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'Tungsten' in keywords Facet   Publication Year 1987  [X]
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1987[X]
1Author    Anke Brauel, Dieter RehderRequires cookie*
 Title    Ein neuer Weg zur Darstellung der Nitrosylkomplexe CpM(CO) 2 NO (M = Cr/Mo/(W)) durch NO/CO-Austausch zwischen [Co(NO) 2 Hal] 2 und Carbonyl-cyclopentadienylkomplexen* A Novel Route to the Nitrosyl Complexes CpM(CO) 2 NO (M = Cr/Mo/(W)) by NO/CO Exchange between [Co(NO) 2 Hal] 2 and Carbonyl-cyclopentadienyl Complexes  
 Abstract    The title compounds have been prepared by NO transfer from [Co(NO)iHal] 2 (Hal = Cl, Br, I) to [CpM(CO) 3 ] 2 , CpM(H)(CO) 3 and [CpM(CO) 3 ]" (M = Cr, Mo, W; Cp = ?7 5 -C 5 H 5). In the case of the neutral complexes, the reactions need initiation and support by light; the anionic complexes are nitrosylated in a dark reaction. The highest yields (60%) are obtained from the reactions between [Co(NO) 2 Br] 2 and [CpM(CO) 3 ] 2 (M = Cr, Mo). 
  Reference    Z. Naturforsch. 42b, 605—609 (1987); eingegangen am 26. November 1986/7. Januar 1987 
  Published    1987 
  Keywords    Nitrosyltransfer, Carbonyl-Nitrosyl Complexes, Chromium, Molybdenum, Tungsten 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0605.pdf 
 Identifier    ZNB-1987-42b-0605 
 Volume    42 
2Author    Regine Herbst, KatteshV. Katti, HerbertW. Roesky, GeorgeM. SheldrickRequires cookie*
 Title    Synthese und Struktur des ersten Cyclophosphazens mit einer M etall—Metall-Bindung im Ringgerüst Synthesis and Structure o f the First Cyclophosphazene Containing a Metal —Metal Bond within the Ring Skeleton  
 Abstract    The reaction of [H2NPPh2NPPh2N H 2]Cl (1) with WClft (2) proceeds with formation of NPPh2NPPh2NWCl3 (3) and HCl,N6P4Ph8W 2 (4). 3 is the main product of this reaction. 4 was characterized by an X-ray structure determination. 4 contains a seven and a six-membered phos-phorus-nitrogen ring with a W —W bond of 269.2 pm. 
  Reference    Z. Naturforsch. 42b, 1387 (1987); eingegangen am 22. Juni/6. August 1987 
  Published    1987 
  Keywords    Tungsten, 6;r-Systems, X-Ray, Phosphorus-Nitrogen Compound 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-1387.pdf 
 Identifier    ZNB-1987-42b-1387 
 Volume    42