A New Luminescent Ruthenium(II) Polypyridine‐derived Dipicolylamine Complex as a Sensor for Cu²⁺ Ions

Abstract

A chemo-sensor [Ru(bpy) 2 (bpy-DPF)](PF 6 ) 2 (1) (bpy ＝ 2,2'-bipyridine, bpy-DPF ＝ 2,2'-bipyridyl-4,4'-bis(N,N-di(2-picolyl))formylamide) for Cu 2＋ using di(2-picolyl)amine (DPA) as the recognition group and a ruthenium(II) complex as the reporting group was synthesized and characterized successfully. It demonstrates a high selectivity and efficient signaling behavior only for Cu 2＋ with obvious red-shifted MLCT (metal-to-ligand charge transfer transitions) absorptions and dramatic fluorescence quenching compared with Zn 2＋ and other metal ions.

Improvement of the efficiency of thiophene-bridged compounds for dye-sensitized solar cells

“…This trend is also noticeable for THQ-7: 2 vinylene links, 0.7 eV red shift. Despite these limitations, the BHandHLYP deviations remain in the line of recently published PCM-TDDFT studies for triphenylmethane dyes similar to TPA [91,92], as well as for other structures [93][94][95]. The analysis of the Figs.…”

Determination and Imaging of Small Biomolecules and Ions Using Ruthenium(II) Complex-Based Chemosensors

“…In addition to imidazole, some other groups, such as DPA [86,[125][126][127][128], 1,8-naphthyridine [129], 1,3-benzothiazole [130], carboxyl [131] and others [132], have also been utilized as the response units for the development of Ru(II) complex chemosensors for Cu 2+ . For example, complex 27 reported by Ramachandran and colleagues was capable of detecting phosphate anions through C-H-anion interaction and Cu 2+ through coordination with triazole, benzothiazole and the "O" linker, respectively [130] (Fig.…”

Luminescent chemosensor for Hg2+ ion based on a dinuclear Ru(II) complex containing open chain azacrown ether

“…They were widely applied as luminescent probes for inorganic anions, alkali and alkaline-earth metal ions, neutral molecule, pH, and biological molecules in recent years [24][25][26][27][28][29], to the best of our knowledge, were received a few attentions in chemosensor for heavy and transition metal ions [30][31][32][33][34][35][36][37][38][39][40][41][42][43], especially for Hg 2+ ion. This is astounding in light of the enticing photophysical properties of Ru(II) polypyridyl complexes.…”