Understanding and controlling electron transport through functional molecules are of primary importance to the development of molecular scale devices. In this work, the single molecule resistances of meso-to-meso ethyne-bridged (porphinato)zinc(II) structures (PZnn compounds), connected to gold electrodes via (4′-thiophenyl)ethynyl termini, are determined using scanning tunneling microscopy-bas...

In the title compound, (C(8)H(15)N(2))[Ni(C(4)N(2)S(2))(2)], the Ni(III) atom is coordinated by four S atoms of two maleonitrile-dithiol-ate ligands and exhibits a distorted square-planar geometry. In the crystal, the cations and anions are connected alternately by weak inter-molecular C-H⋯N hydrogen bonds, forming a zigzag chain along [201].

Understanding and controlling electron transport through functional molecules are of primary importance to the development of molecular scale devices. In this work, the single molecule resistances of meso-to-meso ethyne-bridged (porphinato)zinc(II) structures (PZn(n) compounds), connected to gold electrodes via (4'-thiophenyl)ethynyl termini, are determined using scanning tunneling microscopy-b...

Inorganic trivalent arsenicals are vicinal thiol-reacting agents, and dithiothreitol (DTT) is a well-known dithiol agent. Interestingly, both decreasing and increasing effects of DTT on arsenic trioxide-induced apoptosis have been reported. We now provide data to show that, at high concentrations, DTT, dimercaptosuccinic acid (DMSA), and dimercaptopropanesulfonic acid (DMPS) decreased arsenic t...

While thioacetate-terminated oligo(phenylene vinylene)s (OPVs) have been synthesized and employed in applications involving the formation of metal–molecule–metal junctions, the synthesis and application of potentially more versatile α,ω-dithiol OPVs have not previously been described. Here, a thiomethyl-precursor route to the synthesis of α,ω-dithiol OPVs is reported and their ability to form w...

The asymmetric unit of the title complex, (C(6)H(13)N(4))(2)[Ni(C(4)N(2)S(2))(2)], comprises one 1-azonia-3,5,7-triaza-tricyclo-[3.3.1.1(3,7)]decane cation and one half of an [Ni(mnt)(2)](2-) (mnt(2-) is maleonitrile-dithiol-ate or 1,2-dicyano-ethene-1,2-dithiol-ate) dianion. The Ni(2+) ion is located on a center of inversion and is coordinated by four S atoms from two mnt(2-) ligands in a squa...

In the title compound, (C(11)H(18)N(4))[Ni(C(4)N(2)S(2))(2)], the asymmetric contains one half-complex, with the cation placed on a twofold axis and the anion located on an inversion center. The Ni(II) ion in the anion is coordinated by four S atoms of two maleonitrile-dithiol-ate ligands, and exhibits the expected square-planar coordination geometry.

Recent experiments have shown that the current-voltage characteristics (I-V) of BPDN-DT (bipyridyl-dinitro oligophenylene-ethynylene dithiol) can be switched in a very controlled manner between "on" and "off" traces by applying a pulse in a bias voltage, V(bias). Here, the polaron formation energies are calculated to check a frequently held belief, namely, that the polaron formation can explain...

l,2-Dithiol-3-thiones, reported constituents of cruciferous vegetables, are five-membered cyclic sulfur-containing compounds with antioxidant, chemotherapeutic, and chemoprotective activities. The effects of dietary administration of a substituted l,2-dithiol-3-thione, oltipraz |5-( 2-pyrazinyl)-4-inethyl-l,2-dithiol-3-thione|, a potent antischistosomal agent, on »fiatimi! BI (AFBi) metabolism...

The title compound, C(20)H(24)N(2)O(2)S(2), consists of a tetra-cyclic ring system containing an azocino skeleton with ethyl, dithiol-ane and methoxy-methyl groups as substituents. The benzene and five-membered rings are nearly coplanar, with a dihedral angle of 2.78 (11)°. The dithiol-ane ring adopts an envelope conformation. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link ...