What is the elemental composition of Para Nitrotoulene? My boiling point is 53 C

Question

What is the elemental composition of Para Nitrotoulene? My boiling point is 53 Celsius, I do not know the density

Plesse help!!!! I have no idea what to do. I have provided all of my processed spectras for my compound.

These are the instructions that were given:

the molecular formula index of some catalogs, especially Aldrich and Fluka, for a listing of all compounds sold by that company with the molecular formula of your unknown. You should be able to eliminate at least three of the possibilities presented as inconsistent with observed physical properties (boiling point, melting point, density), chemical properties (solubility in acids and bases, derivatives), or spectral properties(ir, pmr, cmr). Make direct comparisons of unknown and rejected isomer data. Use prose to explain why the isomers are rejected. The statement “This compound is rejected because its pmr spectrum does not match that of the unknown.” must be followed by a statement of why the spectra are different. That statement must refer to expected number of signals, expected integrations, multiplicity, or expected DEPT-135 response.

Explanation / Answer

visit:

http://monographs.iarc.fr/ENG/Monographs/vol65/mono65-12.pdf

From given NMR data:

1HNMR: Only two doublets for 2Hs each, in aromatic region (total 4Hs), showing the di-substituted aromatic ring and both substitutions are para to each other.

13CNMR: Number of reduced signals (only 4) further indicating the symmertical substitution in the aromatic ring (para to each other).

So, the compound is Para Nitrotoulene.

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