No, sorry. I don't remember where I first read about this, but it was a story about a perfume manufacturer successfully using IR gas chromatography to synthetic

No, sorry. I don't remember where I first read about this, but it was a story about a perfume manufacturer successfully using IR gas chromatography to synthetically recreate an expensive perfume component (or something like that), where other techniques had failed. I don't know if there has been any subsequent research publications that definitively demonstrate what's going on. It's possible that shape matters, too, as it does for other receptors. Either way, quantum mechanics is still critical for understanding the mechanism.