Homoleptic borates and aluminates containing the difluorophosphato ligand – [M(O<sub>2</sub>PF<sub>2</sub>)<sub>x</sub>]<sup>y−</sup> – synthesis and characterization
作者:Christoph Schulz、Philipp Eiden、Petra Klose、Andreas Ermantraut、Michael Schmidt、Arnd Garsuch、Ingo Krossing
DOI:10.1039/c5dt00469a
日期:——
tetracoordinate Li[Al(O2PF2)4]. A singly charged WCA was realized by the exchange of the central aluminum atom for boron. The [B(O2PF2)4]− anion was prepared starting from BH3·S(CH3)2 and boron tribromide leading to the protic room temperature Ionic Liquid (IL) [H(S(CH3)2)][B(O2PF2)4] and the neat liquid Brønsted acid H[B(O2PF2)4], respectively, representing a significantly improved synthesis with regard to the
弱配位阴离子(WCAs)与二氟磷酸根配体(O 2 PF 2)是本研究的目标。进行了初步研究,以制备经过充分研究的[Al(OR)4 ] -型均铝酸盐。初始靶结构Li [Al(O 2 PF 2)4 ]的制备由于中心铝原子的路易斯酸性保留而失败。而是形成了Li 3 [Al(O 2 PF 2)6 ]和Al(O 2 PF 2)3用六配位铝原子观察到的H 2 O 3,并通过NMR,IR和X射线晶体学证实。推测这些化合物的可能机理是溶剂诱导的四配位Li [Al(O 2 PF 2)4 ]的歧化。通过将中心铝原子交换为硼,可以实现单电荷WCA。从BH 3 ·S(CH 3)2和三溴化硼开始制备[B(O 2 PF 2)4 ] -阴离子,从而生成质子室温离子液体(IL)[H(S(CH 3)2) ] [B(O 2 PF 2)4 ]和纯净的布朗斯台德酸H [B(O 2 PF 2)4 ]表示相对于Dove等人的第一个实验,合成得到了显着改善。[B(O