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An unprecedented transformation mode in aluminium oxazoline-amido-phenolate complexes |
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| Authors: | Ming-Tsz Chen Yu-Yang Chen Guan-Lin Li Kai-Wen Chou Ching-Han Hu Guo-Cyuan Huang Chi-Tien Chen |
| Institution: | 1. Department of Applied Chemistry, Providence University, Taichung, 43301 Taiwan, ROC;2. Department of Chemistry, National Changhua University of Education, Changhua, 500 Taiwan, ROC;3. Department of Chemistry, National Chung Hsing University, Taichung, 402 Taiwan, ROC |
| Abstract: | This paper describes the effect of solvent-induced synthetic routes of aluminium pendant oxazoline-amido-phenolate complexes. Treatment of ligand precursor L with AlMe3 in a 1:1 ratio in diethyl ether yielded the four-coordinated complex (LAlMe)2. Reaction of ligand precursor L with AlMe3 in a 1:2 ratio in hexane generated the four-coordinated complex L(AlMe2)2. A novel transformation mode occurred from L(AlMe2)2 to (LAlMe)2 when using diethyl ether or tetrahydrofuran as solvent. A density functional theory computational study also supports a plausible mechanism. All results were supported by spectroscopic data and in agreement with single-crystal X-ray diffraction structural analysis. |
| Keywords: | aluminium complexes density functional calculations homogeneous catalysis organometallic compounds solvent-switch reaction |