title: Synthesis, characterization and fluorescence turn-on behavior of new porphyrin analogue: meta-benziporphodimethenes.
abstract: New fluorescence switch-on meso-substituted free base meta-benziporphodimethenes were synthesized, characterized via acid catalyzed condensation reaction and metallated with Zn(2+). Their photophysical properties were also studied. The fluorescence spectra analysis demonstrates substituent's independent behaviour on emitting λmax. The average Stokes shift of 33nm was observed. Crystal structure of 8 was obtained and gave expected perturbed geometry.
authors.affiliation: Department of Applied Chemistry, Delhi Technological University, Bawana Road, Delhi, India.
authors.forename: Ravi Kumar
authors.initials: RK
authors.lastname: Sharma
authors.affiliation: Department of Applied Chemistry, Delhi Technological University, Bawana Road, Delhi, India.
authors.forename: Lale Kiran
authors.initials: LK
authors.lastname: Gajanan
authors.affiliation: Department of Applied Physics, Delhi Technological University, Bawana Road, Delhi, India.
authors.forename: Mohan Singh
authors.initials: MS
authors.lastname: Mehata
authors.affiliation: Department of Chemistry, University of Delhi, India.
authors.forename: Firasat
authors.initials: F
authors.lastname: Hussain
authors.affiliation: Department of Applied Chemistry, Delhi Technological University, Bawana Road, Delhi, India. Electronic address: anil_kumar@dce.ac.in.
authors.forename: Anil
authors.initials: A
authors.lastname: Kumar
keywords: Cell imaging; Fluorescence; Porphyrinoid; Quantum yield