Synthesis and Characterization of New Spirooxytellurane [10-Te-4(C3O)] Having SO₃ Unit

Abstract

Bis(2,2′-biphenylylene)tellurane 1 reacted with an equivalent of sulfuryl chloride to give a new spirooxytellurane 2 having SO₃ unit at the apical site as a stable colorless crystal together with bis(2,2′-biphenylylene)dichloropertellurane 3. The structure of spirooxytellurane 2 was determined by X-ray crystallographic analysis, revealing that it has a distorted trigonal bipyramidal (TBP) bonding geometry.

Keywords:

• Hypercoordinate
• SO₃ unit
• spirooxytellurane
• trigonal bipyramidal structure
• X-ray crystallographic analysis

Acknowledgments

Dedicated to Professor Naomichi Furukawa on the occasion of his 70th birthday.

This work was supported by the Ministry of Education, Science, Sports and Culture, Japan [Grant-in-Aid for Scientific Research on Priority Areas: Grant No. 09239104, Grant-in Aid for Scientific Research (B): Grant No. 11440186, and Grant-in-Aid for Encouragement of Young Scientists: Grant No. 10740286], and the Fund of Tsukuba Advanced Research Alliance (TARA) project (University of Tsukuba). We thank Professor W. Fujita (Tokyo Metropolitan University) for valuable consultation concerning X-ray crystallographic analysis.