387 Result(s)
-
Article
Reaction of E-1,4-poly(2-triethylsilyl-1,3-butadiene) with iodine monochloride
Addition of iodine monochloride to E-1,4-poly(2-triethylsilyl-1,3-butadiene) (I) followed by treatment with potassium fluoride dihydrate yields a copolymer comprised of E and Z-1,4-(2-iodo-1,3-butadiene) (E an...
-
Article
Theoretical calculations of95Mo-NMR chemical shifts for compounds [MoO4−n S n ]2−
Theoretical calculation of95Mo-NMR chemical shifts for [MoO4−n S n ]2− (n=0−4) compounds is reported here for the first time on the basis of Fenske-Hall method and Sum-Over-State...
-
Article
Determination of dynamical parameters of a CO2 laser by fitting theoretical equation with experimental data
We develop an experimental process to measure the dynamical parameters for a single mode CO2 laser which is independent from usual empirical estimation.
-
Article
Synthesis and magnetism of 6-nitrobenzimidazolate and imidazolate-bridged copper(II) complexes
Four new trinuclear copper(II) complexes, [Cu(phen)-(NBzIm)] (ClO4) (1), [Cu(bpy)(NBzIm)](ClO4) (2), [Cu-(Me2-bpy)(NBzIm)](Ac)·1/2H2O (3) and [Cu(Me2-bpy)-(Im)](ClO4)·1/2H2O (4) (phen = 1, 10-phenanthroline, bpy ...
-
Article
Studies of recombination X-ray-laser gain and gain-medium uniformity
The time evolution of the uniformity of the line-shaped X-ray-laser gain medium and the spatial characteristics of the recombination X-ray-laser gains of the Li-like ions are studied using long (∼900 ps) and s...
-
Article
Synthesis and magnetic properties of novel copper(II)-lanthanoid(III) heterobinuclear oxamido bridged complexes
Seven novel μ-oxamido hetero-metal binuclear complexes have been prepared and characterized, namely [Cu(oxae)-Ln(NO2-phen)2 (ClO4)](ClO4)2, where oxae denotes the N,N′-bis(2-aminoethyl)oxamido dianion, NO2-phen d...
-
Article
Magnesium oxide-supported polytitazane cobalt(III) complex for catalytic epoxidation of α-pinene with molecular oxygen
Magnesium oxide-supported polytitazane cobalt complex has been prepared and found to be a very effective catalyst for the epoxidation of α-pinene in the presence of an aldehyde as a reductant. XPS data show th...
-
Article
Synthesis, crystal structure and magnetic properties of a series of polymeric lanthanoid–copper complexes [Ln2Cu3{O(CH2−CO2)2}6]·nH2O (Ln=La, Nd, n=9; Ln=Er, n=6)
The reaction of diglycolic acid, O(CH2CO2H)2, with Cu(NO3)2·2H2O and lanthanoid nitrate hydrate produces a series of novel Ln–Cu mixed metal complexes, [Ln2Cu3{O(CH2CO2)2}6]·nH2O (Ln=La, Nd, n=9; Ln=Er, n=6), ...
-
Article
A dinuclear cyano-bridged complex based on hexacyanoferrate(III) and samarium(III) nitrate: synthesis and crystal structure
A new complex, [Sm(DMF)4(H2O)4Fe(CN)6]·H2O (DMF = N, N-dimethylformamide), has been synthesized and characterized by X-ray single crystal structure and thermogravimetric analyses. The complex crystallizes in the
-
Article
The effect of diluents on extraction of uranium(VI) with petroleum-sulfoxides (PSO)
The effect of diluents on the extraction of uranium(VI) with petroleum sulfoxides (PSO) was studied. The decreasing order of extraction ability of PSO is as follows: benzene, toluene, cyclohexane, heptane, ker...
