Corcos Amanda R, Berry John F
Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, WI 53706, USA.
Dalton Trans. 2017 May 2;46(17):5532-5539. doi: 10.1039/c6dt04328c.
Five new metal-metal bonded Ru compounds are presented and discussed: Ru(ap)ONO (2), [Ru(ap)NCMe][BF] (3), Ru(ap)FBF (4), Ru(ap)OTf (5), and [Ru(ap)OTf][Ag(OTf)] (6) (ap = 2-anilinopyridinate). All compounds have a (4,0) arrangement of the ap ligands about the Ru-Ru bond and contain one sterically blocked axial site and one site containing a labile ligand. These compounds display some of the shortest Ru-Ru distances known for this class of compounds. We demonstrate a reversible interconversion between compounds 3 and 4 as the MeCN and BF ligands are readily displaced. Despite the presence of labile axial ligands, compounds 2-5 remain high spin with an S = 3/2 ground state as determined by EPR spectroscopy.
本文介绍并讨论了五种新型金属-金属键合的钌化合物：Ru(ap)ONO（2）、[Ru(ap)NCMe][BF]（3）、Ru(ap)FBF（4）、Ru(ap)OTf（5）和[Ru(ap)OTf][Ag(OTf)]（6）（ap = 2-苯胺基吡啶盐）。所有化合物围绕Ru-Ru键具有ap配体的(4,0)排列，并且包含一个空间位阻轴向位点和一个含有不稳定配体的位点。这些化合物展示出这类化合物中已知的一些最短的Ru-Ru距离。我们证明了化合物3和4之间的可逆相互转化，因为MeCN和BF配体很容易被取代。尽管存在不稳定的轴向配体，但通过电子顺磁共振光谱测定，化合物2-5仍保持高自旋，基态为S = 3/2。
