английский => русский Техника Химия; химические науки и технологии

As used herein, the term “heteroaryl” means a mono-, bi-, tri- or polycyclic group having 5 to 14 ring atoms, alternatively 5, 6, 9, or 10 ring atoms; having 6, 10, or 14 pi electrons ***shared in a cyclic array***; wherein at least one ring in the system is aromatic, and at least one ring in the system contains one or more heteroatoms independently selected from the group consisting of N, O, and S.