Zum Nachweis der Pikrins?ure im Bier

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Zur Untersuchung von Fleischbrei u. s. W. auf Aetzalkalien

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Eine neue Reaction des Cocainum hydrochloricum

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Zur Lehre von der Arsenvergiftung

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Koniinreaktionen nach Vitali und Stroppa

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Farbenreactionen des Morphins, Code?ns und Atropins

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Reduction of copper (II) chloride by molybdenum and rhenium biscyclopentadienyl hydrides. Investigation of the crystal and molecular structure of [(η5-C5H5)2Re]+[CuCl2]−

The reduction of copper (II) chloride by molybdenum and rhenium biscyclopentadienyl hydrides upon their interaction in donor-type solvents has been studied by NMR, X-ray diffraction, and magnetic methods. It is established that the ionic complex [(η⁵-C₅H₅)₂Re]⁺[CuCl₂]^? forms ortho rhombic crystals with a - 13.696(2) Å, b = 7.317(1) Å, c = 5.969(1) Å, space group Pm2₁n, Z = 2. The cyclopentadienyl rings make a bent-sandwich with an angle between the ring centres and Re atom of 150.1°; the ClCuCl angle being 174.8° and the ReCu minimum distance 4.346(29) Å. The solution of [(η⁵-C⁵H₅)²Re]⁺ [CuCl₂]^? seems to activate the CH bond of the C₅H₅ rings, which results in the addition of the [(C₅H₅)(C₅H₄)ReH]⁺ hydride ion.     

Dependence of glow discharge Si:H:Cl film morphology on diluent gas and SiCl4 partial pressure

TEM, THEED and field-assisted silver ion exchange have been employed to study the glow discharge (GD) SiHCl films deposited from SiH₄-SiCl₄ gas mixtures. The character of the THEED patterns shows that the films are rather amorphous, and that their structure does not alter with the change in the gas mixture. The honeycomb-like morphology of the films is strongly affected by the type of gas in which SiH₄ is diluted (Ar or H₂). An increase in the SiCl₄ partial pressure leads to the uniformity and to the decrease of the island dimension only for the films deposited from SiH₄(H₂)-SiCl₄. A possible correlation between the film morphology and the micropore density is proposed.