So, I've been reading in my book, online, and watching videos, and I've gotten very close to figuring this problem out but I'm having trouble getting the final structure(s). I've determined the correct chemical formula for the compound, given the information below; C5H11N I know the IR spectra info is supposed to be used to help determine the structure of the compound but I can't seem to figure it out. I think maybe the nitrogen may be surrounded by three carbons, because it says there are no IR peaks in the 3000 area where one would expect to see an N-H stretching. If someone could please give an explanation it would be greatly appreciated.
The mass spectrum of compound A shows the molecular ion at m/z 85, an M + 1 peak at m/z 86 of approximately 6% abundance relative to M, and an M + 2 peak at m/z 87 of less than 0.1% abundance relative to M.
Assuming that compound A has only C, H, and one N atoms, determine the molecular formula, and then draw a possible structure if compound A has IR absorption at 1620-1680 cm-1 but not at 3010-3090 cm-1 .
If more than one structure satisfies the given information, draw them all.
Specific stereochemistry not required.