title: Synthesis and spectroscopic studies of a new 1,8-naphthalimide dyad as detector for metal cations and protons.
abstract: A new dyad containing two 1,8-naphthalimides has been synthesized. N,N-Dimetylaminoethylamino group has been used as substituent at C-4 position of the 1,8-naphthalimide chromophore structure. The photophysical characteristics of the dyad have been investigated in organic solvents with different polarity. In acetonitrile solution the newly synthesized dyad enhance its fluorescent intensity in the presence of metal cations (Ni(2+), Co(2+), Cu(2+), Pb(2)(+), Zn(2+), Fe(3+)) and protons due to quenching of photoinduced electron transfer.
authors.affiliation: Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria.
authors.forename: Desislava
authors.initials: D
authors.lastname: Staneva
authors.forename: Mark
authors.initials: M
authors.lastname: McKena
authors.forename: Paula
authors.initials: P
authors.lastname: Bosch
authors.forename: Ivo
authors.initials: I
authors.lastname: Grabchev
mesh_terms: D002412:Cations / Q000032:analysis*; D008670:Metals / Q000032:analysis*; D053644:Naphthalimides / Q000138:chemical synthesis / Q000737:chemistry*; D010777:Photochemistry; D011522:Protons; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D002412:Cations; D008670:Metals; D053644:Naphthalimides; D011522:Protons