Co-ligand triphenylphosphine/alkynyl-stabilized undecagold nanocluster with a capped crown structure.
RSC Adv
; 12(18): 11047-11051, 2022 Apr 07.
Article
em En
| MEDLINE
| ID: mdl-35425070
ABSTRACT
We report the synthesis and crystal structure of novel co-ligand phosphine/alkynyl protected Au nanoclusters, with composition [Au11(PPh3)8(C[triple bond, length as m-dash]CPh-CF3)2](SbF6) (1). The gold atoms in the cluster as a capped crown structure subtend C 3v symmetry with one deriving from a central icosahedron and 10 peripheral Au atoms, and all alkynides are exclusively σ coordination bonding. The mean core diameter is about 5.1 Å and the overall van der Waals diameter can be estimated to be 20.5 Å. The optical absorbance of 1 in solution reveals characteristic peaks at 384 and 426 nm and a shoulder between 450 and 550 nm.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
RSC Adv
Ano de publicação:
2022
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Article