The Tetracyanopyridinide Dimer Dianion, σ‐[TCNPy]22− |
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| Authors: | Dr Jingjun Hao Prof Arnold L Rheingold Marzieh Kavand Dr Kipp J van?Schooten Prof Christoph Boehme Dr Marçal Capdevila‐Cortada Prof Juan J Novoa Eva Wöss Prof Günther Knör Prof Joel S Miller |
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| Institution: | 1. Material Research Science and Engineering Center, Department of Chemistry, University of Utah, Salt Lake City, UT, USA;2. Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA;3. Material Research Science and Engineering Center, Department of Physics and Astronomy, University of Utah, Salt Lake City, UT, USA;4. Departament de Química Física and IQTCUB Facultat de Química, Universitat de Barcelona, Barcelona, Spain;5. Institute of Inorganic Chemistry, Johannes Kepler University Linz, Linz, Austria |
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| Abstract: | The reaction of 2,3,5,6‐tetracyanopyridine (TCNPy) and Cr(C6H6)2 forms diamagnetic σ‐TCNPy]22? possessing a 1.572(3) Å intrafragment sp3–sp3 bond. This is in contrast to the structurally related 1,2,4,5‐tetracyanobenzene and 1,2,4,5‐tetracyanopyrazine that form π‐dimer dianions possessing long, multicenter bonds. |
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| Keywords: | bonding crystal structure cyanides cyanocarbon radical ions |
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