Synthesis and Reactivity of an Early‐Transition‐Metal Alkynyl Cubane Mn4C4 Cluster. Issue 11 (14th February 2019)

• Record Type: Journal Article
• Authors: Chakraborty, Uttam; Demeshko, Serhiy; Meyer, Franc; Jacobi von Wangelin, Axel
• Is Part Of: Angewandte Chemie international edition. Volume 58:Issue 11(2019)
• Page Start: 3466
• Page End: 3470
• Publication Date: 2019-02-14
• Subjects: alkynes -- cubanes -- cyclotrimerization -- hydrogenation -- manganese; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201812529
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: While the coordination chemistry of monometallic complexes and the surface properties of extended metal particles are well understood, the control of metal nanocluster formation has remained challenging. The isolation of discrete metal clusters provides an especially rare snapshot at the nanoscale of cluster growth. The synthesis and full characterization of the first early‐transition‐metal alkynyl cubane and the first μ 3 ‐alkynyl Mn3 motif are reported. Abstract : Early days : The first noncoinage‐metal alkynyl M4 C4 cubane has been prepared and characterized (see structure). The nanocluster contains two sets of Mn II environments, which exhibit strong antiferromagnetic coupling. Facile amido ligand exchange and the formation of Mn nanoparticles were evaluated in catalytic studies.