Just a short note on this: I often see colleagues using the word “twinning" when referring to a crystal that is actually multiple (not single).
I think much confusion arises from this. For me, a twin crystal is the one that looks single under the microscope and only intensity statistics reveal that the diffraction comes from more than one crystal. If a crystal looks multiple, i do not call it a twin. Am i being too meticulous on this? Thanks! > On 16 Mar 2021, at 13:31, Eleanor Dodson > <0000176a9d5ebad7-dmarc-requ...@jiscmail.ac.uk> wrote: > > You usually detect twinning most reliably from the intensity statistics - > CCP4I2 and Xtriage report those.. > Eleanor > > On Tue, 16 Mar 2021 at 07:31, Marina Gárdonyi > <marina....@pharmazie.uni-marburg.de > <mailto:marina....@pharmazie.uni-marburg.de>> wrote: > Dear all, > > thanks to all who helped me solving the question. You sent me a lot of > comments and information I have not taken into account. > After reading all the answers, I have come to the conclusion that the > spots that are very close to each other come from the long cell axis > (57-57-160) and that twinning can probably not be seen in my case. I > should have mentioned that the diffraction images came from an > in-house x-ray machine, recorded with a 0.5 degree rotation range. > > Thank you all again! > > Kind regards, > Marina > > -- > Marina Gárdonyi > > PhD Student, Research Group Professor Dr. Klebe > > Department of Pharmaceutical Chemistry > > Philipps-University Marburg > > Marbacher Weg 6, 35032 Marburg, Germany > > Phone: +49 6421 28 21392 > > E-Mail: marina....@pharmazie.uni-marburg.de > <mailto:marina....@pharmazie.uni-marburg.de> > > http://www.agklebe.de/ <http://www.agklebe.de/> > > ######################################################################## > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 > <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 > <http://www.jiscmail.ac.uk/CCP4BB>, a mailing list hosted by > www.jiscmail.ac.uk <http://www.jiscmail.ac.uk/>, terms & conditions are > available at https://www.jiscmail.ac.uk/policyandsecurity/ > <https://www.jiscmail.ac.uk/policyandsecurity/> > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 > <https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1> ######################################################################## 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/
