Anilinopyridinate-supported Ru2x+ (x = 5 or 6) paddlewheel complexes with labile axial ligands.
Anilinopyridinate-supported Ru2x+ (x = 5 or 6) paddlewheel complexes with labile axial ligands.
复制标题
苯胺吡啶支持的 Ru2x（x = 5 或 6）叶轮复合物，具有不稳定的轴向配体。
DOI：
10.1039/c6dt04328c
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Berry,JohnF
中科院分区：
文献类型：
--
作者：
Corcos,AmandaR;Berry,JohnF
本文报道并讨论了五种新的金属-金属键合Ru_2化合物：Ru_2（ap）_4 ONO_2（2），[Ru_2（ap）_4 NCMe][BF_4]（3），Ru_2（ap）_4FBF_3（4），Ru_2（ap）_4 OTf（5），[Ru_2（ap）_4 OTf][Ag（OTf）_2]（6）（ap = 2-苯胺基吡啶）。所有的化合物都具有围绕Ru-Ru键的ap配体的（4，0）排列，并且含有一个空间阻断的轴向位点和一个含有不稳定配体的位点。这些化合物显示出这类化合物已知的最短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 4 −配体很容易被取代。尽管存在不稳定的轴向配体，但化合物2-5仍保持高自旋，如通过EPR光谱测定的S = 3/2基态。
Five new metal–metal bonded Ru2 compounds are presented and discussed: Ru2(ap)4ONO2 (2), [Ru2(ap)4NCMe][BF4] (3), Ru2(ap)4FBF3 (4), Ru2(ap)4OTf (5), and [Ru2(ap)4OTf][Ag(OTf)2] (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 BF4− 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.