1,2,3-Triazolylidenes have drawn considerable attention in recent years,which are due to their enhanced σ-donor properties and ease of preparation on a large scale.
Homonuclear d-or s-block metal-metal bonded compounds with unusual low oxidation states have emerged over the last two decades and opened up new frontiers of chemical bonds.
Heterometallic clusters are important in catalysis and small molecule activation because of the multimetallic synergistic effects from different metals.
Aromaticity is a fundamental concept with ever-increasing diversities in chemistry.According to Hückels and Bairds rules, cyclic conjugated species with 4n+2 π-electrons are aromatic in the singlet el