2012
DOI: 10.1039/c2cc33735e
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[(CF3)4Au2(C5H5N)2] – a new alkyl gold(ii) derivative with a very short Au–Au bond

Abstract: A new gold(II) species [(CF(3))(4)Au(2)(C(5)H(5)N)(2)] with a very short unsupported Au-Au bond (250.62(9) pm) was generated by photo irradiation of a silver aurate, [Ag(Py)(2)][Au(CF(3))(2)], unambiguously characterized by (19)F and (109)Ag NMR studies.

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Cited by 23 publications
(27 citation statements)
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References 18 publications
(16 reference statements)
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“…3 Recently two cases with unbridged Au(II)-Au(II) bonds were reported. 4,5 Earlier examples were reported by the groups of Yam 6,7 and Raubenheimer. 8 Common to all these cases were nearly perpendicular Au (CN = 4) planes and short Au(II)-Au(II) bonds of the order of 249-264 pm.…”
mentioning
confidence: 96%
“…3 Recently two cases with unbridged Au(II)-Au(II) bonds were reported. 4,5 Earlier examples were reported by the groups of Yam 6,7 and Raubenheimer. 8 Common to all these cases were nearly perpendicular Au (CN = 4) planes and short Au(II)-Au(II) bonds of the order of 249-264 pm.…”
mentioning
confidence: 96%
“…B. in Au I /Au III ‐Komproportionierungs‐Reaktionen. Frühe Beispiele wurden von den Gruppen von Yam in 1996 und Kuz′mina in 2003 dokumentiert, gefolgt von denen von Raubenheimer, Mathur und Bochmann . Theoretische Arbeiten von Pyykkö haben die thermodynamische Stabilität der nicht gestützten Au II ‐Au II ‐Bindung als einzige Verknüpfung zwischen zwei Moleküleinheiten bestätigt .…”
Section: Eckdaten Für Gold‐gold‐bindungen In Zweikernigen Au0‐ Und Auunclassified
“…einem 1,8‐Diphosphinonaphthalin‐Liganden . DFT‐Rechnungen von Xiong und Pyykkö haben für zweikernige Modellverbindungen, die den in experimentellen Arbeiten verwendeten Molekülen ähneln, Au II ‐Au II ‐Abstände von 2.50–2.55 Å und eine Bindungsenergie von ca. 47.8 kcal mol −1 vorhergesagt …”
Section: Eckdaten Für Gold‐gold‐bindungen In Zweikernigen Au0‐ Und Auunclassified
“…These reactions seem to proceed by the oxidative addition of ICF 3 to the Au(I) complexes to give a [Au(CF 3 )(Me)IL] intermediate, which undergoes Me for I ligand exchange with the unreacted [Au-(Me)L]. In contrast, a very fast Scheme 7 Formation of Au(II) trifluoromethyl complexes by (i) transmetallation in an Au(II) chloro complex, 117 and (ii) photo-disproportionation of [Ag( py) 2 ][Au(CF 3 ) 2 ] 118. Evidence of a radical chain mechanism for these oxidative addition reactions was obtained (Scheme 9).The photooxidative addition of ICF 3 to [Au(Ar)L] has been reported by Toste's group (Scheme 10) 67.…”
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confidence: 99%