TY - JOUR
T1 - Lanthanide CPs: The guest-tunable drastic changes of luminescent quantum yields, and two photon luminescence
AU - Zeng, Cheng Hui
AU - Wang, Jing Ling
AU - Yang, Yang Yi
AU - Chu, Tian Shu
AU - Zhong, Sheng Liang
AU - Ng, Seik Weng
AU - Wong, Wing Tak
PY - 2014/3/28
Y1 - 2014/3/28
N2 - Four kinds of guest-driven lanthanide coordination polymers (CPs) have been synthesized. They have similar formula: [Tb(NPA)3CH3CN]n(1, H-NPA = N-phenylanthranilic acid), {[Tb(NPA)3CH3OH]CH3OH}n(2), [Ln(NPA)3DMF]n(Ln = Tb (3a), Gd (3b), Eu (3c)), and [Tb(NPA)3DMSO]n(4). These complexes were characterized by single-crystal diffraction, PXRD, FT-IR, TGA, DTA, EA, UV-vis spectra and luminescence lifetime measurements. They are all highly thermostable, acid and base resistant. The luminescence quantum yields (QY) of Tb3+complexes: 1, 2, 3a and 4 are 4.0%, 9.0%, 44% and 46% respectively. Interestingly, there is a drastic change from 4.0% to 46% in luminescence QY by exchanging the coordination solvent, the oscillation of small molecule near the Tb3+causes the drastic change. Furthermore, the octupolar-like structure of 4 has a high two-photon luminescence.
AB - Four kinds of guest-driven lanthanide coordination polymers (CPs) have been synthesized. They have similar formula: [Tb(NPA)3CH3CN]n(1, H-NPA = N-phenylanthranilic acid), {[Tb(NPA)3CH3OH]CH3OH}n(2), [Ln(NPA)3DMF]n(Ln = Tb (3a), Gd (3b), Eu (3c)), and [Tb(NPA)3DMSO]n(4). These complexes were characterized by single-crystal diffraction, PXRD, FT-IR, TGA, DTA, EA, UV-vis spectra and luminescence lifetime measurements. They are all highly thermostable, acid and base resistant. The luminescence quantum yields (QY) of Tb3+complexes: 1, 2, 3a and 4 are 4.0%, 9.0%, 44% and 46% respectively. Interestingly, there is a drastic change from 4.0% to 46% in luminescence QY by exchanging the coordination solvent, the oscillation of small molecule near the Tb3+causes the drastic change. Furthermore, the octupolar-like structure of 4 has a high two-photon luminescence.
UR - http://www.scopus.com/inward/record.url?scp=84896872966&partnerID=8YFLogxK
U2 - 10.1039/c3tc32309a
DO - 10.1039/c3tc32309a
M3 - Journal article
SN - 2050-7534
VL - 2
SP - 2235
EP - 2242
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 12
ER -