Phenylseleninate-Connected Telluroxane Clusters.

Hydrolysis of PhTeI in the presence of sodium phenylseleninate and M ions (M = Y, Nd, Ce) gives well-defined, bowl-shaped telluroxane clusters. Each of the two half-spheres of the compositions [(PhTe){ML}O] ({ML} = {Y(NO)(HO)} (), {Nd(NO)(HO)} (), or {Ce(NO)} ()) are connected by two (compound ) or four (compounds and ) PhSeO bridges. The resulting chalcogenoxane spheres have internal volumes of approximately 1500 Å.

Synthesis, crystal structure and Hirshfeld analysis of -bis-(2-{1-[(6,)-3,5,5,6,8,8-hexa-methyl-5,6,7,8-tetra-hydronaphthalen-2-yl]ethyl-idene}--methyl-hydrazinecarbo-thio-amidato-κ,)palladium(II) ethanol monosolvate.

The reaction between the (,)-fixolide 4-methyl-thio-semicarbazone and Pd chloride yielded the title compound, [Pd(CHNS)]·CHO {common name: -bis-[(,)-fixolide 4-methyl-thio-semicarbazonato-κ ]palladium(II) ethanol monosolvate}. The asymmetric unit of the title compound consists of one bis-thio-semicarbazonato Pd complex and one ethanol solvent mol-ecule. The thio-semicarbazononato ligands act as metal chelators with a configuration in a distorted square-planar geometry.

2-{1-[(6,)-3,5,5,6,8,8-Hexamethyl-5,6,7,8-tetra-hydro-naphthalen-2-yl]ethyl-idene}--methyl-hydrazinecarbo-thioamide.

The reaction between a racemic mixture of (,)-fixolide and 4-methyl-thio-semicarbazide in ethanol with a 1:1 stoichiometric ratio and catalysed with HCl, yielded the title compound, CHNS [common name: (,)-fixolide 4-methyl-thio-semicarbazone]. There is one crystallographically independent mol-ecule in the asymmetric unit, which is disordered over the aliphatic ring [site-occupancy ratio = 0.667 (13):0.

Synthesis, crystal structure and Hirshfeld analysis of -bis-{(2)--phenyl-2-[(2)-3-phenyl-2-propen-1-yl-idene]hydrazinecarbo-thio-amidato-κ,}palladium(II).

The reaction of (2)--phenyl-2-[(2)-3-phenyl-2-propen-1-yl-idene]hydra-zine-carbo-thio-amide (common name: cinnamaldehyde-4-phenyl-thio-semi-carbazone) deprotonated with NaOH in ethanol with an ethano-lic suspension of Pd chloride in a 2:1 molar ratio yielded the title compound, [Pd(CHNS)]. The anionic ligands act as metal chelators, κ -donors, forming five-membered rings with a -configuration. The Pd ion is fourfold coordinated in a slightly distorted square-planar geometry.

Novel organically linked Zn hydrogenselenite coordination polymers: synthesis, characterization, and efficient TiO photosensitization for enhanced photocatalytic hydrogen production.

This study focused on the solvothermal synthesis, characterization, and photocatalytic activities of two novel coordination polymers, namely [Zn(μ-HSeO)(bipy)] (1) and [Zn(μ-HSeO)(phen)] (2). These compounds represent the first organically linked Zn hydrogenselenite coordination polymers. The synthesis of compounds 1 and 2 involved the addition of 2,2'-bipyridine and 1,10-phenanthroline, respectively, to SeO and ZnO in methanol as the solvent.

Vermicomposting of cow manure: Effect of time on earthworm biomass and chemical, physical, and biological properties of vermicompost.

Vermicomposting is a biological process for efficient cattle manure treatment, but the vermicomposting time determines the quality of the vermicompost. The objective of this study was to evaluate the effect of cattle manure vermicomposting time on earthworm biomass and the changes in physical, chemical, and biological in properties of the vermicompost. The cattle manure was inoculated with Eisenia andrei earthworms and conducted vermicomposting for 0, 15, 30, 45, 60, and 120 days.

One- and two-dimensional Pb compounds resulting from reaction of PbBr and Pb(SCN) with pyrimidine-2-thione.

Pyrimidine-2-thione (HSpym) reacts with lead(II) thiocyanate and lead(II) bromide in N,N-dimethylformamide (DMF) to form poly[(μ-isothiocyanato-κN:S)(μ-pyrimidine-2-thiolato-κN,S:S:S:S,N)lead(II)], [Pb(CHNS)(NCS)] or [Pb(Spym)(NCS)], (I), and the polymeric one-dimensional (1D) compound catena-poly[[μ-bromido-di-μ-bromido-(μ-pyrimidine-2-thiolato-κN,S:S)(μ-pyrimidine-2-thione-κN,S:S)dilead(II)] N,N-dimethylformamide monosolvate], {[PbBr(CHNS)(CHNS)]·CHNO} or {[PbBr(Spym)(HSpym)]·DMF}, (IIa), respectively. Poly[μ-bromido-di-μ-bromido-(μ-pyrimidine-2-thiolato-κN,S:S)(μ-pyrimidine-2-thione-κN,S:S)dilead(II)], [PbBr(CHNS)(CHNS)] or [PbBr(Spym)(HSpym)], (IIb), could be obtained as a mixture with (IIa) when using a lesser amount of solvent. In the crystal structures of the pseudohalide/halide Pb stable compounds, coordination of anionic and neutral HSpym has been observed.

Synthesis, crystal structure and Hirshfeld analysis of a crystalline compound comprising a 1/1 mixture of 1-[(1,4)- and 1-[(1,4)-1,7,7-trimethyl-2-oxobi-cyclo[2.2.1]heptan-3-yl-idene]hydrazinecarbo-thio-amide.

The equimolar reaction between a racemic mixture of ()- and ()-camphorquinone with thio-semicarbazide yielded the title compound, CHNOS [common name: ()- and ()-camphor thio-semicarbazone], which maintains the chirality of the methyl-ated chiral carbon atoms and crystallizes in the centrosymmetric space group 2/. There are two mol-ecules in general positions in the asymmetric unit, one of them being the (1)-camphor thio-semicarbazone isomer and the second the (1)- isomer. In the crystal, the mol-ecular units are linked by C-H⋯S, N-H⋯O and N-H⋯S inter-actions, building a tape-like structure parallel to the (01) plane, generating (7) and (8) graph-set motifs for the H⋯S inter-actions.

Neutral 4-phenyl-1-[phenyl(pyridin-2-yl)methylidene]semicarbazide and its salt forms with inorganic anions.

Semicarbazones can exist in two tautomeric forms. In the solid state, they are found in the keto form. This work presents the synthesis, structures and spectroscopic characterization (IR and NMR spectroscopy) of four such compounds, namely the neutral molecule 4-phenyl-1-[phenyl(pyridin-2-yl)methylidene]semicarbazide, CHNO, (I), abbreviated as HBzPyS, and three different hydrated salts, namely the chloride dihydrate, CHNO·Cl·2HO, (II), the nitrate dihydrate, CHNO·NO·2HO, (III), and the thiocyanate 2.