[(1,3-bis(diphenylphosphino)propane)Ni(CH3)2] 、 [H(OEt2)2][B(3,5-C6H3(CF3)2)4] 以
not given 为溶剂,
生成 [(1,3-bis(diphenylphosphino)propane)Ni(CH3)(diethyl ether)][B(3,5-(CF3)2C6H3)4]
Alcohol Complexes of Tungsten Prepared by Ionic Hydrogenations of Ketones
作者:Jeong-Sup Song、David J. Szalda、R. Morris Bullock
DOI:10.1021/om010222l
日期:2001.7.1
gives related [Cp(CO)3W(alcohol)]+OTf- complexes. Aldehydes are selectively hydrogenated over ketones, and alkyl ketones are selectively hydrogenated over aromatic ketones. Hydrogenation of acetophenone gives ethylbenzene, with no intermediate tungsten complexes being observed. Reaction of 1-phenyl-1,3-butanedione with Cp(CO)3WH and HOTf gave Cp(CO)3W[CH3CH(OH)CH2C(O)Ph]}+OTf -, the structure of which
由CP(CO)的丙酮氢化离子3 WH和HOTf(OTF = OSO 2 CF 3),得到2-丙醇复杂的[Cp(CO)3 W(HO我PR)] +光学传递函数- 。1 H NMR数据表明,醇OH与溶液中的三氟甲磺酸根阴离子的氧之间存在OH-·O氢键,该配合物的晶体结构表明氢键也以固态存在。短的O···O距离为2.63(1)Å表示氢键很强。其它酮和醛的加氢给出了相关的[Cp(CO)3 W(醇)] +光学传递函数-复合体。醛在酮上选择性地氢化,烷基酮在芳族酮上选择性地氢化。苯乙酮加氢生成乙苯,未观察到任何中间体钨配合物。1-苯基-1,3-丁二酮与CP(CO)的反应3 WH和HOTf,得到CP(CO)3 W [CH 3 CH(OH)CH 2 C(O)PH]} +光学传递函数- ,结构其通过X射线衍射测定。的醇配合物的[Cp(CO)3 W(醇)] +光学传递函数-分解溶液中,得到游离醇类和CP(CO)3
作者:Steffen Oßwald、Stefanie Breimaier、Michael Linseis、Rainer F. Winter
DOI:10.1021/acs.organomet.7b00194
日期:2017.5.22
spectroscopic properties are strongly influenced by the para substituents at the triarylmethylium ligands. The complexes were characterized in up to four different oxidationstates up to the trication level and show pronounced electrochromism. The oxidized mixed-valent dirutheniumcomplex 52+ shows a moderate degree of charge and spin delocalization over the styryl ruthenium sites.
制备了具有氧化还原活性三芳基甲基鎓配体的一系列的四个单核和一个双核钌苯乙烯基配合物。所有新化合物均通过NMR光谱,MS光谱,循环伏安法进行表征,并通过IR和UV / vis / NIR和EPR光谱以各种氧化态进行表征。通过引入乙烯基钌实体,共轭长度的增加将电子吸收推向低能量,几乎进入了近红外区域。电化学和光谱性质受到三芳基甲基鎓配体上对位取代基的强烈影响。在高达三阳离子水平的情况下,络合物的特征是多达四种不同的氧化态,并表现出明显的电致变色现象。氧化的混合价二钌络合物5 2+ 在苯乙烯钌位置上显示适度的电荷和自旋离域。
Stepwise hydrogenation of an arylthiophosphinidene isocyanide complex to give tethered aldimine and aminocarbene functions
作者:M. Angeles Alvarez、Belén Alvarez、M. Esther García、Daniel García-Vivó、Miguel A. Ruiz
DOI:10.1039/c3dt51562a
日期:——
[Mo2Cp2(μ–κ2P,S:κ1P,η4-SPMes*)(CNtBu)(CO)2] (Mes* = 2,4,6-C6H2tBu3) completes a hydrocarbation or hydronitration of the uncoordinated CC bond of the Mes* ring, yielding new ligands with thiophosphinidene and aldimine or aminocarbene functions tethered to a η4-cyclohexadiene ring. The H− ion first attacks a Cp group to give a cyclopentadiene complex which evolves via a hydride intermediate.
Cationic Four- and Five-Coordinate Nickel(II) Complexes: Insights into the Nickel(II)-Catalyzed Copolymerization of Ethylene and Carbon Monoxide
作者:C. Scott Shultz、Joseph M. DeSimone、Maurice Brookhart
DOI:10.1021/om0008023
日期:2001.1.1
dppp-derived Ni(II) catalyst system 2, several four- and five-coordinate intermediates relevant to the alternating copolymerization of ethylene and carbon monoxide have been characterized. In addition, the activation barriers for the migratoryinsertion steps corresponding to chaingrowth have been determined to be at or below ca. 10 kcal/mol, indicating that a strongly stabilized catalyst resting state