A rare-earth fluorescent complex which forms a fluorescent complex with two or more rare-earth metals such as europium and terbium and can effectively be excited at a wavelength of 340 nm or longer; a fluorescent labeling agent comprising the rare-earth fluorescent complex; a method of fluorescent labeling in which the rare-earth fluorescent complex is used as a labeling agent; and a method of fluorometric analysis in which the fluorescent labeling agent is used. The rare-earth fluorescent complex is characterized by having a cyclic ligand comprising a 4-biphenyl-2,2′:6′,2″-terpyridine skeleton and a 2,6-bis(3′-aminomethyl-1′-pyrazolyl)pyrazine skeleton bonded thereto.
US7955859B2
申请人:——
公开号:US7955859B2
公开(公告)日:2011-06-07
The spin-states and spin-crossover behaviour of iron(<scp>ii</scp>) complexes of 2,6-dipyrazol-1-ylpyrazine derivatives
作者:Jérôme Elhaïk、Victoria A. Money、Simon A. Barrett、Colin A. Kilner、Ivana Radosavljevic Evans、Malcolm A. Halcrow
DOI:10.1039/b210368k
日期:——
The single crystalline solvate [Fe(L2H)2][BF4]2·3CH3NO2 undergoes a similarly abrupt spin-state transition at 198 K. Polycrystalline [Fe(L2Me)2][BF4]2 and [Fe(L2Me)2][ClO4]2 are isomorphous with each other and also exhibit spin-state transitions at low temperature, although these are very different in form. In contrast, both salts of [Fe(L2Me2)2]2+ and [Fe(L2Mes)2]2+ are fully low-spin at 295 K. Single