Room-Temperature Synthesis of Three Compounds Featuring the [Ge4 S10 ]4- Anion from a Water-Soluble Thiogermanate Precursor

Danker, Felix, Näther, Christian, Pielnhofer, Florian and Bensch, Wolfgang (2017) Room-Temperature Synthesis of Three Compounds Featuring the [Ge4 S10 ]4- Anion from a Water-Soluble Thiogermanate Precursor European Journal of Inorganic Chemistry, 2017 (37). pp. 4317-4323. DOI 10.1002/ejic.201700795.

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Abstract

Applying a new synthetic approach in which transition metal complexes and a thiogermanate source are in different liquid phases resulted in crystallization of three new compounds with the adamantane-like [Ge4S10]4– anion at room temperature. In the crystal structure of [Ni(cyclam)]3[Ni(cyclam)(H2O)2][Ge4S10]2·21H2O (I, cyclam = 1,4,8,11-tetraazacyclotetradecane), the two different Ni2+-centered complexes and two unique [Ge4S10]4– anions are joined by H-bonding interactions with a water cluster composed of condensed pentameric and hexameric rings. The compound {[Mn(2,2′-bipy)2(H2O)]2Ge4S10}·3H2O (II, bipy = bipyridine) also contains the [Ge4S10]4– anion, which is expanded by two Mn2+-centered complexes through Mn–S–Ge bonds. The aqua ligand of the Mn2+-centered complex is involved in O–H···S H-bonding to a terminal S atom of the anion with formation of a chain of {[Mn(2,2′-bipy)2(H2O)]2Ge4S10} molecules. In the structure of [Fe(2,2′-bipy)3]2[Ge4S10]·10H2O (III), the [Fe(2,2′-bipy)3]2+ complexes are arranged to form channels that host the thiogermanate anions. Between the 2,2′-bipy ligands of the complexes π–π interactions are observed. The water molecules of crystallization form two different types of water clusters.

Document Type: Article
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
DOI etc.: 10.1002/ejic.201700795
ISSN: 14341948
Date Deposited: 16 Jan 2018 15:50
Last Modified: 16 Jan 2018 15:50
URI: http://eprints.uni-kiel.de/id/eprint/41524

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