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Efficient Catalytic Conversion of Dinitrogen to N(SiMe3)3 Using a Homogeneous Mononuclear Cobalt Complex
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-03-05 00:00:00 , DOI: 10.1021/acscatal.7b04351
Tatsuya Suzuki 1, 2 , Keisuke Fujimoto 2 , Yoshiyuki Takemoto 2 , Yuko Wasada-Tsutsui 2 , Tomohiro Ozawa 2 , Tomohiko Inomata 2 , Michael D. Fryzuk 1 , Hideki Masuda 2
Affiliation  

Incorporation of the tridentate phosphine-enamidoiminophosphorane onto cobalt(II) produces tetrahedral Co(NpNPiPr)Cl, 1, which upon reduction under dinitrogen generates the T-shaped, paramagnetic Co(I) complex Co(NpNPiPr), 2. This paramagnetic T-shaped derivative is in equilibrium with the paramagnetic dinitrogen derivative Co(NpNPiPr)(N2), 3, which can be detected by IR and low-temperature UV–vis spectroscopy. Both 1 and 2 act as homogeneous catalysts for the conversion of molecular nitrogen into tris(trimethylsilyl)amine (N(SiMe3)3) (∼200 equiv, quantified as NH4Cl after hydrolysis) in the presence of excess KC8 and Me3SiCl at low temperatures.

中文翻译:

均相单核钴配合物将二氮高效催化转化为N(SiMe 33

将三齿膦-烯胺基氨基正膦结合到钴(II)上产生四面体Co(NpNP iPr)Cl,1,在二氮中还原后生成T形顺磁性Co(I)络合物Co(NpNP iPr),2。这种顺磁性的T形衍生物与顺磁性的二氮衍生物Co(NpNP iPr)(N 2),3处于平衡状态,可以通过红外和低温紫外可见光谱法对其进行检测。既12充当分子氮转化均相催化剂为三(三甲基硅烷基)胺(N(森达33)(〜200当量,水解后定量为NH 4 Cl)在低温下存在过量KC 8和Me 3 SiCl的情况下。
更新日期:2018-03-05
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