共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
3.
4.
The Tris(cyclopentadienyl)methylsilane Trianion – a New Ligand System and Complex Formation with Rhodium Starting from MeSiCl3 the title compound was synthesized by two steps as the virtually insoluble trithallium salt ( 1 ). Reaction of 1 with [(C2H4)2RhCl]2 in pentane gives {MeSi[C5H4Rh(C2H4)2]3} ( 2 ). Under UV irradiation of 2 in pentane in the presence of benzene only two [C5H4Rh(C2H4)2] units of 2 react with loss of ethene and formation of the μ-η3 : η3 benzene compound {MeSi[(C5H4Rh)2(C6H6)][C5H4Rh(C2H4)2]} ( 3 ). The novel complexes 2 and 3 were characterized spectroscopically and by X-ray structure analysis. 相似文献
5.
6.
7.
8.
9.
10.
11.
12.
Ag4Bi2O5 — A Novel Silverbismuthate(III) Yellow single crystals of Ag4Bi2O5 have been obtained for the first time by solid state reaction of Ag2O and Bi2O3 applying an oxygen pressure of 10 MPa at a temperature of 473 K. According to the results of a single crystal structure determination (Pnna, a = 1428.3(2), b = 569.2(1), c = 877.7(1) pm, Z = 4, 1544 diffractometer data, R1 = 0.050, wR2 = 0.094) the anionic partial structure of Ag4Bi2O5 consists of chains of corner and edge sharing BiO4-units. The silveratoms form a network of threedimensionally connected trigonal bipyramides with Ag? Ag-contacts between 285 and 323 pm. 相似文献
13.
14.
15.
Na10Zn4O9, a Novel Oxozincate with Trigonal Planar Coordinated Zinc Using a new preparation method for sodium oxometallates we have succeeded in the synthesis of the new ternary oxide Na10Zn4O9. Active ZnO reacted with Na2O generated in situ from NaN3 and NaNO2. The compound consists of ZnO4 tetrahedra which are connected via edges and corners to form layers of the composition ZnO2. Furthermore, the structure was found to contain isolated, trigonal planar ZnO3 units. 21 of 60 Na+ ions within the unit cell are disordered. Na10Zn4O9 crystallizes in the space group R3 m (Nr. 166). The lattice constants are: a = 10.815(3), c = 17.930(7) Å; Z = 6; 8056 reflections; R = 0.062. The sodium ion conductivity at 400°C is 6 × 10?3 Ω?1 cm?1. 相似文献
16.
17.
18.
19.