n and π Ionization Potentials of Nitrogen Heterocyclic Molecules from Charge‐Transfer Absorption of Their Complexes

1967 ◽  
Vol 47 (11) ◽  
pp. 4863-4864 ◽  
Author(s):  
M. Ashraf El‐Bayoumi ◽  
Omar S. Khalil
Keyword(s):  
Charge Transfer ◽  
Ionization Potentials ◽  
Heterocyclic Molecules ◽  
Nitrogen Heterocyclic

Substituenteneffekte und Störung von π-Systemen, XXXV Radikalanionen Zinn-substituierter Naphthaline/ Substituent Effects and Perturbation of n Systems, XXXV Radical Anions of Tin-Substituted Naphthalenes

1978 ◽  
Vol 33 (11) ◽  
pp. 1223-1226 ◽  
Author(s):  
Hans Bock ◽  
Wolfgang Kaim ◽  
Holger Tesmann
Keyword(s):  
Charge Transfer ◽  
Substituent Effects ◽  
Esr Spectra ◽  
Group Iv ◽  
Ionization Potentials ◽  
Radical Anions ◽  
Spin Distribution ◽  
Reduction Potentials ◽  
Half Wave ◽  
Wave Reduction

Abstract Novel radical anions of trimethylstannyl substituted naphthalenes and their ESR spectra are reported. Both 119 Sn and 117 Sn coupling can be assigned unequivocally. The perturbation of π systems by R3X substituents of group IV b elements X = C, Si, Ge, Sn and Pb is discussed with respect to photoelectron ionization potentials, charge transfer excitations, half-wave reduction potentials and ESR spin distribution.

The radio spectra of planar aromatic heterocycles: how to quantify and predict the negative inertial defects

2017 ◽  
Vol 19 (13) ◽  
pp. 8970-8976 ◽  
Author(s):  
Michaela K. Jahn ◽  
Jens-Uwe Grabow ◽  
Michael J. Travers ◽  
Dennis Wachsmuth ◽  
Peter D. Godfrey ◽  
...  
Keyword(s):  
Interstellar Medium ◽  
Aromatic Heterocycles ◽  
Heterocyclic Molecules ◽  
Aromatic Systems ◽  
Nitrogen Heterocyclic

The simplest tricyclic aromatic nitrogen heterocyclic molecules 5,6-benzoquinoline and 7,8-benzoquinoline are possible candidates for detection of aromatic systems in the interstellar medium.

Molecular Complexes of p-Chloranil with Aniline, Phenol and their Derivatives

2015 ◽  
Vol 670 ◽  
pp. 89-94
Author(s):  
Boris S. Pryalkin ◽  
Yulia S. Bodagova
Keyword(s):  
Charge Transfer ◽  
Electron Acceptor ◽  
Photoelectron Spectroscopy ◽  
Spectral Properties ◽  
Molecular Complexes ◽  
Ionization Potentials ◽  
Wide Range ◽  
Vertical Ionization Potentials ◽  
Vertical Ionization Energies

Classification of simple supramolecular structures (for example molecular complexes), which has been introduced and described by Mulliken [1], is based on types of molecular orbitals of the components. In the paper [2], disadvantages of such classification are shown, which motivate us to return to the re-examination properties of molecular complexes. By this reason, there is a need to research the molecular complexes of one electron acceptor with a wide range of electron donor molecules. This paper have continued work (Part I [3]) on the chloranil complexes by studying the spectral properties complexes of N- and O-unsubstituting anilines and phenols. The present work aimed at analyzing linear relation the energies of charge-transfer bands of molecular complexes are related to ionization potentials of the donor components. All complexes conform to linear relations like involving both adiabatic and vertical ionization potentials of donor components. Mulliken [1] has been proposed to apply the vertical ionization potentials of donor components only. The development of photoelectron spectroscopy has led to the measurement of adiabatic and vertical ionization energies for thousands of molecules, which allow theirs to the present analysis of spectral properties molecular complexes.

Complexes moléculaires d'hétérocycles soufrés et oxygénés. Étude spectrophotométrique de bandes de transfert de charge multiples

1982 ◽  
Vol 60 (7) ◽  
pp. 862-871 ◽  
Author(s):  
Jean-Paul Canselier ◽  
Serge Domenech ◽  
Štefan Stankovsky ◽  
Sabine Gautier
Keyword(s):  
Charge Transfer ◽  
Absorption Spectra ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra ◽  
Molecular Complexes ◽  
The Other ◽  
Ionization Potentials ◽  
Nonpolar Solvents ◽  
Other Hand ◽  
The One

As with benzenoid donors, the electronic absorption spectra of the molecular complexes of simple or condensed sulfur or oxygen-containing five-membered heterocycles with TCNE (or DDQ) often show two charge-transfer bands. In many cases, the knowledge of the actual frequencies requires a technique of resolution. The results so obtained are correlated with the ionization potentials of donors on the one hand, and the refractivity of nonpolar solvents on the other hand.

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