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1.
2.
N. K. Smolentsev 《Siberian Mathematical Journal》1989,30(3):451-457
Kemerovo. Translated from Sibirskii Matematicheskii Zhurnal, Vol. 30, No. 3, pp. 131–139, May–June, 1989. 相似文献
3.
G. I. Zharkova I. A. Baidina A. I. Smolentsev I. K. Igumenov 《Journal of Structural Chemistry》2013,54(6):1083-1090
By interaction of trimethylplatinum(IV) iodide with phenyl-containing β-diketonates, the volatile monomeric complexes of trimethylplatinum(IV) based on benzoyltrifluoroacetone (Hbtfa) and benzoylacetone (Hbac) of the composition (CH3)3Pt(btfa)H2O (I) and (CH3)3Pt(bac)Py (II) are obtained. Synthesis of the complexes is described; data of elemental analysis and IR spectra are reported; thermal characteristics are studied by thermogravimetry. For the first time, a single crystal X-ray diffraction study of complexes (I), (II), and the initial tetrameric complex [(CH3)3PtI]4 (III) is performed. 相似文献
4.
Journal of Structural Chemistry - Two new compounds of the composition [Cu2(en)2(μ-CN)][{Cu(en)}3Re6Q8(CN)6]·en·H2O (Q = S, Se) are synthesized under solvothermal... 相似文献
5.
Dr. Nikolay A. Pushkarevsky Elena A. Chulanova Prof. Dr. Leonid A. Shundrin Dr. Anton I. Smolentsev Dr. Georgy E. Salnikov Dr. Elena A. Pritchina Dr. Alexander M. Genaev Dr. Irina G. Irtegova Prof. Dr. Irina Yu. Bagryanskaya Prof. Dr. Sergey N. Konchenko Prof. Dr. Nina P. Gritsan Prof. Dr. Jens Beckmann Prof. Dr. Andrey V. Zibarev 《Chemistry (Weinheim an der Bergstrasse, Germany)》2019,25(3):806-816
By means of cyclic voltammetry (CV) and DFT calculations, it was found that the electron-acceptor ability of 2,1,3-benzochalcogenadiazoles 1 – 3 (chalcogen: S, Se, and Te, respectively) increases with increasing atomic number of the chalcogen. This trend is nontrivial, since it contradicts the electronegativity and atomic electron affinity of the chalcogens. In contrast to radical anions (RAs) [ 1 ].− and [ 2 ].−, RA [ 3 ].− was not detected by EPR spectroscopy under CV conditions. Chemical reduction of 1 – 3 was performed and new thermally stable RA salts [K(THF)]+[ 2 ].− ( 8 ) and [K(18-crown-6)]+[ 2 ].− ( 9 ) were isolated in addition to known salt [K(THF)]+[ 1 ].− ( 7 ). On contact with air, RAs [ 1 ].− and [ 2 ].− underwent fast decomposition in solution with the formation of anions [ECN]−, which were isolated in the form of salts [K(18-crown-6)]+[ECN]− ( 10 , E=S; 11 , E=Se). In the case of 3 , RA [ 3 ].− was detected by EPR spectroscopy as the first representative of tellurium–nitrogen π-heterocyclic RAs but not isolated. Instead, salt [K(18-crown-6)]+2[ 3 -Te2]2− ( 12 ) featuring a new anionic complex with coordinate Te−Te bond was obtained. On contact with air, salt 12 transformed into salt [K(18-crown-6)]+2[ 3 -Te4- 3 ]2− ( 13 ) containing an anionic complex with two coordinate Te−Te bonds. The structures of 8 – 13 were confirmed by XRD, and the nature of the Te−Te coordinate bond in [ 3 -Te2]2− and [ 3 -Te4- 3 ]2− was studied by DFT calculations and QTAIM analysis. 相似文献
6.
We discuss the notion of spin squeezing considering two mutually exclusive classes of spin-s states, namely, oriented and non-oriented states. Our analysis shows that the oriented states are not squeezed while non-oriented
states exhibit squeezing. We also present a new scheme for construction of spin-s states using 2s spinors oriented along different axes. Taking the case of s=1, we show that the ‘non-oriented’ nature and hence squeezing arise from the intrinsic quantum correlations that exist among
the spinors in the coupled state. 相似文献
7.
I. A. Baidina E. Yu. Filatov E. V. Makotchenko A. I. Smolentsev 《Journal of Structural Chemistry》2012,53(1):112-118
Complex salts of the composition [Co(NH3)6](ReO4)3·2H2O (I), [Co(en)3](ReO4)3 (II), [Co(NH3)5H2O](ReO4)3·2H2O (III), and [Co(NH3)5Cl](ReO4)2·0.5H2O (IV) are obtained. Their crystal structures are determined by single crystal XRD. Crystallographic characteristics: (I) a = 9.9797(3) Å, b = 12.6994(3) Å, c = 14.7415(4) Å, β = 102.870(1)°, C2/c space group; (II) a = 8.0615(3) Å, b = 8.4483(4) Å c = 8.8267(4) Å, α = 61.923(2)°, β = 89.552(2)°, γ = 72.295(2)°, P1 space group; (III) a = 8.0086(4) Å, b = 12.9839(6) Å, c = 17.5122(7) Å, β=91.858(1)°, P21/n space group; (IV) a = 14.9446(3) Å, b = 14.6562(4) Å, c = 12.2434(4) Å, Cmc21 space group. 相似文献
8.
On the basis of the multiple scattering approach in combination with the spin-polarized self-consistent potential calculation, an interpretation is proposed for the spin-polarized x-ray absorption spectra near the Mn K edge in MnP. The effect of the core vacancy potential on the spectra is analyzed and found to be insignificant. The method used for the calculations allowed the separation of the effect of the dipole transition matrix element on the spectra and the effect of the density of unoccupied electron states. It is shown that the transition matrix element causes an intensity redistribution only near the absorption jump, while the difference in the densities of states is most pronounced in the energy region 35–55 eV away from the main edge and leads to a shift in energy for the spectra corresponding to the two spin directions. The effect of the spin-dependent broadening caused by the dependence of the mean free path (as a function of energy) on the photoelectron spin is studied. It is shown that this factor considerably affects only the intensities of the peaks in the energy region lying within less than 12 eV from the main edge. 相似文献
9.
N. K. Smolentsev 《Siberian Mathematical Journal》2001,42(6):1165-1169
Let A
M
be the space of all almost Kahlerian smooth metrics on a symplectic manifold M
2n
, such that the fundamental form of each metric coincides with . It is well known that A
M
is a retractor of the space M of all smooth metrics on M. We show that M is a smooth trivial bundle over A
M
. A similar fact holds also in the case of a contact manifold. 相似文献
10.