ω-Phenylalkyl-substituted zirconocene dichloride complexes as catalyst precursors for homogeneous ethylene polymerization
作者:Erik H Licht、Helmut G Alt、M.Manzurul Karim
DOI:10.1016/s0022-328x(00)00009-7
日期:2000.4
The reaction of ω-phenyl-1-bromoalkanes with cyclopentadienyl sodium, indenyl lithium or fluorenyl lithium forms ω-phenylalkyl-substituted ligand precursors in high yields. The corresponding anions react with zirconium tetrachloride to give ω-phenylalkyl-substituted zirconocene dichloride complexes. After activation with methylaluminoxane, these complexes are highly active catalysts for homogeneous
η<sup>5</sup>-Cyclopentadienyl and η<sup>5</sup>-methylcyclopentadienyl 1,2-bis(dimethylphosphino)ethane complexes of titanium(<scp>II</scp>). The crystal structure of Ti(C<sub>5</sub>H<sub>4</sub>Me)<sub>2</sub>(dmpe)
作者:Gregory S. Girolami、Geoffrey Wilkinson、Mark Thornton-Pett、Michael B. Hursthouse
DOI:10.1039/dt9840002347
日期:——
interaction of the titanium(II) complex trans-TiCl2(dmpe)2 with 2 equivalents of Na(C5H5) or Na(C5H4Me) in diethyl ether gives the dark orange cyclopentadienyl compounds Ti(C5H4R)2(dmpe)(R = H or Me, dmpe = Me2PCH2CH2PMe2). These diamagnetic 18-electron species give n.m.r. spectra consistent with a bent metallocene structure, confirmed by the X-raystructure analysis of Ti(C5H4Me)2(dmpe) for which Ti–P
钛(II)配合物反式-TiCl 2(dmpe)2与二当量的Na(C 5 H 5)或Na(C 5 H 4 Me)在乙醚中的相互作用产生了深橙色的环戊二烯基化合物Ti(C 5 H 4 R)2(dmpe)(R = H或Me,dmpe = Me 2 PCH 2 CH 2 PMe 2)。通过Ti(C 5 H 4)的X射线结构分析证实,这些反磁性的18电子物种给出的nmr光谱与弯曲的茂金属结构一致Me)2(dmpe),其中Ti–P 2.533(6)Å(平均值),Ti–C 2.310(5)–2.441(6)Å,P–Ti–P 76.9(2)°和质心Ti-重心= 135.3(2)°。由于环结合的甲基之间的非键接触,环戊二烯基环非常轻微地向dmpe配体倾斜。
Organolanthanide hydride chemistry. 1. Synthesis and x-ray crystallographic characterization of dimeric organolanthanide and organoyttrium hydride complexes
作者:William J. Evans、James H. Meadows、Andrea L. Wayda、William E. Hunter、Jerry L. Atwood
DOI:10.1021/ja00371a035
日期:1982.4
Hydrogenolysis of (C/sub 5/H/sub 4/R)/sub 2/Ln(t-C/sub 4/H/sub 9/)(OC/sub 4/H/sub 8/) (R = H, CH/sub 3/; Ln = Lu, Er, Y) in toluene at room temperature and atmospheric pressure forms the dimeric hydrides ((C/sub 5/H/sub 4/R)/sub 2/Ln(OC/sub 4/H/sub 8/)(..mu..-H))/sub 2/, which have been characterized by ir and /sup 1/H and /sup 13/C NMR spectroscopy, complexometric analysis, quantitative deuterolysis
Tailoring Precursors for Deposition: Synthesis, Structure, and Thermal Studies of Cyclopentadienylcopper(I) Isocyanide Complexes
作者:A. M. Willcocks、T. Pugh、S. D. Cosham、J. Hamilton、S. L. Sung、T. Heil、P. R. Chalker、P. A. Williams、G. Kociok-Köhn、A. L. Johnson
DOI:10.1021/acs.inorgchem.5b00448
日期:2015.5.18
chemical vapor deposition (LP-CVD) was employed using precursors 2a and 2b to synthesize thin films of metallic copper on silicon, gold, and platinum substrates under a H2 atmosphere. Analysis of the thin films deposited onto both silicon and gold substrates at substrate temperatures of 180 and 300 °C by scanning electron microscopy and atomic force microscopy reveals temperature-dependent growth features:
我们在这里报告基于环戊二烯基和异氰化物配体的铜(I)金属前体家族的合成和表征。几种环戊二烯基铜(I)异氰化物配合物的分子结构已通过单晶X射线衍射分析明确确定。配合物的热解重量分析突出胩配合物[(η异丙5 -C 5 H ^ 5)的Cu(CN我PR)](2A)和叔丁基胩络合物[(η 5 -C 5 H ^ 5)的Cu(CN t Bu)](2b)作为铜金属化学气相沉积(CVD)的前体。通过改变环戊二烯基配体系统上的取代基(在H,Me,Et和i Pr之间变化)对前体进行进一步修饰,可以研究这些变化对稳定性,挥发性和分解等特征的影响。 。作为这种研究的一部分,该复合物的蒸气压2B,[(η 5 -MeC 5 ħ 4)的Cu(CN吨丁基)](3B),[(η 5 -EtC 5 ħ 4)的Cu(CN吨卜)](图4B),和[(η 5 -我已确定在40–65°C的温度范围内PrC 5 H 4)Cu(CN t Bu
ORGANOMETALLIC COMPOUND AND METHOD OF MANUFACTURING INTEGRATED CIRCUIT USING THE SAME
申请人:SAMSUNG ELECTRONICS CO., LTD.
公开号:US20210388010A1
公开(公告)日:2021-12-16
An organometallic compound and a method of manufacturing an integrated circuit (IC) device, the organometallic compound being represented by Formula (I),