Talk:Structural formula

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Chair perspective

"A ring structure can be drawn in chair perspective." Huh? -- postglock 12:55, 20 September 2005 (UTC)[reply]

I believe the editor was trying to refer to the different arrangements of cyclohexane, where the chair conformation is the lowest energy form. I've expanded the section a bit to cover the use of dots & wedges in all three-dimensional molecules. GeeJo _{(t) (c)} 15:25, 6 December 2005 (UTC)[reply]

I think that the chair is a teaching point used to explain optical isomerism, when drawn in a certain way a molecule could be made to look like a chair and it's reverse a non-super imposable chair - see [1] for details. Philipwhiuk (talk) 14:26, 6 January 2008 (UTC)[reply]

R

Some articles like keytone and functional group follow the standard practice of using "R" (sometimes with subscripts) to represent arbitrary structures. This practice should be explained in this article including why "R" is the symbol chosen and what it stands for. (Radical (chemistry)?) I've added the same note to Talk:Chemical formula. -- Beland (talk) 16:15, 19 April 2008 (UTC)[reply]

Origin

Hey, the history is completely missing! Was is Edward Frankland in its Lecture Notes for Chemical Students (1866) who introduced the graphical notation (see the book at Google books)? -- Nichtich (talk) 15:12, 25 May 2008 (UTC)[reply]

Example?

The article says "Their structural formulae are shown at right:" - but I don't believe they are...

Diagrams are shown indicating the arrangement of atoms, but the actual structural formulae (to my understanding) are not shown. For instance, for isobutane, in the structural formula CH(CH_3)_3, indicating than the central sub-structure should be written first?

Sorry if this is a really silly point / question - I'm looking at this article for a reason :-)