Can someone please explain how many hydrogen bond acceptor/donor sites are in caffeine and where they are exactly. The conjugation of the second ring is throwing me off. Thank you!!

asked by @erinb20 • about 1 year ago • Organic Chemistry • 5 pts

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Hi there! Acceptors are any atoms with extra lone pair (N, O or F). So for this molecule we have 6 acceptors. On the other hand, a donor is any electronegative atom (N, O or F) that has an H on it. For this molecule, we don't have any donors because all of the electronegative atoms don't have any H on them. Hope that makes sense

answered by @reyn • about 1 year ago