i want to know about the method. how can i perform this technique during the purification of metal complexes
Dear Bibekananda Gogoi ,
This a very easy method. Depending on the amount of product to purify, you can choose a sintered filter (porosity 4 in my case) and put a bit of your slush smoothly. With an aspiration or not, like a column, you can deposit your crude product. You rinse many times with your solvent. Another method is to put in a syringe a little piece of cotton inside, at the end and then you put a bit of your slush. You deposit your crude product with a bit of solvent and then you push like you always do with a syringe. You can add more solvent when your product is incorporated to the silica and continue to push to recover all of your compound.
Hope this could help you!
Dear Bibekananda Gogoi many thanks for asking this very interesting technical question on RG. I think that Corentin Lefebvre already provided a rather good and comprehensive answer. I might add that "filtration filtration though a short pad of silica" is like a column chromatography on silica gel but without separating different products. The purpose of the silica gel pad is just to retain / remove any dark, insoluble by-products. Depend on whether your metal complexes are air-sensitive or not, you can use either a normal glass filter frit or a Schlenk filter frit. For a great picture of the set-up please have a look at the following useful link:
https://labphoto.tumblr.com/post/88981739215/filtration-through-silica-gel-it-removes-every
Good luck with your work and best wishes, Frank Edelmann
Thanks a lot Frank T. Edelmann and Corentin Lefebvre.
The valuable guidance from both of will help me al ot
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