Thanks to all the respondents. Very useful links on a generally interesting topic. I was pretty sure
that this is another case of imprecise notation/definition because even with my limited QM I cannot see a true pi-stacking in the sense of the narrow definition. But, it seems to be frequently used in the context with sugarCH-aromatic interaction, which is not good. Much obliged, BR _____ From: CCP4 bulletin board [CCP4BB@JISCMAIL.AC.UK] on behalf of Bernhard Rupp [hofkristall...@gmail.com] Sent: Wednesday, August 23, 2017 8:18 PM To: CCP4BB@JISCMAIL.AC.UK <mailto:CCP4BB@JISCMAIL.AC.UK> Subject: [ccp4bb] Sugar-Pi-stacking Hi Fellows, there are some smart chemists amongst you, so I wonder - what precisely am I to understand is the nature of pi-stacking between an aromatic residue or (whatever pi-orbital moiety) and a sugar moiety, disaccharide etc.? Thanks for your help, BR ------------------------------------------------------ Bernhard Rupp http://www.hofkristallamt.org/ b...@hofkristallamt.org <mailto:b...@hofkristallamt.org> +1 925 209 7429 +43 767 571 0536 ------------------------------------------------------ All models are wrong but some are useful. ------------------------------------------------------
