title: Ring Opening of a meso-Triaryl 25-Oxasmaragdyrin Macrocycle by m-Chloroperoxybenzoic Acid.
abstract: Smaragdyrin, a class of expanded porphyrin macrocycles, upon treatment with meta-chloroperoxybenzoic acid (mCPBA) underwent oxidative ring opening to form an unprecedented linear pentaheterocyclic compound. The linear pentaheterocyclic compound was freely soluble in common organic solvents and characterized in detail by HRMS, 1D and 2D NMR spectroscopy, and X-ray crystallography. Our preliminary studies indicated that the linear pentaheterocyclic compound can specifically sense anions such as H2PO4-and CN-ions, which was corroborated by absorption and fluorescence studies.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Powai, Mumbai, 400076, India.
authors.forename: Hemanta
authors.initials: H
authors.lastname: Kalita
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Powai, Mumbai, 400076, India.
authors.forename: Avijit
authors.initials: A
authors.lastname: Ghosh
authors.affiliation: Instrumentation Center, Department of Chemistry, National Taiwan Normal University, 88 Sec. 4 Ting-Chow Road, Taipei, 11677, Taiwan.
authors.forename: Way-Zen
authors.initials: WZ
authors.lastname: Lee
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Powai, Mumbai, 400076, India. ravikanth@chem.iitb.ac.in.
authors.forename: Mangalampalli
authors.initials: M
authors.lastname: Ravikanth
keywords: anion sensing; isosbestic point; meta-chloroperoxybenzoic acid; ring-opening reactions; smaragdyrin