Conformation Elucidation of Tethered Donor−Acceptor Binaphthyls from the Anisotropy Factor of a Charge-Transfer Band

2010 ◽  
Vol 1 (15) ◽  
pp. 2402-2405 ◽  
Author(s):  
Masaki Nishizaka ◽  
Tadashi Mori ◽  
Yoshihisa Inoue
Keyword(s):  
Charge Transfer ◽  
Charge Transfer Band ◽  
Anisotropy Factor ◽  
Donor Acceptor ◽  
A Charge

scholarly journals Nanopore-induced host–guest charge transfer phenomena in a metal–organic framework

2018 ◽  
Vol 9 (13) ◽  
pp. 3282-3289 ◽  
Author(s):  
S. Yamamoto ◽  
J. Pirillo ◽  
Y. Hijikata ◽  
Z. Zhang ◽  
K. Awaga
Keyword(s):  
Charge Transfer ◽  
Self Assembly ◽  
Metal Organic Framework ◽  
Donor And Acceptor ◽  
Organic Electron ◽  
Donor Acceptor ◽  
Metal Organic ◽  
Bulk Scale ◽  
A Charge ◽  
Organic Framework

Using the “crystal sponge” approach, weak organic electron donor molecules were impregnated and evenly distributed in a crystal of a metal–organic framework (MOF), with the self-assembly of the donor–acceptor pairs with electron acceptor ligands. The nanopores of the MOF confined them and induced a charge transfer phenomenon, which would not occur between donor and acceptor molecules in a bulk scale.

Spectra of the 1:1 and 3:1 solid complexes of coronene-TCNQ

1977 ◽  
Vol 55 (21) ◽  
pp. 3712-3716 ◽  
Author(s):  
Kim Doan Truong ◽  
André D. Bandrauk
Keyword(s):  
Charge Transfer ◽  
Absorption Spectra ◽  
Electronic Absorption ◽  
Ground State ◽  
Electronic Absorption Spectra ◽  
Charge Transfer Band ◽  
Out Of Plane ◽  
The Individual ◽  
A Charge ◽  
Solid Complexes

Two new solid TCNQ complexes have been isolated, coronene–TCNQ 1:1 and 3:1. The infrared and electronic absorption spectra are presented for the two different stoichiometries. From these spectra we infer that the complexes are covalent in the ground state with a charge transfer band appearing at 730 nm. The out of plane vibrations of the individual molecules are noticeably perturbed upon complexation.

scholarly journals The charge percolation mechanism and simulation of Ziegler-Natta polymerizations. Part III. Oxidation states of transition metals

2006 ◽  
Vol 71 (4) ◽  
pp. 357-372 ◽  
Author(s):  
Branka Pilic ◽  
Dragoslav Stoiljkovic ◽  
Ivana Bakocevic ◽  
Slobodan Jovanovic ◽  
Davor Panic ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Oxidation States ◽  
Support Surface ◽  
Active Centers ◽  
Active Centre ◽  
Whole Process ◽  
Oxidation Reduction ◽  
Donor And Acceptor ◽  
Donor Acceptor ◽  
A Charge

The oxidation state of the transition metal (Mt) active centre is the most disputable question in the polymerization of olefins by Ziegler-Natta (ZN) and metallocene complexes. In this paper the importance and the changes of the Mt active centers are presented and discussed on the basis of a charge percolation mechanism (CPM) of olefin polymerization. Mt atoms can exist in different oxidation states and can be easily transformed from one to another state during activation. In all cases, the Mt atoms are present in several oxidation states, i.e., Mt+(n-1), Mt+(n) to Mt+(n+1), producing an irregular charge distribution over the support surface. There is a tendency to equalize the oxidation states by a charge transfer from Mt+(n-1) (donor) to Mt+(n+1) (acceptor). This cannot occur since the different oxidation states are highly separated on the support. However, monomer molecules are adsorbed on the support producing clusters with stacked ?-bonds, making a ?-bond bridge between a donor and an acceptor. Once a bridge is formed (percolation moment), charge transfer occurs. The donor and acceptor equalize their oxidation states simultaneously with the polymerization of the monomer. The polymer chain is desorbed from the support, freeing the surface for subsequent monomer adsorption. The whole process is repeated with the oxidation-reduction of other donor-acceptor ensembles.

scholarly journals Ultra-Weak Cell Radiation as an Impulse to Activate Biological Signal Transmission Paths

2021 ◽  
Vol 4 (3) ◽  
Keyword(s):  
Quantum Mechanics ◽  
Charge Transfer ◽  
20Th Century ◽  
Signal Transmission ◽  
Molecular Structures ◽  
Atoms And Molecules ◽  
Biological Signal ◽  
Donor Acceptor ◽  
Molecular Signal ◽  
A Charge

Basic physical research at the beginning of the 20th century developed concepts of the energetic properties of atoms and molecules with quantum mechanics, which increasingly also included biological structures. Considerations of a “charge transfer” or also known as “donor-acceptor interactions” of the movement of electrons between molecular structures developed. This energetic process is the basis of the ultra-weak cell radiation, which is to be discussed as the basis for the activation of the molecular signal transmission.

The Coulomb Shift of the Charge Transfer Band in Donor- Acceptor Compounds

1981 ◽  
Vol 108 (2) ◽  
pp. 399-404
Author(s):  
I. D. Mikhailov ◽  
S. V. Novikov ◽  
A. V. Vannieov
Keyword(s):  
Charge Transfer ◽  
Charge Transfer Band ◽  
Donor Acceptor

On the Effect of a Single Solvent Molecule on the Charge-Transfer Band of a Donor–Acceptor Anion

2013 ◽  
Vol 135 (18) ◽  
pp. 6818-6821 ◽  
Author(s):  
Jørgen Houmøller ◽  
Marius Wanko ◽  
Kristian Støchkel ◽  
Angel Rubio ◽  
Steen Brøndsted Nielsen
Keyword(s):  
Charge Transfer ◽  
Charge Transfer Band ◽  
Solvent Molecule ◽  
Donor Acceptor
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