ESR	Electron spin resonance
NAOC	[Ni${}_2$(Medpt)${}_2$($\mu$-ox)(H${}_2$O)${}_2$](ClO${}_4$)${}_2$·2H${}_2$O
Medpt	3,3${}^{\prime }$-diamino-N-methyl-dipropylamine
ox	oxalate
cyclam	1,4,8,11-tetraazacyclotetradecan
dl-cth	5,5,7,12,12,14-hexamethyltetraazacyclotetradecan