کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1307453 | 975140 | 2008 | 5 صفحه PDF | دانلود رایگان |
The synthesis of Al4R4 (R = C5(CH3)4H) (3) and the tetrahedral structure in the solid state are described. These results as well as the 27Al NMR spectra of 3 in solution are in line with the data obtained from DFT calculations. These calculations also support the failed observation of a monomeric AlR species in solution. Monomeric and tetrameric molecules of 3 are discussed with respect to those of (AlCp∗)4 (1) and (AlCp)4 (2). The increasing Al–Al bond strength from 1 to 3 and 2 from X-ray data is also supported by structural and energetic results from DFT calculations.
Structure and Al–Al bond energy of the second substituted Al4Cp4 compound are discussed in comparison to Al4Cp4∗ and its high stability.Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 361, Issue 2, 15 January 2008, Pages 457–461