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- W2903963493 abstract "Homoleptic polycyanido-complexes of 5d metal ions with high coordination numbers (C.N.), 8 for [W(CN)8]3–, 7 for [Re(CN)7]3–, and 6 for [Pt(CN)6]2–, are found to form supramolecular anion-π chains with the multisite anion receptor HAT(CN)6 (hexaazatriphenylenehexacarbonitrile). The chains adopt a zigzag topology in the case of (XPh4)3[W(CN)8]·HAT(CN)6 (X = P: 1, X = As: 2) and (PPh4)3[Re(CN)7]·HAT(CN)6 (3), and a linear arrangement in the case of (PPh4)2[Pt(CN)6]·HAT(CN)6·0.5CH3CN·2Et2O (4). The anion-π interactions consist of 3-fold {M–C≡N–···δ+centroidpyrazine,ring}3 or single {M–C≡N–···δ+centroidpyrazine,C–C bond} intermolecular contacts with separation distances in the range of 2.79–3.20 A. An M-(CN)− → HAT(CN)6 charge transfer (CT) along these anion-π contacts is evidenced in the solid state by the appearance of new absorptions in the visible range of UV–vis electronic absorption spectra, as compared to the starting materials, and by dispersion-corrected density functional theory studies. The CT anio..." @default.
- W2903963493 created "2018-12-22" @default.
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- W2903963493 date "2018-12-10" @default.
- W2903963493 modified "2023-10-18" @default.
- W2903963493 title "Anion-π Architectures of HAT(CN)<sub>6</sub> and 5d Polycyanidometalates: [W(CN)<sub>8</sub>]<sup>3–</sup>, [Re(CN)<sub>7</sub>]<sup>3–</sup>, and [Pt(CN)<sub>6</sub>]<sup>2–</sup>" @default.
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- W2903963493 doi "https://doi.org/10.1021/acs.cgd.8b01653" @default.
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