Dimethylmethylenebis(iminonitroxide) diradical 1 was prepared from 3-hydroxy-2,2-dimethylpropanal in five steps. The structure, ESR spectrum, and magnetic properties are reported: 1 exhibited an antiferromagnetic interaction of J/kB = −72 K (H = −2JS1·S2).
双自由基1由3-羟基-2,2-二甲基丙醛经五步合成制得。报道了其结构、ESR谱图和磁性性质:1展现出反铁磁性相互作用,J/kB = −72 K (H = −2JS1·S2)。