1160930-69-7Relevant articles and documents
Chemical compatibility between a hole conductor and organic dye enhances the photovoltaic performance of solid-state dye-sensitized solar cells
Kwon, Young Soo,Lim, Jongchul,Song, Inwoo,Song, In Young,Shin, Won Suk,Moon, Sang-Jin,Park, Taiho
, p. 8641 - 8648 (2012)
A series of organic dyes having an unsymmetrical geometry, 3-(5′-{4-[(4-tert-butyl-phenyl)-(4-fluoro-phenyl)-amino]-phenyl}-[2, 2′]bithio-phenyl-5-yl)-2-cyano-acrylic acid (D-F), 3-(5′-{4-[(4- tert-butyl-phenyl)-p-tolyl-amino]-phenyl}-[2,2′] bithiophenyl-5-yl)-2- cyano-acrylic acid (D-CH3), and 3-(5′-{4-[(4-tert-butyl-phenyl) -(4-methoxy-phenyl)-amino]-phenyl}-[2,2′]bithiophenyl-5-yl) -2-cyano-acrylic acid (D-OCH3), were designed and synthesized for use in solid-state dye-sensitized solar cells (sDSCs). The dye regeneration energy levels and surface properties were characterized to determine the hole transfer yield from the oxidized dye to the hole conductor (spiro-OMeTAD) by measuring the degree of pore-filling by the spiro-OMeTAD and the transient absorption spectra (TAS). An electrode sensitized with D-OCH3 exhibited the highest spiro-OMeTAD filling fraction and hole transfer quantum yield (Φ) to spiro-OMeTAD, resulting in an enhanced photocurrent and a power conversion efficiency of 3.56% in the sDSC, despite a lower energy driving force for hole transfer compared to those of D-F, or D-CH3. This result illustrates the importance of the chemical compatibility between the hole conductor and the dye on the surface of TiO2. The Royal Society of Chemistry 2012.
One-point binding ligands for asymmetric gold catalysis: Phosphoramidites with a TADDOL-related but acyclic backbone
Teller, Henrik,Corbet, Matthieu,Mantilli, Luca,Gopakumar, Gopinadhanpillai,Goddard, Richard,Thiel, Walter,Fuerstner, Alois
supporting information, p. 15331 - 15342 (2012/11/07)
Readily available phosphoramidites incorporating TADDOL-related diols with an acyclic backbone turned out to be excellent ligands for asymmetric gold catalysis, allowing a number of mechanistically different transformations to be performed with good to outstanding enantioselectivities. This includes [2 + 2] and [4 + 2] cycloadditions of ene-allenes, cycloisomerizations of enynes, hydroarylation reactions with formation of indolines, as well as intramolecular hydroaminations and hydroalkoxylations of allenes. Their preparative relevance is underscored by an application to an efficient synthesis of the antidepressive drug candidate (-)-GSK 1360707. The distinctive design element of the new ligands is their acyclic dimethyl ether backbone in lieu of the (isopropylidene) acetal moiety characteristic for traditional TADDOLs. Crystallographic data in combination with computational studies allow the efficiency of the gold complexes endowed with such one-point binding ligands to be rationalized.
Conjugated polymer sensors built on ?-extended borasiloxane cages
Liu, Wenjun,Pink, Maren,Lee, Dongwhan
supporting information; experimental part, p. 8703 - 8707 (2009/10/23)
An efficient 2 + 2 cyclocondensation with dihydroxysilane converted simple arylboronic acids to bifunctional borasiloxane cage molecules, which were subsequently electropolymerized to furnish air-stable thin films. The extended [p,?]-conjugation that defi
