Herein, we proposed several mechanistic scenarios for activation of small molecules (NH3 , CO2 , CS2 , H2 , CH4 , N2 , and N2 O) by a disilicon analogue of a vinyl anion (1H) using density functional theory (DFT) calculations. The DFT results established that all the possible reactions to yield a variety of potential products have an exergonic nature except for the activation of N2 with the obtained overall energy of ΔG