Study of novel η5-cyclopentadienyl and η6-arene platinum group metal complexes containing a N4-type ligand and their structural characterization
Study of novel η5-cyclopentadienyl and η6-arene platinum group metal complexes containing a N4-type ligand and their structural characterization
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含N4型配体的新型η5-环戊二烯基和η6-芳烃铂族金属配合物及其结构表征的研究
DOI：
10.1016/j.poly.2008.12.050
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发表时间：
2009
期刊：
影响因子：
2.6
通讯作者：
K. M. Rao
中科院分区：
文献类型：
--
作者：
G. Gupta;G. Yap;B. Therrien;K. M. Rao
单核η_5-双金属配合物[（η_5-C_5H_5）Ru（PPh_3）_2Cl]、[（η_5-C_5H_5）Os（PPh_3）_2Br]和五甲基双金属配合物[（η_5-C_5Me_5）Ru（PPh_3）_2Cl]在1 eq.的四齿N，N′-螯合配体3，5-双（2-吡啶基）吡唑（bpp-H）和1当量。在甲醇溶液中，分别得到单核配合物[（η5-C5 H5）Ru（PPh 3）（bpp-H）] PF 6（[1] PF 6）、[（η5-C5 H5）Os（PPh 3）（bpp-H）] PF 6（[2] PF 6）和[（η5-C5 Me 5）Ru（PPh 3）（bpp-H）] PF 6（[3] PF 6）。双核η_5-五甲基钌配合物[（η_5-C_5Me_5）Rh（μ-Cl）Cl]_2和[（η_5-C_5Me_5）Ir（μ-Cl）Cl]_2以及双核η_6-芳烃钌配合物[（η_6-C_6H_6）Ru（μ-Cl）Cl]_2和[（η_6-p-iPrC_6 H_4 Me）Ru（μ-Cl）Cl]_2与2 eq.在NH_4PF_6或NH_4BF_4存在下，将bpp-H的量与Pd反应，得到相应的单核配合物[（η_5-C_5Me_5）Rh（bpp-H）Cl] PF_6（[4] PF_6）、[（η_5-C_5Me_5）Ir（bpp-H）Cl] PF_6（[5] PF_6）、[（η_6-C_6H_6）Ru（bpp-H）Cl] BF_4（[6] BF_4）和[（η_6-p-iPrC_6 H_4 Me）Ru（bpp-H）Cl] BF_4（[7] BF_4）。然而，在1 eq. bpp-H和NH 4 BF 4与相同的η6-芳烃钌配合物反应，分别得到双核盐[（η6-C6 H6）2 Ru 2（bpp）Cl 2] BF 4（[8] BF 4）和[（η6-p-iPrC 6 H4 Me）2 Ru 2（bpp）Cl 2] BF 4（[9] BF 4）。这些化合物已通过IR、NMR、质谱和元素分析进行了表征。用X射线单晶衍射法确定了[1] PF 6、[5] PF 6和[8] BF 4的分子结构，并用紫外-可见光谱法研究了几种典型配合物的结构。
The mononuclear η5-cyclopentadienyl complexes [(η5-C5H5)Ru(PPh3)2Cl], [(η5-C5H5)Os(PPh3)2Br] and pentamethylcyclopentadienyl complex [(η5-C5Me5)Ru(PPh3)2Cl] react in the presence of 1eq. of the tetradentate N,N′-chelating ligand 3,5-bis(2-pyridyl)pyrazole (bpp-H) and 1eq. of NH4PF6in methanol to afford the mononuclear complexes [(η5-C5H5)Ru(PPh3)(bpp-H)]PF6([1]PF6), [(η5-C5H5)Os(PPh3)(bpp-H)]PF6([2]PF6) and [(η5-C5Me5)Ru(PPh3)(bpp-H)]PF6([3]PF6), respectively. The dinuclear η5-pentamethylcyclopentadienyl complexes [(η5-C5Me5)Rh(μ-Cl)Cl]2and [(η5-C5Me5)Ir(μ-Cl)Cl]2as well as the dinuclear η6-arene ruthenium complexes [(η6-C6H6)Ru(μ-Cl)Cl]2and [(η6-p-iPrC6H4Me)Ru(μ-Cl)Cl]2react with 2eq. of bpp-H in the presence of NH4PF6or NH4BF4to afford the corresponding mononuclear complexes [(η5-C5Me5)Rh(bpp-H)Cl]PF6([4]PF6), [(η5-C5Me5)Ir(bpp-H)Cl]PF6([5]PF6), [(η6-C6H6)Ru(bpp-H)Cl]BF4([6]BF4) and [(η6-p-iPrC6H4Me)Ru(bpp-H)Cl]BF4([7]BF4). However, in the presence of 1eq. of bpp-H and NH4BF4the reaction with the same η6-arene ruthenium complexes affords the dinuclear salts [(η6-C6H6)2Ru2(bpp)Cl2]BF4([8]BF4) and [(η6-p-iPrC6H4Me)2Ru2(bpp)Cl2]BF4([9]BF4), respectively. These compounds have been characterized by IR, NMR and mass spectrometry, as well as by elemental analysis. The molecular structures of [1]PF6, [5]PF6and [8]BF4have been established by single crystal X-ray diffraction studies and some representative complexes have been studied by UV–vis spectroscopy.
影响因子：
4.6
作者：
Dovletoglou, A;Adeyemi, SA;Meyer, TJ
通讯作者：
Meyer, TJ