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How to Design Linear Allenic-Type Trisilaallenes and Trigermaallenes Monica Kosa, Miriam Karni,* and Yitzhak Apeloig*
 

Summary: How to Design Linear Allenic-Type Trisilaallenes and Trigermaallenes
Monica Kosa, Miriam Karni,* and Yitzhak Apeloig*
Department of Chemistry and the Lise Meitner-MinerVa Center for Computational Quantum Chemistry,
Technion-Israel Institute of Technology, Haifa 32000, Israel
Received March 25, 2004; E-mail: chrapel@techunix.technion.ac.il; chrmiri@techunix.technion.ac.il
The chemistry of compounds containing multiple bonds to silicon
has developed rapidly since the isolation of the first stable silene
and disilene in 1981.1,2 A variety of compounds with CdE and
EdE (E ) Si, Ge, Sn, Pb) bonds were isolated, characterized,1,2
and studied theoretically.3 Experimental1,2,4 and theoretical3 studies
revealed that the double-bonded compounds of silicon and its
heavier group - 14 analogues usually adopt trans-bent structures,
1, in contrast to the planar carbon analogues, 2.
In contrast to the substantial information which is already
available for compounds with CdE and EdE bonds, very little is
known, either experimentally5 or theoretically,3a,b about compounds
with an extended skeleton of multiple bonds of the types
EdCdC, EdEdC, EdCdE, or EdEdE. The first two compounds
of this type, R1
2EdCdCR2R3 (E ) Si, Ge) (3), were synthesized

  

Source: Apeloig, Yitzhak - Department of Chemistry, Technion, Israel Institute of Technology

 

Collections: Chemistry