A Stable Compound Containing a Silicon-Silicon Triple Bond

@article{Sekiguchi2004ASC,
  title={A Stable Compound Containing a Silicon-Silicon Triple Bond},
  author={Akira Sekiguchi and Rei Kinjo and Masaaki Ichinohe},
  journal={Science},
  year={2004},
  volume={305},
  pages={1755 - 1757}
}
The reaction of 2,2,3,3-tetrabromo-1,1,4,4-tetrakis[bis(trimethylsilyl)methyl]-1,4-diisopropyltetrasilane with four equivalents of potassium graphite (KC8) in tetrahydrofuran produces 1,1,4,4-tetrakis[bis(trimethylsilyl)methyl]-1,4-diisopropyl-2-tetrasilyne, a stable compound with a silicon-silicon triple bond, which can be isolated as emerald green crystals stable up to 100°C in the absence of air. The SiSi triple-bond length (and its estimated standard deviation) is 2.0622(9) angstroms, which… 

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