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Chemistry Forums for Students => Organic Chemistry Forum => Organic Spectroscopy => Topic started by: Sona on April 08, 2017, 06:25:14 AM

Title: How to know the degree of brancing from IR data
Post by: Sona on April 08, 2017, 06:25:14 AM
From the IR data, I've attached here, it is clear that it is a monosubstituted benzene. Now in the side chain what may present? isopropyl or normal propyl? Can it be said from this Ir data?
Title: Re: How to know the degree of brancing from IR data
Post by: wildfyr on April 09, 2017, 12:53:03 PM
You can tell if specifically isopropyl is there, but other chains are tough to ID. The isopropyl split 1370 + 1385 is pretty characteristic. Some easy googling can tell you other alkane peaks, but they are not easy to interpret in my experience