| Title | Novel bis(phthalocyaninato) rare earth complexes with the bulky and strong electron-donating dibutylamino groups: synthesis, spectroscopy, and SMM properties |
| Authors | 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 |
| Affiliation | Univ Sci & Technol Beijing, Dept Chem, Beijing Key Lab Sci & Applicat Funct Mol & Crysta, Beijing 100083, Peoples R China. Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China. Beijing Normal Univ, Beijing Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China. Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China. Univ Sci & Technol Beijing, Dept Chem, Beijing Key Lab Sci & Applicat Funct Mol & Crysta, Beijing 100083, Peoples R China. Sun, HL (reprint author), Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China. Sun, HL (reprint author), Beijing Normal Univ, Beijing Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China. Wang, BW (reprint author), Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China. |
| Keywords | 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 |
| Issue Date | 2017 |
| Publisher | INORGANIC CHEMISTRY FRONTIERS |
| Citation | INORGANIC CHEMISTRY FRONTIERS.2017,4(9),1465-1471. |
| Abstract | 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. |
| URI | http://hdl.handle.net/20.500.11897/471101 |
| ISSN | 2052-1553 |
| DOI | 10.1039/c7qi00332c |
| Indexed | SCI(E) |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 稀土材料化学与应用国家重点实验室 |
