Publication

Bimetallic nickel complexes with bridging dithiolato Schiff base ligands: synthesis, mass spectral characterisation and electrochemistry

Abstract
Schiff base dithiols with thiophene or phenyl linkers were prepared from condensation of the dialdehydes 2,5-(OHC)₂C₄H₂S, 1,3-(OHC)₂C₆H₄, 1,4-(OHC)₂C₆H₄ and 1,4'-(OHC)₂(C₆H₄)₂ with 4-H₂NC₆H₄(SH). The Schiff base dithiols readily reacted with Ni( ⁵-C₅H₅)(PR₃)Br (R=Bu or Ph) in the presence of Et₃N to form bimetallic complexes ( ⁵-C₅H₅)(PR₃)Ni&unknown;SC₆H₄N&unknown;C(H)ArC(H)&unknown;NC₆H₄S&unknown;Ni(PR₃)( ⁵-C₅H₅) (Ar=C₄H₂S (6), 1,3-C₆H₄ (7), 1,4-C₆H₄ (8), 1,4'-(C₆H₄)₂ (9). The bimetallic nature was established from elemental analysis and mass spectrometry. Cyclic voltammetry of complexes 6, 8 and 9 are indicative of electronic communication between the nickel centres via the bridging dithiolato Schiff base ligands.
Type
Journal Article
Type of thesis
Series
Citation
Moutloali, R. M., Nevondo, F. A., Darkwa, J., Iwuoha, E. I., & Henderson, W. (2002). Bimetallic nickel complexes with bridging dithiolato Schiff base ligands: synthesis, mass spectral characterisation and electrochemistry. Journal of Organometallic Chemistry, 656(1), 262-269.
Date
2002
Publisher
Elsevier Science SA
Degree
Supervisors
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