Crystal Data and Structure Refinement Details for (-)-Pseudosemiglabrin.

S = Goodness of fit, in general value of S should be close to 1.wR2 = Weighted Residual Factor is the most closely related to the refinement against squared structure factors. The weighting factor w is indivisually derived from the standard uncertanities of the measured reflections and expresses the confidence we have in every single reflection. This factor should be minimum during refinementR = Unweighted residual factor. This factor should also be minimum during refinement.Nref = Number of independent reflectionsNpar = the number of refined parametersRint = The merging residual value, reflects the summations involve all the input reflections for which more than one symmetry equivalent are averaged.