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- W1493127029 abstract "Six borabenzene derivatives of vanadium are described. Reaction of the alkali metal borinates M(C5H5BR) (M = Na, K; R = Me, Ph) with VCl3 yields the paramagnetic, sandwich complexes V(C5H5BR)2. Reaction with HgCl2 and [Na{O(CH2CH2OCH3)2}2][V(CO)6] affords the tetracarbonyl compounds V(CO)4(C5H5BR). Upon heating in cycloheptatriene, the latter compounds produce the paramagnetic cycloheptatrienyl complexes V(C5H5BR)(C7H7) with sandwich structures. An X-ray structural study of V(CO)4(C5H5BMe) shows that the V(CO)4 fragment in the crystal is rotated by 10.4° relative to an ideal, eclipsed conformation where two CO groups are present in the plane through the B, V and C(4) atoms. Sechs Borabenzol-Derivate des Vanadiums werden beschrieben. Reaktion von Alkalimetall-borinaten M(C5H5BR) (M = Na, K und R = Me, Ph) mit VCl3, ergibt die paramagnetischen Sandwich-Komplexe V(C5H5BR)2. Reaktion mit HgCl2 und [Na{O(CH2CH2OCH3)2}2][V(CO)6] liefert die Tetracarbonyl-Verbindungen V(CO)4(C5H5BR). Diese ergeben beim Erhitzen in Cycloheptatrien paramagnetische Cycloheptatrienyl-Komplexe V(C5H3BR)(C7H7) mit Sandwich-Struktur. Eine Röntgenstrukturuntersuchung an V(CO)4(C5H5BMe) zeigt, dass das V(CO)4-Fragment im Kristall um 10.4° gedreht ist bezüglich einer idealen ekliptischen Konformation, bei der zwei CO-Gruppen in der Ebene durch die Atome B, V und C(4) enthalten sind." @default.
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- W1493127029 date "1984-04-01" @default.
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- W1493127029 title "Derivate des borabenzols" @default.
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- W1493127029 doi "https://doi.org/10.1016/0022-328x(84)80085-6" @default.
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