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'Tungsten Nitride Chloride P0Cl3 Solvate' in keywords
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1979 (1)
1Author    Wilfried Musterle, Joachim Strähle, Wolfgang Liebelt, Kurt DehnickeRequires cookie*
 Title    Darstellung, IR-Spektrum und Kristallstruktur von [WNCI3 P0C13]4 2 POCI3 Preparation, IR Spectra and Crystal Structure of [WNCI3 * P0C13]4 * 2 P0C13  
 Abstract    Tungsten nitride chloride-POCl3 solvate, [WNC13 • P0C13]4 • 2 POCl3 is prepared by the reaction of WNCI3 with excess POCI3. With equimolar amounts of POCI3 in dichloro-methane suspension the complex [WNCI3 • P0C13]4 • 2 CH2CI2 is formed, which is easily decomposed leaving pure [WNCI3 • POCl3]4. The IR spectra of these complexes were recorded and assigned. A new preparative route to WNCI3 from tungsten hexachloride and iodine azide is described. [WNCI3 • P0C13]4 • 2 POCl3 crystallizes in the triclinic space group P 1 with two tetrameric units per unit cell. The crystal structure was solved by X-ray diffraction methods (Ä = 0,087; 3085 observed reflexions). The structure consists of planar and almost square W4N4-eight-membered rings with alternating W-N bond lengths. The distorted octahedral environment of the tungsten atoms is completed by three terminal Cl-ligands and by the oxygen atom of a POCI3 molecule, which is co-ordinated trans to the W = N triple bond. The two additional POCI3 molecules are weakly linked to two of the four POCI3 solvate molecules, giving rise to an increase of the W-0 bond lengths to these donor groups. 
  Reference    Z. Naturforsch. 34b, 942—948 (1979); eingegangen am 26. März 1979 
  Published    1979 
  Keywords    Tungsten Nitride Chloride-P0Cl3 Solvate, Preparation, IR, Crystal Structure 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-0942.pdf 
 Identifier    ZNB-1979-34b-0942 
 Volume    34