25028-32-4Relevant articles and documents
Oligopyridine ligands possessing multiple or mixed anchoring functionality for dye-sensitized solar cells
Woodward, Clint P.,Coghlan, Campbell J.,Rüther, Thomas,Jones, Timothy W.,Hebting, Yanek,Cordiner, Richard L.,Dawson, Ryan E.,Robinson, Diane E.J.E.,Wilson, Gregory J.
, p. 5238 - 5247 (2015)
This paper describes the synthesis and characterisation of targeted 2,2′-bipyridine-3,3′,4,4′-tetracarboxylic acid and 2,2′-bipyridine-4,4′,5,5′-tetracarboxylic acid via succinct synthetic pathways. Further, we report methods for producing asymmetric bipyridines bearing both carboxylate and phosphonate anchoring groups in the ester protected form, and the first reported synthesis of a group of new polyoxo oligopyridine ligands based on terpyridine and quaterpyridine. A robust synthetic strategy using Kr?nhke conditions was developed and demonstrated for synthesising oligopyridine moieties targeted for application in the dye-sensitized solar cell (DSSC). This class of novel ligands was designed to provide alternative anchoring functionality and to improve the metal oxide surface binding properties of coordination complexes in DSSC applications.
Sequence-Specific Self-Assembly of Positive and Negative Monomers with Cucurbit[8]uril Linkers
Raeisi, Mersad,Kotturi, Kondalarao,Del Valle, Ian,Schulz, Jan,Dornblut, Paulina,Masson, Eric
supporting information, p. 3371 - 3377 (2018/03/13)
The self-assembly into dynamic oligomers of Cucurbit[8]uril (CB[8]), a positive ditopic Ir(III) bis-terpyridine complex, and a negative ditopic Fe(II) bis-terpyridine complex flanked by four butyrate side chains was assessed to answer a seemingly straight
Novel 4′-functionalized 4,4′′-dicarboxyterpyridine ligands for ruthenium complexes: Near-IR sensitization in dye sensitized solar cells
Koyyada, Ganesh,Botla, Vinayak,Thogiti, Suresh,Wu, Guohua,Li, Jingzhe,Fang, Xiaqin,Kong, Fantai,Dai, Songyuan,Surukonti, Niveditha,Kotamarthi, Bhanuprakash,Malapaka, Chandrasekharam
, p. 14992 - 15003 (2015/02/19)
Novel ruthenium complexes (MC113-MC117), obtained by modifying the terpyridine ligand of the black dye (N749), have been evaluated as sensitizers for dye sensitized solar cells (DSSCs). The modification is carried out by attaching selected chromophores, with varying electron donating strength, covalently to the central ring of the ligand. The complexes, compared to the parent dye, show red shifted absorption covering visible and near IR regions and higher molar extinction coefficients. We report in this work synthesis of a series of these ruthenium complexes with chromophores such as tert-butyl phenyl, triphenylamine, bithiophene, phenoxazine and phenothiazine. Detailed experimental characterization using optical, electrochemical and photovoltaic techniques has been carried out and complemented by density functional theory studies. The fill factors (ff) obtained for these dyes are larger than those of the parent black dye. In spite of these superior properties, the dyes show only moderate to good power conversion efficiencies. The possible reasons for this have been investigated and discussed.
