Two important questions about organic chemistry?

Casanova

New member
1) Why do IR graphs always look so messy? For example, according to literature, alkyne C---C peaks occur in the range between 2100-2260. But sometimes I get several peaks all of the same intensity within the range. How do I know which peak is the one? Does the number of bond stretches in a molecule always correspond to the same number of peaks?

2) I'm only starting out learning about organic synthesis, but I know the some molecules such as synthetic drugs contain very complex structures, with many different bond interactions and functional groups. In theory then, could any conceivable molecule be synthesized? For example, could a molecule with fifty aromatic rings be made as long as it is compatible with bonding principles?
 
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