R Run hard@thehsc Well-Known Member Joined Oct 7, 2021 Messages 784 Gender Male HSC 2022 May 16, 2022 #1 ^^^^
someth1ng Retired Nov '14 Joined Sep 18, 2010 Messages 5,558 Location Adelaide, Australia Gender Male HSC 2012 Uni Grad 2021 May 17, 2022 #2 Being flat is good (e.g. benzene) and avoid big bulky groups (e.g. t-Bu).