#isomers

-- Isomers can be broken down into constitutional isomers and stereoisomers

-- Stereoisomers can be broken down further into enantiomers and diastereomers

-- Isomers = different compounds with the same molecular formula

-- Constitutional isomers = same formula, different connections

-- Enantiomers = mirror images

-- Diastereomers = some but not all chiral centers change

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Okay. so. I need all my crafty friends to check out my favorite new indie yarn company.  Check out the fun colors and stripes and everything is fun science themed!

This one is called Scopolamine, its my favorite but there are other great ones too and you can sort it by which isomers are your favorite!

This one is called Fumaric acid or trans-butenedioic acid and some portions go to a charity for trans folk which is really cool and nifty

Hello! This is my blog dedicated to my studies! I’ve always wanted to have a study notes blog and I’ve always been so inspired by the other study blogs.

I intend to post my notes, my to-dos and maybe share some of my tricks I use for studying.

I’m excited to share my Review of Isomerism from my book notes for Organic Chemistry I.

Using a manganese polymer to separate xylene isomers

A team of researchers at Zhejiang University in China, working with colleagues at Rutgers University in the U.S., has developed a way to use a manganese polymer to separate xylene isomers. In their paper published in the journal Science, the group describes the process and notes that it is simpler and less expensive than other methods.

Xylene isomers are important chemical intermediates that are often used to make different types of plastics. Three of them are of particular value: par, meta and ortho. Unfortunately, as they are synthesized in standard processes, they come out bound together. In order to be useful, they must be separated. But doing so has proven to be time-consuming and expensive. This is because all three have similar structures and boiling points.

The work by the researchers involved finding a material that could serve as an adsorber—where molecules of a liquid or gas form a thin film on a surface that can then be collected. They searched for one-dimensional coordination porous polymers that were known to have flexibility and identified manganese, which initially seemed as if it would not work because its pores are too small. But the researchers found that when exposed to a xylene mixture, its structure swelled, increasing the distance between the polymer chains and making the pores bigger. And that allowed for adsorption and consequent separation of the isomers.

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