【摘 要】
：
Methods of optical spectroscopy and X-ray crystallography data were used to examine the effect of architecture of carboxylate anions on structure of the Eu3+ co
【机 构】
：
Laboratory of Molecular Electronics,A.N.Nesmeyanov Institute of Organoelement Compounds
论文部分内容阅读
Methods of optical spectroscopy and X-ray crystallography data were used to examine the effect of architecture of carboxylate anions on structure of the Eu3+ coordination centre in europium carboxylates with 1,10-phenanthroline Eu(RCOO)3·Phen.Luminescence spectra of europium acetate,nitropropionate,benzoate,naphthylcarboxylates,phenylacetates,phenoxyacetate,triphenylpropionate were investigated.A few of europium carboxylates with 2,2'-bipyridine Eu(RCOO)3·Bpy and europium salts Eu(RCOO)3·nH2O were also studied.Vibrational IR and Raman spectra of phenylacetate family were analyzed.The crystal structure of nitropropionate Eu(NO2C2H4COO)3·Phen was solved by X-ray diffraction method.The predominant influence of steric hindrances on Eu3+ coordination centre was observed at increase of the size of aromatic fragment of carboxylate anions.It was demonstrated,that introduction of the methylene bridges between the carboxylic group and aromatic rings of ligand weakens the effect of steric factor.
其他文献
In this investigation,an attempt has been made to study the influence of welding consumables on the factors that influence cold cracking of armour grade quenche
The microstructure, chemical composition and morphology evolution of icosahedral quasicrystalline phase of Mg67.4Zn28.9Y3.7 ternary alloy were investigated in d
Polycrystalline silicon (poly-Si) films were deposited using Ar diluted SiH4 gaseous mixture by electron cy-clotron resonance plasma-enhanced chemical vapor dep
The effect of equal-channel angular pressing(ECAP) on the pitting corrosion resistance of anodized Al-Cu alloy was investigated by electrochemical techniques in
An attempt to fabricate Fe-Ni-Cr coating on AISI H13 tool steel was performed with selective laser melting.Fe-Ni-Cr coating was produced by experimental facilit
Surface functionalization of suspended single-walled carbon nanotubes(SWNTs) using metal(Au) nanoparticles(NPs) is reported.SWNTs are grown on three-dimensional
The electronic and defect energy level structure of polycrystalline Sr2MgSi2O7:Eu2+,R3+ persistent luminescence materials were studied with thermoluminescence a
A small amount of misch metal was added to Cu-Zn-Al alloy in order to study its effect on grain refinement, mechanical properties, phase transformation behavior
In this paper, we reported a first-principles investigation on the structural and electronic properties of O adsorption on the 7-TiAI(lll) surface, to illustrat
Stainless steels such as STS 304, 316 and 630 are frequently used as shaft materials in small fiber reinforced polymer (FRP) fishing boats. If the shaft materia