title: Unique emission from norbornene derived terpyridine--a selective chemodosimeter for G-type nerve agent surrogates.
abstract: A new chemodosimeter for a G-type agent that exploits norbornene derived terpyridine (NDT)-lanthanide unique emission is reported. The unusual emission between terpyridine and norbornene motifs of NDT is attributed to the significant difference in the position of the HOMO and LUMO wave functions that prevents the non-radiative relaxation pathway. An interesting magenta emission from NDT along with Eu(III) is utilized as a new fluorometric chemodosimeter that selectively detects (by changing the observed magenta emission to blue) G-type agent surrogates. A detection limit of 40 ppb is obtained and the selectivity for reactive surrogates over a variety of other close chemical analogs is demonstrated.
authors.affiliation: Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, India.
authors.forename: Santu
authors.initials: S
authors.lastname: Sarkar
authors.forename: Arobendo
authors.initials: A
authors.lastname: Mondal
authors.forename: Ashwani Kumar
authors.initials: AK
authors.lastname: Tiwari
authors.forename: Raja
authors.initials: R
authors.lastname: Shunmugam