%0 Journal Article %T Linear and Angular Distyrylpyrazines with Terminal Donor Groups: Synthesis, Solvatochromism, and Acidochromism of the Electronic Spectra %A Volker Schmitt %A Janina Fischer %A Heiner Detert %J ISRN Organic Chemistry %D 2011 %I Hindawi Publishing Corporation %R 10.5402/2011/589012 %U http://dx.doi.org/10.5402/2011/589012