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Aitala EM Amato S Anjos JC Appel JA Ashery D Banerjee S Bediaga I Blaylock G Bracker SB Burchat PR Burnstein RA Carter T Carvalho HS Copty NK Costa I Cremaldi LM Darling C Denisenko K Fernandez A Gagnon P Gerzon S Gobel C Gounder K Halling AM Herrera G Hurvits G James C Kasper PA Kwan S Langs DC Leslie J Lundberg B MayTal-Beck S Meadows B de Mello Neto JR Milburn RH de Miranda JM Napier A Nguyen A d'Oliveira AB O'Shaughnessy K Peng KC Perera LP Purohit MV Quinn B Radeztsky S Rafatian A 《Physical review letters》1996,77(12):2384-2387
55.
Zhang J Bond AM MacFarlane DR Forsyth SA Pringle JM Mariotti AW Glowinski AF Wedd AG 《Inorganic chemistry》2005,44(14):5123-5132
The electrochemical reduction of tetrabutylammonium salts of isostructural pairs of polyoxometalates [Bu4N]2[M6O19], [Bu4N]4[alpha-SiM12O40], and [Bu4N]4[alpha-S2M18O62] (M = Mo or W) has been investigated at glassy carbon electrodes in dissolved and surface-confined states in ionic liquids and other media. In the ionic liquid 1-n-butyl-3-methylimidazolium hexafluorophosphate [BMIM][PF(6)], between two and six reversible one-electron-transfer processes were detected. Detailed studies on the process [alpha-S2W18O62](4-/5-) in a range of ionic liquids, water, and conventional organic solvents (containing 0.1 M electrolyte) suggest that the polarity of the medium plays a key role in the determination of the reversible potential. Reduction processes involving very highly charged [alpha-S2W18O62](8-/9-/10-) species are strongly influenced by the purity of the medium. 相似文献
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John K. Hogg Stuart L. James A. Guy Orpen Paul G. Pringle 《Journal of organometallic chemistry》1994,480(1-2):C1-C3
The metallo-phosphaalkenes (η5-C5Me5)(CO)2FeP=C(R)(SiMe3) (Ia: R = SiMe3, Ib: R = Ph) and MeO2C---CC---CO2Me undergo a dipolar [3+2]-cycloaddition to afford the metallo-heterocycles [(η5-C5Me5)(CO)=C(R)SiMe3] (IIIa,b) with exocyclic P=C double bonds. 相似文献
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Lee J. Higham Katie Heslop Paul G. Pringle A. Guy Orpen 《Journal of organometallic chemistry》2004,689(19):2975-2978
Diphosphine 2,2′-bis(di-tert-butylphosphino)methyl)-1,1′-biphenyl (ditbi) is synthesised by the addition of to 2,2′-bis(bromomethyl)-1,1′-biphenyl, followed by deprotection with diethylamine. Treatment of [Rh2Cl2(1,5-cod)2], with ditbi gives [Rh2Cl2(1,5-cod)2(μ-ditbi)] (2) as confirmed by its X-ray crystal structure determination. Hydroformylation of 1-hexene using [Rh(acac)(CO)2]/ditbi as catalyst gave n- and iso-heptanal in a ratio of 1:1. 相似文献
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O. A. Pringle Gary J. Long Dwayne E. Tharp W. J. James Ying-Chang Yang 《Hyperfine Interactions》1988,40(1-4):437-440
We have determined the temperature dependence of the internal hyperfine field, isomer shift, and quadrupole shift at each of the six iron sites in Nd2Fe14B. The hyperfine parameters are consistent with the local iron site environments. The quadrupole and isomer shifts and their temperature dependences support our assignments of the relative ordering of the internal hyperfine fields as j2>k2>ck1>j1>c. We obtain a Mössbauer temperature of 390 K for Nd2Fe14B, which compares well with the Debye temperature of 420K for pure iron. 相似文献
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Pyrrolidines and Piperidines by Ligand‐Enabled Aza‐Heck Cyclizations and Cascades of N‐(Pentafluorobenzoyloxy)carbamates 下载免费PDF全文
Ian R. Hazelden Rafaela C. Carmona Dr. Thomas Langer Prof. Paul G. Pringle Prof. John F. Bower 《Angewandte Chemie (International ed. in English)》2018,57(18):5124-5128
Ligand‐enabled aza‐Heck cyclizations and cascades of N‐(pentafluorobenzoyloxy)carbamates are described. These studies encompass the first examples of efficient non‐biased 6‐exo aza‐Heck cyclizations. The methodology provides direct and flexible access to carbamate protected pyrrolidines and piperidines. 相似文献