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J. Am. Chem. SOC. 1995,117, 7263-7264 7263 Triple Bonds to Silicon. Relative Stabilities and
 

Summary: J. Am. Chem. SOC. 1995,117, 7263-7264 7263
Triple Bonds to Silicon. Relative Stabilities and
Energy Barriers Separating Silanitriles and
Silaisonitriles. An ab Initio Study
Table 1. Relative Energies (kcaymol) of RN=Si (Taken as Zero)
and RSiEN Isomers
R AE" R AEa
Yitzhak Apeloig* and Karsten Albrecht
Department of Chemistry
Technion-Israel Institute of Technology
Haifa 32000, Israel
Received February 8, 1995
Stable compounds with a double bond to silicon were first
synthesized in 1981, and since then they have been studied
extensively both experimentally'a-c and theoretically.Id In
contrast, stable species with a triply-bonded silicon are still
unknown, and only three transient species, HNSi,2HSiN,3and
PhNSi,4 have been characterized spectroscopically. Of these
species only HSilN possesses a formal triple bond while the
isomeric silaisonitriles, HN=Si and PhN=Si, can be regarded

  

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

 

Collections: Chemistry