A compound represented by the formula (I) (R
1
represents hydrogen atom or a monovalent substituent; R
2
and R
3
represent hydrogen atom, an alkyl group, or a halogen atom; R
4
and R
5
represent an alkyl group or an aryl group; R
6
and R
7
represent hydrogen atom, an alkyl group, or a halogen atom; R
8
represent hydroxy group or a dialkoxyboranetriyl group; and X represents silicon atom, germanium atom, or tin atom), which is a novel fluorophore usable as a mother nucleus of an off/on type fluorescent probe not utilizing the intramolecular photoinduced electron transfer.
由公式(I)表示的化合物(其中R1代表氢原子或单价取代基;R2和R3代表氢原子、烷基或卤素原子;R4和R5代表烷基或芳基;R6和R7代表氢原子、烷基或卤素原子;R8代表羟基或二烷氧基
硼三基团;X代表
硅原子、
锗原子或
锡原子),这是一种新型的荧光发光体,可用作不利用分子内光诱导电子转移的off/on型荧光探针的母核。