title: Bicycle pedal photoisomerization of 1-phenyl-4-(4-pyridyl)-1,3-butadienes in glassy isopentane at 77 K.
abstract: In glassy isopentane at 77 K, 1-phenyl-4-(4-pyridyl)-cis-1,cis-3-butadiene (cc-PPyB) and 1-phenyl-4-(4-pyridyl)-cis-1,trans-3-butadiene (ct-PPyB) can undergo simultaneous two-bond photoisomerization. Under the same conditions, 1-phenyl-4-(4-pyridyl)-trans-1,cis-3-butadiene (tc-PPyB) gives tt-PPyB, the ultimate photoproduct in all cases.
authors.affiliation: Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, Florida 32306-4390, USA. saltiel@chem.fsu.edu.
authors.forename: Christopher E
authors.initials: CE
authors.lastname: Redwood
authors.forename: Sriram
authors.initials: S
authors.lastname: Kanvah
authors.forename: Ramakrishna
authors.initials: R
authors.lastname: Samudrala
authors.forename: Jack
authors.initials: J
authors.lastname: Saltiel
mesh_terms: D002070:Butadienes / Q000138:chemical synthesis / Q000737:chemistry*; D007536:Isomerism; D008027:Light; D010420:Pentanes / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature
chemical_list: D002070:Butadienes; D010420:Pentanes; C067038:isopentane