Discrete {Gd(III)₄M} (M = Gd(III) or Co(II)) pentanuclear complexes: a new class of metal-organophosphate molecular coolers.
The first examples of homo- and hetero-polymetallic organophosphates of gadolinium are reported. Magnetic measurements reveal a higher magnetic entropy change for the isotropic {Gd(III)5} complex (25.8 J kg(-1) K(-1)) as compared to the heterometallic {Gd(III)4Co(II)} complex (20.3 J kg(-1) K(-1)), which is attributable to a change in magnetic coupling as estimated from DFT calculations.
Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India. rmv@chem.iitb.ac.in.
Sandeep K
SK
Gupta
Aijaz A
AA
Dar
Thayalan
T
Rajeshkumar
Subramaniam
S
Kuppuswamy
Stuart K
SK
Langley
Keith S
KS
Murray
Gopalan
G
Rajaraman
Ramaswamy
R
Murugavel