Mu, Anthony U.; Kim, Yeon-Ju; Miranda, Octavio; Vazquez, Mariela; Strzalka, Joseph; Xu, Jie; Fang, Lei published the artcile< Hydrogen-Bond-Promoted Planar Conformation, Crystallinity, and Charge Transport in Semiconducting Diazaisoindigo Derivatives>, Application of C19H34O2, the main research area is semiconducting diazaisoindigo derivative field effect transistor hydrogen bond conjugation.
Conformational control of π-conjugated mols. using intramol. noncovalent bonds represents a promising strategy to tailor the solid-state mol. packing and electronic properties of these materials. Here, we report the design and synthesis of two model compounds featuring intramol. hydrogen bonds formed between a center diazaisoindigo unit (the acceptor) and flanking indole units (the donor). Computational and exptl. investigations show that these hydrogen bonds enthalpically stabilize the coplanar mol. conformation by >10 kcal/mol. The formation of these hydrogen bonds is also slightly favorable in terms of entropy, ensuring the high-temperature stability of the planar conformation. Thermal annealing of thin films of these compounds imparts high crystallinity and orientation in the solid state, while the non-hydrogen bond control only gave an amorphous solid. Field-effect transistor devices fabricated from these thin films exhibit hole mobilities up to 0.270 cm2 V-1 s-1, in contrast to the lack of measurable charge carrier mobility for the non-hydrogen bond control. This work demonstrates an efficient synthetic strategy to incorporate robust intramol. hydrogen bonds into conjugated π-systems and elucidates the mechanism on how such hydrogen bonds promote the desired mol. conformation, solid-state packing, and electronic performances of conjugated organic materials.
ACS Materials Letters published new progress about Annealing. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics