title: Silver-guided excimer emission in an adenine-pyrene conjugate: fluorescence lifetime and crystal studies.
abstract: This Communication describes a novel adenine-pyrene conjugate (1) and its solid-state structure with silver and copper ions. Single-crystal studies of metal complexes of 1 offer insight into molecular interactions and provide a basis to rationalize possible interactions in the solution state, leading to excimer formation. The robust nature of this interaction was further confirmed by deposition of the silver complex on a graphite surface, which exhibited a remarkable resemblance to its solid-state structure. The structural basis of selective excimer formation in the presence of Ag(+) ions presents a viable approach for ratiometric detection of these ions.
authors.affiliation: Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India.
authors.forename: Mrituanjay D
authors.initials: MD
authors.lastname: Pandey
authors.forename: Ashutosh Kumar
authors.initials: AK
authors.lastname: Mishra
authors.forename: Vadapalli
authors.initials: V
authors.lastname: Chandrasekhar
authors.forename: Sandeep
authors.initials: S
authors.lastname: Verma
mesh_terms: D000225:Adenine / Q000737:chemistry*; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D003300:Copper / Q000032:analysis; D018360:Crystallography, X-Ray; D005453:Fluorescence; D008958:Models, Molecular; D008968:Molecular Conformation; D011721:Pyrenes / Q000737:chemistry*; D012834:Silver / Q000032:analysis* / Q000737:chemistry; D013050:Spectrometry, Fluorescence
chemical_list: D011721:Pyrenes; D012834:Silver; D003300:Copper; C030984:pyrene; D000225:Adenine