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You have tagged quite a few of my structures with ''"Methoxy groups should not be linear"''. I had explained this earlier to another user somewhere. Aromatic methoxy groups and other aromatic ethers are always oriented perpendicular to the aromatic ring for steric reasons. If you look at the model from above the aromatic plane, the methoxies appear straight. I am a big proponent of retaining as many 3D structural features in 2D as possible without sacrificing clarity and correctness. We cannot use the straight orientation for carbon chains as this obscures the center carbon in skeletal structures, but I do not see a reason not to do this for aromatic ethers and I am not aware of any general rule not to do so. Maybe you can rethink your tags... :-) [[User:Cacycle|Cacycle]] ([[User talk:Cacycle|talk]]) 23:39, 31 March 2009 (UTC)
:I don't recall tagging images with that comment. Can you give me an example? I did find one that I commented "An ether is preferably drawn with a 120° angle" ([[:File:Duloxetine chemical structure.png]]). In any case, please feel free to remove any image-quality tag I've added that you disagree with. I certainly won't object. I guess different chemists have different concerns about how best to draw a 2D structure. For example, I wouldn't mark images such as [[:File:Acetyldihydrocodeine.svg]] as having the "wrong use of hashed bonds". But I see your point about aryl ethers, and I'll take your advice and refrain from tagging images with 180° ether groups. Thanks for the comment. -- [[User:Edgar181|Ed]] ([[User talk:Edgar181|Edgar181]]) 12:32, 1 April 2009 (UTC)
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