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Aurophilicity: The Effect of the Neutral Ligand L on [{ClAu L } 2 ] Systems
Author(s) -
Muñiz Jesús,
Wang Cong,
Pyykkö Pekka
Publication year - 2011
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201001765
Subject(s) - ligand (biochemistry) , chemistry , isocyanide , pyridine , crystallography , halide , stereochemistry , inorganic chemistry , medicinal chemistry , biochemistry , receptor
The effect of the ligand L on the aurophilic Au I ⋅⋅⋅Au I closed‐shell interaction in perpendicular [{ClAu L } 2 ] model systems is investigated. An analogous study of the effect of the halide X (here Cl) exists, and showed a correlation with the softness of the ligand X . In this work, we study the correlation with L =N‐heterocyclic carbenes (NHC), cyclic diphosphinocarbenes (PHC), NF 3 , CO, methyl isocyanide CNMe, PF 3 , SH 2 , NH 3 , H 2 O, pyridine, triazene, the carbodiphosphorene model C(PH 3 ) 2 , C 3 H 2 , and the related model systems CN 2 or CP 2 . The NHCs yield stronger interactions than PH 3 . The spatial orientation of certain ligands in a “paddle” configuration plays an important role on the strength of the interaction. All are examples on aurophilicity.