title: Structural effects on the electronic properties of extended fused-ring thieno[3,4-b]pyrazine analogues.
abstract: The synthesis and characterization of the extended thieno[3,4-b]pyrazine analogues acenaphtho[1,2-b]thieno[3,4-e]pyrazine (3a), 3,4-dibromoacenaphtho[1,2-b]thieno[3,4-e]pyrazine (3b), 3-octylacenaphtho[1,2-b]thieno[3,4-e]pyrazine (3c), dibenzo[f,h]thieno[3,4-b]quinoxaline (4), and thieno[3',4':5,6]pyrazino[2,3-f][1,10]phenanthroline (5) are reported. Comparison of structural, electrochemical, and photophysical properties to those of simple thieno[3,4-b]pyrazines are provided in order to provide structure-function relationships within this series of compounds.
authors.affiliation: Department of Chemistry and Biochemistry, North Dakota State University, Dept. 2735, PO Box 6050, Fargo, North Dakota 58108, USA.
authors.forename: Jon P
authors.initials: JP
authors.lastname: Nietfeld
authors.forename: Ryan L
authors.initials: RL
authors.lastname: Schwiderski
authors.forename: Thomas P
authors.initials: TP
authors.lastname: Gonnella
authors.forename: Seth C
authors.initials: SC
authors.lastname: Rasmussen