Palladium nanoparticles have been electrochemically supported on zirconium oxide nanostructured powders and all the nanomaterials have been characterized by several analytical techniques. The Pd/ZrO(2) nanocatalyst is demonstrated to be a very efficient catalyst in Heck, Ullmann, and Suzuki reactions of aryl halides in water. The catalyst efficiency is attributed to the stabilization of Pd nano...

The reaction between tetra-ethyl-ammonium hydroxide and 2,2'-dithio-benzoic acid yields the title compound, 3C(8)H(20)N·H(C(6)H(4)O(5)S(2))(2) (3-), the trianion of which comprises two 2-(sulfato-sulfan-yl)benzoate dianions linked across a center of inversion by an acid H atom. One of the cations is disordered about another center of inversion.

The first metal complexes comprising amidino-guanidinate ligands have been prepared and structurally characterized, namely bis-[μ-N,N',N'',N'''-tetraisopropyl-1-(1-butyl-amidinato)guanidinato-κ3N1,N2:N2]bis-[(tetra-hydro-furan)lithium], [Li2(C18H37N4)2(C4H8O)2], (2), and [bis-(tetra-hydro-furan)-lithium]-di-μ-chlorido-{(N,N'-di-cyclo-hexyl-1-butyl-amidinato-κ2N1,N2)[N,N',N'',N'''-tetra-cyclo-he...

We have determined the crystal structures of two deca-chloro-cyclo-penta-silanes, namely bis-(tetra-n-butyl-ammonium) dichloride deca-chloro-cyclo-penta-silane di-chloro-methane disolvate, 2C16H36N+·2Cl-·Si5Cl10·2CH2Cl2, (I), and bis-(tetra-ethyl-ammonium) dichloride deca-chloro-cyclo-penta-silane di-chloro-methane disolvate, 2C8H20N+·2Cl-·Si5Cl10·2CH2Cl2, (II), both of which crystallize with d...

Two coordination compounds containing tetra-n-butyl-ammonium cations and bis-tfd-chelated molybdenum(IV) [tfd2- = S2C2(CF3)22-] and oxalate (ox2-, C2O42-) in complex anions are reported, namely bis-(tetra-n-butyl-ammonium) bis-(1,1,1,4,4,4-hexa-fluoro-but-2-ene-2,3-di-thiol-ato)oxalatomolybdate(IV)-chloro-form-oxalic acid (1/1/1), (C16H36N)2[Mo(C4F6S2)2(C2O4)]·CHCl3·C2H2O4 or (N n Bu4)2[Mo(tfd)...

The asymmetric unit of the title compound, (C6H18N2)[ZnCl4], consists of one tetra-chlorido-zincate anion and two half-N,N,N'N'-tetra-methyl-ethylenedi-ammonium cations. Each of the two di-ammonium cations is located about an inversion center and one of them is disordered over two sets of sites in a 0.780 (17):0.220 (17) ratio. The Zn(II) atom has a slightly distorted tetra-hedral coordination ...

In the title salt, (C(16)H(36)N)[Fe(C(3)H(9)OSi)(4)], the cation contains a central N atom bonded to four n-butyl alkyl groups in a tetra-hedral arrangement, while the anion contains a central Fe(III) atom tetra-hedrally coordinated by four trimethyl-silanolate ligands.

Studies on the synthesis of a hydrothermally prepared 33% porosity xTiO2•(1-x)SiO 2 (x=0.0001-0.04) catalyst with different tetra-N- propylammonium hydroxide/tetraethylorthosilicate molar ratios show that tetra -N-propylammonium ratio = 0.5 provides maximum selectivity butanone-2 formation. The analysis data use synthesized in presence containing xTiO •(1-x)SiO obtained by hydrothermal reaction...