Photophysical Properties of Near-Infrared-Emitting Ln(III) Complexes with 1-(9-Anthryl)-4,4,4-trifluoro-1,3-butandione (Ln = Nd and Er)
作者:Min-Kook Nah、Hyung-Gook Cho、Hyun-Jung Kwon、Yeong-Joon Kim、Changmoon Park、Hwan Kyu Kim、Jun-Gill Kang
DOI:10.1021/jp061959x
日期:2006.9.1
properties of Nd(III) and Er(III) complexes with 1-(9-anthryl)-4,4,4-trifluoro-1,3-butandione (9-ATFB). The complexes of [Nd(9-ATFB)4]- and [Er(9-ATFB)4]- produced sensitized near-infrared (NIR) luminescence via the excitation of anthracene. This suggests that the intramolecular energy transfer occurred from the singlet excited state of anthracene to the resonance levels of the metal ions, since the phosphorescence
我们报告的合成和Nd(III)和Er(III)与1-(9-蒽)-4,4,4-三氟-1,3-丁二酮(9-ATFB)配合物的光物理性质。[Nd(9-ATFB)4]-和[Er(9-ATFB)4]-的络合物通过蒽的激发产生敏化的近红外(NIR)发光。这表明分子内的能量转移是从蒽的单重激发态到金属离子的共振能级发生的,因为在正常条件下,蒽的磷光是被禁止的。观察到的可见光的量子产率表明,[Nd(9-ATFB)4]-的能量转移比[Er(9-ATFB)4]-的能量转移更有效。配合物的NIR发光寿命在微秒范围内。