[humanlike]

Hi there,

I have the following chemical reaction (I hope the formulas are correct)

• DOPO+VTES => DOPO-VTES
• DOPO-VTES + Graphene-Oxide => GO@DOPO-VTES.

Unfotunately, I cannot interpretate the FTIR spectra. There are peaks at wavenumber 3000 and 2400, but I dont know how to explain them.

In my opinition, during the reaction with DOPO and VTES, the P-H bonds are replaced by P-C bonds. I have found a lot of tables with IR-spectras, but I cannot find these bonds. And I cannot find an interpretation for my results.
I found some papers dealing with the same synthsis, but they have another IR-spectra for DOPO (the peaks are totally different). I compared mine with a database and the database approved my results.

[mjc123]

Are you sure you've labelled your spectra correctly? The red one looks as if it could be DOPO - the 2400 cm^-1 band is P-H, 3000 is aromatic C-H. The blue one could be VTES (or DOPO-VTES?) - you've got aliphatic C-H bands at 2900-3000, and what could be Si-O-C at ca. 1050. Both have O-H bands, so may be either wet or partially hydrolysed. Careful with your formulas too - there is no Si-H, and where's the extra carbon come from in DOPO-VTES?