A general synthetic route to [Cu(X)(NHC)] (NHC = N-heterocyclic carbene, X = Cl, Br, I) complexes† †Electronic supplementary information (ESI) available: Optimisation details and full characterisation data. CCDC 940850–940853. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c3cc45488f Click here for additional data file.

Completing the series of boron-nucleophilic cyanoborates: boryl anions of type NHC–B(CN)2 – † †Dedicated to Prof. Dr Evamarie Hey-Hawkins on the occasion of her 60th birthday. ‡ ‡Electronic supplementary information (ESI) available: Experimental procedures, full characterisation, crystallographic data and computational details. CCDC 1550754 (1B), 1550755 (2B), 1550760 (7B), 1550767 (K-8B), 1550769 (9), 1550740 (1C), 1550756 (2C), 1550774 (7C), 1550768 {[K(18-cr-6)]-8C}, 1550770 (11), 1550771 (13), 1550772 (14), 1550757 (3A), 1550759 (7A), 1550758 (4). For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c7sc02238g Click here for additional data file. Click here for additional data file.

A combined magnetic circular dichroism and density functional theory approach for the elucidation of electronic structure and bonding in three- and four-coordinate iron(ii)–N-heterocyclic carbene complexes† †Electronic supplementary information (ESI) available: Supplemental MCD and Mössbauer data; MO diagrams, TD-DFT, optimized geometry coordinates and X-ray crystallographic details. CCDC 1023546–1023548. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4sc02791d Click here for additional data file. Click here for additional data file.

The combination of iron salts and N-heterocyclic carbene (NHC) ligands is a highly effective combination in catalysis, with observed catalytic activities being highly dependent on the nature of the NHC ligand. Detailed spectroscopic and electronic structure studies have been performed on both three- and four-coordinate iron(II)-NHC complexes using a combined magnetic circular dichroism (MCD) an...

N-Heterocyclic carbene-catalyzed oxidative [3 + 2] annulation of dioxindoles and enals: cross coupling of homoenolate and enolate† †Electronic supplementary information (ESI) available: Experimental procedures and compound characterizations (PDF). CCDC 1041425 (3fb). For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6sc04135c Click here for additional data file. Click here for additional data file.

Beijing National Laboratory for Molecular S Recognition and Function, Institute of Chemi 100190, China. E-mail: [email protected] Marine College, Shandong University at We 264209, China. E-mail: [email protected] University of Chinese Academy of Sciences, † Electronic supplementary information ( and compound characterizations (PDF) crystallographic data in CIF or o 10.1039/c6sc04135c ‡ X.-Y. C...

AuICl-bound N-heterocyclic carbene ligands form MII4(LAuCl)6 integrally gilded cages† †Electronic supplementary information (ESI) available: Experimental procedures, synthesis and characterization data for subcomponents and cages, and optical, microscopy, ESI-MS and NMR data. CCDC 1061936. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5sc03065j Click here for additional data file. Click here for additional data file.

Well-defined coinage metal transfer agents for the synthesis of NHC-based nickel, rhodium and palladium macrocycles† †Electronic supplementary information (ESI) available: 1H and 13C{1H} NMR, and ESI-MS spectra of new complexes. Selected 1H NMR data for transmetallation reactions of 2 and 4. CCDC 1470494–1470497. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6dt01263a Click here for additional data file. Click here for additional data file.

With a view to use as carbene transfer agents, well-defined silver(i) and copper(i) complexes of a macrocyclic NHC-based pincer ligand, bearing a central lutidine donor and a dodecamethylene spacer [CNC-(CH2)12, 1], have been prepared. Although the silver adduct is characterised by X-ray diffraction as a dinuclear species anti-[Ag(μ-1)]2(2+), variable temperature measurements indicate dynamic s...