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Updated: Jun 29, 2026

Calcium Carbonate Formation in the Presence of Biopolymeric Additives
Published on: May 14, 2019
Formation of a carbon-carbon triple bond by coupling reactions in aqueous solution
Avi Bino1, Michael Ardon, Elijah Shirman
1Department of Inorganic and Analytical Chemistry, Hebrew University of Jerusalem, 91904 Jerusalem, Israel. bino@vms.huji.ac.il
Abstract:
Formation of a carbon-carbon triple bond by coupling reactions usually takes place at high temperatures, in anhydrous media and anaerobic conditions. We describe the formation of a carbon-carbon triple bond at room temperature in an aqueous solution exposed to the atmosphere. Two ethylidyne ligands of a trimolybdenum cluster coupled spontaneously to form 2-butyne. This unexpected result demonstrates the plausibility of alkylidyne chain lengthening and metathesis processes under ambient, environmentally friendly conditions.
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