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Aerated aqueous solutions of 3,5-dihydroxytoluene (7) irradiated with single electron pulses in the dark or under exposure to a light flux were studied by pulse radiolysis and high-performance liquid chromatography. The two types of high-energy particles, -rays and fast electrons, were compared. The complex mechanism of radiation-induced redox reactions occurring in the aqueous solutions of 7 and giving low-molecular and long-chain oxidation products was experimentally proved. Transient species of the radiation-induced oxidation of 7 that absorb light in the spectral range of 250–420 nm and have a lifetime longer than a millisecond were observed.  相似文献   
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1,3-Bis(trimethylsilyl)- and 1,3-bis(tributylstannyl)-5,5-diethylpyrimidine-2,4,6(1H,3H,5H)-triones were synthesized in high yields by the reactions of 5,5-diethyl-2,4,6(1H,3H,5H)-trione (barbital) with hexamethyldisilazane and bis(tributylstannyl) oxide, respectively. The products were reacted with acetyl, benzoyl, and 3-(triethylgermyl)propionyl halides to obtain the corresponding bisacylated pyrimidine derivatives. The reaction of 1-methyluracil with (Bu3Sn)2O gave 1-methyl-3-(tributylstannyl)pyrimidine-2,4(1H,3H)-dione.__________Translated from Zhurnal Obshchei Khimii, Vol. 75, No. 6, 2005, pp. 923–926.Original Russian Text Copyright © 2005 by Gordetsov, Loginova, Zimina, Cherepenikova, Kurskii.  相似文献   
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The 950°C isothermal section of the InPO4-Na3PO4-Li3PO4 ternary system was studied and constructed; one-, two, and three-phase fields are outlined. Five solid-solution regions exist in the system: solid solutions based on the complex phosphate LiNa5(PO4)2 (olympite structure), the indium ion stabilized high-temperature Na3PO4 phase (Na3(1 − x)In x (PO4); space group Fm [`3]\bar 3 m), the complex phosphate Na3In2(PO4)3, and the α and β phases of the compound Li3In2(PO4)3. A narrow region of melt was found in the vicinity of eutectic equilibria. All the phases detected in the system are derivatives of phases existing in the binary subsystems. Isovalent substitution of lithium for sodium in Na3In2(PO4)3 leads to a significant increase in the region of a NASICON-like solid solution.  相似文献   
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Conclusions Vanadocene monochloride and vanadocene dichloride react with organotin and organosilicon pseudohalides, R3MNCX (R3M=Bu3Sn, Me3Si and X=O, S), to give the corresponding vanadium (IV) d1-complexes, Cp2V(NCX)2 or Cp2VCl(NCX).Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 678–681, March, 1988.  相似文献   
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Subsolidus sections in the systems Li3PO4-InPO4 (950°C) and Na3PO4-InPO4 (800, 900, and 1000°C) have been studied by X-ray powder diffraction. The compound Li3In(PO4)2 has been synthesized, and the nasicon-type solid solution Li3(1 ? x)In2 + x(PO4)3 (0.67 ≤ x ≤ 0.80). has been found to exist. In the system Na3PO4-InPO4, the solid solution Na3(1 ? x)Inx/3PO4 (0 ≤ x ≤ 0.2) and two complex phosphates exist: Na3In(PO4)2 and Na3In2(PO4)3. These complex phosphates are dimorphic, with the irreversible-transition temperature equal to 675 and 820°C, respectively. Na3In(PO4)2 degrades at 920°C. Ionic conductivity has been measured in some phases in the system.  相似文献   
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