Synthesis and Structural Characterization of Lead(II)-halide Complexes with Thiolate Ligands
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ORIGINAL PAPER
Synthesis and Structural Characterization of Lead(II)-halide Complexes with Thiolate Ligands Jing-Long Liu1 • Feng Hu1 • Ming-Ming Sheng1 • Ai-Quan Jia1 • Qian-Feng Zhang1 Received: 12 May 2020 Ó Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Treatment of [Pb(l-SiPr)2]n with half equivalent of AgX (X = Cl, Br, I) in DMF afforded three new two-dimensional polymeric complexes {[Pb2(l-SiPr)3]Cl}n (1), {[Pb2(l-SiPr)3]Br}n (2) and [Pb2(l-SiPr)3(l-I)]n (3), while reaction of [Pb(lSiPr)2]n and equal equivalent of AgI gave a one-dimensional chain polymeric complex [Pb2(l-I)2(l-SiPr)2]n (4) with the Pb–(l-I)2–Pb links. Interaction of 4 and two equivalents of NaS2CNMe2 afforded a bi-nuclear lead(II)-iodine complex [Pb(l-I)(S2CNMe2)]2 (5) with chelated dimethyldithiocarbamate ligands. The structures of five lead(II)-halide complexes 1–5 with thiolate ligands were established by single-crystal X-ray crystallography. Graphic Abstract Two-dimensional polymeric complexes {[Pb2(l-SiPr)3]Cl}n and {[Pb2(l-SiPr)3]Br}n with the weak halogen bonds by balance halogen atoms (Cl, Br), a two-dimensional polymeric complex [Pb2(l-SiPr)3(l-I)]n with the Pb-I-Pb links, a onedimensional chain polymer [Pb2(l-I)2(l-SiPr)2]n with the planar four-membered [Pb(l-I)2Pb] and [Pb(l-S)2Pb] rings, and a binuclear lead(II) complex [Pb(l-I)(S2CNMe2)]2 with chelated dimethyldithiocarbamate ligands were reported.
Keywords Polymeric complex Lead(II) complex Lead(II)-halide complex Lead(II)-thiolate complex Crystal structure
Introduction Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10876-020-01872-x) contains supplementary material, which is available to authorized users. & Qian-Feng Zhang [email protected]; [email protected] 1
Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma’anshan 243002, Anhui, People’s Republic of China
An increasingly great attention has been paid to design of coordination complexes not only because of their materials is driven by their intrinsic architectural beauty but also aesthetically pleasing structures and potential applications in decades [1–4]. Particularly noteworthy are a series of lead(II)-sulfur complexes [5–7], more specifically, lead(II) with a lone pair and empty p-orbitals has attracted much attention due to its potentially extensive array of
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coordination geometries [8–10]. Lead(II) chalcogenide nanocrystals have been shown unique properties [11–13], of which lead(II) sulfide (PbS) is an important IV/VI semiconductor, with a narrow band gap of 0.37 eV and large exciton Bohr radius (18 nm), resulting in applications in optoelectronic devices such as solar cells [14], lightemitting diodes [15], photodetectors [16, 17], and sensors [18]. As a matter of the fact, syntheses and structures of lead(II)-thiolate complexes with extended bonding in multiple dimensions have been shown to be potentially tunable s
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