Preposition: of

• acid: CLA, found naturally in many animal products, consists of positional and geometric isomers of linoleic acid.

• compound: In most biological systems only one optical isomer of each organic compound is usually present.

Converse of object

• form: You will get hardly any of the 3- isomer formed - it is produced too slowly.

• have: Where you have isomers, the more branched the chain, the lower the boiling point tends to be.

• draw: It's extremely important to draw the isomers correctly.

• give: Drawing structural formulae for the last pair of models gives two possible isomers.

• call: Compounds that have the same formula but differ in their atomic positions, like these two, are called isomers.

Adjective modifier

• permutational: For a real PES, there are permutational isomers of each minimum.

• positional: Trans and positional isomers are formed during this process, and these are found in depot fat and milk fat.

• geometric: It is easy to miss geometric isomers in an exam.

• geometrical: Not only is the product a stereospecific optical isomer, the reactant is it self a stereospecific geometrical isomer!

• optical: The active site of an enzyme will only be able to operate on one type of optical isomer.

• structural: For example, there are two structural isomers with the molecular formula C 3 H 7 Br.

Modifies a noun

• shift: The isomer shift should always be quoted with respect to a standard material.

Noun used with modifier

• s-trans: The geometry of the s-trans isomer also shows a significant double bond character for the N-P bond.

• s-cis: This bond distance is longer for the s-cis isomer, which also shows a shortening of the central N-N bond ( Figure 1 ).

• cis: You will notice that: the trans isomer has the higher melting point; the cis isomer has the higher boiling point.

• trans: You will notice that: the trans isomer has the higher melting point; the cis isomer has the higher boiling point.

• chain: I have put models of the chain isomers of pentane here.

• group: There are two functional group isomers of which you need to be aware: alcohols and ethers aldehydes and ketones What is here?