A palladacyclic N-heterocyclic carbene system used to probe the donating abilities of monoanionic chelators

Dalton Transactions : an International Journal of Inorganic Chemistry
Xuechao YanHan Vinh Huynh

Abstract

A series of NHC-containing [C^N]- or [C^C']-type palladacyclic complexes of the general formula [PdBr(iPr2-bimy)(L^X)] (5-8, 11, 12, iPr2-bimy = 1,3-diisopropylbenzimidazolin-2-ylidene) have been synthesized and fully characterized. Using these complexes, the donating abilities of monoanionic chelators were probed for the first time. The [C^N]-type palladacycles 5-8 were prepared from acetato-bridged dipalladium complexes [Pd(μ-CH3COO)(C^N)]2 (1-4) and iPr2-bimy·H+Br-as precursors. In the case of the [C^C']-type NHC palladacycles (11, 12), the hetero-bis(NHC) complexes trans-[PdBr2(iPr2-bimy)(trz)] (8, 9, trz = 1,2,3-triazolin-5-ylidene) containing the iPr2-bimy probe were first prepared followed by acetate-assisted cyclopalladations. The 13Ccarbene NMR signals of the iPr2-bimy ligands in all complexes (i.e. HEP and HEP2 values) are found to rationally reflect the donating abilities of the incorporated trz or [L^X]-type chelators with the exception of the Bzpy ligand (Bzpy = 2-(2-pyridinylmethyl)phenyl-C,N). This has been attributed to its larger bite angle, the resulting varied coordination geometry and the lack of electronic delocalization between the two donor units. The donicities of [L^X]-type chelators studied in this wor...Continue Reading

References

Aug 23, 2003·Chemical Communications : Chem Comm·Robin B Bedford
Jun 9, 2005·Chemical Reviews·Jairton DupontJohn Spencer
Feb 27, 2008·Journal of the American Chemical Society·Wing-Yiu YuAlbert S C Chan
Apr 10, 2008·Angewandte Chemie·F Ekkehardt Hahn, Mareike C Jahnke
Sep 13, 2008·Journal of the American Chemical Society·Paulson MathewMartin Albrecht
Apr 14, 2009·Chemical Reviews·Joseph C Y LinIvan J B Lin
Jul 11, 2009·Chemical Reviews·Silvia Díez-GonzálezSteven P Nolan
Aug 18, 2010·Angewandte Chemie·Thomas Dröge, Frank Glorius
Mar 9, 2011·Journal of the American Chemical Society·Thomas W LyonsMelanie S Sanford
Dec 20, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Daniel CanellaFritz E Kühn
Jun 2, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Jan Christopher Bernhammer, Han Vinh Huynh
Nov 13, 2012·Angewandte Chemie·Lars-Arne SchaperFritz E Kühn
Dec 22, 2012·Chemical Communications : Chem Comm·Ramananda MaityF Ekkehardt Hahn
Mar 26, 2013·Journal of the American Chemical Society·Ramananda MaityF Ekkehardt Hahn
Jun 22, 2013·Chemical Society Reviews·David J Nelson, Steven P Nolan
Jul 10, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Guido D BatemaGerard van Koten
Sep 30, 2014·Inorganic Chemistry·Qiaoqiao Teng, Han Vinh Huynh
May 23, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Samantha M McNeillJames D Crowley
Dec 8, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Qiaoqiao Teng, Han Vinh Huynh
Feb 6, 2017·Chemical Reviews·Eduardo Peris

❮ Previous
Next ❯

Citations

May 10, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Roberto M Diaz-RodriguezAlison Thompson
Aug 19, 2020·Inorganic Chemistry·Han Vinh Huynh, Jeroen Thomas Vossen

❮ Previous
Next ❯

Methods Mentioned

BETA
X-ray
NMR
column chromatography

Software Mentioned

HEP2

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Dalton Transactions : an International Journal of Inorganic Chemistry
Tetsuaki FujiharaYasushi Tsuji
Dalton Transactions : an International Journal of Inorganic Chemistry
Jackson M ChitandaStephen R Foley
Chemical Communications : Chem Comm
Bahareh Khalili Najafabadi, John F Corrigan
Chemical Communications : Chem Comm
Mahesh K MahanthappaRobert M Waymouth
© 2022 Meta ULC. All rights reserved