cahn-ingold-prelog

D and L Sugars

May 24, 2017

What differentiates “D-glucose” from “L-glucose” ? Or D-alanine from L-alanine? What’s this D- and L- nomenclature, anyway? For everyone in a rush, here is the quick and dirty answer: For…

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Optical Rotation, Optical Activity, and Specific Rotation

February 7, 2017

As the title suggests, today’s post is all about optical rotation, optical activity, and specific rotation. This post was co-authored with Matt Pierce of Organic Chemistry Solutions.  Ask Matt about scheduling…

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Assigning R/S To Newman Projections (And Converting Newman To Line Diagrams)

Assigning R/S To Newman Projections (And Converting Newman To Line Diagrams)

February 1, 2017

This post was co-authored with Matt Pierce of Organic Chemistry Solutions.  Ask Matt about scheduling an online tutoring session here. In two recent posts we discussed how to assign (R/S) to configurations of chir…

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Alkene Nomenclature: Cis and Trans and E and Z

Alkene Nomenclature: Cis and Trans and E and Z

November 3, 2016

This post was co-authored with Matt Pierce of Organic Chemistry Solutions.  Ask Matt about scheduling an online tutoring session here. Earlier on our MOC series on cycloalkanes, we saw that a key feature of small …

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Introduction to Assigning (R) and (S): The Cahn-Ingold-Prelog Rules

Introduction to Assigning (R) and (S): The Cahn-Ingold-Prelog Rules

October 20, 2016

This post was co-authored by Matt Pierce of Organic Chemistry Solutions.  Ask Matt about scheduling an online tutoring session here. Previously on MOC we’ve described enantiomers: molecules that are non-superim…

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Khan Academy for Organic Chemistry – Part 2

Khan Academy for Organic Chemistry – Part 2

September 21, 2012

Khan Academy for Organic Chemistry, Part 2: Bonding, Conformations, and Stereochemistry This second  installment of the guide to Khan Academy organic chemistry videos covers videos 13 to 26, covering the topics of ch…

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