Studies of ligand exchange in N-heterocyclic carbene silver(I) complexes

Haw Lih Su; Lisa M. Pérez; Sheng Jui Lee; Joseph H. Reibenspies; Hassan S. Bazzi; David E. Bergbreiter

doi:10.1021/om300340w

Studies of ligand exchange in N-heterocyclic carbene silver(I) complexes

Haw Lih Su, Lisa M. Pérez, Sheng Jui Lee, Joseph H. Reibenspies, Hassan S. Bazzi, David E. Bergbreiter^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

93 Citations (Scopus)

Abstract

A series of N-heterocyclic carbene (NHC) Ag(I) complexes have been prepared and used to study the dynamics of NHC ligand exchange in these Ag(I) complexes. These studies used solution-state variable-temperature (VT) ¹³C NMR spectroscopy and the temperature-dependent changes in ¹³C- ^107/109Ag coupling to determine activation energies for the ligand exchange process. The effects of concentration, bridging anions, and additives on the exchange process have been studied. The experimental activation energies for the NHC ligand exchange processes of these silver complexes are also compared with DFT calculations. The results are consistent with an associative mechanism for the Ag(I)-NHC exchange process.

Original language	English
Pages (from-to)	4063-4071
Number of pages	9
Journal	Organometallics
Volume	31
Issue number	10
DOIs	https://doi.org/10.1021/om300340w
Publication status	Published - 28 May 2012
Externally published	Yes

Access to Document

10.1021/om300340w

Cite this

@article{be51adf6b3154f779483188a48b6ab7c,

title = "Studies of ligand exchange in N-heterocyclic carbene silver(I) complexes",

abstract = "A series of N-heterocyclic carbene (NHC) Ag(I) complexes have been prepared and used to study the dynamics of NHC ligand exchange in these Ag(I) complexes. These studies used solution-state variable-temperature (VT) 13C NMR spectroscopy and the temperature-dependent changes in 13C- 107/109Ag coupling to determine activation energies for the ligand exchange process. The effects of concentration, bridging anions, and additives on the exchange process have been studied. The experimental activation energies for the NHC ligand exchange processes of these silver complexes are also compared with DFT calculations. The results are consistent with an associative mechanism for the Ag(I)-NHC exchange process.",

author = "Su, {Haw Lih} and P{\'e}rez, {Lisa M.} and Lee, {Sheng Jui} and Reibenspies, {Joseph H.} and Bazzi, {Hassan S.} and Bergbreiter, {David E.}",

year = "2012",

month = may,

day = "28",

doi = "10.1021/om300340w",

language = "English",

volume = "31",

pages = "4063--4071",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

number = "10",

}

TY - JOUR

T1 - Studies of ligand exchange in N-heterocyclic carbene silver(I) complexes

AU - Su, Haw Lih

AU - Pérez, Lisa M.

AU - Lee, Sheng Jui

AU - Reibenspies, Joseph H.

AU - Bazzi, Hassan S.

AU - Bergbreiter, David E.

PY - 2012/5/28

Y1 - 2012/5/28

N2 - A series of N-heterocyclic carbene (NHC) Ag(I) complexes have been prepared and used to study the dynamics of NHC ligand exchange in these Ag(I) complexes. These studies used solution-state variable-temperature (VT) 13C NMR spectroscopy and the temperature-dependent changes in 13C- 107/109Ag coupling to determine activation energies for the ligand exchange process. The effects of concentration, bridging anions, and additives on the exchange process have been studied. The experimental activation energies for the NHC ligand exchange processes of these silver complexes are also compared with DFT calculations. The results are consistent with an associative mechanism for the Ag(I)-NHC exchange process.

AB - A series of N-heterocyclic carbene (NHC) Ag(I) complexes have been prepared and used to study the dynamics of NHC ligand exchange in these Ag(I) complexes. These studies used solution-state variable-temperature (VT) 13C NMR spectroscopy and the temperature-dependent changes in 13C- 107/109Ag coupling to determine activation energies for the ligand exchange process. The effects of concentration, bridging anions, and additives on the exchange process have been studied. The experimental activation energies for the NHC ligand exchange processes of these silver complexes are also compared with DFT calculations. The results are consistent with an associative mechanism for the Ag(I)-NHC exchange process.

UR - http://www.scopus.com/inward/record.url?scp=84861494092&partnerID=8YFLogxK

U2 - 10.1021/om300340w

DO - 10.1021/om300340w

M3 - Article

AN - SCOPUS:84861494092

SN - 0276-7333

VL - 31

SP - 4063

EP - 4071

JO - Organometallics

JF - Organometallics

IS - 10

ER -

Studies of ligand exchange in N-heterocyclic carbene silver(I) complexes

Abstract

Access to Document

Other files and links

Fingerprint

Cite this