Ethane, n-butane and cyclohexane

For ethane, the r r is known to very high precision propane, also the r = r is known. The r is significantly dif-For isobutane, the r = 2 ° very detailed 

Tris-(tert-butyl)-methane, an extremely crowded molecule, has been a 96 60 44 

The anomeric CO bond presents a special problem in carbohydrate 

It is relevant to refer to a recent review of crystal structure of esters by Schweizer and Dunitz, which may be useful also in the present context. 

For the purpose of optimising a potential energy function for transition metal complexes with coordinated diamines, another main activity of our group, we have selected a few diamines and diammonium ions for the data bank. 

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