Coordinates of points of attachment



The tables in this appendix list coordinates of points of attachment that will probably be used most frequently with the techniques described in chapter V. Table [*] lists the coordinates of the six corners of the carbon sixring and the coordinates at the end of the six bonds extending from the sixring.


Table: Points of attachment in the sixring
Sixring Position Ring Corner End of Bond
1 (342,200) (470,277)
2 (342,0) (470,-77)
3 (171,-103) (171,-203)
4 (0,0) (-128,-77)
5 (0,200) (-128,277)
6 (171,303) (171,403)


The ring structures typeset by the macros \fivering, \naphth, \steroid, \hetifive, \heticifive, \pyrazole, \hetisix, \pyrimidine, and \purine have identical coordinates at positions that are equivalent to the sixring positions in regard to the printed diagram. (The position numbers are not necessarily the same as those of the sixring.)

Table [*] lists the coordinates of other points of attachment in structures typeset by various macros.

Table: Points of attachment in various structures
Macro Position Description Coordinates
\cbranch begin of left bond (-150,33)
\cbranch end of right bond (230,33)
\cright begin of left bond (-150,33)
\cleft end of right bond (230,33)
\chemup end of vertical bond (33,-150)
\cdown end of vertical bond (33,220)
\threering ring position 1 (300,0)
\threering end of bond on 1 (428,77)
\naphth ring position 1 (513,303)
\naphth end of bond on 1 (513,403)
\naphth ring position 2 (684,200)
\naphth end of bond on 2 (812,277)
\steroid end of vert. bond on 17 (1026,706)
\hetthree end of bond on 3 (580,30)
\pyranose end of alpha bond (688,100)
\pyranose end of beta bond (688,-100)
\furanose end of alpha bond (553,-63)
\furanose end of beta bond (553,63)
\furanose end of vert. long bond (448,380)
\purine point below N(9) (513,-130)
\fuseiv upper point of attachment (0,200)
\fuseiv lower point of attachment (0,0)
\fuseup upper point of attachment (-171,303)
\fuseup lower point of attachment (0,200)
\fuseiii upper point of attachment (0,200)
\fuseiii lower point of attachment (0,0)