title: Near-infrared light activated azo-BF2 switches.
abstract: Increasing the electron density in BF2-coodinated azo compounds through para-substitution leads to a bathochromic shift in their activation wavelength. When the substituent is dimethyl amine, or the like, the trans/cis isomerization process can be efficiently modulated using near infrared light. The electron donating capability of the substituent also controls the hydrolysis half-life of the switch in aqueous solution, which is drastically longer for the cis isomer, while the BF2-coodination prevents reduction by glutathione.
authors.affiliation: Department of Chemistry, Dartmouth College , Hanover, New Hampshire 03755, United States.
authors.forename: Yin
authors.initials: Y
authors.lastname: Yang
authors.forename: Russell P
authors.initials: RP
authors.lastname: Hughes
authors.forename: Ivan
authors.initials: I
authors.lastname: Aprahamian
mesh_terms: D001391:Azo Compounds / Q000737:chemistry*; D001896:Boron Compounds / Q000737:chemistry*; D054879:Halogenation; D006868:Hydrolysis; D007259:Infrared Rays; D007536:Isomerism; D008958:Models, Molecular; D010084:Oxidation-Reduction
chemical_list: D001391:Azo Compounds; D001896:Boron Compounds