Exclusive measurements of twoand three-body events were performed for the system Sn+ ' Mo at 19.1 MeV/nucleon. Most ternary events are consistent with sequential processes in which one of the two deep-inelastic fragments fissions. For such events large diA'erences are found between the fission probabilities of projectilelike and targetlike fragments of a given mass, this probability being large...

In an effort to design dinuclear PtII compounds that maintain the target (DNA) binding profile of the trans-oriented dinuclear bifunctional PtII complexes containing aliphatic linker chains but are less susceptible to metabolic decomposition, the new, longchain dinuclear PtII complexes—[{trans-PtCl(dien)}2-μ-(CH2)n] 2+ (n = 7,10,12, dien = diethylenetriamine)—were synthesized. The toxicity of t...

The bacterioferritin (BFR) of Escherichia coli takes up iron in the ferrous form and stores it within its central cavity as a hydrated ferric oxide mineral. The mechanism by which oxidation of iron (II) occurs in BFR is largely unknown, but previous studies indicated that there is ferroxidase activity associated with a site capable of forming a dinuclear-iron centre within each subunit [Le Brun...

The Sn atoms in the dinuclear title compound, [Sn(2)Br(2)(C(7)H(7))(4)(OH)(2)], exist in distorted trigonal-bipyramidal BrSnC(2)O(2) coordination geometries. Each of the two independent dinuclear mol-ecules comprising the asymmetric unit is disposed about a center of inversion. In the crystal, molecules are linked by an O-H⋯ hydrogen bond.

The diastereoselective formation of a meso-dinuclear Ru(ii) complex of a novel bis-bidentate ligand is reported along with its electrochemical and photophysical properties. The design of the ligand, with its parallel coordination vectors, induces a diastereoselectivity of 1 : 13 : 1 [ΛΛ : (ΛΔ or ΔΛ) : ΔΔ] for the dinuclear complex.

The LCuBr-catalyzed C-H imidation of arenes by N-fluorobenzenesulfonimide (NFSI), previously reported by us, utilizes an inexpensive catalyst and is applicable to a broad scope of complex arenes. The computational and experimental study reported here shows that the mechanism of the reaction is comprised of two parts: (1) generation of the active dinuclear CuII-CuII catalyst; and (2) the catalyt...

Two structurally characterized dinuclear valence tautomers are described. Cobalt ions are bridged by p- and m-phenylene units connected to 2,2'-bipyridines. X-ray crystal structures show that the molecules are in the [(Co(III))(Co(III))] forms at ca. 125 K, while spectroscopic studies show that both molecules can achieve the [(Co(II))(Co(II))] form above 400 K and confirm the [(Co(III))(Co(III)...

Each Cu atom in the dinuclear centrosymmetric title complex, [Cu(2)Br(2)(C(14)H(17)N(3))(2)](ClO(4))(2), is ligated in a distorted square-pyramidal geometry (τ = 0.31) by a tridentate bis-[2-(2-pyrid-yl)eth-yl]amine ligand, and by two bridging Br atoms. In addition, the dinuclear species is stabilized by two hydrogen-bonded perchlorate anions.

A novel eight-coordinated dinuclear Ca(II) complex, [Ca2(L)2(H2O)10]·H2O (L = 4-formylbenzene-1,3-disulfonate-3-pyridinecarboxylic hydrazone) (1), was synthesized by the reaction of 3-pyridinecarboxylic hydrazide, disodium 4-formylbenzene-1,3-disulfonate, and Ca(ClO4)2·4H2O in ethanol-water solution (v:v = 3:1) at 50 ◦C. Complex 1 was characterized by elemental analysis, IR, 1H-NMR, 13C-NMR, an...

Convenient methods to prepare solvated rhenium oxochlorides are described; these compounds should serve as useful starting materials for rhenium chemistry. Treatment of perrhenic acid, HReO(4), with chlorotrimethylsilane or with thionyl chloride, followed by addition of tetrahydrofuran, forms the new oxochloride complexes ReO(3)Cl(THF)(2) and ReOCl(4)(THF), respectively. Small amounts of two di...