The complex [(iPrIm)Ag(NO3)]4 (iPrIm = N,N′-bis(isopropyl)imidazol-2-ylidene) was obtained by reacting Ag(cod)NO3 with [(iPrIm)AgCl]2 in CH2Cl2. The solid-state structure reveals that the complex is composed of a tetrameric core with two different ligands coordinated in both terminal and bridging mode, giving rise to a final formulation better described as [Ag4(iPrIm)2(μ-iPrIm)2(ONO2)2(μ,κO-ONO2)2]. DFT calculations found that the tetramer can exist in two almost isoenergetic isomers, one corresponding to the crystallographic structure and one with terminal-only carbene ligands. Conversely, with halide, only one isomer can be formed.

DELLA PERGOLA, R., Bruschi, M., Sironi, A., Colombo, V., Sironi, A. (2014). Tetrameric Silver (I) complex with bridging N-heterocyclic carbene ligands: [(iPrImAg(NO3)]4. ORGANOMETALLICS, 33(19), 5610-5613 [10.1021/om500733f].

Tetrameric Silver (I) complex with bridging N-heterocyclic carbene ligands: [(iPrImAg(NO3)]4

DELLA PERGOLA, ROBERTO;BRUSCHI, MAURIZIO;SIRONI, ANNALISA;
2014

Abstract

The complex [(iPrIm)Ag(NO3)]4 (iPrIm = N,N′-bis(isopropyl)imidazol-2-ylidene) was obtained by reacting Ag(cod)NO3 with [(iPrIm)AgCl]2 in CH2Cl2. The solid-state structure reveals that the complex is composed of a tetrameric core with two different ligands coordinated in both terminal and bridging mode, giving rise to a final formulation better described as [Ag4(iPrIm)2(μ-iPrIm)2(ONO2)2(μ,κO-ONO2)2]. DFT calculations found that the tetramer can exist in two almost isoenergetic isomers, one corresponding to the crystallographic structure and one with terminal-only carbene ligands. Conversely, with halide, only one isomer can be formed.
Articolo in rivista - Articolo scientifico
Silver, N-heterocyclic carbene, bridging ligands, solid state structure, DFT calculations
English
2014
33
19
5610
5613
none
DELLA PERGOLA, R., Bruschi, M., Sironi, A., Colombo, V., Sironi, A. (2014). Tetrameric Silver (I) complex with bridging N-heterocyclic carbene ligands: [(iPrImAg(NO3)]4. ORGANOMETALLICS, 33(19), 5610-5613 [10.1021/om500733f].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/53941
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