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  • 1
    ISSN: 1572-8862
    Keywords: silver ; amidines ; diphenylamidines ; tetrameric ; C-alkylamidines ; thermal stability ; imaging ; thermographic ; photothermographic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract N,N′−Diphenylamidines and the silver(I) complexes of their deprotonated anions have been synthesized. Previously uncharacterized tetrameric structural motifs were produced by the inclusion of alkyl substituents at the amidinate carbon. The addition of a 2-methoxy functional group to the phenyl ring resulted in a cationic silver trimer in which hydrogen bonding links silver(I)-bound water molecules to the methoxy substituents. The thermal stabilities of the tetrameric species vary with alkyl chain length. The new complexes are: tetrakis(N,N′-diphenylpropamidinato) tetra silver(I), 1, tetrakis(N,N′-diphenylbutamidinato) tetrasilver(I) 2, tetrakis(N,N′-diphenylpentamidinato) tetra silver(I) 3, (N,N′-diphenyloctamidinato)silver(I) 4, (tetrakis(N,N′-di(4-n-butyl)phenylpropamidinato)tetrasilver(I), 5, bis(N,N′-di(2-methoxy)phenylacetamidinato)diaquatrisilver(I) nitrate 6 and tetrakis(N,N′-di(4-methoxy)phenylacetamidinato) tetrasilver(I), 7. Compounds 1, 5, 6 and 7 were structurally characterized by X-ray methods.
    Type of Medium: Electronic Resource
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