1.
Small
; 6(2): 174-8, 2010 Jan.
Article
in English
| MEDLINE
| ID: mdl-19943254
Subject(s)
Cobalt/chemistry , Electric Conductivity , Nanotechnology/instrumentation , Vibration , Thermodynamics
2.
Inorg Chem
; 45(16): 6535-40, 2006 Aug 07.
Article
in English
| MEDLINE
| ID: mdl-16878968
ABSTRACT
The magnetic anisotropy of the supramolecular [2 x 2] grid [Co(II)4L4]8+, with a bis(bipyridyl)-pyrimidine-based ligand L, was investigated by single-crystal magnetization measurements at low temperatures. The magnetization curves exhibit metamagnetic-like behavior and are explained by the weak-exchange limit of a minimal spin Hamiltonian including Heisenberg exchange, easy-axis ligand fields, and the Zeeman term. It is also shown that the magnetic coupling strength can be varied by the substituent R1 in the two-position on the central pyrimidine group of the ligand L.