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Zusammenfassung Dimethyltriazaniumnitrat,-perchlorat,-methylsulfonat,-toluolsulfonat,-bromid und-jodid wurden aus Dimethyltriazaniumchlorid mit den entsprechenden Silbersalzen in Methanol oder mit Kaliumhalogeniden in fl. NH3 dargestellt. Durch Reaktion mit der OH-Form eines basischen Ionenaustauschers läßt sich eine verd. wäßr. Lösung des Hydroxids erhalten. Das Verhalten von Dimethyltriazaniumchlorid in neutraler, saurer und alkalischer wäßr. Lösung wird diskutiert.
Dimethyltriazanium-nitrate, -perchlorate, -methylsulfonate,-toluolsulfonate, -bromide and -iodide were prepared by reaction of dimethyltriazaniumchloride with the appropriate silver salts in methanol or with potassium halides in liquid ammonia. Treatment of [(CH3)2N(NH2)2]Cl with the OH-form of a basic ion exchange resin yields a dilute aqueous solution of dimethyltriazaniumhydroxide. The stability of dimethyltriazaniumchloride in neutral, acidic and basic aqueous solution will be discussed.
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Tungsten hexachloride reacts with dimethyl zinc or diphenyl zinc forming green methyl or phenyl tungsten pentachloride. However, tungsten hexachloride is reduced to tungsten tetrachloride on addition of zinc dialkyls with longer alkyl groups. Furthermore, alkyl tungsten pentachlorides can be prepared from tungsten hexachloride and tin tetraalkyls or boron trialkyls.  相似文献   

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Studies on Dialkyl Metal Phosphoric and Phosphinic Acid Derivatives of the Elements Aluminium, Gallium Indium, and Thallium. I. Preparation, Properties, and NMR Spectra of Dialkyl Metal Phosphoric and Phosphinic Acid Derivatives. The trialkyl compounds of Al, Ga, In and Tl react with equimolar quantities of phosphoric or phosphinic acids, HOOPX2 (X = F, Cl, H), HOSP(CH3)2 or HSSP(CH3)2, to form dialkylmetal phosphoric and phosphinic acid derivatives, respectively. The properties and the degree of association of these compounds are listed. The NMR- spectra (1H, 19F and 31P) show that the phosphorus containing groups act as bidentate ligands.  相似文献   

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