(Solved): The mass spectrum of compound A shows the molecular ion at m/z85, an M+1 peak at m/z86 of approx ...

The mass spectrum of compound A shows the molecular ion at $$m/z?85$$, an $$M+1$$ peak at $$m/z86$$ of approximately $$6\%$$ abundance relative to $$M$$, and an $$M+2$$ peak at $$m/287$$ of less than $$0.1\%$$ abundance relative to $$M$$. Assuming that compound $$A$$ has only $$C_1,H$$, and one $$N$$ atoms, determine the molecular formula, and then draw a possible structure if compound $$A$$ has an $$1R$$ absorption at $$1620?1680{\mathrm{cm}}^{?1},2$$ absorptions at $$3280?3450{\mathrm{cm}}^{?1}$$, and a $$(\mathrm{q},1\mathrm{H})$$ absorption at $$4.6?5.78$$ in the $$1\mathrm{H}?\mathrm{NMR}$$ spectrum. - You do not have to consider stereochemistry. - You do not have to explicitly draw H atoms. - If more than one structure fits the description, draw thern all. - Separate structures with + signs from th 2 drop-down menu.