Enhancing the effective energy barrier of a Dy(III) SMM using a bridged diamagnetic Zn(II) ion.
Field induced single-molecule-magnet behaviour is observed for both a heterodinuclear [ZnDy(L(-))2](3+) complex (1) and a mononuclear [Dy(HL)2](3+) complex (2), with effective energy barriers of 83 cm(-1) and 16 cm(-1), respectively. Insights into the relaxation mechanism(s) and barrier heights are provided via ab initio and DFT calculations. Our findings reveal an interesting observation that the U(eff) of SMMs can be enhanced by incorporating diamagnetic metal ions.
Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra, India-400076. eswar@chem.iitb.ac.in rajaraman@chem.iitb.ac.in.
Apoorva
A
Upadhyay
Saurabh Kumar
SK
Singh
Chinmoy
C
Das
Ranajit
R
Mondol
Stuart K
SK
Langley
Keith S
KS
Murray
Gopalan
G
Rajaraman
Maheswaran
M
Shanmugam