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'UV Spectra' in keywords Facet   Publication Year 1982  [X]
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1982[X]
1Author    Rudolf Allmann, Eberhard Hohaus, Stanislaw 01ejnikRequires cookie*
 Title    Boron Chelates and Boron-Metal Chelates, X [1] 3-(2-Hydroxyphenyl)-2,2-diphenyl-l-oxa-3-azonia-2-borata-naphthalene- methanol (1/1): Synthesis, Spectroscopic Investigations and Crystal Structure  
 Abstract    2-Aminophenol, salicylaldehyde and diphenylboric anhydride react in methanol to form a fluorescent, chelate-like azomethineboron compound containing methanol. The title compound, C25H20BNO2 • CH3OH, was examined by UV, IR, HI, and NMR spectroscopy as well as by thermogravimetry and X-ray structure analysis (Pbnb, a= 8.815, b= 17.309, c = 28.992 Ä, R = 5.5%). These investigations show the six-membered chelate ring (chelate A) to exist as formulated in [2] and not as a five-membered chelate ring B. One methanol molecule connects two chelate molecules by hydrogen bonds, resulting in an overall ratio of chelate to methanol of 1 : 1. 
  Reference    Z. Naturforsch. 37b, 1450—1455 (1982); received May 1 O/June 11 1982 
  Published    1982 
  Keywords    Boron Chelate, Azomethine, Crystal Structure, UV Spectra, NMR Spectra 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-1450.pdf 
 Identifier    ZNB-1982-37b-1450 
 Volume    37