Sandwich-Type Mixed Tetrapyrrole Rare-Earth Triple-Decker Compounds Effect of the Coordination Geometry on the Single-Molecule-Magnet Nature

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	Sandwich-Type Mixed Tetrapyrrole Rare-Earth Triple-Decker Compounds Effect of the Coordination Geometry on the Single-Molecule-Magnet Nature
	Kan, Jinglan ; Wang, Hailong ; Sun, Wei ; Cao, Wei ; Tao, Jun ; Jiang, Jianzhuang ; Tao J(陶军)
刊名	http://dx.doi.org/10.1021/ic400485y
	2013
关键词	COMPLEXES PHTHALOCYANINATO ELECTROCHEMISTRY MAGNETIZATION SPECTROSCOPY DISTANCE LIGANDS ANGLE SMMS
英文摘要	National Key Basic Research Program of China [2013CB933402, 2012CB224801]; Natural Science Foundation of China; Beijing Municipal Commission of Education; State Key Laboratory of Physical Chemistry of Solid Surfaces; Employment of the raise-by-one step method starting from M(TClPP)(acac) (acac = monoanion of acetylacetone) and [Pc(OPh)(8)]-M'[Pc(OPh)(8)] led to the isolation and free modulation of the two rare-earth ions in the series of four mixed tetrapyrrole dysprosium sandwich complexes {(TClPP)M[Pc(OPh)(8)]M'[Pc(OPh)(8)]} [1-4; TClPP = dianion of meso-tetrakis(4-chlorophenyl)porphyrin; Pc(OPh)(8) = dianion of 2,3,9,10,16,17,23,24-octa(phenoxyl)phthalocyanine; M M' = Dy-Dy, Y-Dy, Dy-Y, and Y-Y]. Single-crystal X-ray diffraction analysis reveals different octacoordination geometries for the two metal ions in terms of the twist angle (defined as the rotation angle of one coordination square away from the eclipsed conformation with the other) between the two neighboring tetrapyrrole rings for the three dysprosium-containing isostructural triple-decker compounds, with the metal ion locating between an inner phthalocyanine ligand and an outer porphyrin ligand with a twist angle of 9.64-9.90 degrees and the one between two phthalocyanine ligands of 25.12-25.30 degrees. Systematic and comparative studies over the magnetic properties reveal magnetic-field-induced single-molecule magnet (SMM), SMM, and non-SMM nature for 1-3, respectively, indicating the dominant effect of the coordination geometry of the spin carrier, instead of the f-f interaction, on the magnetic properties. The present result will be helpful for the future design and synthesis of tetrapyrrole lanthanide SMMs with sandwich molecular structures.
语种	英语
出版者	AMER CHEMICAL SOC
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/88948]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Kan, Jinglan,Wang, Hailong,Sun, Wei,et al. Sandwich-Type Mixed Tetrapyrrole Rare-Earth Triple-Decker Compounds Effect of the Coordination Geometry on the Single-Molecule-Magnet Nature[J]. http://dx.doi.org/10.1021/ic400485y,2013.
APA	Kan, Jinglan.,Wang, Hailong.,Sun, Wei.,Cao, Wei.,Tao, Jun.,...&陶军.(2013).Sandwich-Type Mixed Tetrapyrrole Rare-Earth Triple-Decker Compounds Effect of the Coordination Geometry on the Single-Molecule-Magnet Nature.http://dx.doi.org/10.1021/ic400485y.
MLA	Kan, Jinglan,et al."Sandwich-Type Mixed Tetrapyrrole Rare-Earth Triple-Decker Compounds Effect of the Coordination Geometry on the Single-Molecule-Magnet Nature".http://dx.doi.org/10.1021/ic400485y (2013).