Cyclic alkynes - Electronic behaviour as a function of ring strain

Chemical Communications

Volumn , Issue 10, 1999, Pages 905-906

  Tykwinski, Rik R ^a  

^a UNIVERSITY OF ALBERTA   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ALKYNE; CARBON; MACROCYCLIC COMPOUND; ORGANIC COMPOUND;

ARTICLE; CARBON NUCLEAR MAGNETIC RESONANCE; CONJUGATION; ELECTRONICS; ULTRAVIOLET SPECTROSCOPY;

EID: 0033591239     PISSN: 13597345     EISSN: None     Source Type: Journal    
DOI: 10.1039/a900910h     Document Type: Article

References (21)

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21. A change in absorption energy as a result of angle deformation would also be expected for the in-plane π-system of the central butadiyne moiety of 8a-c, as has been previously shown for cycloalkynes (ref. 8). Whereas absorptions are observed in the expected region of the butadiyne segment (ca. 250-275 nm) of 8a-c, interpretation of shifts is, at this point, inconclusive. The expected absorption range of 250-275 nm is based on the lowest energy absorptions of known butadiyne derivatives, see: J. B. Armitage and M. C. Whiting, J. Chem. Soc., 1952, 2005. I thank one of the reviewers for helpful suggestions.