ISSN:
1434-1948
Keywords:
Metalla-β-diketones
;
Platinum
;
Bis(acyl)-bridged complexes
;
Platinum blues
;
Metal-metal interactions
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The platina-β-diketone [Pt2{(COMe)2H}2(μ-Cl)2] (1) reacts with aliphatic amines [nBuNH2, (iPr)2NH, NEt3], N-methylaniline, and N,N-dimethylaniline, as well as with strong bases, such as a proton sponge or [NMe4]OH, in an equimolar ratio to give the anionic platina-β-diketonato complexes of platina-β-diketones [BH]2[{Cl2Pt(μ-COMe)2Pt[(COMe)2H]}2] (3) {B = nBuNH2 (3a), (iPr)2NH (3b), NEt3 (3c), PhNHMe (3d), PhNMe2 (3e), C10H6(NMe2)2 [1,8-bis(dimethylamino)naphthalene] (3f) and [NMe4]2[{Cl2Pt(μ-COMe)2Pt[(COMe)2H]}2] (3g)}. All complexes were characterized by microanalysis, and by 1H-NMR and IR spectroscopy. X-ray structure analyses reveal that in the solid state the complexes 3a · 0.5 CH2Cl2 and 3g · 2 CH2Cl2 consist of tetranuclear dianions with zigzag Pt4 chains [Pt-Pt-Pt angle: 122.92(3)° (3a), 119.30(6)° (3g)]. The central Pt···Pt distances [3a: 3.171(1) Å, 3g: 3.176(1) Å] give evidence for closed shell d8-d8 interactions. Thus, these bis(acyl)-bridged complexes can be regarded as organometallic analogues of platinum blue complexes.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
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