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External links modified
editHello fellow Wikipedians,
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- Added archive https://web.archive.org/web/20090312073209/http://decalinchemicals.com:80/fueladditive.html to http://www.decalinchemicals.com/fueladditive.html
- Added archive https://web.archive.org/web/20100619083556/http://idea.library.drexel.edu/bitstream/1860/16/11/agosta_thesis.pdf to http://idea.library.drexel.edu/bitstream/1860/16/11/agosta_thesis.pdf
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9–10 bond
editThe article talks about “a two-fold rotational symmetry axis going through the center of the 9–10 bond”, presumably referring to the numbering of the carbon chain. However, as the article Bicyclic molecule states, “bicyclic molecules have a strict nomenclature. [...] Numbering of the carbon chain always begins at one bridgehead atom (where the rings meet) [...]”. In this nomenclature, if I understand it correctly, the rotational symmetry axis therefore would go through the center of the 1–6 bond. Since this half sentence is somewhat trivial, anyway, - of course the axis goes through the center of the molecule - I will therefore remove it. ◄ Sebastian 09:49, 21 August 2019 (UTC)
cis-Decalin conformation
editThe ball-and-stick model of cis-decalin shows it in a double-boat conformation, which I highly doubt to be the ground state. Indeed it is very much possible for it to be in a double-chair conformation, which I highly suppose to be the lowest energy conformation. A quick check using MMFF94 force field gives a whopping energy difference of about 36kJ/mol. Any thoughts on that?
Figures 5 and 6
editUnder trans-decalin, Figures 5 and 6 are referred to, but the article doesn't have Figures 5 and 6 ??? 99.167.202.76 (talk) 23:44, 21 July 2023 (UTC)
- There's also a parenthetical reference to a bond shown in blue that does not appear anywhere in any figures. Was there some substantial deletion of content from this article at some point? Lumberjane Lilly (talk) 14:02, 22 December 2023 (UTC)
History
editWho first made it? When was it first used? No history on it. Going to check my printed dictionary now. --Mark v1.0 (talk) 00:55, 4 April 2024 (UTC)