Visible-Light Excitation of Infrared Lanthanide Luminescence via Intra-Ligand Charge-Transfer State in 1,3-Diketonates Containing Push-Pull Chromophores
Visible-Light Excitation of Infrared Lanthanide Luminescence via Intra-Ligand Charge-Transfer State in 1,3-Diketonates Containing Push-Pull Chromophores
复制标题
DOI：
10.1002/ejic.200701197
复制
发表时间：
2008-03
影响因子：
2.3
通讯作者：
N. M. Shavaleev;R. Scopelliti;Frédéric Gumy;J. Bünzli
中科院分区：
文献类型：
--
作者：
N. M. Shavaleev;R. Scopelliti;Frédéric Gumy;J. Bünzli
合成了一种新的含电子给体[4-二甲氨基苯]和电子受体（4-硝基苯）的1，3-二酮配体及其镧系配合物。它们在400-550 nm的光谱的可见光区显示出强烈的配体内电荷转移吸收跃迁，该跃迁用于实现NdIII、ErIII和YbIII离子的金属中心红外发光的可见光激发。
A new 1,3-diketonato ligand containing both an electron-donor [4-(dimethylamino)benzene] and an electron-acceptor (4- nitrobenzene) group and its lanthanide complexes have been prepared. They display an intense intra-ligand charge-transfer absorption transition in the visible region of the spectrum at 400–550 nm which was utilized to achieve visible-light excitation of metal-centred infrared luminescence of NdIII, ErIII and YbIII ions.