Revealing intermolecular hydrogen bond's important role in separation, purification of structurally similar compounds

Coal tar, once considered waste, has become a huge treasure trove because hundreds of compounds can be isolated from it. Most of these compounds tend to be aromatic hydrocarbons, polycyclic aromatic hydrocarbons, and heterocyclic compounds.

from Phys.org - latest science and technology news stories https://ift.tt/o46AHIe