Facile synthesis of silver(i)-carbene complexes. useful carbene transfer agents

Contribution of Electrochemistry to Organometallic Catalysis

As functional biomimics of the hydrogen-producing capability of the dinuclear active site in [Fe]H2ase, the FeIFeI organometallic complexes, (μ-pdt)[Fe(CO)2PTA]2, 1-PTA2, (pdt = SCH2CH2CH2S; PTA = 1,3,5-triaza-7-phosphaadamantane), and (μ-pdt)[Fe(CO)3][Fe(CO)2PTA], 1-PTA, were synthesized and fully characterized. For comparison to the hydrophobic (μ-pdt)[Fe(CO)2(PMe3)]2 and {(μ-H)(μ-pdt)[Fe(CO)2(PMe3)]2}+ analogues, electrochemical responses of 1-PTA2 and 1-(PTA·H+)2 were recorded in acetonitrile and in acetonitrile/water mixtures in the absence and presence of acetic acid. The production of H2 and the dependence of current on acid concentration indicated that the complexes were solution electrocatalysts that decreased over-voltage for H+ reduction from HOAc in CH3CN by up to 600 mV. The most effective electrocatalyst is the asymmetric 1-PTA species, which promotes H2 formation from HOAc (pKa in CH3CN = 22.6) at −1.4 V in CH3CN/H2O mixtures at the Fe0FeI redox level. Functionalization of the PTA ligand vi...

The Hydrophilic Phosphatriazaadamantane Ligand in the Development of H2 Production Electrocatalysts: Iron Hydrogenase Model Complexes

Cd(II) and Cu(II) complexes of polydentate Schiff base ligands: synthesis, characterization, properties and biological activity

Synthesis, spectral characterization, in vitro antibacterial, antifungal and cytotoxic activities of Co(II), Ni(II) and Cu(II) complexes with 1,2,4-triazole Schiff bases.

W.J. Geary

Papers

The use of conductivity measurements in organic solvents for the characterisation of coordination compounds