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'UV VIS Spectra' in keywords Facet   Publication Year 1982  [X]
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1Author    Christian Reichardt, Ulrich RustRequires cookie*
 Title    Synthesen mit aliphatischen Dialdehyden, XXXII [1] Darstellung und Reaktionen N-substituierter 2-Aminomalondialdehyde Syntheses with Aliphatic Dialdehydes, XXXII [1] Syntheses and Reactions of N-Substituted 2-Aminomalondialdehydes  
 Abstract    The 2-amino malondialdehyde bis[dimethylacetal] 2 and some of its N-monosubstituted derivatives 7 a-d as well as the o-carboxy benzoyl malondialdehyde 12 have been prepared. With heterocyclic imonium salts these amino malondialdehyde derivatives form, by a twofold condensation reaction, the y-acylamino-substituted pentamethine cyanine dyes 15 a-c, 17, and 18a-b, the UV/Vis and 13 C NMR spectra of which are recorded with respect to the influence of the y-substituent on these spectra. 
  Reference    Z. Naturforsch. 37b, 236—245 (1982); eingegangen am 22. September 1981 
  Published    1982 
  Keywords    2-Aminomalondialdehyde Derivatives, y-Acylaminopentamethinecyanine Dyes, UV/Vis Spectra, 13 C NMR Spectra 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0236.pdf 
 Identifier    ZNB-1982-37b-0236 
 Volume    37 
2Author    Horst Elias, Elke Hilms, Helmut PaulusRequires cookie*
 Title    X-Ray Structures and Spectral Properties of 4-Coordinate Copper(II) and Palladium(II) Complexes with a Tridentate ONN-Schiff Base Ligand  
 Abstract    The tridentate mono-basic Schiff base N-(2-diethylaminoethyl)salicylaldimine =Hsal-en-NEt2 forms complexes 1 = [(sal-en-NEt2)MY] with divalent metals M (Y = halide). The preparation of three copper(II) complexes la (Y = Br), lb (Y = Cl), and lc (Y = SCN) and one palladium(II) complex 1(1 (Y = Cl) is described and the UV/VIS spectra of these complexes in methanol and chloroform are compared and discussed. The crystals of la • CHCI3, lb • CHCI3, and Id • CHCI3 are all isotypic and crystallize in the ortho-rhombic space group Pbca, whereas the solvent-free crystals of 1 b (and also 1 a) are monoclinic with the space group P2i/c. The metal is 4-coordinate with an almost planar ONNY donor atom arrangement around the palladium and with a distorted arrangement around the copper. The crystals consist of separate non-bridged complex units and the chloroform is not coordinated. 
  Reference    Z. Naturforsch. 37b, 1266—1273 (1982); received March 31 1982 
  Published    1982 
  Keywords    X-ray, UV/VIS Spectra, Tridentate ONN Schiff Base, Copper(II) Complexes, Palladium(II) Complexes 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-1266.pdf 
 Identifier    ZNB-1982-37b-1266 
 Volume    37