I am confused about the (+) and (-) abbreviations for describing optical isomers. The abbreviation page on this site indicates that (-) is dextro and (+) is levo. However, in other chemistry-related web sites and books that I have read, (+) is dextro and (-) is levo. Who is correct?
Dextro - light rotates clockwise
Levo - light rotates anti-clockwise
So that makes dextro (+) and levo (-)
Hope that helps.
Where is the page that says dextro is (-)???
-AC
For those unfamiliar with stereochemistry nomenclature reading IUPAC recommendations will be beneficial:
Stereochemical Terminology (http://www.chem.qmul.ac.uk/iupac/stereo/)
(http://www.chem.qmul.ac.uk/iupac/stereo/)
Where is the page that says dextro is (-)???
The hive's own abbreviation page, in the FAQ section.
https://www.the-hive.ws/forum/showtext.pl?Cat=&Show=abbrev (https://www.the-hive.ws/forum/showtext.pl?Cat=&Show=abbrev)
Must be a typo.
I always get things like that around the wrong way so i looked it up before i posted to make sure it was right...
-AC
It is a typo, and we'll fix it.