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Figure 5
(a) The vicinal dialcohol; R1(OH)CH—CH(OH)R2 search fragment. (b) The possible conformers available to the chiral molecule. The standard notation for R and S forms is used for the hands of the molecules; a designator of either e or s denotes whether the form is eclipsed or staggered respectively; forms with similar designators are separately identified by an additional number. The chemically symmetrical nature of the search fragment means that the third R*S* structure for both the staggered and eclipsed forms is identical to one of the other forms, and so is not explicitly given here. The eclipsed structures are named for their staggered equivalents.

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