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A Family of Discrete Magnetically Switchable Nanoballs
Author(s) -
Duriska Martin B.,
Neville Suzanne M.,
Moubaraki Boujemaa,
Murray Keith S.,
Balde Chérif,
Létard JeanFrançois,
Kepert Cameron J.,
Batten Stuart R.
Publication year - 2012
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201200123
Subject(s) - thiocyanate , spin crossover , excited state , crystallography , materials science , chemistry , atomic physics , inorganic chemistry , physics
The thermal and light‐induced magnetic properties of a family of discrete magnetically switchable “nanoball” species (3 nm in diameter) is reported. The self‐assembly of these materials is accomplished by the use of the metallo building block, [Cu([Tp 4‐py ])(NCCH 3 )] ([Tp 4‐py ]=tris‐[3‐(4'‐pyridyl)pyrazol‐1‐yl]hydroborate), combined with a [Fe(NCX) 2 ] (X=S, Se and BH 3 ) species. We previously showed that the thiocyanate analogue ( Fe(NCS)‐nano ) undergoes a thermal and light‐induced spin crossover (SCO)—the largest such discrete SCO material reported. Now included in this family are the Se and BH 3 analogues, Fe(NCSe)‐nano and Fe(NCBH 3 )‐nano , which show increased thermal transition temperatures ( T 1/2 =124 K, 162 and 173 K). This variation in transition temperature over the series S