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 Posted: Sun 17:26, 05 Dec 2010 Post subject: ugg prezzo Lanthanide heteropoly tungsten Synthesi |
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Lanthanide heteropoly tungsten Synthesis and characterization of gallium salt
) With the pH value increased. Complexes E1 / 2 negative shift occurred,[link widoczny dla zalogowanych], indicating that the reduction process was accompanied by electron protonation. Table 4LnX2 in 0.2tool ・ L ~ HAc-NaAc electrolyte El ,2-0-0 the-0-0pH (b) Figure 2Ce (GaWt1) 2 and Gd (GaWI1) 2 of the E1 / 2 and the pH value of the relationship between Figure 2 shows w (vI) - w (v) ~ Et / 2 and the linear relationship between pH value, the slope for a 0.062. Which can be inferred in the two-electron reduction process was Taiwanese, while two protons,[link widoczny dla zalogowanych], the reduction mechanism is: the first step: [Ln (GaW1lO) 2] a child of a +2 e +2 H ~ [H2Ln (GaWIl03982) 2] n a second step: [H2Ln (GaWIlO39H2) 2] +2 e a +2 H ~ [HaLn (GaWIl039I-I2) 2] Reference 1MiztmoNeta1. Heteropolyanlonsineatalys ~ s. JMolCatal,[link widoczny dla zalogowanych], 1994,86 (I ~ 3): 3193422 Liu Jingfu and so on. (N) n 【w2]-O heteropoly complexes Synthesis and properties. Chem, 1994,15 (6) :799 - 8023RongChaoyingeta1. Lacur, aryp0lyoxometalate ¨ l Qin are a acceptc ~ Ligands. Characterizationofs0r 【-eTtmgstoruthenate (Ⅱ, Ⅲ, 1V, V) HetempdyanionsandTheirAtom-TransferReactivityJAmChemSoc. 1 and Qing Wang as: lanthanide heteropoly tungsten Synthesis and characterization of gallium salt. '6 L'1992 ,114:2932-29384 Ge Yong-Kui Shan and other neodymium carboxylate with Taiwan Heteropoly Synthesis, structure and spectroscopic properties of materials. Chemistry, 1992,[link widoczny dla zalogowanych],50:357 ~ 3645BreyardDeta1. Tungsten A 183NMR: A ~ ompht, andu ~ equivocal ~ signment0ithetungsten-ttm ~ ten ∞ ect [vitiesinheteropdyxungstateviatwo-dimensional \j anxious withthehetero ~ y-nmtateanion [L ~ {PWIl9) 2] andtheirconsitutionaqueoussolutic ~ La-rareearthdementPo [a yhedron, 1990,9 (10) :1249 - 1256SynthesisandCharacterizationofBis (undecatungsto - gallate) LanthanatesofPotassiumWangWeiqingJiaYingpingZlumgXiumei (Depto {ChemicalringHarbinEngineeringUnive.t ~ ity -Harbin150001) AbstractThec0mplex ~ ofKtt [Ln (GaWIlOH2) 2] 'xH20 (LnLa, Ce, Pr, Nd-Sm-Eu, Gd, Dy) arepreparedfromtheirlacunaryprecursorKsGawj1O \andcharacterizedbyele ~ nentalanalysis. IR. ~ WNMR, ESR,[link widoczny dla zalogowanych], XPSandelectrochemistry ・ Keywords: lanthanate; hetempolytungstogallate; synthesis; charact ~ ized
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