1994
DOI: 10.1021/ic00088a001
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A New Structural Motif of Gold Clustering at Oxide Centers in the Dication [Au6O2(PMe3)6]2+

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Cited by 70 publications
(67 citation statements)
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“…The halonium salts are not the first class where association between polyaurated onium salts is ligand and anion dependent: Pyramidal tetra(gold)arsonium cations and tri(gold)oxonium and -sulfonium cations {[(R 3 P)Au] n E} ϩ X Ϫ (E ϭ As͞n ϭ 4; E ϭ O,S͞n ϭ 3) were found as monomers and as dimers in lattices with different components (R 3 P and X), and the dimers may have different structures (29,(35)(36)(37). Likewise, methanium complexes {[(R 3 P)Au] 4 CH} ϩ BF 4 Ϫ appear to be associated in the crystal (38), whereas analogous C-substituted cations are monomeric (39).…”
Section: Discussionmentioning
confidence: 99%
“…The halonium salts are not the first class where association between polyaurated onium salts is ligand and anion dependent: Pyramidal tetra(gold)arsonium cations and tri(gold)oxonium and -sulfonium cations {[(R 3 P)Au] n E} ϩ X Ϫ (E ϭ As͞n ϭ 4; E ϭ O,S͞n ϭ 3) were found as monomers and as dimers in lattices with different components (R 3 P and X), and the dimers may have different structures (29,(35)(36)(37). Likewise, methanium complexes {[(R 3 P)Au] 4 CH} ϩ BF 4 Ϫ appear to be associated in the crystal (38), whereas analogous C-substituted cations are monomeric (39).…”
Section: Discussionmentioning
confidence: 99%
“…These pathways, or slightly modifications of them, have given a great variety of trinuclear derivatives with different monophosphines as ligands [33,96,[110][111][112][113][114][115][116][117]. The trinuclear cation [Au 3 …”
Section: Clustering Of Gold Atoms At One Centermentioning
confidence: 99%
“…[2,5] Salze mit den vierkernigen Bis[triphenylphosphangold(I)]halonium-Dikationen A, [6,7] in denen vier Gold-Atome eine verzerrt-tetraedrische Anordnung mit vier relativ kleinen inter-und zwei größeren intramolekularen Au···Au-Abständen aufweisen, sind ungewöhn-liche Verbindungen dieses Typs, die ausschließlich im Festkörper stabil sind. Für das Bis(trigoldoxonium)-Dikation B [8] und den Bis(tetraauriomethan)-Komplex C [9] wurde ein analoger Aufbau ebenfalls nur im Festkörper beobachtet. In Lösung dissoziieren diese dikationischen Komplexe aufgrund von elektrostatischer Abstoßung.…”
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