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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
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Pasynskii A. A. Semenova N. I. Torubaev Yu. V. Belousov P. V. Lyssenko K. A. Dobrokhotova Zh. V. 《Russian Chemical Bulletin》2001,50(11):2215-2220
Transmetallation of the Fe3(3-X)2(CO)9 clusters (X = S, Se, or Te) under the action of (-C8H12)PtCl2 afforded new heterometallic clusters (-C8H12)Pt(3-X)2Fe2(CO)6 (2—4, respectively), which were characterized by X-ray diffraction analysis. The (-C8H12)Pt fragment in these clusters is bound to two 3-bridging chalcogen atoms X. The iron atoms are linked to each other. The coordination environment about the Pt atom is planar-square; the Pt...Fe distance is larger than 3.2 . In the synthesis of cluster 4, a new Pt complex was also obtained for which the structure (CO)2Pt(-Te)2Pt(CO)2 (5) was proposed. According to the results of differential scanning calorimetry, thermal decomposition of complex 5 gave rise only to PtTe, whereas complexes 1—4 gave products with the empirical formula Fe2PtX2C2O2. The influence of the steric effects on the geometry of the clusters is discussed. 相似文献
5.
Yu.S. Nekrasov D.V. Zagorevskii V.F. Sizoi A.A. Kalinnikov A.A. Pasynskii 《Journal of organometallic chemistry》1975,97(2):203-212
Mass spectra of dimeric (π-cyclopentadienyl)dicarboxylatovanadium complexes [π-C5H5V(OOCR)2]2, have been studied. The principal paths of fragmentation of the trihaloalkyl derivatives involve the formation of VHal bonds, whereas VO bonds are formed during decomposition of acetato and formato complexes. An unusual increase in stability of dimeric and monomeric ions of the alkyl derivatives is observed in going from R = CH3 to R = CF3. With aromatic complexes, only ions containing a single metal atom occur. 相似文献
6.
A. A. Pasynskii I. L. Eremenko Yu. V. Rakitin B. Orazsakhatov V. M. Novotortsev O. G. Ellert V. T. Kalinnikov 《Journal of organometallic chemistry》1981,210(3):377-384
Isostructural heterotrinuclear complexes (C5H5CrSCMe3)2S · M(CO)5 (II–IV) were isolated from photochemical reactions between the antiferromagnetic complex (C5H5CrSCMe3)2S (I) (with the Cr---Cr bond 2.689 Å long and with the exchange parameter −2J = 430 cm−1) and metal hexacarbonyls, M(CO)6, where M is Cr, Mo, or W. According to the X-ray structural data on III and IV, complex I plays the role of an unusual antiferromagnetic ligand L bound to M through the sulphide bridge (M–S 2.58(2) Å). Its geometry remains practically unaffected by the complex formation (the Cr---Cr bond length in III and IV is 2.73(1) Å). The exchange parameter, −2J (410, 440 and 440 cm−1 in II to IV, respectively), also shifts only insignificantly from that of I, which probably means that indirect exchange via the sulphide bridge in I is of minor importance compared with the direct Cr---Cr exchange. The Cr---Cr bond length may thus be correlated with the observed overall exchange coupling. 相似文献
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Yu. V. Torubaev A. A. Pasynskii P. Mathur 《Russian Journal of Coordination Chemistry》2008,34(11):799-804
A reaction of the tetramer [PhTeI]4 with Fe(CO)5 gave the monomeric complex (CO)3FeI2(Ph2Te2) (I) containing a diphenyl ditelluride molecule linked with cis-tricarbonyldiiodoiron. According to X-ray diffraction data, the Fe-Te distance in complex I (2.5724(6) ?) is appreciably shorter than the sum of the covalent Fe and Te radii and the Te-Te bond (2.7705(5) ?) is only
slightly longer than that in free Ph2Te2 (2.705(1) ?). In the reaction of Fe(CO)5 with PhTeI3, a complex with PhTeI as a ligand to the transition metal atom was obtained for the first time. Unlike free PhTeI, the resulting
complex (CO)3FeI2(PhTeI) (II) is stable in air at room temperature for several days. According to X-ray diffraction data, the ligand PhTeI (Te-C 2.126(4)
?, Te-I(3) 2.7548(5) ?) is stabilized by the coordination of tellurium to both the iron (Te-Fe 2.5451(6) ?) and iodine atoms
(Te(1)-I(1) 3.1634(5) ?). The latter coordination probably involves the vacant d orbital of tellurium and the lone electron pair on the iodide ligand.
Original Russian Text ? Yu.V. Torubaev, A.A. Pasynskii, P. Mathur, 2008, published in Koordinatsionnaya Khimiya, 2008, Vol.
34, No. 11, pp. 807–811. 相似文献
9.
A. I. Blokhin A. A. Pasynskii Yu. V. Torubaev 《Russian Journal of Coordination Chemistry》2010,36(7):490-496
The reaction of [CpMn(CO)(NO)]2 (I) with an equimolar amount of tin dichloride in THF at room temperature gave the product of tin insertion into the Mn-Mn bond, the carbonyl nitrosyl complex [CpMn(CO)(NO)]2SnCl2 (II). The same complex was formed on treatment of CpMn(CO)(NO)SnCl3 with sodium borohydride. Treatment of I with an excess of anhydrous tin dichloride under the same conditions gave the trinitrosyl complex Cp2Mn2(NO)(μ-NO)2SnCl3 (III). According to X-ray diffraction, II contains a Mn-Sn-Mn chain with highly shortened Mn-Sn bonds (2.5570(2) and 2.5754(2) Å). Compound III contains a Mn-Mn-Sn chain (Mn-Mn, 2.5358(10); Mn-Sn, 2.5604(8) Å) with the Mn-Mn bond supplemented by two nitrosyl bridges and one terminal NO group. 相似文献
10.
A. A. Pasynskii I. V. Skabitskii M. V. Karpacheva 《Russian Journal of Coordination Chemistry》2013,39(3):229-233
A reaction of the disulfide complex [CpMn(CO)2]2S2 with the Ni(0) diphosphine acetylene complex, (Dppe)Ni(C2Ph2) (I), yielded the heterometallic complex [CpMn(CO)2]2S2Ni(Dppe) (II). An X-ray diffraction study revealed lateral coordination of the disulfide group to the Ni atom in complex II, which results in lengthening of both the S-S and Mn-S bonds against those in the starting complex. However, the Mn-S and Ni-S bonds are still much shorter than the sums of the covalent radii of the corresponding atoms. 相似文献