A Bimodal Oxobenzene-bridged Bisdithiazolyl Radical Conductor
| Autor: | Aaron Mailman, Paul A. Dube, Xin Yu, Kristina Lekin, Abdeljalil Assoud, Richard T. Oakley |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Crystal Growth & Design. 12:2485-2494 |
| ISSN: | 1528-7505 1528-7483 |
| DOI: | 10.1021/cg300107t |
| Popis: | The preparation and structural characterization of the methyl-substituted oxobenzene-bridged bisdithiazolyl radical 3b is described. Crystals of 3b belong to the monoclinic space group C2/c and contain two distinct radical environments, A and B. There are eight A radicals in the unit cell, which occupy general positions and form alternating twisted π-stacks running parallel to the c-axis. The four B radicals also adopt an alternating π-stack pattern, but each molecule lies on a crystallographic 2-fold rotation axis, and the overlay of neighboring radicals is centrosymmetric. Stacks of A radicals are linked by close intermolecular S···O′ and S···N′ contacts into ribbon-like arrays that weave along the y-direction, and the B radical stacks are located in columnar cavities generated by the out-of-register alignment of the ribbons of A radicals. Variable temperature magnetic susceptibility measurements indicate a strongly antiferromagnetically coupled system, a result in accord with DFT estimated exchange ene... |
| Databáze: | OpenAIRE |
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