This disclosure relates to novel organic dye and a method for preparing the same. The dye compound of the present invention, when used for a dye-sensitized solar cell (DSSC), shows improved molar absorption coefficient, J
sc
(short circuit photocurrent density) and photoelectric transformation efficiency, compared to dyes of the prior art, thus largely improving solar cell efficiency, and it may be purified without expensive column thus remarkably lowering dye synthesis cost.
Upon oxidative dimerization of pale yellow
Ar2CCHPh 1 (Ar =
4-Me2NC6H4), deep blue 1,4-dication
22+ was obtained as a stable salt, which was transformed into 1
by reductive C–C bond fission; deprotonation of 22+ gave
intense yellow diene 3, which was interconvertible with violet dication
42+ by two-electron transfer, thus exhibiting two distinct modes
of electrochromism before and after proton transfer.
Monomeric lithium and sodium silylbenzyl complexes: syntheses, structures, and CO bond olefination
作者:Jordan Barker、Nathan Davison、Paul G. Waddell、Erli Lu
DOI:10.1039/d3cc01376f
日期:——
structures and reactivity studies of two new monomeric alkali metal silylbenzyl complexes stabilised by a tetradentate amine ligand, tris[2-(dimethylamino)ethyl]amine (Me6Tren). The two complexes, namely [MR′(Me6Tren)] (R′: CH(Ph)(SiMe3)) (2-Li: M = Li; 2-Na: M = Na), exhibit significant different coordination modes according to their metal identity (Li: σ-coordination; Na: π-coordination). Reactivity
在此,我们报道了由四齿胺配体三[2-(二甲基氨基)乙基]胺(Me 6 Tren)稳定的两种新型单体碱金属甲硅烷基苄基配合物的合成、结构和反应性研究。这两种配合物,即[MR′(Me 6 Tren)] (R′: CH(Ph)(SiMe 3 )) (2-Li: M = Li; 2-Na: M = Na),表现出显着不同的配位模式根据它们的金属特性(Li:σ-配位;Na:π-配位)。2-Li 和 2-Na 的反应性研究表明,它们能够有效促进广泛使用的一类有机官能团相互转化:酮、醛和酰胺的 CO 键烯化,以产生三取代的内烯烃。
Rodd; Linch, Journal of the Chemical Society, 1927, p. 2187