描述了具有新配体PP i 3(1)P(CH 2 CH 2 P i Pr 2)3的一系列铁和钌配合物的合成。铁(0)和钌(0)二氮配合物Fe(N 2)(PP i 3)(4)和Ru(N 2)(PP i 3)(5)通过处理铁(II)和钌(II)阳离子物种[FeCl(PP i 3)] + (2)和[RuCl(PP i 3)] + (3)在氮气气氛下用钾石墨。通过分别处理4和5制备了阳离子二氮物种[Fe(N 2)H(PP i 3)] + (6)和[Ru(N 2)H(PP i 3)] + (7),与1当量的弱有机酸。配合物2·[BPH 4 ],3·[BPH 4 ],4,5,和6·[BF 4 ]通过X射线晶体学进行了表征。5的结构表征 是钌(0)二氮配合物的第一份报告。
Ammonia and Hydrazine from Coordinated Dinitrogen by Complexes of Iron(0)
作者:Leslie D. Field、Hsiu L. Li、Scott J. Dalgarno、Ruaraidh D. McIntosh
DOI:10.1002/ejic.201900058
日期:2019.4.16
The iron(0) dinitrogen complexes [Fe(N2)(PP3)] (PP3 = P(CH2CH2PR2)3, R = Ph, iPr, Cy) were synthesized by reduction of the precursor chloro complexes with potassium graphite. On reaction with triflic acid, [Fe(N2)(PP3)] complexes afforded ammonia and hydrazine in yields of up to 23 and 16% respectively. The complex [Fe(N2)(PP3)] which has only been previously synthesized in situ, has now been isolated