Charge-transfer complex versus σ-complex formed between TiO2and bis(dicyanomethylene) electron acceptors

2015 ◽  
Vol 17 (41) ◽  
pp. 27343-27356 ◽  
Author(s):  
Jun-ichi Fujisawa ◽  
Morio Nagata ◽  
Minoru Hanaya
Keyword(s):  
Titanium Dioxide ◽  
Charge Transfer ◽  
Hybrid Materials ◽  
Charge Transfer Complex ◽  
Electron Acceptors ◽  
Inorganic Hybrid ◽  
Complex Versus

A novel group of organic–inorganic hybrid materials is created by the combination of titanium dioxide (TiO2) nanoparticles with bis(dicyanomethylene) (TCNX) electron acceptors.

Gelification Effects on the Structure and Birefringence of Charge Transfer Complex Terthiophene Bisililated – TCNQ Hybrid Materials

2006 ◽  
Vol 517 ◽  
pp. 257-261
Author(s):  
N. Kancono ◽  
H.B. Senin
Keyword(s):  
Charge Transfer ◽  
Detection Limit ◽  
Hybrid Materials ◽  
Vibrational Spectra ◽  
Lamellar Structure ◽  
Radical Anion ◽  
Charge Transfer Complex ◽  
Visible Spectrum ◽  
Charge Transfer Complexes

Charge transfer complexes (CTC) can be readily introduced into materials by cohydrolysis-copolymerisation of bis-silylated ter-thiophenes as precursors with TMOS and TEOS in the presence of TCNQ. CTC formation is shown in the visible spectrum of the xerogel by the band at 850 nm characteristic of the TCNQ·- radical anion. Vibrational spectra have shown that strong vibration of C≡N bond at 2184, 2120 and 1595 cm-1 as peaks characteristics of CTC. The CTC bands are weak and the complex is easily destroyed by washing with acetone, which removes the TCNQ. The gelification effect of the charge transfer complexes on the hybrid materials of 2,5’’- bis(trime thoxysilyl)terthiophene/TCNQ/ TMOS showed that the peak with distance of more than 11.68 Å, formed by precursors and matrices, as a lamellar structure. The birefringence of xerogel BTS3T in presence of alkoxysilane showed that the value is near the detection limit of 0.1 – 0.4 x 10-3, which is weaker than BTS3T / THF with the birefringence value of 4.5 x 10-3.

Ground-state charge-transfer complex formation in hybrid poly(3-hexyl thiophene):titanium dioxide solar cells

2008 ◽  
Vol 93 (22) ◽  
pp. 223302 ◽  
Author(s):  
I. Haeldermans ◽  
K. Vandewal ◽  
W. D. Oosterbaan ◽  
A. Gadisa ◽  
J. D’Haen ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Solar Cells ◽  
Charge Transfer ◽  
Complex Formation ◽  
Ground State ◽  
Charge Transfer Complex ◽  
State Charge

scholarly journals Influence of acceptor functionality on charge transfer interactions in mixtures of poly(9-vinylcarbazole) with nitroaromatic compounds

2012 ◽  
Vol 10 (2) ◽  
pp. 313-319 ◽  
Author(s):  
Anca Grigoras ◽  
Virgil Barboiu
Keyword(s):  
Molecular Weight ◽  
Charge Transfer ◽  
Complex Formation ◽  
Charge Transfer Complex ◽  
Average Molecular Weight ◽  
Nitro Compounds ◽  
Nitroaromatic Compounds ◽  
Association Constants ◽  
Electron Acceptors ◽  
Weight Average Molecular Weight

AbstractCharge transfer interactions in mixtures of poly(9-vinylcarbazole) with three nitro compounds (4,4′dinitrodibenzyl, ethyl 3,5-dinitrobenzoate and 2,2′,4,4′-tetranitrodibenzyl) were examined. GPC shows an increase of apparent polymer weight average molecular weight (MW) in mixtures compared with pure PVK. Electron acceptors show upfield 1H-NMR shifts for all mixtures. The equilibrium association constants (k) calculated from the Benesi-Hildebrand equation are 0.511, 1.371, and 1.868 L mol−1 for PVK blends with DNDB, DNBE and TNDB, respectively. Shifts of (−NO2) stretch vibrations in mixtures support charge transfer complex formation between PVK chains and electron acceptors The ability to accept electrons decreases: TNDB>DNBE>DNDB.

Inorganic–organic hybrid sorbent for aromatic desulfurization of hydrocarbons: regenerative adsorption based on a charge-transfer complex

RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 85381-85389 ◽  
Author(s):  
Mahsa Armaghan ◽  
Mostafa M. Amini ◽  
Hamid R. Khavasi ◽  
Wen-Hua Zhang ◽  
Siek Weng Ng
Keyword(s):  
Charge Transfer ◽  
Hybrid Materials ◽  
Charge Transfer Complex ◽  
Organic Hybrid ◽  
Hybrid Sorbent ◽  
A Charge

Inorganic–organic hybrid materials for aromatic desulfurization based on the charge-transfer complex (CTC) of 4,6-dimethyldibenzothiophene:1,5-dichloro-4,8-dinitro-anthraquinone.

scholarly journals Charge transfer tuning in TiO2 hybrid nanostructures with acceptor–acceptor systems

2017 ◽  
Vol 5 (9) ◽  
pp. 2415-2424 ◽  
Author(s):  
K. Pilarczyk ◽  
K. Lewandowska ◽  
K. Mech ◽  
M. Kawa ◽  
M. Gajewska ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Graphene Oxide ◽  
Charge Transfer ◽  
Electron Acceptors ◽  
Hybrid Nanostructures ◽  
Fine Tuning ◽  
Photoelectrochemical Properties ◽  
Chloranilic Acid ◽  
Ternary Nanocomposite

The interplay between titanium dioxide and two electron acceptors (graphene oxide and chloranilic acid) results in the fine-tuning of photoelectrochemical properties of the ternary nanocomposite.

scholarly journals Preparation of novel polyimide hybrid materials by multi-layered charge-transfer complex formation

2012 ◽  
Vol 45 (8) ◽  
pp. 839-844 ◽  
Author(s):  
Ryohei Watari ◽  
Masamichi Nishihara ◽  
Hiroo Tajiri ◽  
Hideyuki Otsuka ◽  
Atsushi Takahara
Keyword(s):  
Charge Transfer ◽  
Complex Formation ◽  
Hybrid Materials ◽  
Charge Transfer Complex ◽  
Layered Charge
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