12.1 Introdu ctlery Maalmgial rer chel gineaning Procss mouelyses of Metaliucsak ruscters Peurpose: desin ond oporktim ophmiyt. Centents: optrkm chmnctnstics of reactor type od deviatie frem ider eues apeuts of eptrnhi pomotrs ehpicinty of + rector Drocais( LNErs m, prodv chivify etc.) Hinding opfmuom p6tmetens duign. rnctors 4findiny aphimum. porioutrs fr apeinpo mut be preinted ont that the splinum tenditieu for inodiviolud
An equimolar mixture of two enantiomers is called a racemic form (either a racemate or a racemic mixture). A racemic form shows no rotation of planepolarized light
Before 1951 only relative configurations of chiral molecules were known. Configurations of chiral molecules were related to each other through reactions of known stereochemistry. The standard compound was glyceraldehyde