1970
DOI: 10.1002/zaac.19703760102
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Gemischte Halogenide von Niob und Tantal

Abstract: Es wird über Darstellungsmöglichkeiten, Bindungsverhältnisse und Reaktionen der gemischten Halogenide (AClnF5−n)x (A = Nb, Ta) berichtet. Die bei diesen Verbindungen auftretenden Fluorbrücken können durch Donorlösungsmittel wie CH3CN aufgebrochen werden, wobei Dismutation zu (AF5 · CH3CN) · 2 CH3CN und ACl5 · CH3CN eintritt. Die entstehenden Acetonitriladdukte der Pentafluoride gehen im Vakuum bei Zimmertemperatur in die Verbindungen AF5 · CH3CN über. Auch einfache Halogenidanionen wie Cl− spalten die F‐Brücke… Show more

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Cited by 10 publications
(2 citation statements)
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“…The fundamental error is the supposition that by the reaction of educts in distinct molar ratios, distinct substances of defined composition are obtainable. This is especially true for Nb(V), Ta(V), Ti(IV), and Sn(IV) which form kinetically labile complexes which interconvert by a fast exchange in dynamic equilibria. , …”
Section: Mixed-hexahalogeno Complexesmentioning
confidence: 99%
See 1 more Smart Citation
“…The fundamental error is the supposition that by the reaction of educts in distinct molar ratios, distinct substances of defined composition are obtainable. This is especially true for Nb(V), Ta(V), Ti(IV), and Sn(IV) which form kinetically labile complexes which interconvert by a fast exchange in dynamic equilibria. , …”
Section: Mixed-hexahalogeno Complexesmentioning
confidence: 99%
“…This is especially true for Nb-(V), Ta(V), Ti(IV), and Sn(IV) which form kinetically labile complexes which interconvert by a fast exchange in dynamic equilibria. 16,[26][27][28][29][30] Mixed compounds with ionic and neutral ligands like [MCl n (NH 3 ) 6-n ] z-n , n ) 0-6, where the charges of the complexes alter within the series, and enable chemical separation by different counter ions and solubilities, stand in marked contrast to mixedhexahalogeno series, where this opportunity is ruled out by the very similar solubilities of the components and their already mentioned tendency to form mixed crystals. Therefore, powerful and efficient separation techniques are indispensable for studies on systems defying in situ investigations.…”
Section: General Commentsmentioning
confidence: 99%