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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 186, 2011 - Issue 5: 24th International Symposium on the Organic Chemistry of Sulfur
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Oral Contributions

Thermal Reaction of Octasilacubane with Sulfur, Selenium, and Tellurium: Formation of Novel Cage Systems

Professor Masafumi Unno Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Gunma, Japan
,
Mr Naoki Yamashita Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Gunma, Japan
&
Dr Hideyuki Matsumoto Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Gunma, Japan
Pages 1259-1262 | Received 25 Aug 2010, Accepted 15 Sep 2010, Published online: 12 Jul 2011

REFERENCES

  • For reviews, see: (a) , Sekiguchi , A. and Sakurai , H. 1995 . Adv. Organomet. Chem. , 37 : 1 – 38 . and references cited therein. The crystal structure of octasilacubanes were shown in
  • Sekiguchi , A. , Yatabe , T. , Kamatani , H. , Kabuto , C. and Sakurai , H. 1992 . J. Am. Chem. Soc. , 114 : 6260 – 6262 .
  • Furukawa , K. , Fujino , M. and Matsumoto , N. 1996 . J. Organomet. Chem. , 515 : 37 – 41 . and references 2 and 3
  • Matsumoto , H. , Higuchi , K. , Hoshino , Y. , Koike , H. , Naoi , Y. and Nagai , Y. 1988 . Chem. Commun. , : 1083 – 1084 .
  • Matsumoto , H. , Higuchi , K. , Kyushin , S. and Goto , M. 1992 . Angew. Chem., Int. Ed. , 31 : 1354 – 1356 .
  • Unno , M. 2005 . Organosilicon Chemistry VI , Edited by: Auner , N. and Weis , J. 373 – 380 . Weinheim, , Germany : Wiley-VCH Verlag .
  • Unno , M. , Yokota , T. and Matsumoto , H. 1996 . J. Organomet. Chem. , 521 : 409 – 411 .
  • Unno , M. , Matsumoto , T. , Mochizuki , K. , Higuchi , K. , Goto , M. and Matsumoto , H. 2003 . J. Organomet. Chem. , 685 : 156 – 161 .
  • Spectral data of 3: yellow solid; 29Si NMR (C6D6) δ –21.36; IR (NaCl, cm−1): 2960, 2929, 2862, 1730, 1261, 1074, 1020, 798; MS (EI, 70 eV) m/z: 936 (M+, 16), 851 (base), 767 (9), 681 (38), 599 (7)
  • Spectral data of 4: colorless semisolid: mp 206–209°C;29Si NMR (C6D6) δ–12.96, –11.44, –4.70, –3.18, 9.49; IR (NaCl, cm−1): 2960, 2925, 2866, 1456, 1259, 1087, 1029, 798; MS (EI, 70 eV) m/z: 936(M+, 9), 851(base), 767(12), 681(40), 599(10), 515(7), 431(10), 345(7)
  • Spectral data of 5: colorless solid: mp 194–197°C; 1H NMR (C6D6) δ 1.34 (s, 6H), 1.39 (s, 6H), 1.47 (s, 12H), 1.49 (s, 6H), 1.59 (s, 6H), 1.71 (s, 6H), 1.75 (s, 6H), 1.03 (d, 6H, J = 6.7 Hz), 1.05 (d, 6H, J = 6.7 Hz), 1.09 (d, 6H, J = 6.7 Hz), 1.10 (d, 6H, J = 6.7 Hz), 1.11 (d, 12H, J = 6.7 Hz), 1.12 (d, 6H, J = 6.7 Hz), 1.22 (d, 6H, J = 6.7 Hz), 2.36 (sept, 4H, J = 6.9 Hz), 2.49 (sept, 2H, J = 6.9 Hz), 2.60 (sept, 2H, J = 6.9 Hz); 29Si NMR (C6D6) δ –24.62, –11.66, –11.20, –1.66, 5.23; MS (EI, 70 eV) m/z: 1064 (M+, 13), 979 (20), 895 (28), 809 (29), 727 (13), 643 (10), 69 (base)
  • Spectral data of 8: yellow semisolid; MS (EI, 70 eV) m/z: 1034(M+, 11), 949(10), 861(27), 777(6), 694(5), 610(10), 69(base). During the measurement of NMR, decomposition occurred, and only the peaks of octasilacubane 1 were observed

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