IR Spectroscopy: 4 Practice Problems
IR Spectroscopy Practice Problems By itself, Infrared (IR) spectroscopy isn’t a great technique for solving the structure of an unknown molecule. However, we’ve seen that
Read more1H NMR: How Many Signals?
How Many Unique 1H NMR Signals In A Molecule? How many signals will appear in the proton (1H)NMR spectrum of a molecule? If the answer
Read moreHomotopic, Enantiotopic, Diastereotopic
Homotopic, Enantiotopic, and Diastereotopic Groups: What Does It Mean? When you have two hydrogens attached to a single carbon, they can have three different types
Read moreDiastereotopic Protons in 1H NMR Spectroscopy: Examples
Diastereotopic Protons In Alkenes, Cyclic Molecules, and Molecules Containing a Chiral Center Diastereotopic protons are chemically non equivalent protons that each produce distinct chemical shifts.
Read more13-C NMR – How Many Signals
Chemical Shift Equivalence – How Many Unique Signals? 13C NMR (proton-decoupled) Just like with 1H NMR, chemical shift equivalence applies to 13C NMR. A spectrum
Read moreLiquid Gold: Pheromones In Doe Urine
The Organic Chemistry Of… Doe Urine? That’s right. The organic chemistry of doe urine is awesome! Table of Contents About That Time My Car Got
Read moreNatural Product Isolation (1) – Extraction
Natural Product Extraction: Obtaining Molecules From Organisms “Let’s plant catnip”, they said. “It will keep away mosquitoes”, they said. [from r/pics . h/t @curiouswavefn] In the
Read moreNow Available – The Spectroscopy Pack (PDF)
One of the most common complaints I hear from readers of Master Organic Chemistry is that there isn’t a lot of coverage of spectroscopy. And I’ve
Read moreOn Cats, Part 1: Conformations and Configurations
[NOTE: this has been amended to correct some confusion on my part on the difference between configurational and constitutional isocats. Thanks to Prof. Gary Weisman
Read moreWhat’s An Organometallic?
What Is The Definition of An Organometallic Compound? In many of the functional groups in organic chemistry, carbon is attached to a more electronegative element,
Read more