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Aryl Germanes as Ligands for transition Polymetallic Complexes: Synthesis, Structure, and Properties

Aryl Germanes as Ligands for transition Polymetallic Complexes: Synthesis, Structure, and Properties

Zaitsev, Kirill V, Lam, Kevin ORCID: 0000-0003-1481-9212, Poleshchuk, Oleg Kh., Bezzubov, Stanislav I. and Churakov, Andrei V. (2019) Aryl Germanes as Ligands for transition Polymetallic Complexes: Synthesis, Structure, and Properties. European Journal of Inorganic Chemistry, 2019 (22). pp. 2750-2760. ISSN 1434-1948 (Print), 1099-0682 (Online) (doi:https://doi.org/10.1002/ejic.201900316)

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Abstract

A series of new carbonyl dichromium complexes bearing aryl germanes as ligands were prepared using improved approaches. The thermal reaction of Cr(CO)6 (1) with Me3GeGePh3 (3) led to the formation of Me3GeGePh[(η6‐C6H5)Cr(CO)3]2 (3a). The lithiation of [(η6‐C6H6)Cr(CO)3] (2) with nBuLi followed by the addition of Me2GeCl2 (4) or ClGeMe2GeMe2Cl (5) gave Me2Ge[(η6‐C6H5)Cr(CO)3]2 (4a) and [(OC)3Cr(η6‐C6H5)]GeMe2GeMe2[(η6‐C6H5)Cr(CO)3] (5a), respectively. The molecular structures of 3a and 4a, in their crystal forms, were studied by X‐ray diffraction analysis. The crystals of oligogermane 3a have shown to undergo a fully reversible phase transition at 160 K without any sign of decomposition. The complexes synthesized were also studied by multinuclear NMR, IR and UV/Vis spectroscopy, DFT calculations and electrochemistry. The presence of a Cr(CO)3 group in a range of oligogermanes has shown to impact on the physical and chemical properties of the compounds.

Item Type: Article
Uncontrolled Keywords: Germanium, Electrochemistry, organometallics, ligand
Subjects: Q Science > QD Chemistry
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Pharmaceutical, Chemical & Environmental Sciences
Last Modified: 01 Jul 2019 11:15
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/24488

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