-
Article
Crystal structure of the addition compound of N,N′-bi(2-pyridylmethyl)-oxamide and complex of manganese with 1,10-phenanthroline
The structure of the addition compound, Mn(phen)3(PMoxdH2)(ClO4)2 was established by X-ray crystallography, where PMoxdH2 is N,N′-bi(2-pyridylmethyl)-oxamide. Six nitrogen atoms of the three 1,10-phenanthroline b...
-
Article
Synthesis and structure of tris[2-(1-naphthalenyloxy)ethyl]amine and tris[2-(1-naphthalenyloxy)ethyl]amine perchlorate
Syntheses and crystal structures of tris[2-(1-naphthalenyloxy)ethyl]amine 1 and tris[2-(1-naphthalenyloxyl)ethyl]amine perchlorate 2 are reported. Compound 1 crystallizes in the rhombohedral system, space group R
-
Article
Complexation between vanadium(V) and citrate: spectroscopic and structural characterization of a dinuclear vanadium(V) complex
Investigation of the aqueous coordination chemistry for citrate and vanadium(V) resulted in the isolation and characterization of a dinuclear vanadium(V) citrato complex (1) Na2K2[VO2(Hcit)]2 · 9H2O. Complex (1) ...
-
Article
Crystal structure and spectroscopic properties of a new five-coordinate mixed-ligand nickel(II) complex with a macrocyclic ligand: [Ni(trans[14]diene)SCN]ClO4 (trans[14]diene = 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene)
A new five-coordinate nickel(II) complex of a trans[14]diene macrocyclic ligand has been prepared and characterized by X-ray crystallography, u.v. and i.r. spectroscopy. The coordination environment of the nic...
-
Article
Crystal and molecular structure of a nickel(II) complex with a macrocyclic [14]N4 ligand
The crystal and molecular structure of a macrocyclic oxamido Schiff base Ni(II) complex [NiL] has been determined by X-ray crystallography. L is the dianion of diethyl 5,6,7,8,15,16-hexahydro-6,7-dioxodibenzo[...
-
Article
Submicro-sized LiMn2O4 prepared by a sol–gel, spray-drying method
Submicro-sized LiMn2O4 powders were produced by a sol–gel, spray-drying method in which a brown gel precursor was prepared via the reaction of LiOH alkaline solution with 1 M Mn(CH3COO)2. The gel precursor was th...
-
Article
Synthesis, crystal structure and magnetic studies of cis-configuration copper(II)—M(II) (M = Ba, Ca) complexes of novel Schiff bases derived from salicylaldehyde and dipeptides
The novel heteronuclear complexes [M(CuL)2]2 · nH2O [M = Ba (1), Ca (2); H2L = N-salicylideneglycylglycine] were synthesized and characterized, and the crystal structure of complex (1) was determined by X-ray dif...
-
Article
Synthesis, structure and magnetism of a hydrogen-bond-linked three-dimensional network of a novel nickel(II)–cobalt(II)–nickel(II) complex containing a new macrocyclic mononuclear complex ligand
A novel trinuclear complex, [Co(NiL)2(H2O)2](ClO4)2 · 2C2H5OH, was prepared by self-assembly using [NiL] as a new complex ligand; L is the dianion of dimethyl 5,6,7,8,15,16-hexahydro-6,7-dioxodibenzo[1,4,8,11]tet...
-
Article
Synthesis and structural characterization of a novel μ 3-CO3 2− bridging trinuclear copper(II) complex
A novel μ 3-CO3 2− bridging trinuclear copper(II) complex, formulated as {[Cu3(2,2′-bpy)6(μ 3-CO3)]2(ClO4)8 · H2O} (3), has been synthesized by fixation of atmospheric CO2. The X-ray single crystal determination ...
-
Article
Heterometallic two-dimensional polymer containing cyanide-bridged praseodymium(III) and transition metals
A heterometallic cyanide-bridged 3d–4f heterometallic coordination polymer [Pr(DMF)4(H2O)3.5Fe(CN)6]·H2O (DMF = N,N′-dimethylformamide) has been synthesized and characterized by X-ray diffraction analysis. It cry...