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Chemistry |
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Authors: Sven Harms, Roberto Köferstein, Helmar Görls, Christian Robl
Colourless single crystals of Cd2[µ8-MTB]*3H2O*DMF (1) were prepared in DMF/H2O solution. 1: Space group C2/c (no. 15) with a = 1821.30(6), b = 2175.08(6), c = 1269.87(4) pm, beta = 129.684(1)°. The connection between the methane-p-benzoate tetraanions (MTB4-) and the Cd2+ cations leads to a three-dimensional framework with channels extending along [1-10] and [110] with openings of 670 pm x 360 pm. The channel-like voids accommodate water molecules and N,N-dimethylformamide (DMF) molecules not bound to Cd2+. Colourless single crystals of [Cd4(2,2'-bipy)4(µ7-MTB)2]*7DMF (2) were prepared in DMF in the presence of 2,2'-bipyridine. 2: Space group P-1 (no. 2) with a = 1224.84(4), b = 1418.85(5), c = 2033.49(4) pm, alpha = 85.831(2)°, beta = 88.351(2)°, gamma = 68.261(1)°. The coordination of MTB4- to Cd2+ results in infinite layers parallel to (001). The layers, not connected by any hydrogen bonds, contain small openings of about 320 pm x 340 pm.
Comments: 13 Pages. The paper was published in: Z. Anorg. Allg. Chem. 645 (2019) 912—918. (DOI: 10.1002/zaac.201900089)
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