Spontaneous Magnetization in a Sulfur–Nitrogen Radical at 36 K


  • This work has been supported by the SERC, the Royal Society, and the CICYT (Grant No. MAT92-896 and MAT 94-043). We thank Dr. C. M. Grant (University of Edinburgh) for additional magnetic measurements.


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Slow sublimation of the dithiadiazolyl radical 1 yields crystals of a new polymorph (orthorhombic, space group Fdd2). Below 36 K this new phase exhibits a spontaneous magnetic moment, which is described in terms of canted antiferromagnetism.