TY - JOUR
T1 - Control of Lanthanide Coordination Environment
T2 - Synthesis, Structure, and Oxygen-Sensitive Luminescence Properties of an Eight-Coordinate Tb(III) Complex
AU - Nakai, Hidetaka
AU - Seo, Juncheol
AU - Kitagawa, Kazuhiro
AU - Goto, Takahiro
AU - Nonaka, Kyoshiro
AU - Matsumoto, Takahiro
AU - Ogo, Seiji
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Nos. JP26000008 (Specially Promoted Research), JP26410074, JP26810038, JP15J03538, and JP15H00953 (Scientific Research on Innovative Areas Stimuli-responsive Chemical Species for the Creation of Functional Molecules, No. 2408), and by the World Premier International Research Center Initiative from the Ministry of Education, Culture, Sports, Science and Technology (Japan).
Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/7/5
Y1 - 2016/7/5
N2 - Coordination environment of the Tb3+ ion in oxygen-sensitive luminescent complexes can be successfully controlled through the size of alkyl substituents on ligands {(RMeArOH)4cyclen} (R = tBu or Me; cyclen = 1,4,7,10-tetraazacyclododecane); a newly prepared eight-coordinate complex 1tBu shows higher oxygen sensitivity (KSV = 17 600) and lower luminescence quantum yield (φ = 0.67 under N2) than those of the previously reported seven-coordinate analogues 1Me and [{(MeMeArO)3tacn}TbIII(THF)] (KSV = 12 600 and 8300, φ = 0.91 and 0.91 under N2, respectively; tacn = 1,4,7-triazacyclononane; THF = tetrahydrofuran). The oxygen-sensitive mechanism is discussed on the basis of the photophysical properties of the corresponding Gd(III) complexes.
AB - Coordination environment of the Tb3+ ion in oxygen-sensitive luminescent complexes can be successfully controlled through the size of alkyl substituents on ligands {(RMeArOH)4cyclen} (R = tBu or Me; cyclen = 1,4,7,10-tetraazacyclododecane); a newly prepared eight-coordinate complex 1tBu shows higher oxygen sensitivity (KSV = 17 600) and lower luminescence quantum yield (φ = 0.67 under N2) than those of the previously reported seven-coordinate analogues 1Me and [{(MeMeArO)3tacn}TbIII(THF)] (KSV = 12 600 and 8300, φ = 0.91 and 0.91 under N2, respectively; tacn = 1,4,7-triazacyclononane; THF = tetrahydrofuran). The oxygen-sensitive mechanism is discussed on the basis of the photophysical properties of the corresponding Gd(III) complexes.
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U2 - 10.1021/acs.inorgchem.6b00800
DO - 10.1021/acs.inorgchem.6b00800
M3 - Article
AN - SCOPUS:84978080695
SN - 0020-1669
VL - 55
SP - 6609
EP - 6615
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 13
ER -