title: Reversible mechanochromism and enhanced AIE in tetraphenylethene substituted phenanthroimidazoles.
abstract: Tetraphenylethene (TPE) substituted phenanthroimidazoles 3a and 3b were designed and synthesized by the Suzuki cross-coupling reaction. They show reversible mechanochromic behavior with contrast colors between sky-blue and yellow green. The powder XRD studies show that destruction of a crystalline state into an amorphous state is responsible for mechanochromism. Hydrogen bonding interaction of a cyano-group in 3b results in enhanced AIE and improved thermal stability.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Indore, Madhya Pradesh Indore-452 017, India. rajneeshmisra@iiti.ac.in.
authors.forename: Rajneesh
authors.initials: R
authors.lastname: Misra
authors.forename: Thaksen
authors.initials: T
authors.lastname: Jadhav
authors.forename: Bhausaheb
authors.initials: B
authors.lastname: Dhokale
authors.forename: Shaikh M
authors.initials: SM
authors.lastname: Mobin