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1.
L. A. Chetkina V. E. Zavodnik A. N. Sobolev V. K. Bel'skii B. P. Bespalov A. G. Abolin 《Journal of Structural Chemistry》1991,32(3):442-445
L. Ya. Karpov Physical Chemical Research Institute. Translated from Zhurnal Strukturnoi Khimii, Vol. 32, No. 3, pp. 141–144, May–June, 1991. 相似文献
2.
O. V. Firsova T. S. Dolgushina V. A. Polukeev E. M. Ioannisyan V. E. Zavodnik A. I. Stash V. K. Bel’skii V. A. Galishev 《Russian Journal of Organic Chemistry》2005,41(5):762-768
Reactions of thiazoline-2-thione with C,N-disubstituted nitrile imines were investigated. The reaction products are substituted 2-(1,3,4-thiadiazol-2-ylideneamino)ethanethiols and bis[2-(1,3,4-thiadiazol-2-ylideneamino)ethyl] disulfides. The reaction of thiazoline-2-thione with a double excess of nitrile imine did not considerably change the process route. The structure of compounds obtained was proved by X-ray diffraction analysis. A presumable scheme is given describing the formation of compounds obtained.__________Translated from Zhurnal Organicheskoi Khimii, Vol. 41, No. 5, 2005, pp. 776–782.Original Russian Text Copyright © 2005 by Firsova, Dolgushina, Polukeev, Ioannisyan, Zavodnik, Stash, Bel’skii, Galishev. 相似文献
3.
Brel VK Belsky VK Stash AI Zavodnik VE Stang PJ 《Organic & biomolecular chemistry》2003,1(23):4220-4226
Reaction of 1-chloro-4-(diethoxyphosphonyl)alka-2,3-dienes 14,15 with purine and pyrimidine heterocyclic bases in the presence of cesium carbonate afforded new acyclic analogues of nucleotides containing a 1,2-alkadienic skeleton 18-23. Dealkylation of 18-23 furnished phosphonic acids 2a-f. In contrast, alkylation reaction with 1-chloro-4-(diethoxyphosphonyl)octa-2,3-diene 16 led to Z- and E-1,3-alkadienic phosphonates 25a,b and 26a,b. A similar reaction with 1-chloro-4-(diethoxyphosphonyl)-2-methylbuta-2,3-diene 17 led to the elimination of hydrochloride and formation of 4-(diethylphosphonyl)-2-methylbut-1-en-3-yne 24. Molecular structures of new acyclic nucleotides 18 and 2f are determined by X-ray crystallographic analysis. 相似文献
4.
L. A. Chetkina A. N. Sobolev V. K. Bel'skii V. E. Zavodnik I. G. Arzamanova Ya. V. Gurvich O. F. Starikova 《Journal of Structural Chemistry》1991,32(5):766-768
L. Ya. Karpov Scientific-Research Physicochemical Institute. Scientific-Research Institute of Rubber and Latex Goods. Translated from Zhurnal Strukturnoi Khimii, Vol. 32, No. 5, pp. 162–164, September–October, 1991. 相似文献
5.
6.
N. V. Gérbéléu V. B. Arion Yu. A. Simonov V. E. Zavodnik K. I. Turté S. S. Stavrov A. A. Pasynskii O. G. Ellert D. I. Grédinaru M. S. Byrke 《Theoretical and Experimental Chemistry》1991,27(3):327-332
Sodium acetylacetonate reacts with S-metliylisothiosemicarbazidium nitrate and Fe(NO3)3 · 9H2O in ethanol to make [Fe(HL)NO]NO3, in which H3L is bis(S-methyl-isothiosemicarbazone)-2,4-puntandione. The [Fe(HL)NO]+ cation has a square pyramidal structure with the HL2- arranged around the central ion in the basal plane and the nitrogen atom of the NO group in the apical position, with the iron atom diverging from the plane of the base of the pyramid by 0.477 Å. The FeN0 moiety has a linear structure (FeNO = l72.7°). XRD, IR, and Mössbauer spectroscopy have been combined with calculations on the electronic structure to demonstrate that the Fe-NO bond is covalent.Chemical Institute, Academy of Sciences of Moldavian SSR. Applied Physics Institute, Academy of Sciences of the Moldavian SSR. Kishinev. Institute of Crystallography, Academy of Sciences of the USSR. Kurnakov Institute for General and Inorganic Chemistry, Academy of Sciences of the USSR, Moscow. Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 27, No, 3, pp. 376–381, May–June, 1991. Original article submitted February 18, 1991. 相似文献
7.
V. K. Bel'skii E. V. Kharchenko A. N. Sobolev V. E. Zavodnik N. A. Kolomiets G. S. Prober L. P. Oleksenko 《Journal of Structural Chemistry》1991,31(5):791-795
Kiev State University and L. Ya. Karpov Physical Chemistry Research Institute. Translated from Zhurnal Strukturnoi Khimii, Vol. 31, No. 5, pp. 116–121, September–October, 1990. 相似文献
8.
T. P. Kosulina F. Kh. Karataeva V. E. Zavodnik V. G. Kul'nevich 《Chemistry of Heterocyclic Compounds》1998,34(2):141-147
It has been shown by PMR spectrometry and x-ray structure analysis that the six-membered 1,3-dioxane ring of 2-ethynyl-substituted
2,4,4-trimethyl-1,3-dioxanes, either in solution or in the solid state, exists in a nearly ideal chair conformation with an
axial position of the ethynyl substituent.
Kuban State Technological University, Krasnodar 350072, Russia. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No.
2, pp. 163–169, February, 1998. 相似文献
9.
A. V. Gutnov V. T. Abaev A. V. Butin V. E. Zavodnik V. G. Kul'nevich 《Chemistry of Heterocyclic Compounds》1996,32(2):141-145
It was shown that Me3SiCl, B(OH)3, PhB(OH)2, and B2O3 can act as catalysts for the selective synthesis of 2-hydroxyaryldifurylmethanes. It was established by x-ray crystallographic analysis that the molecules in the crystal of 2-hydroxy-3,5-diiodopenylbis(5-methyl-2 furyl)methane are linked in pairs by two hydrogen bonds between the hydroxyl group in one of them and the oxygen atom of the fury! group in the other.For Comunication 9. see [1]Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 162–167, February, 1996. 相似文献
10.
Two novel 25,27-dihydroxy-26,28-bis(3-phenylthiapropxy)-calix[4]arene(3) and 25,27-dihydroxy-26,28-bis(3-phenylthiapropoxy)-5,11,17,23-tetra-tert-butylcalix[4] arene (4) were synthesized for the evaluation of their ion-selectivity in ion-selective electrodes(ISEs).ISEs based on 3 and 4 as neutral ionophores were prepared,and their selectivity coefficients for Ag^ (lg KAg,M^pot)were investigated against other alkali metal,alkaline-earth metal,aluminum,thallium(Ⅰ),Lead and some transition metal ions using the separate solution method (SSM).These ISEs showed excellent Ag^ seletivity over most of the interfering cations examined,except for Hg^2 and Fe^2 having relative smaller interference(lg KAg,M^pot≤-2.1). 相似文献