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Title: Is there a free rotation about the carbon-carbon triple bond?

Conference ·
OSTI ID:559894
 [1]
  1. Pacific Northwest National Lab., Richland, WA (United States)

To teach college students the concept of a {pi}-bond, many professors like to use the examples of ethylene and acetylene molecules. Free rotation, restricted rotation, breaking or forming a {pi}-bond are frequently asked questions about the molecules. The cylindrical shape of the {pi} election cloud of acetylene is introduce in most chemistry text books. Some teachers may ask a similar question about the triple bond of acetylene molecule after the question of {open_quotes}Is there a free rotation along the C-C double bond?{close_quotes} being answered {open_quotes}no{close_quotes}. However, the correct answer for the acetylene should be {open_quotes}YES{close_quotes}. The reason for the free rotation about the carbon-carbon triple bond will be discussed experimentally and computationally.

OSTI ID:
559894
Report Number(s):
CONF-970443-; TRN: 97:005895-0038
Resource Relation:
Conference: 213. national meeting of the American Chemical Society, San Francisco, CA (United States), 13-17 Apr 1997; Other Information: PBD: 1997; Related Information: Is Part Of 213th ACS national meeting; PB: 2904 p.
Country of Publication:
United States
Language:
English