In the heterodinuclear title complex, [GdZn(C(22)H(18)N(2)O(4))(CH(3)COO)(3)], the Zn(II) ion is five-coordinated in a square-pyramidal environment defined by two O atoms and two N atoms from the ligand, forming the square plane, and one acetate O atom serving as the apex, while the Gd(III) ion is nine-coordinated in an approximate mono-capped tetra-gonal-anti-prismatic environment defined by f...

This work provides a detailed mechanism for electron transfer in a heterodinuclear complex designed as a model system in which to study homogeneous molecular photocatalysis. With efficient Born-Oppenheimer molecular dynamics simulations, we show how intermediate, charge-separated states can mediate the electron transfer. We observe how Jahn-Teller distortion effects play out in solution, when t...

In the title heterodinuclear complex, [CuNa(BF(4))(C(8)H(7)O(3))(2)](n), the Cu(II) ion is four-coordinated by four O atoms of two 2-formyl-6-meth-oxy-phenolate ligands, giving rise to a square-planar geometry. The Na(+) ion is six-coordinated by four O atoms from the two ligands and two F atoms of two tetra-fluoridoborate anions. The tetra-fluoridoborate anion links the Na(+) ions, forming a o...

The essential catalytic radical of Class-I ribonucleotide reductase is generated and delivered by protein R2, carrying a dinuclear metal cofactor. A new R2 subclass, R2c, prototyped by the Chlamydia trachomatis protein was recently discovered. This protein carries an oxygen-activating heterodinuclear Mn(II)/Fe(II) metal cofactor and generates a radical-equivalent Mn(IV)/Fe(III) oxidation state ...

Oxidation of phenols by heterodinuclear Cu(III)(μ-O)2Ni(III) complexes containing nucleophilic oxo groups occurs by both proton coupled electron transfer (PCET) and hydrogen atom transfer (HAT) mechanisms; the exact mechanism depends on the nature of the phenol as well as the substitution pattern of the ligand bound to Cu.

This article surveys some new organometallic chemistry with the bicyclic aromatic hydrocarbon naphthalene. Aspects to be covered include the synthesis and properties of mononuclear complexes having q2, q 4 or q6-bonded naphthalene ligands. Examples of complexes of the latter type are CpM(q6-C,,H,) (M = Cr, V), which because of the lability of the arene ligands (naphthalene ligand effect) are va...

Reduction of Zr(IV) metallocenium cations with sodium amalgam (NaHg) produces EPR signals assignable to Zr(III) metallocene complexes. The chloro-bridged heterodinuclear ansa-zirconocenium cation [(SBI)Zr(μ-Cl)2AlMe2](+) (SBI = rac-dimethylsilylbis(1-indenyl)), present in toluene solution as its B(C6F5)4(-) salt, thus gives rise to an EPR signal assignable to the complex (SBI)Zr(III)(μ-Cl)2AlMe...