Dear all, Let me ask a question about the P3,H3, R3 space group annotations. I had the idea that H3 was the recommended annotation for the hexagonal representation of R3 (space group number 146). However, in the Birbeck space groups web page (attached) H3 is associated with the space group number 143 corresponding to P3. Similarly for all the other H groups assigned in the page. Moreover in the web page none of the R space groups is assigned to an H annotation.
H3 corresponds to 143 or to 146? Is there a space group 154 annotated as H32 1 2? Many thanks. "Note that the figure showing the relationship between primitive and R-centred rhomohedral cells with hexagonal axes is clickable Rhombohedral with Hexagonal axes 146. *R* 3 <http://img.chem.ucl.ac.uk/sgp/large/146bz1.htm> 148. *R* -3 <http://img.chem.ucl.ac.uk/sgp/large/148bz1.htm> 155. *R* 3 2 <http://img.chem.ucl.ac.uk/sgp/large/155bz1.htm> 160. *R* 3 *m* <http://img.chem.ucl.ac.uk/sgp/large/160bz1.htm> 161. *R* 3 *c* <http://img.chem.ucl.ac.uk/sgp/large/161bz1.htm> 166. *R* -3 *m* <http://img.chem.ucl.ac.uk/sgp/large/166bz1.htm> 167. *R* -3 *c* <http://img.chem.ucl.ac.uk/sgp/large/167bz1.htm> H-centred Trigonal 143. *H* 3 <http://img.chem.ucl.ac.uk/sgp/large/143bz1.htm> 144. *H* 31 <http://img.chem.ucl.ac.uk/sgp/large/144bz1.htm> 145. *H* 32 <http://img.chem.ucl.ac.uk/sgp/large/145bz1.htm> 147. *H* -3 <http://img.chem.ucl.ac.uk/sgp/large/147bz1.htm> 149. *H* 3 2 1 <http://img.chem.ucl.ac.uk/sgp/large/149bz1.htm> 150. *H* 3 1 2 <http://img.chem.ucl.ac.uk/sgp/large/150bz1.htm> 151. *H* 31 2 1 <http://img.chem.ucl.ac.uk/sgp/large/151bz1.htm> 152. *H* 31 1 2 <http://img.chem.ucl.ac.uk/sgp/large/152bz1.htm> 153. *H* 32 2 1 <http://img.chem.ucl.ac.uk/sgp/large/153bz1.htm> 154. *H* 32 1 2 <http://img.chem.ucl.ac.uk/sgp/large/154bz1.htm> 156. *H* 3 1 *m* <http://img.chem.ucl.ac.uk/sgp/large/156bz1.htm> 157. *H* 3 *m* 1 <http://img.chem.ucl.ac.uk/sgp/large/157bz1.htm> 158. *H* 3 1 *c* <http://img.chem.ucl.ac.uk/sgp/large/158bz1.htm> 159. *H* 3 *c* 1 <http://img.chem.ucl.ac.uk/sgp/large/159bz1.htm> 162. *H* -3 *m* 1 <http://img.chem.ucl.ac.uk/sgp/large/162bz1.htm> 163. *H* -3 *c* 1 <http://img.chem.ucl.ac.uk/sgp/large/163cz1.htm> 164. *H* -3 1 *m* <http://img.chem.ucl.ac.uk/sgp/large/164bz1.htm> 165. *H* -3 1 *c* <http://img.chem.ucl.ac.uk/sgp/large/165cz1.htm> ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
