Complexes of osmium halides with monodentate and bidentate ligands
作者:M.M. Taqui Khan、S. Shareef Ahamed、Robert A. Levenson
DOI:10.1016/0022-1902(76)80235-7
日期:1976.1
Complexes of osmium halides with donor ligands L (L = PPh3, AsPh3, SbPh3, PMePh2, C2H4(AsPh2)2, PPr2nPh, CH2(AsPh2)2) have been prepared. The IR and NMR spectra of complexes of the type trans-[OsCl4L2], fac-[OsX3L3] and trans-[OsX2L4] are recorded and discussed. For the trans complexes the halogen sensitive modes occur near those of the related [OsX4]2− species. Tentative assignments for ν(OsY) (Y
制备了卤化with与供体配体L(L = PPh 3,AsPh 3,SbPh 3,PMePh 2,C 2 H 4(AsPh 2)2,PPr 2 n Ph,CH 2(AsPh 2)2)的配合物。记录并讨论了反式-[OsCl 4 L 2 ],fac- [OsX 3 L 3 ]和反式-[OsX 2 L 4 ]类型的配合物的IR和NMR光谱。为了反式配合物卤素敏感模式发生在相关的[OsX 4 ] 2-物种附近。在实验结果的基础上讨论了ν(Os(Y)(Y = P,As,Sb)的暂定分配。记录并讨论了所选配合物的拉曼光谱和ESR光谱。NMR数据表明在反式-(OsCl 4(CH 2(AsPh 2)2)2)·C 2 H 5 OH中存在单齿二砷配体。
Platinum-metal complexes containing four or five diphenylphosphine ligands
作者:J. R. Sanders
DOI:10.1039/j19710002991
日期:——
Convenient syntheses of the complexes trans- and cis-[MCl2(HPPh2)4](M = Ru or Os) and cis-[ReCl2(PPh2)-(HPPh2)3], and of salts of the [Rh(HPPh2)4]+, [Ir(CO)(HPPh2)4]+, [RuH(HPPh2)5]+, and trans-[RuH(CO)(HPPh2)4]+ cations are described. The structures and properties of these complexes, including the formation of cis-[OsH2(HPPh2)4], are discussed.
Synthesis and Reaction of the Novel Complex [AsPh<sub>4</sub>][OsCl<sub>5</sub>(H<sub>2</sub>O)]. X-ray Structure Analysis of [AsPh<sub>4</sub>][OsCl<sub>5</sub>(H<sub>2</sub>O)]·2EtOH and [AsPh<sub>4</sub>][OsCl<sub>5</sub>(EtOH)]·EtOH
作者:Andrei Maiboroda、Gerd Rheinwald、Heinrich Lang
DOI:10.1021/ic000084c
日期:2000.12.1
The synthesis and characterization of the anionic mononuclear and homobinuclear osmiumcomplexes [AsPh4][OsCl5L].xEtOH [L = H2O, x = 2 (9); L = EtOH, x = 1 (10a); L = py, x = 0 (10b)] and [AsPh4]2[Cl5Os(pyz)OsCl5] (12) (pyz = pyrazine) are described. Upon reduction in a chloride-containing medium, OsO4 (1) affords the osmium(IV) species [OsCl5(H2O)]- (2), which could be isolated by extraction with
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
Electrophilic behaviour of co-ordinated nitrogen mono-oxide: preparation and reactions of halogenonitrosylbis[o-phenylenebis(dimethylarsine)]osmium complexes
作者:Frank Bottomley、Enos M. R. Kiremire
DOI:10.1039/dt9770001125
日期:——
trans-[Os(pdma)2(NO)(OH)]Cl2. Treatment of trans-[Os(pdma)2Cl(NO)]Cl2·H2O with phenylhydrazine gives trans-[Os(pdma)2Cl(N2)]Cl and [Os(pdma)2Cl(ONNNHPh)]. The latter complex undergoes free-radical reactions with O2 in various solvents to give [Os(pdma)2Cl(N2)]Cl, [Os(pdma)2Cl(NO2)], or [Os(pdma)2Cl(NO)]Cl2·H2O, or mixtures of these, depending on the conditions. The complex [Os(pdma)2Cl(NO)]Cl2·H2O and