Dime¬ri-zation energies as an important factor of carbene stability. II. N,N′-di¬sub¬sti¬tuted azolylidenes and systems with increased electron donating ability - M. Korotkikh; H. Raienko; V. Sabierov; V. Yenia; N. Hlyniana; M. Nechytailov; O. Shvaika (Proceedings of the Shevchenko Scientific Society : Shemical Sciences, 2019)