| 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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| 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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| default:Reihe_B/33/ZNB-1978-33b-1296.pdf | | | Identifier
| ZNB-1978-33b-1296 | | | Volume
| 33 | |
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