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排序方式: 共有97条查询结果,搜索用时 15 毫秒
31.
V. N. Solov'vev N. G. Zabirov R. A. Cherkasov I. V. Martynov 《Journal of Structural Chemistry》1991,32(3):379-383
Institute of Physiologically Active substances, Academy of Sciences of the USSR. Kazan' State University. Translated from Zhurnal Strukturnoi Khimii, Vol. 32, No. 3, pp. 80–84, May–June, 1991. 相似文献
32.
33.
We report on a study of the proton induced hyperon production reactions. We discuss the theoretical efforts made towards understanding
the existing data and the uncertainties involved in the calculations. Our recent calculations of the missing mass spectra
for the pp → K
+ Λp reaction which involve a proper coupled channel treatment of the final state Λp interaction are presented. Significant differences in the results using different models of the hyperon-nucleon interaction
are found. 相似文献
34.
35.
Nail Zabirov Rafael Cherkasov 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1-4)
Abstract N-(thio)carbonyl(thio)amidophosphate, their open-chain and crown-containing analogues with a C (X) NHP (Y) fragments are associated with intermolecular hydrogen bonds as C=X…H-N and P=Y…H-N or intramolecular hydrogen bonds of N-H…O(macrocycle). These compounds easily enter into alkylation reaction, are added according to C=N bonds of activated imines, take part in O → S and S → O exchanging reactions. 相似文献
36.
Shaidarova L. G. Gedmina A. V. Brus'ko V. V. Zabirov N. G. Ulakhovich N. A. Budnikov G. K. 《Russian Journal of Applied Chemistry》2002,75(6):919-925
A method is proposed for determining Ni2
+, Co2
+, Cu2
+, Cd2
+, and Pb2
+ ions by inversion voltammetry on carbon-paste electrodes modified with N-diisopropoxythiophosphoryl-N'-phenyl thiourea and its derivatives: N,N'-bis-(diisopropoxythiophosphorylamidothiocarbonyl)-1,5-diamino-3-oxapentane, N,N'-bis- (diisopropoxythiophosphorylamidothiocarbonyl)-1,8-diamino-3,6-dioxaoctane and N,N'-bis-(diisopropoxythio- phosphorylaminothiocarbonyl)-1,10-diaza-18-crown-6. 相似文献
37.
38.
M. P. Kutyreva N. A. Ulakhovich M. S. Starikova Yu. I. Sal’nikov V. V. Brus’ko F. D. Sokolov N. G. Zabirov 《Russian Journal of Inorganic Chemistry》2007,52(7):1050-1055
The acid-base and coordination properties of N-(thio)phosphorylated thioureas and thioamides R1C(X)NHP(Y)R 2 2 , where X, Y = S, O (in various combinations); R1 = t?Bu, i-Pr, PhNH, Ph; R2 = (OPr?i), with respect to Co(II), Ni(II), Zn(II), and Cd(II) ions have been studied by pH-metry and UV spectrometry in an organic solvent. The pK values, the stability constants logβ and the maximum accumulated fractions of complex species in the solution have been calculated. 相似文献
39.
Felix D. Sokolov Damir A. Safin Maria G. Babashkina Nail G. Zabirov Vasiliy V. Brusko Nikolay A. Mironov Dmitry B. Krivolapov Igor A. Litvinov Rafael A. Cherkasov Boris N. Solomonov 《Polyhedron》2007
For N-(thio)phosphorylthioureas of the common formula RC(S)NHP(X)(OiPr)2HLI (R = N-(4′-aminobenzo-15-crown-5), X = S), HLII (R = N-(4′-aminobenzo-15-crown-5), X = O), HLIII (R = PhNH, X = S), HLIV (R = PhNH, X = O), and (N,N′-bis-[C(S)NHP(S)(OiPr)2]2-1,10-diaza-18-crown-6) H2LV, salts LiLI,III,IV, NaLI–IV, KLI–IVM2LV (M = Li+, Na+, K+), Ba(LI,III,IV)2, and BaLV have been synthesized and investigated. Compounds NaLI,II quantitatively drop out as a deposit in ethanol medium, allowing the separation of Na+ and K+ cations. This effect is not displayed for the other compounds. The crystal structures of HLIII and the solvate of the composition [K(Me2CO)LIII] have been investigated by X-ray crystallography. 相似文献
40.
以邻菲咯啉衍生物及1,3-间苯二甲酸为配体的一维链状Cd(Ⅱ)配位聚合物的合成及结构 总被引:3,自引:3,他引:0
在水热条件下,我们利用邻菲咯啉衍生物配体(L=2-(3-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline)和1,3-间苯二甲酸(1,3-H2BDC)反应得到了一维配位聚合物[Cd2(L)2(1,3-BDC)2]n,并对该化合物进行了元素分析、红外和单晶X-射线表征。该化合物属于三斜晶系,空间群Pī,晶胞参数a=1.080 8(4)nm,b=1.149 5(4)nm,c=1.924 8(7)nm,α=106.482(5)°,β=99.436(6)°,γ=93.093(6)°,V=2 249.2(14)nm3,Z=4,C27H15CdFN4O4,Mr=590.83,Dc=1.745 g.cm-3,F(000)=1 176,μ(Mo Kα)=1.024 mm-1,R=0.044 5和wR=0.111 7。该化合物为一维链状结构,链与链之间又进一步地通过CH-π相互作用形成二维层状超分子结构。 相似文献