Selenoketene substitution structure |
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Authors: | Børge Bak Ole J Nielsen Henrik Svanholt Arne Holm |
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Institution: | Chemical Laboratory V. The H.C. Ørsted Institute, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark;Chemical Laboratory II, The H.C. Ørsted Institute, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark |
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Abstract: | Microwave studies (26.5–40 GHz) of further isotopic species of selenoketene formed by pyrolysis of 1,2,3-selenodiazole (12CH212C76,77,82Se, 12CH213C80Se and 13CH212C80Se) and by pyrolysis of 5-deuterio-1,2,3-selenodiazole (12CHD12C78,80Se) are reported. In conjunction with earlier results for 12CH12C78,80Se an rs structure has been derived with distances SeC (1.706 Å), CC (1.303 Å), CH (1.0908 A) and a HCH bond angle of 119.7°. The geometry of the CH2C moiety of selenoketene is closer to allene, CH2CCH2, than to ketene, CH2CO. |
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