405149-91-9Relevant academic research and scientific papers
Synthesis, characterization and photovoltaic studies of 2,2′;6′,2?-terpyridine-based ruthenium complexes with phenylamino, anthranyl and furfuryl substitutions at the 4′-position
Bhattacharya, Sayantani,Datta, Jayati,Mandal, Tarun Kanti,Mongal, Binitendra Naath,Naskar, Subhendu
, p. 1382 - 1398 (2021/06/16)
A series of two heteroleptic ruthenium complexes of the type [Ru(X-tpy)(bpy-COOH)(NCS)](PF6) (where X-tpy = 4′-(4-N,N-dimethylaminophenyl)-2,2′:6′,2?-terpyridine for complex 1 and 4′-(9-anthryl)-2,2′:6′,2?-terpyridine for complex 2, bpy-COOH = 4,4′-dicarboxy-2,2′-bipyridine) and another heteroleptic ruthenium complex of the type [Ru(X-tpy)(bpy-COOH)(NCS)]Cl (where X-tpy = 4′-(furan-2-yl)-2,2′:6′,2?-terpyridine for complex 3, bpy-COOH = 4,4′-dicarboxy-2,2′-bipyridine) have been synthesized and fully characterized. The effects of these substitutions with varying electronic properties on the resulting ruthenium dyes were studied in relation to their electronic structure and consequent redox chemistry and photovoltaic performance in a DSSC setup. Complex 1 registers a better photovoltaic performance with photon to conversion efficiency (PCE) of (η = 1.41%) with a J sc value of 2.1 mA cm?2 and V oc 0.58 V followed by 2 (η = 0.44%) and 3 (η = 0.13%). The pattern for the photovoltaic performance has been justified with a theoretical analysis of the directionality of the most intense charge transfers taking place in the dyes upon light irradiation.
Syntheses and properties of new metal-carbon bonded heteroleptic complexes of ruthenium(II) containing terpyridine coligand
Pratihar, Jahar Lal,Pattanayak, Poulami,Huang, Jui-Hsien,Chattopadhyay, Surajit
, p. 5170 - 5174 (2010/05/12)
Reactions of 2-(arylazo)aniline, HL [H represents the dissociable protons upon orthometallation and HL is p-RC6H4N = NC6H4-NH2; R = H for HL1; CH3 for HL2 and Cl for HL3] with Ru(R1-tpy)Cl3 (where R1-tpy is 4′-(R1)-2,2′,6′′,2′′-terpyridine and R1 = H or 4-N,N-dimethylaminophenyl or 4-methylphenyl) afford a group of complexes of type [Ru(L)(R1-tpy)]·ClO4 each of which contains C,N,N coordinated L- as a tridentate ligand along with a terpyridine. Structure of one such complex has been determined by X-ray crystallography. All the Ru(II) complexes are diamagnetic, display characteristic 1H NMR signals and intense dπ(RuII) → π*(tpy) MLCT transitions in the visible region. Cyclic voltammetric studies on [Ru(L)(R1-tpy)]·ClO4 complexes show Ru(II)-Ru(III) oxidation within 0.63-0.67 V versus SCE.
A new class of functionalized terpyridyl ligands as building blocks for photosensitized supramolecular architectures. Synthesis, structural, and electronic characterizations
Laine, Philippe,Bedioui, Fethi,Ochsenbein, Philippe,Marvaud, Valerie,Bonin, Michel,Amouyal, Edmond
, p. 1364 - 1377 (2007/10/03)
A new class of triarylpyridinio-derivatized [4′-(p- phenyl)n]terpyridyl ligands, R12R2TP+-(p)ntpy, was designed as a novel category of electron-acceptor (A)-substituted proto-photosensitizi
