Electrochemical study of a nonheme Fe(ii) complex in the presence of dioxygen. Insights into the reductive activation of O2 at Fe(ii) centers† †Electronic supplementary information (ESI) available: Detailed experimental procedures; UV-visible, EPR and electrochemical characterizations of intermediates 2, 3 and 4, generated with chemical oxidants. Detailed methodology for the simulation of the CVs of intermediates 2–4, and for the reaction between 1 and O2. See DOI: 10.1039/c4sc01891e Click here for additional data file.

A high-spin square-planar Fe(ii) complex stabilized by a trianionic pincer-type ligand and conclusive evidence for retention of geometry and spin state in solution† †Electronic supplementary information (ESI) available: Detailed experimental conditions, elemental analysis, 1H-NMR spectroscopy, magnetic susceptibility data and fitting, Mössbauer spectroscopy, high-field EPR spectroscopy of 2, and DFT calculations. CCDC 1006581. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4sc02634a Click here for additional data file. Click here for additional data file.

Supporting Information for A High-Spin Square-Planar Fe(II) Complex Stabilized by a Trianionic Pincer-Type Ligand and Conclusive Evidence for Retention of Geometry and Spin State in Solution Matias E. Pascualini, Natali V. Di Russo, Annaliese E. Thuijs, Andrew Ozarowski, Sebastian A. Stoian, Khalil A. Abboud, George Christou, and Adam S. Veige * University of Florida, Department of Chemistry, C...

Tandem redox mediator/Ni(ii) trihalide complex photocycle for hydrogen evolution from HCl† †Electronic supplementary information (ESI) available: Experimental procedures and time-dependent photochemical data; transient absorption spectroscopy and electrochemical experimental details. CCDC 992218–992221. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4sc02357a Click here for additional data file. Click here for additional data file.

Mechanistic insights into hydroacylation with non-chelating aldehydes† †Electronic supplementary information (ESI) available: Materials and methods, reaction procedures, characterization data. CCDC 1012849. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4sc02026j Click here for additional data file.

The combination of a small-bite-angle diphosphine bis(dicyclohexylphosphino)methane (dcpm) and [Rh(cod)OMe]2 catalyses the hydroacylation of 2-vinylphenols with a wide range of non-chelating aldehydes. Here we present a detailed experimental study that elucidates the factors contributing to the broad aldehyde scope and high reactivity. A variety of catalytically relevant intermediates were isol...

Near-IR absorbing donor–acceptor ligand-to-ligand charge-transfer complexes of nickel(ii)† †Electronic supplementary information (ESI) available: Complete experimental procedures, 1H, 13C and VT NMR data, complete electrochemical and solvatochromic analysis, and frontier orbital energies and atomic positions from DFT calculations. CCDC 1414822–1414824. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5sc02703a Click here for additional data file. Click here for additional data file.

A heterobimetallic complex featuring a Ti–Co multiple bond and its application to the reductive coupling of ketones to alkenes† †Electronic supplementary information (ESI) available: Experimental procedures, additional spectroscopic data for 1–4, and computational details of 2 and 3. CCDC 1037714–1037716. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4sc03772c Click here for additional data file. Click here for additional data file.

To explore metal–metal multiple bonds between first row transition metals, Ti/Co complexes supported by two phosphinoamide ligands have been synthesized and characterized. The Ti metalloligand Cl2Ti(XylNP Pr2)2 (1) was treated with CoI2 under reducing conditions, permitting isolation of the Ti/ Co complex [(m-Cl)Ti(XylNPPr2)2CoI]2 (2). One electron reduction of complex 2 affords ClTi(XylNPPr2)2...