Synthesis and Phase Behavior of Liquid Crystalline Diphenylacetylene Derivatives Possessing High Clearing Temperatures
Molecular Crystals and Liquid Crystals
A series of diphenylacetylene derivatives were synthesized to serve as ligands for metal alkyne complexes. The target compounds, alkyl 4?-(4-phenylethynylbenzoyloxy)-biphenyl-4-carboxylates, were prepared using a three-step synthetic procedure. Both the diphenylacetylene derivatives as well as their immediate precursors, alkyl 4?-(4-iodobenzoyloxy)-biphenyl-4-carboxylates, exhibit liquid crystalline behavior. The diphenylacetylene derivatives possess large liquid crystalline phase ranges and high clearing temperatures. Synthetic details and the phase behavior of these compounds are discussed.
Young, Douglas D, Eric Scharrer, and Mark V. Yoa. "Synthesis and Phase Behavior of Liquid Crystalline Diphenylacetylene Derivatives Possessing High Clearing Temperatures." Molecular Crystals and Liquid Crystals. 408.1 (2003): 21-31. Print.