7584-72-7Relevant articles and documents
Dynamics of Meso–Chiral Interconversion in a Butterfly-Shape Overcrowded Alkene Rotor Tunable by Solvent Properties
Futera, Zdeněk,Kartha, Kalathil K.,Labuta, Jan,Takai, Atsuro,Takeuchi, Masayuki
, p. 16466 - 16471 (2021)
Elucidation of dynamics of molecular rotational motion is an essential part and challenging area of research. We demonstrate reversible diastereomeric interconversion of a molecular rotor composed of overcrowded butterfly-shape alkene (FDF). Its inherent dual rotatory motion (two rotors, one stator) with interconversion between two diastereomers, chiral trans-FDF and meso cis-FDF forms, has been examined in detail upon varying temperatures and solvents. The free energy profile of 180° revolution of one rotor part has a bimodal shape with unevenly positioned maxima (transition states). FDF in aromatic solvents adopts preferentially meso cis-conformation, while in non-aromatic solvents a chiral trans-conformation is more abundant owing to the solvent interactions with peripheral hexyl chains (solvophobic effect). Moderate correlations between the trans-FDF/cis-FDF ratio and solvent parameters, such as refractive index, polarizability, and viscosity were found.
Thioether- and sulfone-functionalized dibenzopentalenes as n-channel semiconductors for organic field-effect transistors
Hermann, Mathias,Wu, Ruihan,Grenz, David C.,Kratzert, Daniel,Li, Hanying,Esser, Birgit
, p. 5420 - 5426 (2018/05/30)
Dibenzo[a,e]pentalenes (DBPs) are promising candidates to be used as ambipolar or n-type semiconductors in organic field-effect transistors (OFETs). For n-channel conduction, low LUMO energy levels are required. Furthermore, a close molecular packing in t
Condensed-cyclic compound and organic light-emitting diode including the condensed-cyclic compound
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Page/Page column 76; 77; 78, (2017/01/26)
A condensed-cyclic compound and an organic light-emitting diode including the condensed-cyclic compound.