ZfN: Search Results

1	Author	M. A. Nabar, A. P. Dalvi	Requires cookie*
	Title	Thermal Analysis of the Cadmium and Manganese Hydrogen Orthoarsenate Monohydrates (M HAs04 * H20, where M = Cd, Mn)
	Abstract	The dehydration decomposition of cadmium and manganese hydrogen orthoarsenate monohydrates was studied by static isothermal and differential thermoanalytical methods. It was found that the dehydration decomposition takes place in a single stage forming the respective diarsenate, the peak minimum temperature being 458 K for the cadmium and 466 K for the manganese salt.
	Reference	Z. Naturforsch. 33b, 1106—1 (1978); received April 17 1978
	Published	1978
	Keywords	Thermal Analysis, Cadmium, Manganese
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-1106.pdf
	Identifier	ZNB-1978-33b-1106
	Volume	33

2	Author	Albrecht Mewis	Requires cookie*
	Title	AB2X2-Verbindungen im CaAl2Si2-Typ, V [1] Zur Struktur der Verbindungen CaMn2P2, CaM^As*, SrMn2P2 und SrMn2As2
	Abstract	Four ternary compounds with the formulas CaMn2P2, CaMn2As2, SrMn2P2, and SrMn2As2 have been prepared and investigated by X-ray methods. They are isotypic and crystallize trigonally in a CaAl2Si2-type structure (space group P 3 m 1-D3d) with the lattice constants:
	Reference	Z. Naturforsch. 33b, 606—609 (1978); eingegangen am 20. März 1978
	Published	1978
	Keywords	Strontium Compounds, Calcium Compounds, Manganese, Phosphides, Arsenides
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0606.pdf
	Identifier	ZNB-1978-33b-0606
	Volume	33

3	Author	Ekkehard Lindner, Günter Von Au, Hans-Jürgen Eberle	Requires cookie*
	Title	Darstellung und Eigenschaften von und Reaktionen mit metallhaltigen Heterocyclen, I Metallorganische Komplexe von Mangan und Rhenium mit zwei funktionellen Zentren Preparation and Properties of and Reactions with Organometallic Heterocycles, I Organometallic Complexes of Manganese and Rhenium with two Functional Centres
	Abstract	The binuclear anions Na2[(0C)4MP(0)R2]2 (2a, a', b, b') [M = Mn: R = CH3 (a), C6H5 (a'); M = Re: R = CH3 (b), CßHs (b')] can be obtained quantitatively by reduction of the phosphinic acid complexes (OC)4BrMP(OH)R2 (la, a', b, b') with sodium amalgam in ether. While the manganate anions 2 a, a' can be transformed with excess sodium into the mononuclear salts Na2[(0C)4MnP(0)R2] (3 a, a'), with two nucleophilic centres, the corresponding anions 2 b, b' eliminate CO to give sparingly soluble species. From 3 a, a' and dimethylsulphate the doubly methylated compounds CH3Mn(CO)4P(OCH3)R2 (4a, a') are obtained. The rhenium derivatives CH3Re(CO)4P(OCH3)R2 (4b, b') are formed only in very poor yields from 2 b, b' and dimethylsulphate under reductive conditions. The IR, *H NMR, and mass spectra are discussed.
	Reference	Z. Naturforsch. 33b, 1296—300 (1978); eingegangen am 29. Juni 1978
	Published	1978
	Keywords	Carbonyl Phosphinito Anions, Manganese, Rhenium, Functional Centres, IR
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-1296.pdf
	Identifier	ZNB-1978-33b-1296
	Volume	33