Chemistry Forum

Hi There,

What is the purpose of the citrate ions used when making gold nanoparticles? Is it to prevent continued growth of the nanoparticles? I'm trying to think of at least 2 reasons citrate is used?

Thanks

Hello :) The reaction below is a Lewis Acid (CuSO4) catalysed reaction of cyclopentadiene with glyoxylic acid in water (see link): http://i63.tinypic.com/j9aadl.png The work-up then involved extracting the excess cyclopentadiene in cyclohexane and collecting the product in the aqueous water layer. T...

Thank you! After pondering over it myself for awhile I came to the same conclusion Thanks.

Hi There,

Could someone help me draw a mechanism for the reaction between tetrahydropyran and acetyl bromide?
Thanks