全文获取类型
收费全文 | 186篇 |
免费 | 2篇 |
专业分类
化学 | 185篇 |
力学 | 1篇 |
物理学 | 2篇 |
出版年
2022年 | 1篇 |
2021年 | 5篇 |
2020年 | 3篇 |
2019年 | 7篇 |
2018年 | 9篇 |
2017年 | 3篇 |
2016年 | 4篇 |
2015年 | 2篇 |
2014年 | 5篇 |
2013年 | 10篇 |
2012年 | 5篇 |
2011年 | 7篇 |
2010年 | 9篇 |
2009年 | 15篇 |
2008年 | 8篇 |
2007年 | 8篇 |
2006年 | 9篇 |
2005年 | 3篇 |
2004年 | 2篇 |
2003年 | 10篇 |
2002年 | 4篇 |
2001年 | 3篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1997年 | 3篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1994年 | 2篇 |
1993年 | 4篇 |
1992年 | 1篇 |
1991年 | 5篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1988年 | 6篇 |
1987年 | 1篇 |
1984年 | 2篇 |
1982年 | 5篇 |
1979年 | 1篇 |
1978年 | 3篇 |
1973年 | 3篇 |
1972年 | 3篇 |
1971年 | 1篇 |
1970年 | 4篇 |
1968年 | 1篇 |
1964年 | 1篇 |
排序方式: 共有188条查询结果,搜索用时 0 毫秒
1.
2.
3.
Vedenyapina M. D. Kuznetsov V. V. Kulaishin S. A. Makhova N. N. Kazakova M. M. 《Russian Journal of Organic Chemistry》2021,57(9):1417-1422
Russian Journal of Organic Chemistry - The kinetics and mechanism of corrosion of gold anode in a weakly basic aqueous solution of N,N-dimethylpropane-1,3-diamine have been studied by cyclic... 相似文献
4.
A. V. Shevtsov V. Yu. Petukhova S. A. Kutepov V. V. Kuznetsov N. N. Makhova N. E. Kuz'mina G. G. Aleksandrov 《Russian Chemical Bulletin》2000,49(11):1882-1886
A series of complexes ofN-(2-aminoethyl)diaziridines with transition metal salts (Zn2+, Cd2+, Ni2+, Co2+, Mn2+, or Fe2+) were synthesized. Their structures were established by IR and NMR spectroscopy. The structure of bis[1,2-bis(2-aminoethyl)diaziridine]cadmium(II)
diperehlorate was confirmed by X-ray diffraction analysis.
Published inIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 1910–1914, November, 2000. 相似文献
5.
6.
7.
8.
Kuznetsov V. V. Kutepov S. A. Makhova N. N. Lyssenko K. A. Dmitriev D. E. 《Russian Chemical Bulletin》2003,52(3):665-673
A new method was developed for the synthesis of 6-substituted 1,5-diazabicyclo[3.1.0]hexanes and 7-substituted 1,6-diazabicyclo[4.1.0]heptanes by condensation of N-monohalotrimethylene- and N-monohalotetramethylenediamines with carbonyl compounds in the presence of bases. X-ray diffraction studies and quantum-chemical B3LYP/6-31G* calculations demonstrated that the conformations of the resulting bicyclic systems are stabilized by stereoelectronic interactions. As a result, a boat conformation prevails in 1,5-diazabicyclo[3.1.0]hexanes, whereas the energies of chair, half-chair, and boat conformations of 1,6-diazabicyclo[4.1.0]heptanes are equalized. 相似文献
9.
10.
G. A. Gazieva A. N. Kravchenko K. A. Lyssenko R. G. Gaziev O. V. Lebedev N. N. Makhova 《Russian Chemical Bulletin》2008,57(8):1744-1753
The reactions of sulfamides with 4,5-dihydroxyimidazolidin-2-ones were studied at ambient and high pressure. The previously
unknown derivatives of 5(3H)-oxotetrahydro-1H-imidazo-[4,5-c][1,2,5]thiadiazole 2,2-dioxide, viz., sulfo analogs of tetrahydroimidazo[4,5-d]imidazole-2,5-(1H,3H) diones (glycolurils), were synthesized. The structures of some of these compounds were established by X-ray diffraction.
The high-pressure reactions performed under conditions of solvent phase transitions afforded also N-(1,3-diethyl-5-hydroxy-2-oxoimidazolidin-4-yl)-N,N′-dialkylsulfamides. Among these compounds, a new conglomerate was found.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1711–1719, May, 2008. 相似文献