Synthesis and Characterization of Monomeric Organogallium−Nitrogen Compounds, Et<sub>2</sub>GaNMe[C<sub>6</sub>H<sub>2</sub>(2,4,6-t-Bu)<sub>3</sub>], Me<sub>2</sub>GaNMe[C<sub>6</sub>H<sub>2</sub>(2,4,6-t-Bu)<sub>3</sub>], MeGa{NH[C<sub>6</sub>H<sub>2</sub>(2,4,6-t-Bu)<sub>3</sub>]}<sub>2</sub>, and Ga{NH[C<sub>6</sub>H<sub>2</sub>(2,4,6-t-Bu)<sub>3</sub>]}<sub>3</sub>
作者:O. T. Beachley,、Daniel B. Rosenblum、David J. MacRae
DOI:10.1021/om001050f
日期:2001.3.1
Four gallium−nitrogen compounds, Et2GaNMe[C6H2(2,4,6-t-Bu)3], Me2GaNMe[C6H2(2,4,6-t-Bu)3], MeGaNH[C6H2(2,4,6-t-Bu)3]}2, and Ga[N(H)C6H2(t-2,4,6-Bu)3]3, have been prepared by metathetical reactions. The monomeric derivatives Et2GaNMe[C6H2(2,4,6-t-Bu)3] and Me2GaNMe[C6H2(2,4,6-t-Bu)3] are of interest because their 1H NMR spectra at room temperature had resonances indicative of two magnetically nonequivalent
四种镓-氮化合物,Et 2 GaNMe [C 6 H 2(2,4,6-t-Bu)3 ],Me 2 GaNMe [C 6 H 2(2,4,6-t-Bu)3 ], MeGa NH [C 6 H 2(2,4,6-t-Bu)3 ]} 2和Ga [N(H)C 6 H 2(t-2,4,6-Bu)3 ] 3,已经通过易位反应制备了。单体衍生物Et 2 GaNMe [C 6 H 2(2,4,6-t-Bu)3 ]和Me 2 GaNMe [C 6 H2(2,4,6-t-Bu)3 ]是令人感兴趣的,因为它们在室温下的1 H NMR光谱具有表明与镓结合的两个磁性不等价有机基团的共振,该光谱特征与围绕镓的旋转受限制相一致氮键。Me 2 GaNMe [C 6 H 2(2,4,6-t-Bu)3 ]的甲苯溶液的可变温度1 H NMR光谱研究确定,绕镓-氮键旋转的障碍约为71 kJ /摩尔 该结果表明空间效应可能是造成这种情况的原因。单体化合物MeGa