Villada, Juan D.Carmona Vargas, Christian C.Alcides Ellena, JavierAyala, Alejandro P.Ramírez Pradilla, Juan S.Combariza, M. Y.Galarza, EsperanzaD'Vries, Richard FernandoChaur, Manuel N.2020-10-232020-10-232020-08-250022-4596http://repositorio.usc.edu.co/handle/20.500.12421/4534Herein we report the synthesis and structural characterization of a new Ni-bis(hydrazone) complex with the chemical formula [Ni2(L)2(Cl)2](Cl)2·2H2O (L ​= ​2-(heptylthio)-4,6-bis(2-((E)-pyridin-2-ylmethylene)hydrazineyl)pyrimidine). Suitable crystals for X-ray diffraction showed the supramolecular interactions of this complex to exhibit a helical structure coordinating two Ni2+ metal ions bounded by two 2-(heptylthio)-4,6-bis(2-((E)-pyridin-2-ylmethylene)hydrazineyl)pyrimidine ligands. In addition, exploitation of the electrochemical properties by cyclic voltammetry, for this helicate, showed catalyzing ability for the reduction of H+ to H2.enBis(hydrazones)Catalyzed hydrogen reductionNickel helicatesSupramolecular chemistryArticle