[Pb{Mn(CO)5}3][AlCl4]: a lead-manganese carbonyl with AlCl4-linked PbMn3 clusters. Issue 14 (21st March 2019)

• Record Type: Journal Article
• Authors: Wolf, Silke; Fenske, Dieter; Klopper, Wim; Feldmann, Claus
• Is Part Of: Dalton transactions. Volume 48:Issue 14(2019)
• Page Start: 4696
• Page End: 4701
• Publication Date: 2019-03-21
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c9dt00309f
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A trigonal planar Pb(+I)Mn3 cluster is observed in the carbonyl compound [Pb{Mn(CO)5 }3 ][AlCl4 ] that was prepared by ionic-liquid-based synthesis. Abstract : [Pb{Mn(CO)5 }3 ][AlCl4 ] containing a trigonal planar PbMn3 cluster was obtained by the reaction of PbCl2 and Mn2 (CO)10 in the ionic liquid [BMIm][AlCl4 ]. The title compound is composed of [Pb{Mn(CO)5 }3 ] + carbonyl cations and [AlCl4 ] − anions that are connected to infinite zig-zag chains. The [Pb{Mn(CO)5 }3 ] + cation exhibits a central PbMn3 cluster with three equal Pb–Mn single bonds, resulting in an almost equilateral triangle of three manganese atoms with a formal Pb +I in its center. Such a cluster and compound were identified for the first time. In addition to single-crystal structure analysis, the composition, structure and properties were further characterized by density functional theory (DFT) calculations, energy dispersive X-ray spectroscopy (EDXS), and Fourier-transform infrared spectroscopy (FT-IR), as well as optical spectroscopy (UV-Vis).