Chemical Forums

Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: opuktun on December 17, 2008, 06:39:49 AM

Title: Reaction between PCl3 and Triethylamine
Post by: opuktun on December 17, 2008, 06:39:49 AM

I was wondering if there should be any reaction for the following:
(C₂H₅)₃N + PCl₃  :rarrow: ???

I know it sounds stupid. I observed white fumes while trying to do the addition.  :-[

Title: Re: Reaction between PCl3 and Triethylamine
Post by: sciencedancer on December 22, 2008, 02:48:21 PM

PCl₃ doesn't react with NEt₃, although it will react with primary and secondary amines:
PCl₃ + 6 RNH₂ --> P(NHR)₃ + 3 RNH₂Cl

PCl₃ is moisture-sensitive.  Even the small amount of water in the air is enough.
PCl₃ + 3 H₂0 --> H₃PO₃ + 3 HCl
The white fumes you saw were HCl - hope that helps.

Title: Re: Reaction between PCl3 and Triethylamine
Post by: Vidya on December 23, 2008, 12:26:28 AM

Hi
N and P may bond together to form phosphazines  and can catenate together to form polymers .These compounds are called as phosphonitrilic halides or poly(chlorophosphazines)

Title: Re: Reaction between PCl3 and Triethylamine
Post by: opuktun on December 24, 2008, 09:31:05 AM

Thanks for your input.

I realised what has went wrong.

Heh  :P