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The protonated homochiral octamer of serine exchanges all 33 of its labile hydrogens with CH(3)OD and undergoes ligand switching reactions with amines in a quadrupole ion trap mass spectrometer.  相似文献   
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Benzene, toluene, tert-butylbenzene, or biphenyl virtually do not react with NdI2 (1) or DyI2 (2) in THF at –20 °C but appreciably accelerate the reactions of these salts with solvents, resulting in LnI3 and intractable mixtures of products of the general composition [LnI(H)(R)(THF)] (R are fragments of the THF molecule). The same effect is induced by the addition of diphenylmercury or tetraphenyltin to solutions of 1 or 2. Phenol easily oxidizes 1 and 2 to give at 0 °C the PhOLnI2(THF) x complexes (x = 3, 4) in 55—95% yields. At –90 °C, iodide 2 is converted into a similar complex PhODyI2(THF)4, whereas 1 gives a mixture of PhONdI2(THF)4, (PhO)2NdI(THF)5, NdI3(THF)3, and [NdI(H)R(THF)]. A plausible pathway of the reactions including the intermediate formation of extremely reactive monovalent lanthanide iodides LnI is discussed.  相似文献   
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Saturated vapor pressure of lithium pentafluorophenolate and the lanthanide complexes as a function of temperature has been determined by the Knudsen effusion method. Processing of the pressure data allowed the calculation of thermodynamic parameters of the compounds sublimation. Mass spectra and differential scanning calorimetry data are presented.  相似文献   
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The diiodides NdI2 and DyI2 react with nitrogen at an atmospheric pressure at 2704-550 °C to give the nitrides (LnI2)3N (Ln = Nd and Dy). The products obtained are insoluble in organic solvents; in THF, they rapidly disproportionate into LnI3(THF)3 and the iodide nitrides (NdI)3N2 of unclear structures. The nitrides (NdI2)3N and (DyI2)3N can be completely hydrolyzed into ammonia, the triiodide hydrates LnI3(H2O)2, and the monoiodide hydrates LnI(OH)2(H2O). A reaction of (NdI2)3N with excess iodobenzene in THF gives Ph3N and PhNH2 in 9 and 5% yields, respectively. Reactions of (NdI2)3N with propyl chloride, benzyl chloride, and acetyl chloride produce no nitrogen-containing products. A reaction of (NdI2)3N with CpK gives Cp3Nd(THF) in 63% yield.  相似文献   
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