Abstract
3a,6a-Diaza-1,4-diphosphapentalene (DDP) with indium triiodide forms the [In(DDP)I3] complex (I) with the ratio In : DDP = 1 : 1. The DDP ligand reacts with antimony(III) chloride to form a coordination polymer, the treatment of which with pyridine in the presence of pyridine hydrochloride affords the [PyH]+[Sb(DDP)Cl4)]– complex (II) (CIF files CCDC nos. 1937822 (I) and 1937823 (II)). The metal is coordinated to the phosphorus atom at an angle to the plane of the heteropentalene cycle (101.9(1)° and 106.0(1)° for In and Sb, respectively). This indicates that the coordination occurs due to electrons of the heteroaromatic π system.
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This work was supported by the Russian Science Foundation, project no. 19-13-00400.
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Translated by E. Yablonskaya
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Kornev, A.N., Panova, Y.S., Sushev, V.V. et al. 3a,6a-Diaza-1,4-Diphosphapentalene Complexes with Lewis Acids InI3 and SbCl3. Russ J Coord Chem 46, 98–104 (2020). https://doi.org/10.1134/S1070328420020050
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DOI: https://doi.org/10.1134/S1070328420020050