G. Allinson et al., ORGANIC MOLECULAR MAGNETS - THE SEARCH FOR STABLE BUILDING-BLOCKS, Journal of materials science. Materials in electronics, 5(2), 1994, pp. 67-74
The greatest problem in creating organic molecular magnets seems to be
to find systems in which there is a strong exchange interaction but w
hich are also chemically and thermally stable. This paper discusses on
e possible solution to this problem, the use of 'strain protection', a
nd the synthesis of stable strain-protected pi biradical, trioxytriang
ulene. This is the first representative of a new, unexplored family of
pi biradicals, the non-Kekule polynuclear aromatics.