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101.
102.
Arany A Crowley PJ Fawcett J Hursthouse MB Kariuki BM Light ME Moralee AC Percy JM Salafia V 《Organic & biomolecular chemistry》2004,2(4):455-465
A difluorodienophile, synthesised using a Stille coupling reaction underwent tin(iv)-catalysed cycloaddition with three furans to afford oxa[2.2.1]bicycloheptenes in good yield. Reduction of ester and carbamate carbonyl groups and diol protection as the acetonide set the stage for palladium-catalysed hydrostannylation in two cases. Treatment of the stannanes with methyllithium triggered ring-opening to afford highly-functionalised difluorinated cyclohexenols which could be deprotected to afford (hydroxymethyl)conduritol analogues. 相似文献
103.
Areces P Angeles Durán M Plumet J Hursthouse MB Light ME 《The Journal of organic chemistry》2002,67(10):3506-3509
Some N-substituted-3-azabicyclo[3.3.0]octen-7-one derivatives have been synthesized in an enantiomerically pure form starting from tri-O-acetyl-D-glucal via intramolecular Pauson-Khand (IPK) cycloaddition. 相似文献
104.
Danopoulos AA Winston S Gelbrich T Hursthouse MB Tooze RP 《Chemical communications (Cambridge, England)》2002,(5):482-483
Stable, uncoordinated (1-[2-(6-trimethylsilyl)pyridyl]-3-[(2,6- diisopropyl)phenyl]imidazol-2-ylidene), I, and (1-[beta-(diphenylphosphino)ethyl]-3-[(2,6-diisopropyl)phenyl]imidazol- 2-ylidene), II, have been synthesised; in the solid state they adopt a conformation with the lone pairs in a mutually anti arrangement. 相似文献
105.
106.
Benjamin J. Coe Christopher I. McDonald Simon J. Coles Michael B. Hursthouse 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):963-965
The crystal structure of the heterobimetallic title compound, [ReRuCl(C10H16As2)2(C10H8N2)2(CO)3](PF6)2·2C3H6O, is described. Both metal centres have pseudo‐octahedral coordination geometries, with a facial arrangement of the carbonyl ligands at ReI and a trans disposition of the diarsine ligands at RuII. The dihedral angle between the pyridyl rings of the 4,4′‐bipyridine bridging ligand is 13.9 (6)°. 相似文献
107.
Sorab R. Contractor Michael B. Hursthouse Harold G. Parkes Leylacaron S. Shaw Robert A. Shaw Hamza Yilmaz 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1-3):149-152
Abstract Mono-(N3P3Cl4Y2), bis-(N3P3Cl2Y4) and tris-spiro derivatives (N3P3Y6) have been prepared with ethylene, 1, 3-propylene and 1,4-butylene glycols (Y2 = glycol residue). The 1H NMR spectra of mono- and tris-derivatives are relatively simple; those of the bis- very complex due to the intrinsic asymmetry of the methylene protons. This effect is made use of in studying the replacement pattern of N3P3Cl4 [O (CH2)3O] with primary and secondary amines. Homonuclear 1H decoupling simplifies the spectra and allows an unambiguous distinction to be made between the different isomeric possibilities of the bis amino derivatives N3P3Cl2R2 [O(CH2)3O] where R = amino residue. Primary amines give geminal, secondary amines nongeminal trans-derivatives. The trans-structure of the bis-pyrrolidino derivative has been confirmed by X-ray crystallography. 相似文献
108.
Michael B. Hursthouse Ezzeldine H. Ibrahim Harold G. Parkes Leylacaron S. Shaw Robert A. Shaw David A. Watkins 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1-2):261-266
Abstract The syntheses in solution of (i) 2,4-dialkylamino-, (ii) 2,4-dimethyl-, and (iii) 2,4-diphenyl-2,4-dithio-cyclodiphosph(V)azanes, [R′P(S)NR]2 (R′ = NHR, Ph, or Me; R = alkyl), derived from thiophosphoryl trichloride, methylphosphonothioic and phenylphosphonothioic dichlorides and primary alkylamines are described. N.m.r. spectroscopic properties for these cyclodiphosph(V)azanes and their monomeric precursors, R′P(S)(NHR)2 (R′ = NHR, Ph, or Me; R = alkyl), are presented and structural inferences are drawn from this data. The X-ray crystal structure of [PhP(S)NBui]2 is reported. 相似文献
109.
Dr. Annalisa Mancini Dr. M. Carla Aragoni Dr. Ann L. Bingham Dr. Carlo Castellano Dr. Susanne L. Coles Prof. Francesco Demartin Prof. Michael B. Hursthouse Prof. Francesco Isaia Prof. Vito Lippolis Dr. Giuseppe Maninchedda Dr. Anna Pintus Dr. Massimiliano Arca 《化学:亚洲杂志》2013,8(12):3071-3078
The reactions of 1,3,8,10‐tetrakis(4′‐fluorophenyl)‐4,5,6,7‐tetrathiocino[1,2‐b:3,4‐b′]diimidazolyl‐2,9‐dithione ( 4 ) and molecular diiodine afforded spoke adducts with stoichiometries 4·I2 and 4? 3I2, isolated in the compound 4? 3I2 ? xCH2Cl2 ? (1?x)I2 (x=0.70), and characterized by single‐crystal XRD and FT–Raman spectroscopy. The nature of the reaction products was investigated under the prism of theoretical calculations carried out at the DFT level. The structural data, FT–Raman spectroscopy, and quantum mechanical calculations agree in indicating that the introduction of fluorophenyl substituents results in a lowering of the Lewis basicity of this class of bis(thiocarbonyl) donors compared with alkyl‐substituted tetrathiocino donors and fluorine allows for extended interactions that are responsible for solid‐state crystal packing. 相似文献
110.