Synthesis and certain conversions of sulfides of the thiophene series Communication 26. Magnetic susceptibility and absorption spectra of chelates of Co(II) and Ni(II) with certain derivatives of thiophene

1973 ◽  
Vol 22 (7) ◽  
pp. 1472-1474 ◽  
Author(s):  
L. G. Bogdanova ◽  
V. V. Zelentsov ◽  
M. A. Kalik ◽  
Ya. L. Gol'dfarb ◽  
V. A. Petukhov
Keyword(s):  
Magnetic Susceptibility ◽  
Absorption Spectra ◽  
Thiophene Series ◽  
Derivatives Of ◽  
Series Communication

Polarographic half-wave potentials and ultraviolet absorption spectra of some conjugated heteroenoid compounds

1969 ◽  
Vol 47 (21) ◽  
pp. 4076-4083 ◽  
Author(s):  
H. L. Holmes ◽  
D. J. Currie
Keyword(s):  
Absorption Spectra ◽  
Functional Groups ◽  
Ultraviolet Absorption ◽  
Half Wave ◽  
Active Methylene Compounds ◽  
Derivatives Of ◽  
Active Methylene ◽  
Hammett Relationship

The half-wave potentials of phenyl substituted derivatives for each series of conjugated heteroenoid compounds studied follow a Hammett relationship. The effect of change in the functional groups and of increase in length of the conjugated system upon half-wave potentials and ultraviolet absorption maxima is briefly discussed. Terephthalylidene derivatives of active methylene compounds function like the cinnamylidene derivatives.

Molecular Packing-Dependent Exciton and Polariton Dynamics in Anthradithiophene Organic Crystals

MRS Advances ◽  
2018 ◽  
Vol 3 (59) ◽  
pp. 3465-3470 ◽  
Author(s):  
Jonathan D B Van Schenck ◽  
Gregory Giesbers ◽  
Akash Kannegulla ◽  
Li-Jing Cheng ◽  
John E. Anthony ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Energy Absorption ◽  
Absorption Spectra ◽  
Organic Crystals ◽  
Optical Microcavities ◽  
Enhanced Absorption ◽  
Excitonic Transition ◽  
Dependent Absorption ◽  
Derivatives Of ◽  
Primary Contribution

AbstractPolarization-dependent absorption spectra of two functionalized derivatives of fluorinated anthradithiophene, diF TES-ADT and diF TDMS-ADT, were studied in the crystal phase using a Holstein-like Hamiltonian. For both molecules, the primary contribution to the lowest energy absorption was found to be the S0-S1 excitonic transition perturbed by an intermolecular coupling of 15 meV for both TES and TDMS. A secondary contribution, consistent with that from charge-transfer states, was also found. Additionally, absorption spectra were analysed when crystals were placed inside of optical microcavities formed by two metal mirrors. Cavities exhibited a primary absorption peak determined to be an enhanced absorption from the lowest-energy S0-S1 transition.

The Absorption Spectra of Some N-Acetyl Derivatives of p,p'- Diaminotriphenylmethane Dyes

1947 ◽  
Vol 69 (8) ◽  
pp. 1978-1985
Author(s):  
Estella R. Katzenellenbogen ◽  
Gerald E. K. Branch
Keyword(s):  
Absorption Spectra ◽  
Derivatives Of
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