Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: How to make chromium ethoxide?
Admagistr
Hazard to Others
***




Posts: 361
Registered: 4-11-2021
Location: Central Europe
Member Is Offline

Mood: The dreaming alchemist

[*] posted on 30-12-2022 at 03:24
How to make chromium ethoxide?


I am beginning to discover the magic of organometallic compounds and the CVD method,but I have hardly been involved in organic chemistry so far.According to Google,aluminium ethoxide is relatively easy to produce by reacting aluminium with anhydrous ethanol in the presence of gallium,from an aluminium-gallium alloy.I just can't think how to produce its chromium analogue?I have searched the internet,but I haven't found any specific advice.Is there any easy way to do this?Thanks.
View user's profile View All Posts By User
Bedlasky
International Hazard
*****




Posts: 1236
Registered: 15-4-2019
Location: Period 5, group 6
Member Is Offline

Mood: Volatile

[*] posted on 30-12-2022 at 09:29


Not an organic chemistry expert, but I doubt that Cr ethoxide would be possible to make. Al is way more reactive than Cr. And how do you want to remove oxide layer from Cr?

[Edited on 30-12-2022 by Bedlasky]
View user's profile View All Posts By User
Tsjerk
International Hazard
*****




Posts: 3032
Registered: 20-4-2005
Location: Netherlands
Member Is Offline

Mood: Mood

[*] posted on 30-12-2022 at 10:40


Maybe if you can get CrH2 to react with ethanol. But CrH2 tends to polymerize, so it might be unreactive like CuH2

[Edited on 30-12-2022 by Tsjerk]
View user's profile View All Posts By User
Admagistr
Hazard to Others
***




Posts: 361
Registered: 4-11-2021
Location: Central Europe
Member Is Offline

Mood: The dreaming alchemist

[*] posted on 30-12-2022 at 11:16


Quote: Originally posted by Bedlasky  
Not an organic chemistry expert, but I doubt that Cr ethoxide would be possible to make. Al is way more reactive than Cr. And how do you want to remove oxide layer from Cr?

[Edited on 30-12-2022 by Bedlasky]


It was clear to me that you can't use the same reaction as with aluminum, for this very reason, otherwise I wouldn't have asked and do tried it:-)I read that chromium ethoxide is used as a precursor to other advanced chemical syntheses in organic chemistry.So there must be some way to synthesize it...I'm sure someone in our community will know, there are undoubtedly some great organic chemists among us;-)
View user's profile View All Posts By User
Sigmatropic
Hazard to Others
***




Posts: 307
Registered: 29-1-2017
Member Is Offline

Mood: No Mood

[*] posted on 30-12-2022 at 13:22


'photolysis of ammonium chromate in the resp. Alcohol '



Attachment: brown1968.pdf (695kB)
This file has been downloaded 177 times

View user's profile View All Posts By User
Admagistr
Hazard to Others
***




Posts: 361
Registered: 4-11-2021
Location: Central Europe
Member Is Offline

Mood: The dreaming alchemist

[*] posted on 30-12-2022 at 14:30


Quote: Originally posted by Sigmatropic  
'photolysis of ammonium chromate in the resp. Alcohol '



Great! Thank you very much!
View user's profile View All Posts By User

  Go To Top