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1999 (1)
1Author    Dilip Kumar Dey, MrinalKanti Dasa, Heinrich NöthRequires cookie*
 Title    Synthesis, Spectroscopy and Structure of Diorganotin(IV) Schiff Base Complexes  
 Abstract    Three diorganotin(IV) chelates with a tetradentate Schiff base, H2Vanophen, [FLVanophen = N,N'-l,2-phenylen-bis(3-methoxysalicylideneimine)] of the type R2Sn(Vanophen) (R = Ph: 1; R = rt-Bu: 2; R = Me: 3) have been synthesized by the reaction of R2SnCl2 (R = Ph, n-Bu, Me) and FLVanophen in the presence of triethylamine in benzene. The complexes have been characterised by IR and NMR spectroscopy and by elemental analysis. The <$(' l9Sn) values for the complexes 1 -3 are -543.0, -414.2 and -398.2 ppm respectively, indicating hexacoordinated Sn centers. These have been ascertained by X-ray crystal structure determinations of 1 and 3. The distances between tin and the two axial carbon atoms in each complex differ not significantly [2.17(1) Ä in 1, and 2.100(3) and 2.115(3) A in 3). The C-Sn-C angles for 1 and 3 are 165.9(4)° and 159.96(9)°, respectively. The solution NMR spectra ('H , l3C, 1|ySn) show clearly that the solid state structures are retained in solution. 
  Reference    Z. Naturforsch. 54b, 145—154 (1999); received September 16 1998 
  Published    1999 
  Keywords    Diorganotin(IV) Complexes, FLVanophen, X-Ray Data, Infrared Data, NMR Data 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0145.pdf 
 Identifier    ZNB-1999-54b-0145 
 Volume    54