The ligand exchange reaction between heteroatom doped (Pd, Pt) Au25(2-PET)18 (2-PET = 2-phenylethylthiolate) clusters and enantiopure 1,1′-binaphthyl-2,2′dithiol (BINAS) was monitored in situ using chiral highperformance liquid chromatography (HPLC). During the ligand exchange reactions, replacement of two protecting thiols (2PET) with one new entering BINAS ligand on the cluster surface occurs...

The title complex, dicarbonyl-3κ(2)C-(μ(3)-3,6-dimethyl-3,6-diaza-octane-1,8-dithiol-ato-1:2:3κ(7)S:S,N,N',S':S,S')(μ(2)-3,6-di-methyl-3,6-diaza-octane-1,8-dithiol-ato-1:2κ(5)S,N,N',S':S)-1,2-diiron(II)-3-nickel(0) [Fe(2)Ni(C(8)H(18)N(2)S(2))(2)(CO)(2)], is the second example showing M(μ-SR)(2)Ni(0)(CO)(2) coordination (M = any metal atom). Both Fe(II) ions are five-coordinated in distorted tri...

A class of novel thiol-activated H2S donors has been developed on the basis of the gem-dithiol template. These donors release H2S in the presence of cysteine or GSH in aqueous solutions as well as in cellular environments.

The effect of ligand structure on the cytotoxicity of cationic CdSe/ZnS quantum dots (QDs) was systematically investigated using mono- and bidentate ligands. Monothiol-functionalized QDs are more cytotoxic than dithiol-functionalized QDs.

by T ADASHT HrRAKo, National Leprosarium, Tama Zenshoen. The treatment of leprosy has gradually improved since n umerous anti-leprosy d rugs have been introduced not only sulphone compounds such as D.D.S. but also other types of preparations, thiourea derivatives, and antibiotics. Until ETISUL was recently reported to be effective for tuberculosis and also leprosy, there were no effective drugs...

Reaction of the siderophore analog tris(benzene-o-dithiol) ligand H6-1 with Ti(OPr)4 in methanol leads to the formation of the siderophore analog complex (Ph4As)2[Ti(1)3] exhibiting exclusively thiolato coordination to the metal center.

Charge photogeneration yields and energetics are determined for a low band gap co-polymer, PCPDTBT blended with PC(70)BM; the increase in charge photogeneration with dithiol is correlated with an increase in the free energy of charge separation.

We report electronic transport measurements of single-molecule transistor devices incorporating bipyridyl-dinitro oligophenylene-ethynylene dithiol (BPDN-DT), a molecule known to exhibit conductance switching in other measurement configurations. We observe hysteretic conductance switching in 8% of devices with measurable currents and find that dependence of the switching properties on gate volt...

The asymmetric unit of the title compound, C(12)H(9)NO(2)S(4), contains one half-mol-ecule with the N, two S amd four C atoms lying on a mirror plane. The mol-ecule exhibits a V-shaped conformation, with a dihedral angle of 87.00 (7)° between the benzene and dithiol-opyrrole rings. The methyl group was treated as rotationally disordered between two orientations in a 1:1 ratio. In the crystal, w...

A simple, high yield, two-step synthesis yields a porphyrin dimer linked by a flexible dithiol tether that preferentially binds fullerene C(70) over C(60) in toluene solution. The complex forms stable aggregates when cast on glass.