One-Electron Reduction of Kinetically Stabilized Dipnictenes: Synthesis of Dipnictene Anion Radicals
- Takahiro Sasamori ,
- Eiko Mieda ,
- Noriyoshi Nagahora ,
- Kazunobu Sato ,
- Daisuke Shiomi ,
- Takeji Takui ,
- Yoshinobu Hosoi ,
- Yukio Furukawa ,
- Nozomi Takagi ,
- Shigeru Nagase , and
- Norihiro Tokitoh
Abstract

The redox behavior of kinetically stabilized dipnictenes, BbtE
EBbt [E = P, Sb, Bi; Bbt = 2,6-bis[bis(trimethylsilyl)methyl]-4-[tris(trimethylsilyl)methyl]phenyl], was systematically disclosed using cyclic voltammetry and theoretical calculations. It was found that they showed reversible one-electron redox couples in the reduction region. The anion radical species of the Bbt-substituted diphosphene and distibene were successfully synthesized by the reduction of the corresponding neutral dipnictenes (BbtP
PBbt and BbtSb
SbBbt). Their structures were reasonably characterized by ESR, UV−vis, and Raman spectroscopy, and the distibene anion radical was structurally characterized by X-ray crystallographic analysis.
†
Kyoto University.
‡
Osaka City University.
§
Waseda University.
‖
Institute for Molecular Science.
*
In papers with more than one author, the asterisk indicates the name of the author to whom inquiries about the paper should be addressed.
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- Teruyuki Matsumoto, Takahiro Sasamori, Nobuhiro Takeda, Norihiro Tokitoh. Synthesis and properties of group 9 metal complexes bearing a β-ketophosphenato ligand. Journal of Organometallic Chemistry 2010, 695 (7) , 1019-1025. https://doi.org/10.1016/j.jorganchem.2009.10.022
- Takahiro Sasamori, Teruyuki Matsumoto, Norihiro Tokitoh. Synthesis of rhodium–carbonyl complexes bearing a novel P,N-chelating ligand of Schiff-base type. Polyhedron 2010, 29 (1) , 425-433. https://doi.org/10.1016/j.poly.2009.06.043
- Takahiro Sasamori, Akimi Hori, Yoshikazu Kaneko, Norihiro Tokitoh. Synthesis, structures and properties of biferrocenyl- and ruthenocenyl-substituted diphosphenes. New Journal of Chemistry 2010, 34 (8) , 1560. https://doi.org/10.1039/c0nj00062k
- Norihiro Tokitoh, Akihiro Tsurusaki, Takahiro Sasamori. A Unique Thermal Reaction of 9-Anthryldiphosphene Leading to the Formation of a Triphosphirane Derivative. Phosphorus, Sulfur, and Silicon and the Related Elements 2009, 184 (4) , 979-986. https://doi.org/10.1080/10426500902719479
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- Zory Vlad Todres. Ion-Radical Organic Chemistry. 2008,,https://doi.org/10.1201/9781420008395
- Noriyoshi Nagahora, Takahiro Sasamori, Norihiro Tokitoh. Chalcogenation reactions of a stable ferrocenyldiphosphene: Formation of thia‐, selena‐, and telluradiphosphiranes. Heteroatom Chemistry 2008, 19 (5) , 443-449. https://doi.org/10.1002/hc.20449
- Norihiro Tokitoh, Keiji Wakita, Takeshi Matsumoto, Takahiro Sasamori, Renji Okazaki, Nozomi Takagi, Masahiro Kimura, Shigeru Nagase. The Chemistry of Stable Silabenzenes. Journal of the Chinese Chemical Society 2008, 55 (3) , 487-507. https://doi.org/10.1002/jccs.200800073
- Noriyoshi Nagahora, Takahiro Sasamori, Yoshinobu Hosoi, Yukio Furukawa, Norihiro Tokitoh. Generation, isolation, and reactivity of a kinetically stabilized diphosphene anion radical. Journal of Organometallic Chemistry 2008, 693 (4) , 625-632. https://doi.org/10.1016/j.jorganchem.2007.10.061
- René T. Boeré, Alan M. Bond, Steve Cronin, Noel W. Duffy, Paul Hazendonk, Jason D. Masuda, Kyle Pollard, Tracey L. Roemmele, Peter Tran, Yuankui Zhang. Photophysical, dynamic and redox behavior of tris(2,6-diisopropylphenyl)phosphine. New J. Chem. 2008, 32 (2) , 214-231. https://doi.org/10.1039/B709602J
- Takahiro Sasamori, Norihiro Tokitoh. Doubly bonded systems between heavier Group 15 elements. Dalton Trans. 2008, 99 (11) , 1395-1408. https://doi.org/10.1039/B715033D
- Noriyoshi Nagahora, Takahiro Sasamori, Yasuaki Watanabe, Yukio Furukawa, Norihiro Tokitoh. Kinetically Stabilized 1,1′-Bis[( E )-diphosphenyl]ferrocenes: Syntheses, Structures, Properties, and Reactivity. Bulletin of the Chemical Society of Japan 2007, 80 (10) , 1884-1900. https://doi.org/10.1246/bcsj.80.1884



