAR POLYENES

1978 ◽  
Vol 9 (10) ◽  
Author(s):  
V. BONACIC-KOUTECKY ◽  
SHINGO-ISHIMARU SHINGO-ISHIMARU
Keyword(s):  
Triplet States ◽  
Linear Polyenes

PYRIDINE N-OXIDE COMPLEXES OF ZIRCONYL, THORIUM, AND URANYL PERCHLORATES

1964 ◽  
Vol 42 (4) ◽  
pp. 856-860 ◽  
Author(s):  
P. Rama Murthy ◽  
C. C. Patel
Keyword(s):  
Absorption Spectra ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra ◽  
Visible Region ◽  
Lone Pair ◽  
Vibrational Structure ◽  
Uranyl Complexes ◽  
Bond Character

Pyridine N-oxide complexes having the composition ZrO(Py•O)6(ClO4)2, Th(Py•O)8(ClO4)4, and UO2(Py•O)5(ClO4)2 have been prepared. The infrared and electronic absorption spectra show that the bonding between the metal and pyridine N-oxide in the complexes has occurred by donation of the lone pair of p-electrons on oxygen to the metal, and that the π-bond character of NO group increases in the complexes as uranyl < thorium < zirconyl. The decrease in the vibrational structure of the UO22+ spectrum in the visible region indicates strong coordination of pyridine N-oxide to the uranyl group. The decomposition temperatures of zirconyl, thorium, and uranyl complexes are 307, 350, and 319 °C respectively.

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