Journal article

Authors list: Ritz, FJ; Valentin, L; Henss, A; Würtele, C; Walter, O; Kozhushkov, SI; de Meijere, A; Schindler, S

Publication year: 2021

Pages: 1864-1870

Journal: European Journal of Organic Chemistry

Volume number: 2021

Issue number: 12

ISSN: 1434-193X

eISSN: 1099-0690

Open access status: Hybrid

DOI Link: https://doi.org/10.1002/ejoc.202100045

Publisher: Wiley

Abstract: 
The kinetics of the reactions between [Ni(bipy)(COD)] and bicyclopropylidene (bcp), dicyclopropylacetylene (dcpa) and 1,4-dimethoxy-2-butyne (dmbu) were investigated using stopped-flow techniques. Similar to previous studies the results support an associative mechanism (activation parameters for bcp: Delta H-#=46 +/- 2 kJ . mol(-1) and Delta S-#=-69 +/- 8 J . mol(-1) . K-1) and therefore allowed to postulate a more general reaction mechanism for the reaction pathway. The products, the nickel(0) complexes [Ni(bipy)(bcp)] and [Ni(bipy)(dcpa)], could be structurally characterized and the molecular structures are presented. In addition, the corresponding copper(I) complexes [Cu(bipy)(bcp)]PF6 and [Cu(bipy)(dcpa)]PF6 were also structurally characterized and their reactivity towards dioxygen was investigated. A detailed discussion of the structural properties and comparisons to similar literature-known olefinic complexes with transition metals are presented.

Harvard Citation style: Ritz, F., Valentin, L., Henss, A., Würtele, C., Walter, O., Kozhushkov, S., et al. (2021) Syntheses, Structural Characterization, and Kinetic Investigations of Metalla[3]triangulanes: Isoelectronic Nickel(0) and Copper(I) Complexes with Bicyclopropylidene (bcp) and Dicyclopropylacetylene (dcpa) as Ligands, European Journal of Organic Chemistry, 2021(12), pp. 1864-1870. https://doi.org/10.1002/ejoc.202100045

APA Citation style: Ritz, F., Valentin, L., Henss, A., Würtele, C., Walter, O., Kozhushkov, S., de Meijere, A., & Schindler, S. (2021). Syntheses, Structural Characterization, and Kinetic Investigations of Metalla[3]triangulanes: Isoelectronic Nickel(0) and Copper(I) Complexes with Bicyclopropylidene (bcp) and Dicyclopropylacetylene (dcpa) as Ligands. European Journal of Organic Chemistry. 2021(12), 1864-1870. https://doi.org/10.1002/ejoc.202100045