Structural complexity in the rare earth metallocene hydride complexes,   [(C5Me5)(2)LnH](2)

doi:10.1039/c4dt02194k

CORC > 北京大学 > 化学与分子工程学院

	Structural complexity in the rare earth metallocene hydride complexes, [(C5Me5)(2)LnH](2)
	Liu, Shan-Shan ; Gao, Song ; Ziller, Joseph W. ; Evans, William J.
刊名	dalton transactions
	2014
关键词	SINGLE-MOLECULE-MAGNET H BOND ACTIVATION ION MAGNET DILANTHANIDE COMPLEXES ANISOTROPY BARRIER YTTRIUM HYDRIDE TUCK-IN REACTIVITY BLOCKING BEHAVIOR
DOI	10.1039/c4dt02194k
英文摘要	X-ray crystallographic data obtained on the metallocene hydrides, [(C5Me5)(2)LnH](2) (Ln = Gd, Tb, and Dy), of interest for their magnetic properties, have revealed unexpected structural variability in a closely related series of rare earth complexes that can complicate magnetic analysis. Crystals of the two larger metals, Gd and Tb, were structurally straightforward and isomorphous with crystals of [(C5Me5)(2)SmH](2). However, only for Tb were the locations of the hydride ligands in this structural type identified for the first time and found to be consistent with a (C5Me5)(2)Ln(mu-H)(2)Ln(C5Me5)(2) structure. In contrast, for Ln = Dy, the [(C5Me5)(2)H](3)-ligand set does not appear to have one optimum crystal structure. Two different types of crystals and one other solid form of [(C5Me5)(2)DyH](2) were repeatedly isolated upon crystallization and demonstrated that the structure of any particular crystalline sample selected for magnetic analysis could be variable. Asymmetric structures with a single hydride bridge, (C5Me5)(2)Dy(mu-H)DyH(C5Me5)(2), were identifiable for the two crystalline forms. This demonstrated uncertainty in structure and highlights the importance of having a coordination environment with one preferred form for magnetically interesting complexes.; Chemistry, Inorganic & Nuclear; SCI(E); EI; 1; ARTICLE; wevans@uci.edu; 41; 15526-15531; 43
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150629]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Liu, Shan-Shan,Gao, Song,Ziller, Joseph W.,et al. Structural complexity in the rare earth metallocene hydride complexes, [(C5Me5)(2)LnH](2)[J]. dalton transactions,2014.
APA	Liu, Shan-Shan,Gao, Song,Ziller, Joseph W.,&Evans, William J..(2014).Structural complexity in the rare earth metallocene hydride complexes, [(C5Me5)(2)LnH](2).dalton transactions.
MLA	Liu, Shan-Shan,et al."Structural complexity in the rare earth metallocene hydride complexes, [(C5Me5)(2)LnH](2)".dalton transactions (2014).