Exceptional solid‐state properties of organic 2:1 donor–acceptor metals with integral charge transfer

1991 ◽  
Vol 94 (8) ◽  
pp. 5631-5642 ◽  
Author(s):  
Michael C. Böhm
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Donor Acceptor

scholarly journals PAH/PAH(CF 3 ) n Donor/Acceptor Charge‐Transfer Complexes in Solution and in Solid‐State Co‐Crystals

2019 ◽  
Vol 25 (59) ◽  
pp. 13547-13565 ◽  
Author(s):  
Karlee P. Castro ◽  
Eric V. Bukovsky ◽  
Igor V. Kuvychko ◽  
Nicholas J. DeWeerd ◽  
Yu‐Sheng Chen ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Charge Transfer Complexes ◽  
Donor Acceptor

Investigation of Charge-Transfer Interaction in Mixed Stack Donor–Acceptor Cocrystals Toward Tunable Solid-State Emission Characteristics

2018 ◽  
Vol 18 (10) ◽  
pp. 6001-6008 ◽  
Author(s):  
Rabia Usman ◽  
Arshad Khan ◽  
Mingliang Wang ◽  
Yi Luo ◽  
Weiwei Sun ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Emission Characteristics ◽  
Charge Transfer Interaction ◽  
Donor Acceptor

scholarly journals Controlling charge separation in a novel donor–acceptor metal–organic framework via redox modulation

2014 ◽  
Vol 5 (12) ◽  
pp. 4724-4728 ◽  
Author(s):  
C. F. Leong ◽  
B. Chan ◽  
T. B. Faust ◽  
D. M. D'Alessandro
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Charge Separation ◽  
Metal Organic Framework ◽  
Redox Modulation ◽  
Naphthalene Diimide ◽  
Computational Calculations ◽  
Donor Acceptor ◽  
Metal Organic ◽  
Organic Framework

Donor–acceptor charge transfer interactions in a tetrathiafulvalene–naphthalene diimide-based metal–organic framework (MOF) are interrogated using a complementary suite of solid state spectroscopic, electrochemical and spectroelectrochemical methods along with computational calculations.

Synthesis, electronic spectroscopy, and evaluation of photoconducting oligomers with pendant bichromophores. Part 1. Influence of donor–acceptor orbital overlap on aggregate emission and photoactivity

1990 ◽  
Vol 68 (6) ◽  
pp. 908-925 ◽  
Author(s):  
D. Gravel ◽  
S. Gauthier ◽  
F. Brisse ◽  
S. Raymond ◽  
M. D'Amboise ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Electronic Spectroscopy ◽  
Spectroscopic Properties ◽  
Intramolecular Electron Transfer ◽  
Aggregation Effect ◽  
Conformational Effects ◽  
Donor Acceptor ◽  
Small Aggregation ◽  
Photoconducting Polymers

The synthesis, electronic spectroscopy, and photoactivity of two polysebacate oligomers with pendant donor–acceptor bichromophores of the alkylcarbazole–dinitrofluorene type (P1) and the alkylcarbazole–trinitrofluorenone carboxylic acid ester type (P2) are reported. The crystal structure of the basic acceptor chromophore A2 and donor-acceptor bichromophore B2 of oligomer P2 are also reported. In bichromophore B2, the amount of overlap is evaluated at 50% while the distance between the donor and the acceptor is 3.42 Å. It is shown that while no ground state intramolecular charge-transfer interaction takes place in the bichromophore B1 of oligomer P1 itself (in solution or the solid state), aggregates (acceptor–acceptor) are present in 3MP and in the solid state. The spectrum of oligomer P1 in low temperature 3MP matrices indicates a small aggregation effect while aggregate fluorescence of bichromophore B1 and oligomer P1 is observed in the solid state. Absorption spectra show that bichromophores B2 and B2a and oligomer P2 give rise to charge-transfer bands with maxima at around 550 and 450 nm in CH3CN and 590 and 470 nm in the solid state. The fluorescence and the phosphorescence of the carbazolyl chromophore and the phosphorescence of the 2,4,7-trinitro-9-fluorenone chromophore are quenched for B2, B2a, and P2 in EPA but a structureless emission is observed between 500 and 680 nm in the solid state that can be assigned to aggregate fluorescence. The negative values of ΔGET indicate that intramolecular electron transfer in bichromophores B1, B2, and B2a should be highly probable on thermodynamic grounds if optimal orbital overlap is available. The spectroscopic properties of the bichromophoric compounds studied are discussed on the basis of conformational effects. The photoactivity evaluation of oligomers P1 and P2 shows that P2 is more photoactive than P1 due, mainly, to better orbital overlap between the donor and the acceptor moieties in oligomer P2 as compared to oligomer P1. Furthermore, a comparison of P1 and P2 to a standard PVK–TNF system reveals that the latter is much more photoactive due, again, mainly to better orbital overlap. Finally, the relative efficiencies of these systems as hole or electron conductors is discussed. Keywords: photoconducting polymers, donor–acceptor bichromophores, bichromophores, substituted carbazoles, poly-nitrofluorene derivatives.

scholarly journals Polymorph crystal packing effects on charge transfer emission in the solid state

2015 ◽  
Vol 6 (6) ◽  
pp. 3525-3532 ◽  
Author(s):  
Xiaoyan He ◽  
Andrew C. Benniston ◽  
Hanna Saarenpää ◽  
Helge Lemmetyinen ◽  
Nikolia V. Tkachenko ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Diethyl Ether ◽  
Crystal Packing ◽  
Naphthalic Anhydride ◽  
Ether Mixture ◽  
Donor Acceptor ◽  
Crystal Packing Effects ◽  
Packing Effects

Condensation of 1,8-naphthalic anhydride with N,N-(dimethylamino)aniline produced the donor-acceptor compound DMIM, which crystallised from a chloroform–diethyl ether mixture to afford two different coloured crystal polymorphs.

Ultrafast Charge Transfer and Relaxation at a Donor–Acceptor Interface

2021 ◽  
Author(s):  
Fernando Rodríguez Díaz ◽  
Hong-Guang Duan ◽  
R. J. Dwayne Miller ◽  
Michael Thorwart
Keyword(s):  
Charge Transfer ◽  
Donor Acceptor ◽  
Ultrafast Charge Transfer

Carbazole-modified thiazolo[3,2-c][1,3,5,2]oxadiazaborinines exhibiting aggregation-induced emission and mechanofluorochromism

2021 ◽  
Author(s):  
Mykhaylo A. Potopnyk ◽  
Mykola Kravets ◽  
Roman Luboradzki ◽  
Dmytro Volyniuk ◽  
Volodymyr Sashuk ◽  
...  
Keyword(s):  
Solid State ◽  
Fluorescence Properties ◽  
Aggregation Induced Emission ◽  
Donor Acceptor ◽  
Solid State Fluorescence ◽  
Active Donor

Two novel AIE-active donor–acceptor organoboron complexes with a carbazole donor unit are developed and their morphology-dependent solid-state fluorescence properties are established.

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