Photochemical decomposition of (diphenyl)bis(η5-cyclopentadienyl) titanium, (diphenyl)bis(η5-pentamethylcyclopentadienyl) titanium and the zirconium analogs
IR spectroscopic investigations into reactions between unsaturated titanium complexes and CO or N2 in liquid xenon or heptane
作者:M. Tacke、A. Oskam、D.J. Stufkens、J.H. Teuben、G.A. Luinstra、J.M. de Wolf、Ch. Tacke
DOI:10.1016/s0022-2860(96)09522-1
日期:1997.6
Cp-2*Ti(CO)(2) seems to be the driving force of the observed reactions. A similar behavior was found in the reaction of Cp-2*TiH with dinitrogen, where the adduct Cp-2*TiH(N-2) and its N-14'15(2) isotopomer was identified together with Cp-2*Ti(N-2)(2). In addition to these orientating experiments, the stable 15 VE Cp*FvTi (Fv = eta(6)-C5Me4CH2) and 16 VE species Cp*AdTi (Ad = eta(7)-C5Me3(CH2)(2)) show
Cp-2*TiR 化合物与 CO 在液态氙 (LXe) 或庚烷中的反应通过红外光谱在特殊高压池中进行研究。所有配合物都包含单个 CO 分子以填充其配位球,形成 Cp-2*TiR(CO) 中间体。这些物质在升高的温度下会发生二次反应,例如歧化为 Ti(II) 和 Ti(IV) 络合物。18 VE 物种 Cp-2*Ti(CO)(2) 的形成似乎是观察到的反应的驱动力。在 Cp-2*TiH 与二氮的反应中发现了类似的行为,其中加合物 Cp-2*TiH(N-2) 及其 N-14'15(2) 同位素异构体与 Cp-2*Ti 一起被鉴定(N-2)(2)。除了这些定向实验,稳定的 15 VE Cp*FvTi (Fv = eta(6)-C5Me4 ) 和 16 种 VE 物种 Cp*AdTi (Ad = eta(7)-C5Me3(CH2)(2)) 表明添加了一氧化碳形成新的,反应性羰基钛,在较高温度下进行配体交换反应并形成
Synthesis, Structure, and Reactions of Stable Titanacyclopentanes
作者:Kazushi Mashima、Nozomu Sakai、Hidemasa Takaya
DOI:10.1246/bcsj.64.2475
日期:1991.8
reflections, R=0.053). The reaction of 5 with carbon monoxide afforded spiro[2.4]heptan-5-ones in 98% yield. The thermal decomposition of 5 has been investigated, and possible mechanisms of the reactions have been proposed based on deuterium-labeled experiments. A novel formal reductive elimination of organic ligands giving 1-phenylspiro[2.4]hexane has been observed in the thermolysis of 5b. A structure–reactivity
Highly reduced organometallics. 33. Carbonyl hydrides of titanium and corresponding carbonyltitanates
作者:John E. Ellis、Beatrice Kelsey Stein、Scott R. Frerichs
DOI:10.1021/ja00063a027
日期:1993.5
provided new zerovalent titanium carbonyls of the general formula [(C 5 R 5 )Ti(CO) 3 (PR 3 )] - . Disubstituted phosphine derivatives of the formula [(C 5 R 5 )Ti(CO) 2 (dmpe)] - were obtained by the alkali metal naphthalenide promoted reductive cleavages of titanocene dicarbonyls (C 5 R 5 ) 2 Ti(CO) 2 (R=H, Me) in the presence of dmpe, i.e., 1,2-bis(dimethylphosphino)ethane.
[(C 5 R 5 )Ti(CO) 4 ] - (R=H, Me) 与有机膦的光促进取代反应首次被研究,并提供了通式 [(C 5 R 5 )Ti(CO) 3 (PR 3 )] - 。式[(C 5 R 5 )Ti(CO) 2 (dmpe)]的二取代膦衍生物是通过碱金属萘化物促进二茂钛二羰基化合物(C 5 R 5 ) 2 Ti(CO) 2 (R =H,Me)在dmpe,即1,2-双(二甲基膦基)乙烷的存在下。
Neue synthesen und reaktionen ungesättigter heterotitanacyclen
作者:Stefan Dürr、Udo Höhlein、Rainer Schobert
DOI:10.1016/0022-328x(93)80460-s
日期:1993.10
fragment by carbon (formation of vinylenic carbonates and the thia-derivatives of these) or by further heteroatoms like boron or phosphorus (formation of boroles and phosphoric acid derivatives), thus retaining the cyclofunctionality. Alternatively, some of the new chelate complexes can be readily CC-chain-lengthened via a deprotonating/alkylating sequence, leaving the metallacycle unaffected.
Interaction of carbon dioxide with the bis(trimethylsilyl)acetylene complex of permethyltitanocene: synthesis and structure of the binuclear carbonate complex of permethyltitanocene (Cp2∗Ti)2CO3
interaction of carbondioxide with the bis(trimethylsilyl)acetylene complex of permethyltitanocene Cp2∗Ti(Me3SiC2SiMe3), full displacement of bis(trimethylsilyl)acetylene from the titanium coordination sphere takes place and carbondioxide undergoes disproportionation to form Cp2∗Ti(CO)2 and the binuclear carbonate complex of permethyltitanocene (Cp2∗Ti)2CO3. The structure of (Cp2∗Ti)2CO3 has been established
结果表明,在二氧化碳与全甲基噻吩并茂Cp 2 ∗ Ti(Me 3 SiC 2 SiMe 3)的双(三甲基甲硅烷基)乙炔配合物的相互作用中,双(三甲基甲硅烷基)乙炔从钛配位球中完全取代,并且二氧化碳歧化形成Cp 2 ∗ Ti(CO)2和全甲基钛并茂(Cp 2 ∗ Ti)2 CO 3的双核碳酸盐配合物。(Cp 2 ∗ Ti)2 CO 3的结构通过X射线衍射研究已经建立。还报告了有关含氯碳酸盐复合物Cp 2 * Ti(Cl)CO 3 TiCp 2 *的结构数据。