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1.
B. M. Bulychev R. A. Lunin V. A. Kul’bachinskii R. V. Shpanchenko V. I. Privalov 《Russian Chemical Bulletin》2004,53(8):1686-1692
One- or two-step reactions of potassium and rubidium fullerides with composition Mk C60 (M = K, Rb; k = 3—6) and K6C60 + m K mixtures (m = 1, 3) with anhydrous salts MCl3 (M = La, Pr, Nd, Sm, Gd, Tb, Yb, Lu, Y, Sc) and YbI2 in a toluene—THF medium afforded heterometallic fullerides M3–nMnC60 (n = 1—3). Among these compounds, substituted fullerides with composition M2MC60 (M = Yb, Lu, Sc) display superconducting properties with critical temperatures of 14—20 K.Published in Russian in Izvestiya Akademii Nauk.
Seriya Khimicheskaya, No. 8, pp. 1623–1628, August, 2004. 相似文献
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Lutetium(III) forms an association compound with a new synthetic reagent, 1,6-bi(1-phenyl-3-methyl-5-pyrazolone-4)hexandione (BPMPHD), and cetyltrimethylammonium bromide (CTMAB). The compound enhances the natural fluorescence of BPMPHD remarkably, upon which a new fluorescence method was developed for determining lutetium in rare earth (RE) samples. The determination range was 1.80 × 10–7–8.8 × 10–6 g/ml. The determination limit was 29 ng/ml. The composition of the ion associate was [Lu(BPMPHD)2]–CTMAB+. 相似文献
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Electrochemical properties of tetra(3,5-di-tert-butyl-4-hydroxyphenyl)dodecachlorophthalocyanine complexes of cobalt(II) and lutetium(III) in DMF solutions have been studied.
It was suggested that in the presence ofn-butyl bromide, the electrochemically generated monoanionic complexes undergo alkylation at the metal atom. The geometries
of the neutral and anionic complexes were calculated by the ZINDO/I semiempirical method.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 289–293, February, 1998. 相似文献
7.
A. Z. Voskoboinikov E. B. Chuklanova A. I. Gusev A. V. Kisin I. P. Beletskaya 《Russian Chemical Bulletin》1993,42(3):547-551
The cluster [Na(DME)3]2[W3(CO)14] (1) was prepared by treating CpLuCl2 with an equimolar mixture of Na2W(CO)5 and Na2W2(CO)10 in DME and characterized by X-ray analysis (MoK
radiation, 653 reflections,R = 0.125). The crystals are rhombic,a=18.749(4) Å,b=15.074(3) Å,c=9.505(3) Å,Z = 2, space groupC
mmm. The W-W distance in the W-W-W chain is 2.79 Å. The carbonyl ligands at the tungsten atoms are eclipsed. Compound 1 is the first example of a homometallic carbonyl cluster of an early transition metal. It is suggested that CpLuCl2 interacts with Na2W(CO)5 to afford the highly reactive species CpLu
(CO)5 which further reacts with Na2W2(CO)10 to form1.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 582–585, March, 1993. 相似文献
8.
The conditions of formation of complex lanthanide chromate(VI)-phosphates K2R(CrO4)(PO4) were found and these compounds were synthesized by solid-state synthesis with variation of the starting compounds, the temperature
of synthesis (500–800 °C), and the annealing time (6–200 h). These salts are typical of late lanthanides, R = Dy-Lu, Y. Using
lutetium derivatives as examples, it was shown that no similar compounds with lithium or sodium are formed. All the complex
chromate(VI)-phosphates obtained decompose under static conditions at temperatures above 550 °C. They are isostructural and crystallize
in the monoclinic system. The unit cell parameters for thulium, ytterbium, and lutetium compounds were calculated. It is shown
by IR spectroscopy that PO4 tetrahedra in the crystal lattice of potassium lanthanide chromate(VI)-phosphates are substantially distorted, whereas the CrO4 tetrahedra retain the regular tetrahedron symmetry (T
d
).
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 622–626, April, 2006. 相似文献
9.
D. M. Roitershtein K. A. Lyssenko P. A. Belyakov M. Yu. Antipin E. S. Petrov 《Russian Chemical Bulletin》1997,46(9):1590-1594
The reaction of the cyclopentadienyllutetium anthracenide, C5H5Lu(C14H10)2−(THF)2 (1), with azobenzene yielded the [C5H5(THF)Lu(μ−η2:η2−PhN—NPh)]2(THF)2 (2) binuclear complex. The structure of the reaction product was established by X-ray structural analysis. The dynamic behavior
of complex2 in a THF-d8 solution was studied by1H NMR spectroscopy in the temperature range of 265–330 K.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1667–1671, September, 1997. 相似文献
10.
V. V. Gavrilenko L. A. Chekulaeva I. A. Savitskaya I. A. Garbuzova 《Russian Chemical Bulletin》1992,41(11):1957-1959
A convenient and practical method is proposed for the synthesis of lanthanide and yttrium alkoxides. The method involves dissolving the metals or their hydrides in a solution of dry HCl in the corresponding alcohol, with subsequent dehalogenation of the LnCl3 solution by an equivalent amount of alkali metal (Na, Li), The rareearth alkoxides are easily converted into acetylacetonates Ln(acac)3 by the action of acetylacetone.A. N. Nesmeyanov Institute of Elementoorganic Compounds, Russian Academy of Sciences, 117813 Moscow. Translated fromIzvestiya Akademii Nauk, Seriya Khimicheskaya, No. 11, pp. 2490–2493, November, 1992. 相似文献