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Category: Organic chemistry

Cat Links Organic chemistry

How to prepare a halogenoalkane

Posted on May 23, 2023April 3, 2025 Sarah Parkes

There are number of ways to make a halogenoalkane, each of which has its own advantages and disadvantages. Halogenation of

Continue readingHow to prepare a halogenoalkane

Cat Links Analytical chemistry, Organic chemistry, Spectroscopy

Explaining C=O absorption bands in IR spectroscopy

Posted on February 8, 2023October 2, 2024 Sarah Parkes

Your may have noticed on the data sheet that the wavenumber for the absorption of C=O bonds very much depends

Continue readingExplaining C=O absorption bands in IR spectroscopy

Cat Links Organic chemistry, Spectroscopy

Everything you need to know about C-13 NMR spectroscopy

Posted on December 18, 2022May 1, 2025 Sarah Parkes

13C NMR signals are considerably weaker than 1H NMR signals because the natural abundance of 13C is 1.1%. We also

Continue readingEverything you need to know about C-13 NMR spectroscopy

Cat Links Organic chemistry, Spectroscopy

Everything you need to know about proton (H-1) NMR Spectroscopy

Posted on December 10, 2022April 10, 2025 Sarah Parkes

In proton or 1H NMR spectroscopy the sample is dissolved in a solvent such as tetrachloromethane, CCl4, or trichlorodeuteriomethane, CDCl3

Continue readingEverything you need to know about proton (H-1) NMR Spectroscopy

Cat Links Organic chemistry

Understanding nuclear magnetic resonance spectroscopy

Posted on November 8, 2022October 3, 2024 Sarah Parkes

We are familiar with the idea that electrons possess an intrinsic quantum property known as spin (we met this when

Continue readingUnderstanding nuclear magnetic resonance spectroscopy

Cat Links Organic chemistry

Elimination reactions – dehydrating an alcohol

Posted on August 1, 2022April 3, 2025 Sarah Parkes

If we dehydrate an alcohol, we are essentially removing a water molecule and the product will be an alkene. The

Continue readingElimination reactions – dehydrating an alcohol

Cat Links Organic chemistry

Electrophilic addition in alkenes (3) – reaction with water to form an alcohol

Posted on August 1, 2022October 2, 2024 Sarah Parkes

The reaction of an alkene with water to from an alcohol is an example of a hydration reaction. The alkene

Continue readingElectrophilic addition in alkenes (3) – reaction with water to form an alcohol

Cat Links Organic chemistry

Electrophilic addition in alkenes (2) – the bromine water test

Posted on August 1, 2022February 19, 2025 Sarah Parkes

The classic test for an alkene is to shake your sample with orange bromine water, and if the molecule contains

Continue readingElectrophilic addition in alkenes (2) – the bromine water test

Cat Links Organic chemistry

Making addition polymers by radical polymerisation

Posted on August 1, 2022October 2, 2024 Sarah Parkes

The mechanism for addition polymerisation is another example of a radical reaction. Teflon (PTFE), famously known for its non-stick properties,

Continue readingMaking addition polymers by radical polymerisation

Cat Links Organic chemistry

Addition polymers and their properties

Posted on August 1, 2022March 5, 2025 Sarah Parkes

Polymers are long chain molecules made via addition polymerisation or condensation polymerisation – the result are all the plastics, fibres

Continue readingAddition polymers and their properties

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