Abstract
A series of new compounds containing rare earth cations (Eu to Yb) and paramagnetic cluster anion [Re6Te8(CN)6]3- was prepared and investigated. The X-ray structural analyses have revealed that the compounds [{Ln(H2O)4}{Re6Te8(CN)6}] · 2.5H2O; Ln = Eu (1), Tb (3), Dy (4), Ho (5), Er (6), Tm (7), [{Gd(H2O)3}{Re6Te8(CN)6}] · 2.5H2O (2) and [{Yb(H2O)4}{Re6Te8(CN)6}] (8) are three-dimensional polymers based on Re-CN-Ln interactions. Measurements of magnetic susceptibility for 2 and 5 showed that effective magnetic moment (at 300 K) was 8.13 μB for compound 2 and 10.79 μB for compound 5 with weak antiferromagnetic ordering appeared at low temperatures.
Original language | English |
---|---|
Pages (from-to) | 2357-2364 |
Number of pages | 8 |
Journal | Polyhedron |
Volume | 27 |
Issue number | 11 |
DOIs | |
State | Published - 4 Aug 2008 |
Bibliographical note
Funding Information:This work was supported by the SRC program of the Korea Science and Engineering Foundation (KOSEF) through the Center for Intelligent Nano-Bio Materials at Ewha Womans University (Grant R11-2005-008-03001-0) Rosnauka (2006-Pи-19.0/001/650, Contract No. 02.442.117414) and Russian Foundation of Basic Research (grants 08-03-90413 and 06-03-89503).
Keywords
- Coordination framework
- Cyanide
- Lanthanides
- Octahedral cluster
- Rhenium