A counter ion triggers stabilization of two geometrical isomers of a Ni(ii) dication diradical porphyrin dimer: the role of anion–π interactions12. Issue 55 (20th June 2019)

• Record Type: Journal Article
• Authors: Pandey, Anjani Kumar; Usman, Mohammad; Rath, Sankar Prasad
• Is Part Of: Chemical communications. Volume 55:Issue 55(2019)
• Page Start: 7926
• Page End: 7929
• Publication Date: 2019-06-20
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c9cc02902h
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Two isomers of a nickel(ii )porphyrinato dication diradical, isolated selectively in pure form, are stabilized exclusively by anion–π interactions, have unique and distinct electronic and spectroscopic features and display an anion-induced charge/electron transfer phenomenon. Abstract : Two geometrical isomers of a nickel(ii ) dication diradical porphyrin dimer have been isolated selectively in pure forms by step-wise addition of the oxidant in the same reaction pot. Both isomers, stabilized exclusively by anion–π interactions, have unique and very distinct electronic and spectroscopic features and display an anion-induced charge/electron transfer phenomenon. Our work highlights the crucial role played by counter ions in controlling and stabilizing a variety of electronic structures and potentiates the effect of anion–π interactions in the chemical, biological and materials world.