首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >SYNTHESIS AND STRUCTURAL STUDIES OF FOUR- AND FIVE-COORDINATED MONOMERIC ALKYLALUMINUM O,N-CHELATE COMPOUNDS DERIVED FROM 2-AMINOACETOPHENONE - CRYSTAL AND MOLECULAR STRUCTURE OF THE FIVE-COORDINATED MEAL[O=C(ME)C6H4-2-NH](2) COMPLEX
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SYNTHESIS AND STRUCTURAL STUDIES OF FOUR- AND FIVE-COORDINATED MONOMERIC ALKYLALUMINUM O,N-CHELATE COMPOUNDS DERIVED FROM 2-AMINOACETOPHENONE - CRYSTAL AND MOLECULAR STRUCTURE OF THE FIVE-COORDINATED MEAL[O=C(ME)C6H4-2-NH](2) COMPLEX

机译:四胺基[O = C(ME)C6H4-2-NH] 2-氨基苯乙酮衍生的四,五配位烷基铝,O-N-螯合物的合成与结构研究)复杂

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The reaction of Me(3)Al with 1 and 2 equiv. of 2-aminoacetophenone yielded Me(2)Al[O=C(Me)C6H4-2-NH] (1) and MeAl[O=C(Me)C6H4-2-NH](2) (2), respectively. Compound 2 was also obtained in the reaction of 1 with 1 equiv. of 2-aminoacetophenone. The addition of 4-methylpyridine (py-Me) to 1 produced the Lewis acid-base adduct Me(2)Al[O=C(Me)C6H4-2-NH]. py-Me (3). The resulting compounds have been characterized by elemental analysis, cryometric molecular weight determination and H-1 and Al-27 NMR spectroscopy. These studies revealed that compound 1 has a four-coordinated chelate structure in solution, while 2 and 3 are five-coordinated monomeric complexes. The molecular structure of 2 has been confirmed by single-crystal X-ray crystallography. Copyright (C) 1997 Elsevier Science Ltd. [References: 13]
机译:Me(3)Al与1和2当量的反应2-氨基苯乙酮的分别生成Me(2)Al [O = C(Me)C6H4-2-NH](1)和MeAl [O = C(Me)C6H4-2-NH](2)(2)。在1与1当量的反应中也获得化合物2。 2-氨基苯乙酮。将4-甲基吡啶(py-Me)添加到1中产生路易斯酸碱加合物Me(2)Al [O = C(Me)C6H4-2-NH]。 py-Me(3)。所得化合物已通过元素分析,低温分子量测定以及H-1和Al-27 NMR光谱进行了表征。这些研究表明,化合物1在溶液中具有四配位的螯合物结构,而化合物2和3是五配位的单体配合物。 2的分子结构已经通过单晶X射线晶体学确认。版权所有(C)1997 Elsevier ScienceLtd。[参考:13]

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