The influence of the added nitrate salts (Ca(NO3)2 and NaNO3) on the CaO-activated ground granulated blast-furnace slag (GGBFS) system was investigated. Both salts significantly increased the early strength of the binder, and the Ca(NO3)2 maintained this tendency until 28 days of curing, whereas...

Latest development in the concentrating solar power (CSP) tower technology for energy production and storage intends to find a heat transfer and storage material that provides stability at elevated temperatures. The binary nitrate salt mixture Solar Salt (sodium nitrate, 60 wt.% and potassium ni...

Preparation of “NaREF4” compounds (RE = La-Lu, Y) from rare earth nitrates dissolved in molten NaNO3 has been studied at 350°C. Two-fold excess of sodium fluoride (NaF) was used as fluorinating agent. Hexagonal NaREF4 (RE = Pr-Lu, Y) phases isotypic with β-NaYF4 have been prepared. A mixture...

We demonstrate the coating of graphene onto the silica optical microfiber sensor for improving sodium nitrate detection at room temperature. The graphene obtained from graphene- polylactic acid filament was coated onto the microfiber based on drop casting technique. In the proposed sensor, the g...

A novel quaternary ammonium (BQD) with good inhibitive performance is separated from the synthesis of N-Benzylquinolinium Chloride (BQC). The formula of BQD was C32H23N2Cl and its structure is characterized by NMR, LC-HRMS, FT-IR. The formation mechanism of BQD is proposed. The corrosive inhibit...

Benzene formation was found to be dominated by stepwise radical dehydrogenation of cyclohexane in a stoichiometric flat flame of cyclohexane/O2/32.5% Ar, 30.00 Torr pressure, and 35.0 cm s−1 feed velocity. This route, involving H-abstractions and β-scissions, is in contrast to conventional prop...

Heating of the cyclohexadienyl ruthenium complex [(η5-C6H7)Ru(MeCN)3]+ (1) with arenes results in replacement of acetonitrile ligands giving complexes [(η5-C6H7)Ru(arene)]+ (arene = toluene, o-xylene, hexamethylbenzene, p-toluidine, benzo-15-crown-5, ethyl ester of N-acetylphenylalanine) in 53...

The complex [Pt(Cl3terpy)Cl]PF6 has been prepared from cis-[Pt(dimethylsulfoxide)2Cl2] and 4,4′,4″-trichloro-2,2′:6′,2″-terpyridine (Cl3terpy). The complex [Pt(Clterpy)Cl]Cl has been prepared from cis-[Pt(1,5-cyclooctadiene)Cl2] and 4′-chloro-2,2′:6′,2″-terpyridine (Clterpy). Complexes ...

Several new Pt(II) and Pd(II) compounds of the type LMX2 are reported where L can be one of three new organosulfur molecules which contain the tetrathioethylene unit. Those are: 2-(1,3-dithiolan-2-ylidene)-1,3-dithiepin (1), 2-(1,5-dihydro-2,4-benzodithiepin-3-ylidene)-1,3-dithiepin (2) and 2-[b...

Reactions of a sterically protected 1,2-di(2-thienyl)-3,4-bis[(2,4,6-tri-t-butylphenyl)phosphinidene]cyclobutene were investigated. The diphosphinidenecyclobutene reacted with elemental sulfur or transition metal reagents to form a thiaphosphirane derivative or the corresponding transition metal...

Kinetic studies on the stepwise phosphine sulfide formation reaction of the five-coordinate trigonal-bipyramidal Pd(II) complexes with the tripodal tetradentate phosphine ligand, [PdCl(pp3)]Cl and [Pd(4-Cltp)(pp3)](BF4) (pp3 = tris[2-(diphenylphosphino)ethyl]phosphine; 4-Cltp = 4-chlorothiopheno...

Platinum complexes with a methoxy-amino phosphine or an ethylene-linked nitrogen-containing bis(phosphine) ligand have been synthesized and fully characterized by spectroscopic as well as crystallographic studies. The first ligand is bound to the metal in a P,N-bidentate coordination mode and wi...

New compounds containing the 1,1′-bis(dialkylaminophosphino)ferrocene ligands 1,1′-bis(dimethylaminophosphino)ferrocene (dmapf) and 1,1′-bis(diethylaminophosphino)ferrocene (deapf) were prepared and characterized by NMR. The oxidative electrochemistries of these compounds were examined in met...

A new phosphorescent platinum(II)-pyridyltriazolate complex, bis[3,5-bis(2-pyridyl)-1,2,4-triazolato]platinum(II), Pt(ptp)2, was synthesized and incorporated into organic light emitting diodes for evaluation as electrophosphorescent dopant. Single crystal X-ray diffraction shows that the complex...

A series of bis(nitrile) complexes cis- and trans-Cl2Pt(NCR)2(R=C6H5,p-CH3C6H4, p-CF3C6H4, o-CH3C6H4,CH3, CH3CH2, CH3CH2CH2, (CH3)2CH, (CH3)3C) has been prepared by either one of the two methods, K2PtCl4/H2O/ RCN(excess) or PtCl2/RCN(neat), both of which usually yield the nitrile complexes as a ...

Under 254 nm irradiation [Pt(Et3P)2Cl2] in chloroform is converted to H2PtCl6. Absorption of light by both the metal complex and the solvent contributes to the first of this process, suggested to form HPt(Et3P)Cl3. The rate law for the reaction can be expressed as afR + bfRfSt, bfRfst, where fR ...

Dithia[3.3]metadipyridinophane was prepared as a neutral cyclophane type ligand and its structural properties were investigated. Complexation of the ligand with bis(benzonitrile)palladium(II) dichloride or bis(benzonitrile)platinum(II) dichloride gave dichloropalladium(II)(dithia[3.3]dipyridinop...

The synthesis of new platinum bipy (bipy = 2,2′-bipyridyl) complexes containing phenoxide ligands is reported, together with kinetic studies of their oxidative addition reactions with MeI to produce phenoxo platinum(IV) complexes. Complexes of the form [(bipy)Pt(OC6H4-4-X)2] (X = OCH3, CH3, H, ...

Dichlorobis(dimethylphenylphosphine)di-μ-chlorodiplatinum(II) was found to be an effective catalyst for the hydrosilylation of alkyl phenyl ketones with methyldichlorosilane to give the corresponding silyl ethers of 1-phenylalkanols. In the case of dialkyl ketones, the reaction was accompanied ...

Optically active ligands of type Ph2PNHR (R = (R)-CHCH3Ph, (a); (R)-CHCH3Cy, (b); (R)-CHCH3Naph, (c)) and PhP(NHR)2 (R = (R)-CHCH3Ph, (d); (R)-CHCH3Cy, (e)) with a stereogenic carbon atom in the R substituent were synthesized. Reaction with [PdCl2(COD)2] produced [PdCl2P2] (1) (P = PhP(NHCHCH3Ph...