Novel bis(phthalocyaninato) rare earth complexes with the bulky and strong electron-donating dibutylamino groups: synthesis, spectroscopy, and SMM properties | |
Chen, Yuxiang ; Ma, Fang ; Chen, Xiaoxiang ; Dong, Bowei ; Wang, Kang ; Jiang, Shangda ; Wang, Chiming ; Chen, Xin ; Qi, Dongdong ; Sun, Haoling ; Wang, Bingwu ; Gao, Song ; Jiang, Jianzhuang | |
刊名 | INORGANIC CHEMISTRY FRONTIERS |
2017 | |
关键词 | SINGLE-MOLECULE MAGNETS SANDWICH-TYPE (NA)PHTHALOCYANINATO FIELD-EFFECT TRANSISTORS DOUBLE-DECKER COMPLEXES THIN-FILM TRANSISTORS F-F INTERACTIONS INFRARED-SPECTRA TRIS(PHTHALOCYANINATO) EUROPIUM(III) PERIPHERAL SUBSTITUTION MAGNETIZATION REVERSAL |
DOI | 10.1039/c7qi00332c |
英文摘要 | Strong electron-donating dialkylamino groups were incoporated onto the phthalocyanine ligand in bis (phthalocyaninato) rare earth complexes for the first time to investigate their effects on the spectroscopic properties, electrochemistry, and electronic structure. The bis[2,3,9,10,16,17,23,24-octakis(dibutylamino) phthalocyaninate] rare earth complexes M{Pc[N(C4H9)(2)](8)}(2) {Pc[N(C4H9)(2)](8) = 2,3,9,10,16,17,23,24-octakis (dibutylamino) phthalocyanine, M = Y, Tb} (1, 2) were isolated from the condensation reaction of the corresponding metal free ligand in a refluxing mixture of n-octanol/1,2,4-trichrolobenzene (TCB) (1 : 5) in the presence of M(acac)(3)center dot nH(2)O (M = Y, Tb) in relatively good yields, with their sandwich double-decker nature revealed on the basis of their mass, H-1 NMR, electronic absorption, IR, and EPR spectroscopic results in addition to elemental analysis. Their electrochemistry was investigated by cyclic voltammetry (CV). In particular, magnetic studies reveal the typical slow relaxation of the terbium double-decker, indicating its typical single-ion magnet (SIM) nature with a blocking temperature of 25 K and a spin reversal energy barrier of 752 +/- 8 K, representing the sole example of sandwich-type tetrapyrrole lanthanide-based SMMs reported thus far with a blocking temperature over 20 K. Theoretical calculations disclose the effect of the bulky and strong electron-donating peripheral dialkylamino groups, which create a square-antiprismatic coordination geometry and intensified coordination field strength for the central terbium ion, resulting in the excellent magnetic performance of this terbium double-decker SIM.; National Key Basic Research Program of China [2013CB933402]; Natural Science Foundation of China [21290174, 21631003, 21671017, 21301017, 21401009]; Beijing Municipal Commission of Education; University of Science and Technology Beijing; SCI(E); ARTICLE; 9; 1465-1471; 4 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/471101] |
专题 | 化学与分子工程学院 |
推荐引用方式 GB/T 7714 | Chen, Yuxiang,Ma, Fang,Chen, Xiaoxiang,et al. Novel bis(phthalocyaninato) rare earth complexes with the bulky and strong electron-donating dibutylamino groups: synthesis, spectroscopy, and SMM properties[J]. INORGANIC CHEMISTRY FRONTIERS,2017. |
APA | Chen, Yuxiang.,Ma, Fang.,Chen, Xiaoxiang.,Dong, Bowei.,Wang, Kang.,...&Jiang, Jianzhuang.(2017).Novel bis(phthalocyaninato) rare earth complexes with the bulky and strong electron-donating dibutylamino groups: synthesis, spectroscopy, and SMM properties.INORGANIC CHEMISTRY FRONTIERS. |
MLA | Chen, Yuxiang,et al."Novel bis(phthalocyaninato) rare earth complexes with the bulky and strong electron-donating dibutylamino groups: synthesis, spectroscopy, and SMM properties".INORGANIC CHEMISTRY FRONTIERS (2017). |
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