The title dinuclear copper(I) complex, {[Cu(2)(C(2)H(3)N)(C(12)H(10)N(2))(C(25)H(22)P(2))(2)](BF(4))(2)}(n), contains 1,2-di-4-pyridyl-ethene, bis-(diphenyl-phosphino)methane and acetonitrile ligands. The two Cu atoms, one with an N(2)P(2) ligand set and the other with an NP(2) ligand set, are bridged by two bis-(diphenyl-phosphino)methane ligands, forming an eight-membered ring.

In the title complex, [RhCl(C(44)H(32)OP(2))]·CH(3)OH, the Rh(I) ion is coordinated by a naphthyl group of a partially oxidized 2,2'-bis-(diphenyl-phosphan-yl)-1,1'-binaphthyl (BINAP) ligand in a η(4) mode, one P atom of the diphenyl-phosphanyl group and one Cl atom. The P=O group does not inter-act with the Rh(I) ion but accepts an O-H⋯O hydrogen bond from the methanol solvent mol-ecule.

The title bimetallic compound, [PtCl(2){Co(C(17)H(14)P)(2)}]PF(6), was obtained by reaction of 1,1'-bis-(diphenyl-phosphino)cobalto-cenium hexa-fluorido-phosphate with bis-(acetonitrile)di-chloridoplatinum. The Pt(II) ion is four-coordinated in a slightly distorted square-planar environment by two P atoms of the 1,1'-bis-(diphenyl-phosphino)cobaltocenium moiety and two Cl atoms. In the crystal ...

In the title compound, [Cu(C(25)H(22)P(2)S)(2)]PF(6), the Cu(I) atom, lying on a twofold rotation axis, adopts a distorted tetra-hedral geometry. The (diphenyl-phosphanylmeth-yl)diphenyl-phos-phane sulfide ligand coordinates to the Cu(I) atom through one S and one P atom, forming a stable five-membered chelate ring. The P atom of the PF(6) (-) anion also lies on a twofold rotation axis.

Bifunctional thiourea catalyzes the enantioselective Michael addition reaction of diphenyl phosphite to nitroalkenes. This methodology provides a facile access to enantiomerically enriched β-nitrophosphonates, precursors for the preparation of synthetically and biologically useful β-aminophosphonic acids. DFT level of computational calculations invoke the attack of the diphenyl phosphite to the...

The title compound, C(21)H(22)NO(3)P, was synthesized from the reaction of (C(6)H(5)O)(2)P(O)(Cl) and S-1-phenyl-propyl-amine (1:2 mole ratio) at 273 K, followed by removal of the S-1-phenyl-propyl-amine hydro-chloride by-product by dissolving in H(2)O. The P atom is located in a distorted tetra-hedral environment. The bond angles at the P atom vary from 99.51 (12) to 116.68 (12)°. The sp(2) ch...

Recently, a novel electron spin resonance (ESR) spin-trapping agent, 2-(diphenylphosphinoyl)-2-methyl-3,4-dihydro-2H-pyrrole N-oxide (Diphenyl-PMPO), was synthesized. Because it had some advantages in stability and reactivity over conventional spin-trapping agents, we applied it to the ESR analyses of superoxide anion radical scavenging activity (SOSA) of superoxide dismutase (SOD) and of well-...

The title complex, [Au(2)(C(17)H(11)N)(2)(C(12)H(10)P)]ClO(4)·C(2)H(3)N, contains two Au(III) atoms bridged by a diphenyl-phosphanide ligand. Each Au atom is in a square-planar environment coordinated by diphenyl-phosphanide and 2,6-diphenyl-pyridine ligands. There are weak π-π stacking inter-actions between neighbouring mol-ecules (the inter-planar separations between two neighbouring dpp unit...

At least two different classes of ADP binding sites on chloroplast coupling factor are de­ scribed in the literature. High-affinity sites are assumed to entail regulatory functions while low-affinity sites are involved in catalysis. Diphenyl ether herbicides, acting as energy transfer inhibitors, interfere with nucleotide ex­ change on both categories of ADP binding sites. Their inhibitory pote...

Screening of estrogenic activity on dichloro diphenyl trichloroethane (DDT), dichloro diphenyl dichloro ethylene (DDE), dieldrin, heptachlor, aldrin, chlordane, lindane, polybrominated diphenyl ethers (PBDE) and parabens was compared using Organization for Economic Cooperation and Development (OECD) test guideline 455 (TG455). The estrogenic activity of DDT was 58,000-fold (PC50, 1.67 × 10(-6) ...