Eilatin Complexes of Ruthenium and Osmium. Synthesis, Electrochemical Behavior, and Near-IR Luminescence
作者:Sheba D. Bergman、Dalia Gut、Moshe Kol、Cristiana Sabatini、Andrea Barbieri、Francesco Barigelletti
DOI:10.1021/ic051022v
日期:2005.10.1
characterization of new Ru(II) and Os(II) complexes of the ligand eilatin (1) are described. The new complexes [Ru(bpy)(eil)(2)](2+) (2), [Ru(eil)(3)](2+) (3), and [Os(eil)(3)](2+) (4) (bpy = 2,2'-bipyridine; eil = eilatin) were synthesized and characterized by NMR, fastatombombardmentmass spectrometry, and elemental analysis. In the series of complexes [Ru(bpy)(x)(eil)(y)()](2+) (x + y = 3), the
描述了配体eilatin(1)的新Ru(II)和Os(II)配合物的合成和表征。新复合物[Ru(bpy)(eil)(2)](2+)(2),[Ru(eil)(3)](2+)(3)和[Os(eil)(3)]合成了(2+)(4)(bpy = 2,2'-联吡啶; eil = eilatin),并通过NMR,快速原子轰击质谱和元素分析对其进行了表征。在一系列络合物[Ru(bpy)(x)(eil)(y)()](2+)(x + y = 3)中,用il依次取代bpy对电化学和光物理性质的影响是检查。配合物的吸收光谱在可见光区域(400-600 nm)内表现出数个与bpy和eil相关的pi-pi和金属至配体的电荷转移(MLCT)跃迁,其能量和相对强度取决于数量配体结合到金属中心(x和y)。从[Ru(bpy)(2)(eil)](2+)(5)变为2到3时,d(pi)(Ru)-> pi(eil)MLCT转换经历了从583的红色转变分别为591至599
Buckingham, D. A.; Dwyer, F. P.; Goodwin, H. A., Australian Journal of Chemistry, 1964, vol. 17, p. 315 - 324
作者:Buckingham, D. A.、Dwyer, F. P.、Goodwin, H. A.、Sargeson, A. M.
Kolf; Preetz, Zeitschrift fur Anorganische und Allgemeine Chemie, 1997, vol. 623, # 4, p. 501 - 508
作者:Kolf、Preetz
DOI:——
日期:——
Co-ordination chemistry of higher oxidation states. Part 38. Synthesis, spectroscopic and electrochemical studies of some trans-dihalogenoosmium complexes. Crystal structure of trans-[Os(PMe3)4Cl2]BF4
作者:Neil R. Champness、William Levason、Roy A. S. Mould、Derek Pletcher、Michael Webster
DOI:10.1039/dt9910002777
日期:——
trans-[OsL4X2]BF4(L = PMe3 or AsMe3), but formation of trans-[OsL4X2]BF4(L = PMe2Ph, SbPh3 or py) and cis-[Os(PMe2Ph)4Cl2]BF4 requires HNO3 as oxidant. Use of concentrated HNO3 gives trans-[OsL4X2]2+(L = PMe3, PMe2Ph or AsMe3) in solution, but these have not been isolated. The complexes have been characterised by IR, UV–VIS, and NMR spectroscopies, and the effect of stereochemistry and L and X upon the OsII–OsIII
复合物的反式- [OS(PME 3)4 X 2 ](X = Cl或Br)已从[OS(PPH获得3)3 X 2 ]和PME 3,和反式[OSL - 4 X 2 ] [L = PME 2 PH,ASME 3,灰飞虱3或吡啶(PY)]通过还原适当的锇(III在L的存在下)配合物配合物的顺式- [OS(PR 3)4 X 2 ]是由异构化形成该反式在氯化溶剂中的类似物,以及其他方式。(II)配合物的空气氧化会生成反式-[OsL 4 X 2 ] BF 4(L = PMe 3或AsMe 3),但会形成反式-[OsL 4 X 2 ] BF 4(L = PMe 2 Ph, SbPh 3或py)和顺式[Os(PMe 2 Ph)4 Cl 2 ] BF 4需要HNO 3作为氧化剂。使用浓HNO 3可使反式-[OsL溶液中存在4 X 2 ] 2+(L = PMe 3,PMe 2 Ph或AsMe 3),但尚未分离。通