Pyramidal Structures: New Type of Cluster Compounds

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05413
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Organic chemistry
• Research Institution: University of Tsukuba
• Principal Investigator: Lee Vladimir 筑波大学, 数理物質系, 講師 (90375410)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: cluster / pyramidane / housene / cyclobutadiene dianion / group 14 element / group 15 element

Outline of Final Research Achievements

Pyramidanes are among the most challenging synthetic targets for organic chemistry, which are still eluded their synthetic realization despite their evident interest and importance. Neither parent pyramidane C[C4H4] nor its derivatives have ever been isolated and characterized. In the current project, we proposed and developed totally new synthetic strategy for the preparation of such elusive species by the straightforward reaction of the readily available cyclobutadiene dianion derivatives (developed in our group) with the main group elements halides. Using this simple approach, we succeeded in the synthesis of a whole series of the neural group 14 element pyramidanes and their isoelectronic cationic counterparts featuring heavier group 15 element at the top of the square pyramid. All newly isolated pyramidanes were undoubtedly structurally characterized.

Free Research Field

有機化学