In:
European Journal of Inorganic Chemistry, Wiley, Vol. 2007, No. 31 ( 2007-11), p. 4946-4951
Kurzfassung:
The crystal structures for cis‐ (Ph 2 PCH=CHPPh 2 )(AuI) 2 and trans‐ (Ph 2 PCH=CHPPh 2 )(AuI) 2 are reported. The structure of cis‐ (Ph 2 PCH=CHPPh 2 )(AuI) 2 reveals a short intramolecular Au–Au distance of 2.9526(5) Å, while the structure of trans ‐(Ph 2 PCH=CHPPh 2 )(AuI) 2 shows intermolecular Au–Au distances of 3.2292(7) Å. Structural data for the iodide complexes are compared to previously reported crystal structural data for cis‐ and trans ‐(Ph 2 PCH=CHPPh 2 )(AuCl) 2 and dppbz(AuCl) 2 . The quantum yields for the photochemical isomerization of cis ‐(Ph 2 PCH=CHPPh 2 )(AuX) 2 with 334‐nm light, Φ ( cis → trans ), are 0.204, 0.269, and 0.363 for X = Cl, Br, and I, respectively. Prior results from ab initio calculations on the model cis ‐ and trans ‐Au 2 X 2 C 2 H 2 (PH 2 ) 2 complexes aid in the interpretation of the correlation between the quantum yield for isomerization and the calculated aurophilic attraction potential V ( R e ). (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Materialart:
Online-Ressource
ISSN:
1434-1948
,
1099-0682
DOI:
10.1002/ejic.v2007:31
DOI:
10.1002/ejic.200700575
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2007
ZDB Id:
1475009-0
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