Excimer emission based on the control of molecular structure and intermolecular interactions

2016 ◽  
Vol 4 (14) ◽  
pp. 2784-2792 ◽  
Author(s):  
Jaehyun Lee ◽  
Hyocheol Jung ◽  
Hwangyu Shin ◽  
Joonghan Kim ◽  
Daisuke Yokoyama ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Intermolecular Interactions ◽  
Excimer Emission ◽  
Oled Device ◽  
Center Position ◽  
Excimer Formation

The wavelength of excimer formation and efficiency of an OLED device were controlled through the change of the center position of the triple-core chromophore.

The molecular structure and intermolecular interactions of 1,3:2,4-dibenzylidene-D-sorbitol

2003 ◽  
Vol 101 (19) ◽  
pp. 3017-3027 ◽  
Author(s):  
ELIZABETH A. WILDER ◽  
RICHARD J. SPONTAK ◽  
CAROL K. HALL
Keyword(s):  
Molecular Structure ◽  
Intermolecular Interactions

Einfluß der Deuterierung auf die Excimerenkinetik des Pyrens

1976 ◽  
Vol 31 (8) ◽  
pp. 990-994
Author(s):  
Günther Heidt
Keyword(s):  
Partition Function ◽  
Rate Constants ◽  
Formation Rate ◽  
Kinetic Constants ◽  
Theoretical Expectation ◽  
Excimer Emission ◽  
Anomalous Effect ◽  
Excimer Formation ◽  
Pyrene Excimer Formation

AbstractThe effect of deuteration on all six photophysical and kinetic constants of pyrene excimer formation is investigated. The rate constants of monomer and excimer emission and the rate of dissociation of the excimer are not affected by deuteration. The increase of the radiationless deactivation of the monomer (anomalous effect) agrees with the theoretical expectation. The radiationless deactivation of the excimer at various temperatures shows no effect and therefore does not take place via the excimer triplet. The decrease of the excimer formation rate can be explained by the effect of deuteration on the partition function and hence on the entropy.

Energy Transfer in Organic Dendrimer Antenna Funnel and Anti-Funnel Supermolecules

1998 ◽  
Vol 543 ◽  
Author(s):  
Stephen F. Swallen ◽  
Raoul Kopelman ◽  
Jeffrey S. Moore
Keyword(s):  
Molecular Structure ◽  
Energy Transfer ◽  
Steady State ◽  
Intermolecular Interactions ◽  
Molecular Geometry ◽  
Intramolecular Energy Transfer ◽  
Fluorescence Studies ◽  
Energy Trapping ◽  
Exciton Localization ◽  
Steady State Fluorescence

AbstractThe photophysics of exciton localization and energy transfer are examined in two unique classes of phenylacetylene dendrimers. One set of supermolecules is observed to efficiently and rapidly funnel absorbed radiation toward the molecular locus, while a slight change in molecular structure creates an effective “anti-funnel”, greatly reducing the efficiency of energy trapping. Lifetime-based and steady state fluorescence studies are used to determine the rates of intramolecular energy transfer and to glean information on molecular geometry and intermolecular interactions in two solvents.

scholarly journals Crystal structure of 3-ferrocenyl-1-phenyl-1H-pyrrole, [Fe(η5-C5H4cC4H3NPh)(η5-C5H5)]

2016 ◽  
Vol 72 (1) ◽  
pp. 92-95 ◽  
Author(s):  
Ulrike Pfaff ◽  
Marcus Korb ◽  
Heinrich Lang
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Intermolecular Interactions ◽  
Title Compound ◽  
Phenyl Ring

The molecular structure of the title compound, [Fe(C5H5)(C15H12N)], consists of a ferrocene moiety with anN-phenylpyrrole heterocycle bound to one cyclopentadienyl ring. The 1,3-disubstitution of the pyrrole results in an L-shaped arrangement of the molecule with plane intersections of 2.78 (17)° between the pyrrole and theN-bonded phenyl ring and of 8.17 (18)° between the pyrrole and the cyclopentadienyl ring. In the crystal, no remarkable intermolecular interactions are observed

scholarly journals Crystal structure of 1,1,2,2-tetramethyl-1,2-bis(2,3,4,5-tetramethylcyclopenta-2,4-dien-1-yl)disilane

2015 ◽  
Vol 71 (11) ◽  
pp. o888-o888 ◽  
Author(s):  
Christian Godemann ◽  
Anke Spannenberg ◽  
Torsten Beweries
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Bond Length ◽  
Intermolecular Interactions ◽  
Torsion Angle ◽  
Title Compound ◽  
Molecular Packing ◽  
Steric Strain ◽  
Compound C ◽  
Supramolecular Chains

The molecular structure of the title compound, C22H38Si2, features atransarrangement of the cyclopentadienyl rings to avoid steric strain [C—Si—Si—C torsion angle = −179.0 (5)°]. The Si—Si bond length is 2.3444 (4) Å. The most notable intermolecular interactions in the molecular packing are C—H...π contacts that lead to the formation of wave-like supramolecular chains along thebaxis.

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