Two new [Ni(tren)2]2+ complexes: [Ni(tren)2]Cl2 and [Ni(tren)2]WS4 |
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Authors: | Jan Ellermeier,Ralph St hler,Wolfgang Bensch |
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Affiliation: | Jan Ellermeier,Ralph Stähler,Wolfgang Bensch |
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Abstract: | Both title compounds, bis[tris(2‐aminoethyl)amine]nickel(II) dichloride, [Ni(tren)2]Cl2, (I), and bis[tris(2‐aminoethyl)amine]nickel(II) tetrathiotungstate, [Ni(tren)2]WS4, (II), contain the [Ni(tren)2]2+ cation [tren is tris(2‐aminoethyl)amine, C6H18N4]. The tren molecule acts as a tridentate ligand around the central Ni atom, with the remaining primary amine group not bound to the central atom. In (I), Ni2+ is located on a centre of inversion surrounded by one crystallographically independent tren molecule. In the [Ni(tren)2]2+ cation of (II), the Ni atom is bound to two crystallographically independent tren molecules. The Ni atoms in the [Ni(tren)2]2+ complexes are in a distorted octahedral environment consisting of six N atoms from the chelating tren molecules. The counter‐ions are chloride anions in (I) and the tetrahedral [WS4]2? anion in (II). Hydrogen bonding is observed in both compounds. |
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