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The First Aqua Pentafluoro Manganates(III) – Syntheses and Structures

✍ Scribed by G. Rother; H. Worzala †; U. Bentrup

Publisher
John Wiley and Sons
Year
1998
Tongue
German
Weight
185 KB
Volume
624
Category
Article
ISSN
0372-7874

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✦ Synopsis

For the first time aqua pentafluoro manganate(III) compounds with different organic N-cations have been prepared and their crystal structures have been determined: N,N'-DMenH 2 [MnF 5 (H 2 O)] ´H2 O 1 (N,N'-DMen = N,N'-Dimethylethylenediamine), space group P2 1 /c, a = 916.0, b = 1004.8, c = 1247.9 pm, b = 106.03°, R = 0.035; NMpipzH 2 [MnF 5 (H 2 O)] ´H2 O 2 (NMpipz = N-Methylpiperazine), space group P2 1 /n, a = 757.7, b = 1261.9, c = 1197.1 pm, b = 105.09°, R = 0.027; N,N'-DMpipzH 2 [MnF 5 (H 2 O)] ´2 HF 3 (N,N'-DMpipz = N,N'-Dimethylpiperazine), space group P1, a = 677.1, b = 863.9, c = 1187.7 pm, α = 79.18°, b = 81.63°c = 67.62°, R = 0.026; and N,N-DMenH 2 [MnF 5 (H 2 O)] 1/2 HF 4 (N,N-DMen = N,N-Dimethylethylenediamine), space group P1, a = 859.3, b = 1086.5, c = 1092.0 pm, α = 86.96°, b = 78.52°c = 89.01°, R = 0.035. In all compounds the [MnF 5 (H 2 O)] 2± octahedra are connected via H-bonds forming 3 D and 2 D network arrangements. The anions are strongly elongated by the Jahn-Teller effect. The FTIR spectra are presented.

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