The Elusive Palladium-Diazo Adduct Captured: Synthesis, Isolation and Structural Characterization of [(ArNHC-PPh2)Pd(eta(2)-N2C(Ph)CO2Et)]

The first example of a diazo palladium adduct is reported. The complexes [(ArNHC-PPh2) M(eta(N2C)-N-2(Ph) CO2Et)] (M = Ni, 3; M = Pd, 4; ArNHC-PPh2 = 3-(2,6-diisopropylphenyl)- 1-[(diphenylphosphino)ethyl] imidazol-2-ylidene) were prepared by ligand exchange with styrene-coordinated precursors [(ArN...

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Bibliographic Details
Authors: González Rull, Silvia, Álvarez, Eleuterio, Romero Fructos-Vázquez, Manuel, Rodríguez Belderraín, Tomás, Pérez Romero, Pedro José
Format: article
Publication Date:2017
Country:España
Institution:Universidad de Huelva (UHU)
Repository:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Language:English
OAI Identifier:oai:ariasmontano.uhu.es:10272/16194
Online Access:http://hdl.handle.net/10272/16194
Access Level:Open access
Keyword:Carbene transfer
Diazo ligands
Nhc-phosphine ligand
Palladium(0) complexes
Palladium diazo adduct
Description
Summary:The first example of a diazo palladium adduct is reported. The complexes [(ArNHC-PPh2) M(eta(N2C)-N-2(Ph) CO2Et)] (M = Ni, 3; M = Pd, 4; ArNHC-PPh2 = 3-(2,6-diisopropylphenyl)- 1-[(diphenylphosphino)ethyl] imidazol-2-ylidene) were prepared by ligand exchange with styrene-coordinated precursors [(ArNHC @ PPh2) M(styrene)] (M = Ni, 1; M = Pd, 2). Complex 4 was fully characterized, including X-ray analyses; this constitutes the first example of a diazo adduct compound with palladium, thereby closing the gap between Groups 8 and 10 regarding this type of compounds.

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