title: Color tuning and white light emission via in situ doping of luminescent lanthanide metal-organic frameworks.
abstract: Isostructural lanthanide metal-organic frameworks (MOFs) are synthesized through the spontaneous self-assembly of H3BTPCA (1,1',1″-(benzene-1,3,5-triyl)tripiperidine-4-carboxylic acid) ligands and lanthanide ions (we term these MOFs Ln-BTPCA, Ln = La(3+), Tb(3+), Sm(3+), etc.). Prompted by the observation that the different lanthanide ions have identical coordination environment in these MOFs, we explored and succeeded in the preparation of mixed-lanthanide analogues of the single-lanthanide MOFs by way of in situ doping using a mixture of lanthanide salts. With careful adjustment of the relative concentration of the lanthanide ions, the color of the luminescence can be modulated, and white light-emission can indeed be achieved. The mechanisms possibly responsible for the observed photophysical properties of these mixed-lanthanide MOFs are also discussed.
authors: Key Laboratory of Polyoxometalate Science of the Ministry of Education, College of Chemistry, Northeast Normal University , Changchun, Jilin 130024, China.
authors: Qun
authors: Q
authors: Tang
authors: Shuxia
authors: S
authors: Liu
authors: Yiwei
authors: Y
authors: Liu
authors: Danfeng
authors: D
authors: He
authors: Jun
authors: J
authors: Miao
authors: Xingquan
authors: X
authors: Wang
authors: Yujuan
authors: Y
authors: Ji
authors: Zhiping
authors: Z
authors: Zheng