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Henry Rzepa's Blog

Henry Rzepa's Blog
Chemistry with a twist
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I started this story by looking at octet expansion and hypervalence in non-polar hypercoordinate species such as S(-CH 3 ) 6 , then moved on to S(=CH 2 ) 3 . Finally now its the turn of S(≡CH) 2 . As the triple bonds imply, this seems to represent twelve shared valence electrons surround the sulfur, six from S itself and three from each carbon.