Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/18120
Title: | A series of new lanthanide fumarates displaying three types of 3-D frameworks |
Author: | Tan, Xiao Feng Zhou, Jian Fu, Lianshe Xiao, Hong Ping Zou, Hua Hong Tang, Qiuling |
Issue Date: | 2016 |
Publisher: | Royal Society of Chemistry |
Abstract: | A series of lanthanide fumarates [Sm2(fum)3(H2fum)(H2O)2] (1, H2fum = fumaric acid), [Ln2(fum)3- (H2O)4]·3H2O {Ln = Tb (2a), Dy (2b)} and [Ln2(fum)3(H2O)4] {Ln = Y (3a), Ho (3b), Er (3c), Tm (3d)} were prepared by the hydrothermal method and their structures were classified into three types. The 3-D framework of compound 1 contains a 1-D infinite [Sm–O–Sm]n chain built up from the connection of SmO8(H2O) polyhedra sharing edges via three –COO group bridges of fumarate ligands, which is further constructed into a 3-D network structure with three kinds of fumarate ligands. Compounds 2a–b are isostructural and consist of a 3-D porous framework with 0-D cavities for the accommodation of chair-like hexameric (H2O)6 clusters. Compounds 3a–d are isostructural and have a 3-D network structure remarkably different from those of 1 and 2a–b, due to the different coordination numbers for the Ln3+ ions and distinct fumarate ligand bridging patterns. A systematic investigation of seven lanthanide fumarates and five reported compounds revealed that the well-known lanthanide contraction has a significant influence on the formation of lanthanide fumarates. The magnetic properties of compounds 1, 2b and 3b–3d were also investigated. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/18120 |
DOI: | 10.1039/c6dt00205f |
ISSN: | 1477-9226 |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
A series of new lanthanide fumarates displaying three types of 3-D frameworks_10.1039c6dt00205f.pdf | 3.81 MB | Adobe PDF |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.