title: Synthesis of a ruthenium(II) bipyridyl complex coordinated by a functionalized Schiff base ligand: characterization, spectroscopic and isothermal titration calorimetry measurements of M2+ binding and sensing (M2+=Ca2+, Mg2+).
abstract: Bis-[methylsalicylidine-4'benzoic acid]-ethylene (LH2) complexed with cis-Ru(bpy)2Cl(2).2H2O provides a complex of composition [Ru(bpy)2L].2NH4PF6 (1), which has been characterized spectroscopically. Its binding behaviour towards Mg2+ and Ca2+ ions is monitored using 1H NMR titration, isothermal titration calorimetry (ITC) and luminescence microscopy. The luminescent ruthenium complex binds Ca2+ in a more selective manner as compared to Mg2+.
authors.affiliation: Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi- 221 005, India.
authors.forename: Namrata
authors.initials: N
authors.lastname: Dixit
authors.forename: Lallan
authors.initials: L
authors.lastname: Mishra
authors.forename: Sourajit M
authors.initials: SM
authors.lastname: Mustafi
authors.forename: Kandala V R
authors.initials: KV
authors.lastname: Chary
authors.forename: Hirohiko
authors.initials: H
authors.lastname: Houjou
mesh_terms: D015082:2,2'-Dipyridyl / Q000032:analysis* / Q000138:chemical synthesis* / Q000737:chemistry; D002118:Calcium / Q000737:chemistry*; D002151:Calorimetry; D002413:Cations, Divalent / Q000737:chemistry; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D008345:Manganese / Q000737:chemistry*; D015394:Molecular Structure; D017975:Ruthenium Compounds / Q000032:analysis* / Q000138:chemical synthesis* / Q000737:chemistry; D012545:Schiff Bases / Q000737:chemistry; D013053:Spectrophotometry; D017186:Titrimetry
chemical_list: D002413:Cations, Divalent; D008024:Ligands; D017975:Ruthenium Compounds; D012545:Schiff Bases; D008345:Manganese; D015082:2,2'-Dipyridyl; D002118:Calcium