ISSN:
0009-2940
Schlagwort(e):
Synthesis aryl complexes of gold(III)
;
Mercury(II) as transmetallating agent
;
X-ray crystal structure
;
Ketonylgold(III) complex
;
Chemistry
;
Inorganic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The formylarylmercury(II) complex [Hg{C6H(CHO)-6-(OMe)3-2,3,4}2] reacts with 4-butylaniline (1:2) to give [Hg{C6H(CH=NC6H4C4H9-4′)-6-(OMe) 3-2,3,4}2] (1) by a condensation reaction. This complex reacts with Me4-N[AuCl4] (1:1) to give [Hg{C6H(CH=NC6H4C4H9-4′)-6-(OMe) 3-2,3,4}Cl] (2) and the monoarylgold(III) compound cis-C6H4-nBu-4′)-6-(OMe)3-2,3,4}Cl2] (3). This complex reacts with PPh3 (1:1) to give the adduct cis-[Au{C6H(CH=NC6H4-n, Bu-4′)-6-(OMe)3-2,3,4}Cl2(PPh3)] (4) and with AgClO4 (1:1) in acetone to give the ketonyl complex cis-[C6H4-nBu-4′)-6- (OMe)3-2,3,4}-{CH2C(O)Me}Cl] (5). cis-Me4N[Au(C6H4NO2-2)2Cl 2] react with [Hg{C6H3(N=NC6H4OMe-4′)-2-(OMe)-5}Cl] and Me4NCl (1:1:1) to give cis-[C6H4OMe-4′)-2- (OMe)-5}(C6H4NO2-2)2] (6): Similarly, cis-Me4N-[Au(C6H4CF3-2)2 Cl2] (7), obtained by treating [Hg(C6H4CF3-2)2] with Me4N[AuCl4] and Me4NCl (1:1:1), reacts with [Hg(C6H4CH2NMe2-2)Cl] and Me4NCl (1:1:1) to give the triarylgold(III) complex cis-[Me2-2)(C6H4CF3-2)2] (8). This complex can also be obtained by treating cis-[Me2-2)Cl2] with [Hg(C6H4CF3-2)2] and Me4NCl (1:1:1). The crystal structure of 3 reveals the presence of two independent molecules, in one of which the butylphenyl group is disordered. The geometry at the gold atom is square planar; distortions may be attributed to the narrow bite angle and steric repulsion between a chloride ligand and the ortho-methoxy group. The greater trans influence of the aryl ligand causes a great difference in Au-Cl bond lengths.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/cber.19961291025
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