Tuning the solid-state emission of the analogous GFP chromophore by varying alkyl chains in the imidazolinone ring
作者:Xiang Shen、GuangXi Huang、Kan Li、GuanXin Zhang、DeQing Zhang
DOI:10.1007/s11426-013-4913-x
日期:2013.9
New analogues of green fluorescent protein (GFP) chromophore m GFP-C n (n = 1, 3, 5, 11) with alkyl chains of different lengths in the imidazolinone rings were synthesized and their crystal structures were determined. These GFP-like chromophores are all emissive in the solid state. And the solid-state emission quantum yields of increase by extending the lengths of alkyl chains, owing to the fact that the intermolecular pi-pi interactions are significantly weakened based on their crystal structures.
具有不同长度烷基链的绿色荧光蛋白(GFP)类色素分子GFP-C_n(n = 1, 3, 5, 11)在咪唑啉酮环中被合成,并确定了它们的晶体结构。这些GFP类色素分子在固态下均能发光,并且随着烷基链长度的增加,固态发光量子产率提高,这是由于基于它们晶体结构的分子间π-π相互作用显著减弱所致。