An unusual ionic manganese model complex [Mn(bpy)3](+)[(CO)3Mn(μ-SPh)3Mn(CO)3](-)(bpy: 2,2'-bipyridine) has been synthesized, which bears some structural resemblance to the active site of [FeFe] hydrogenase. An overpotential of 0.61 V has been determined for the electrocatalytic proton reduction using this complex in CH3CN with CF3COOH as the proton source. A turnover frequency of 44,600 s(-1) is achieved at high scan rates and in the presence of a large amount of acid.

The dithiolate-bridged diiron hexacarbonyl complex Na2[(μ-SCH2CH2COO)Fe(CO)3]2 as a water-soluble photoCORM

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Hydrogen gas is the most promising carbon-free energy carrier although its on-demand generation remains a formidable challenge.

CpFe(CO)2 complexes kill cancer cells while leaving normal cells unharmed.