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Statistics for contacts between urea; cis,trans and any OH



More Info on the Statistics


Source Nb Nc 100*Nc/Nb drel
CSD 35 22 63 (17)  


Nb : the number of crystal structures that have both the central and contact groups present.
Nc : the number of crystal structures in which the central group and contact group form a contact with distance (R) less than the sum of van der Waals radii (V).
drel : relative density, is defined as drel = dshort/dlong, where dshort is the density of contact groups with R<V, and dlong is the density of contact groups with V<R<V+0.5.




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