title: Optoelectronic tuning of organoborylazadipyrromethenes via effective electronegativity at the metalloid center.
abstract: Organoborylazadipyrromethenes were synthesized from free base and fluoroborylazadipyrromethenes and characterized with regard to their structural and electronic properties. B-N bond lengths, along with photophysical and redox behavior, appear dependent on the effective electronegativity at the boron atom as tuned by its substituents, with stronger electronegativity correlating to a shorter B-N bond length, red-shifted absorbance, enhanced fluorescence lifetime and yield, and positively shifted redox potentials.
authors.affiliation: Department of Chemistry, University of North Texas , Denton, Texas 76203, United States.
authors.forename: Seare A
authors.initials: SA
authors.lastname: Berhe
authors.forename: Marco T
authors.initials: MT
authors.lastname: Rodriguez
authors.forename: Eunsol
authors.initials: E
authors.lastname: Park
authors.forename: Vladimir N
authors.initials: VN
authors.lastname: Nesterov
authors.forename: Hongjun
authors.initials: H
authors.lastname: Pan
authors.forename: W Justin
authors.initials: WJ
authors.lastname: Youngblood
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D001372:Aza Compounds / Q000737:chemistry*; D001895:Boron / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004563:Electrochemistry; D008027:Light; D015394:Molecular Structure; D011758:Pyrroles / Q000737:chemistry*
chemical_list: D000475:Alkenes; D001372:Aza Compounds; D056831:Coordination Complexes; D011758:Pyrroles; D001895:Boron