Hilbert, Jessica, Näther, Christian and Bensch, Wolfgang (2017) Applying Ni(II) Amine Complexes and Sodium Thiostannate as Educts for the Generation of Thiostannates at Room Temperature. Crystal Growth & Design, 17 (9). pp. 4766-4775. DOI 10.1021/acs.cgd.7b00728.

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Abstract

A new versatile and fast room temperature synthesis route was developed in which Na4SnS4·14H2O and selected Ni(II)amine complexes (amine = ethylenediamine (en), 1,2-diaminocyclohexane (1,2-dach), 1,2-diaminopropane (1,2-dap), 2-(aminomethyl)pyridine (2amp)) were reacted in aqueous tren (tren = tris(2-aminoethyl)amine) solutions affording crystallization of six new compounds. During the reaction heteroleptic Ni2+ centered complexes are formed in situ by replacement of two bidentate ligands by the tetradentate tren molecule. The compounds poorer in water of the pseudopolymorphs of [Ni(tren)(en)]2[Sn2S6]·xH2O (x = 2 (1) and 6 (2)) and [Ni(tren)(1,2-dach)]2[Sn2S6]·xH2O (x = 3 (3) and 4 (4)) are formed after a very short reaction time of 1 day. Remarkably, keeping the reaction slurries at room temperature for 7 days the thermodynamically stable water richer compounds were obtained. The remaining compounds, [Ni(tren)(1,2-dap)]2[Sn2S6]·4H2O (5) and [Ni(tren)(2amp)]2[Sn2S6]·10H2O (6), crystallized between 1 and 7 days. The water of crystallization molecules in all compounds are involved in extended hydrogen bonding interactions significantly affecting the packing of cations and anions. Hirshfeld surfaces analyses give a detailed picture of intermolecular interactions which lead to the different packing motifs in the crystal structures.

Document Type:	Article
Research affiliation:	Kiel University Kiel University > Kiel Marine Science OceanRep > The Future Ocean - Cluster of Excellence
Refereed:	Yes
Open Access Journal?:	Yes
Publisher:	American Chemical Society
Projects:	Future Ocean
Date Deposited:	16 Jan 2018 15:45
Last Modified:	23 Sep 2019 22:30
URI:	https://oceanrep.geomar.de/id/eprint/41521

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