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A CAS SCF CI study ...
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Lindh, Roland,1958-Department of Theoretical Chemistry, Lund University
(author)
A CAS SCF CI study of the hydrogen migration potential in protonated acetylene, C2H3+
- Article/chapterEnglish1987
Publisher, publication year, extent ...
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Elsevier BV,1987
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printrdacarrier
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LIBRIS-ID:oai:DiVA.org:uu-143956
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-143956URI
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https://doi.org/10.1016/0009-2614(87)80582-1DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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CAS SCF CI studies have been performed on the protonated acetylene molecule, using extended Gaussian basis sets (C/5s, 4p,2d, lf/H/3s, 2p) of the general contraction type. Full geometry optimization has been performed for the classical and non-classicalstructures, and along a planar rearrangement path between these two structures. The non-classical bridged structure is found tobe about 4 kcahmol more stable than the classical one. A small barrier ( < 1 kcallmol ) is predicted along the rearrangement path.The proton affinity of acetylene has been calculated to have a value of 154.8 kcallmol, in good agreement with the experimentalestimate of 153.3 kcabmol. The rotationai constant for rotation around the CC bond has been determined to be 13.42 cm- ‘. Thestretching frequency for the bridging proton perpendicular to the CC bond was found to be 2100 cm-‘.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Roos, Björn O
(author)
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Kraemer, Wolfgang P
(author)
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Department of Theoretical Chemistry, Lund University
(creator_code:org_t)
Related titles
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In:Chemical Physics Letters: Elsevier BV139:5, s. 407-4160009-26141873-4448
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