Abstract
A supramolecular assembly of [p-MePyNN]2[Au(CN)2]2 (1) (p-MePyNN+ = 2-(4-N-methylpyridinium)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazo-1-oxyl-3-oxide radical cation) has been synthesized from the combination of p-N-methylpyridinium nitronyl nitroxide radical cations and [Au(CN)2]− anions, and characterized structurally as well as magnetically. The compound crystallizes in the orthorhombic, space group P212121
, with two independent p-MePyNN+ cations separated from each other by the dimer . The magnetic study shows that the larger steric hindrance of [Au(CN)2]− anion influences the magnetic interactions between the radical cations, with very weak antiferromagnetic interactions.
Acknowledgments
This project was supported by the National Natural Science Foundation of China No. 20631030, National Basic Research Program of China, 973 Program, 2007CB815305, and Natural Science Foundation of Tianjin 09JCYBJC05500.