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Synthesis and Magnetic Properties of the Novel Dithiadiazolyl Radical, p-NCC6F4C6F4CNSSN
Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge UK
ICMA, CSIC-Universidad de Zaragoza, E 50009, Zaragoza, Spain
* Author to whom correspondence should be addressed.
Received: 23 May 2004 / Accepted: 21 June 2004 / Published: 31 August 2004
Abstract: The dithiadiazolyl radical p-NCC6F4C6F4CNSSN• (4) retains its monomericnature in the solid state with molecules linked together into chains via supramolecularCN···S interactions. Variable temperature magnetic studies on 4 show that it behaves as anear-ideal Curie paramagnet (|θ| less than 0.1 K), indicating negligible intermolecularexchange. The effective magnetic moment (1.78 μB) is temperature independent and inexcellent agreement with the value expected for an S = 1⁄2 paramagnet with g = 2.01(1.74μB). The lack of exchange coupling between radicals is attributed to the absence ofsignificant orbital overlap between radical centres.
Keywords: Magnetic properties; dithiadiazolyl; molecular magnetism; organic magnet.
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MDPI and ACS Style
Alberola, A.; Less, R.J.; Palacio, F.; Pask, C.M.; Rawson, J.M. Synthesis and Magnetic Properties of the Novel Dithiadiazolyl Radical, p-NCC6F4C6F4CNSSN. Molecules 2004, 9, 771-781.
Alberola A, Less RJ, Palacio F, Pask CM, Rawson JM. Synthesis and Magnetic Properties of the Novel Dithiadiazolyl Radical, p-NCC6F4C6F4CNSSN. Molecules. 2004; 9(9):771-781.
Alberola, Antonio; Less, Robert J.; Palacio, Fernando; Pask, Christopher M.; Rawson, Jeremy M. 2004. "Synthesis and Magnetic Properties of the Novel Dithiadiazolyl Radical, p-NCC6F4C6F4CNSSN." Molecules 9, no. 9: 771-781.