Hydration Energies and Structures of Alkaline Earth Metal Ions, M2+(H2O)n,n= 5−7, M = Mg, Ca, Sr, and Ba
نویسندگان
چکیده
منابع مشابه
Crystal structures of two alkaline earth (M = Ba and Sr) dimanganese(II) iron(III) tris(orthophosphates)
Two new orthophosphates, BaMn2Fe(PO4)3 [barium dimanganese(II) iron(III) tris-(orthophosphate)] and SrMn2Fe(PO4)3 [strontium dimanganese(II) iron(III) tris-(orthophosphate)], were synthesized by solid-state reactions. They are isotypic and crystallize in the ortho-rhom-bic system with space group type Pbcn. Their crystal structures comprise infinite zigzag chains of edge-sharing FeO6 octa-hedra...
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or Ce 3+ as an activator on the other side. Also, the quantum efficiency of the thiosilicates is acceptable (e.g. 30% for Sr2SiS4, 35% for Ca2SiS4) and open to further improvement, e.g. by finetuning the synthesis conditions [1]. The thermal quenching temperature T0.5 (defined as the temperature for which the emission intensity is half of the intensity at low temperature) in Ca2SiS4:Eu is suffi...
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We present a detailed theoretical study of three alkaline earth compounds Ca2Pb, Sr2Pb and Ba2Pb, which have undergone little previous study, calculating electronic band structures and Boltzmann transport and bulk moduli using density functional theory. We also study the corresponding tin compounds Ca2Sn, Sr2Sn and Ba2Sn. We find that these are all narrow band gap semiconductors with an electro...
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By means of density functional theory and statistical mechanics, we investigate the geometric and electronic structures, thermodynamic stability and infrared (IR) vibrational frequencies of alkaline earth metal endohedral fullerenes, M@C(76) (M = Ca, Sr, and Ba). The results reveal that M@C(1)(17,459)-C(76) possesses the lowest energy followed by M@C(2v)(19,138)-C(76) with a very small energy d...
متن کاملBis(phosphinoselenoic amides) as versatile chelating ligands for alkaline earth metal (Mg, Ca, Sr and Ba) complexes: syntheses, structure and ε-caprolactone polymerisation.
We report here a series of heavier alkaline earth metal complexes with N,N'-(ethane-1,2-diyl)bis(P,P-diphenylphosphinoselenoic amide) using two synthetic routes. In the first route, the heavier alkaline earth metal bis(trimethylsilyl)amides [M{N(SiMe3)2}2(THF)n] (M = Ca, Sr, Ba), when treated with phosphinoselenoic amine [Ph2P(Se)NHCH2CH2NHPPh2(Se)] (1), afforded the corresponding alkaline eart...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 1999
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja9911871