申请人:Wessig Pablo
公开号:US20110319639A1
公开(公告)日:2011-12-29
The invention relates to a fluorescent dye of general formula I or II
wherein R
1
, R
2
, R
3
and R
4
are independently hydrogen or a branched or unbranched, saturated or unsaturated, aliphatic or aromatic, functionally substituted, or unsubstituted hydrocarbon radical, wherein at least one of the R
1
or R
2
radicals and one of the R
3
or R
4
radicals is not hydrogen and the R
1
and R
3
radicals and/or R
2
and R
4
radicals in formula I can be bridged to each other, and X and Y independently represent a substituted or unsubstituted C
1
or C
2
hydrocarbon radical wherein any one carbon unit can be replaced by an N or S heteroatom. The dye is remarkable for its high fluorescence intensity and large Stokes shift in combination with a long fluorescence lifetime.
该发明涉及一种一般式I或II的荧光染料,其中R1、R2、R3和R4分别独立地是氢或支链或直链、饱和或不饱和、脂肪族或芳香族、功能取代或未取代的碳氢基团,其中至少一个R1或R2基团和一个R3或R4基团不是氢,一般式I中的R1和R3基团和/或R2和R4基团可以相互桥接,X和Y独立地表示取代或未取代的C1或C2碳氢基团,其中任何一个碳单元可以被N或S杂原子取代。该染料以其高荧光强度、大斯托克斯位移以及长荧光寿命而显著。