摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

hafnium isopropoxide | 1085718-85-9

中文名称
——
中文别名
——
英文名称
hafnium isopropoxide
英文别名
hafnium(IV) isopropoxide;hafnium(IV) 2-propoxide;hafnium(IV) tetraisopropoxide;hafnium isopropylate;hafnium tetraisopropoxide;tetraisopropoxy hafnium;Hf(iso-propoxide)4;[Hf(O-i-Pr)4];Hf(iPrO)4;hafnium (IV) i-propoxide monoisopropylate;hafnium(IV) isoproxide;hafnium(4+);propan-2-olate
hafnium isopropoxide化学式
CAS
1085718-85-9
化学式
C12H28HfO4
mdl
——
分子量
414.842
InChiKey
HRDRRWUDXWRQTB-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    3.79
  • 重原子数:
    17
  • 可旋转键数:
    0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    92.2
  • 氢给体数:
    0
  • 氢受体数:
    4

反应信息

  • 作为反应物:
    描述:
    hafnium isopropoxideair氧气 作用下, 以 neat (no solvent) 为溶剂, 生成 hafnium(IV) oxide
    参考文献:
    名称:
    Sol-Gel Synthesis of High-kHfO2Thin Films
    摘要:
    采用醇解性前体溶液制备HfO₂薄膜。研究了前体溶液的化学组成对HfO₂薄膜微观结构发展的影响,特别是这些薄膜在硅衬底上的表现。通过添加或不添加二乙醇胺的前体溶液制备的HfO₂薄膜显示出不同的微观结构。这一结果被认为是由于有机分解进程和成核及晶粒生长行为的差异所致。使用添加二乙醇胺的溶液,HfO₂薄膜的平整度和折射率得到了改善。在400°C使用添加二乙醇胺的溶液制备的HfO₂薄膜,折射率约为1.85,介电常数约为17。在聚酰亚胺薄膜上,也观察到了类似的微观结构。预期制备出平整且均匀的HfO₂薄膜,可应用于集成光子器件。
    DOI:
    10.1111/j.1551-2916.2008.02649.x
  • 作为产物:
    描述:
    异丙醇异丙醇 为溶剂, 生成 hafnium isopropoxide
    参考文献:
    名称:
    Nona-coordinated MO6N3 centers M=Zr, Hf as a stable building block for the construction of heterometallic alkoxide precursors
    摘要:
    The modification of zirconium or hafnium alkoxides with diethanolamine, H(2)dea, leads to the formation of unique nona-coordinated M{mu-eta(3)-NH(C2H4O)(2)}(3) cores. The mechanism is used to develop a self-assembly approach to the first thermodynamically stable zirconium-titanium and hafnium-titanium precursors, Zr{mu-eta(3)-NH(C2H4O)(2)}(3)[Ti((OPr)-Pr-i)(3)](2) (1) and Hf{mu-eta(3)-NH(C2H4O)(2))(3)[Ti((OPr)-Pr-i)(3)](2) (2). Mass spectrometric characterization of these compounds demonstrates their volatility. In addition to the solution stability of these compounds the volatility makes them attractive single source precursors for MOCVD and ALD applications. These precursors are also interesting candidates for application in sol-gel synthesis of microporous materials as the stability of the core prevents self-assembly of ligands on the outer surface of the primary particles formed during the hydrolysis. A n-propoxide analog of 1 can be prepared from zirconium n-propoxide but does not yield any crystalline material. It is demonstrated that 1 can be prepared from [Zr((OPr)-Pr-n)((OPr)-Pr-i)(3) ((PrOH)-Pr-i)](2), however, with a lower yield compared to the use of zirconium isopropoxide. The single crystals obtained from systems containing zirconium isopropoxide, titanium isopropoxide and triethanolamine H(3)tea turned out to be Ti-2((OPr)-Pr-i)(2)(mu-eta(4)-NH(C2H4O)(3)}(2))(2) (4). Theoretical calculations indicate that the octacoordinate M{mu-eta(4)-N(C2H4O)(3)}(2) core, anticipated in reaction with H(3)tea, will have metal-nitrogen bonds that are too long for its stabilization. This explains why the formation of 4 is thermodynamically favored over the formation of heterometallic species. (c) 2006 Elsevier B.V. All rights reserved.
    DOI:
    10.1016/j.ica.2006.10.022
  • 作为试剂:
    描述:
    5-羟甲基糠醛hafnium isopropoxide异丙醇 作用下, 反应 4.0h, 以59%的产率得到2,5-呋喃二甲醇
    参考文献:
    名称:
    锆和ha多面体低聚倍半硅氧烷复合物–通过MPV /醚化反应级联形成生物衍生醚的绿色均相催化剂
    摘要:
    多面体低聚倍半硅氧烷络合物{[((异丁基)7 Si 7 O 12 ] ZrOPr i ·(HOPr i)}} 2(I),{[(环己基)7 Si 7 O 12 ] ZrOPr i ·(HOPr i)} 2(II),{[((异丁基)7 Si 7 O 12 ] HfOPr i ·(HOPr i)}} 2(III)和{[(环己基)7 Si 7 O 12 ] HfOPr i·(HOPr i)} 2(IV),是由M(OPr i)4(M = Zr,Hf)与R-POSS(OH)3(R =异丁基,环己基)反应合成的,收率很高。I – IV用1 H,13 C和29 Si NMR光谱表征,其二聚体固态结构通过X射线分析证实。I – IV在异丙醇中催化2-羟基和4-羟基,2-甲氧基和4-甲氧基苯甲醛和香兰素还原成醚化成各自的异丙醚,作为“绿色”溶剂和试剂。一世– IV是耐用且坚固的均相催化剂,可在100–160°
    DOI:
    10.1039/d0cy01864c
点击查看最新优质反应信息

文献信息

  • PATTERN-FORMING METHOD AND RADIATION-SENSITIVE COMPOSITION
    申请人:JSR CORPORATION
    公开号:US20210181627A1
    公开(公告)日:2021-06-17
    A pattern-forming method includes: applying directly or indirectly on a substrate a radiation-sensitive composition containing a complex and an organic solvent to form a film; exposing the film to an ultraviolet ray, a far ultraviolet ray, an extreme ultraviolet ray, or an electron beam; and developing the film exposed, wherein the complex is represented by formula (1). [M m L n Q p ]  (1) In the formula (1), M represents a zinc atom, a cobalt atom, a nickel atom, a hafnium atom, a zirconium atom, a titanium atom, an iron atom, a chromium atom, a manganese atom, or an indium atom; and L represents a ligand derived from a compound represented by formula (2). R 1 —CHR 3 —R 2 (2) In the formula (2), R 1 and R 2 each independently represent —C(═O)—R A , —C(═O)—OR B , or —CN.
    一种图案形成方法包括:在基板上直接或间接地涂覆含有复合物和有机溶剂的辐射敏感组合物以形成膜;将膜暴露于紫外线、远紫外线、极紫外线或电子束;和显影所暴露的膜,其中该复合物由式(1)表示。[MmLnQp] (1)在式(1)中,M代表原子、原子、原子、原子、原子、原子、原子、原子、原子或原子;L代表来自由式(2)表示的化合物的配体。R1—CHR3—R2(2)在式(2)中,R1和R2分别独立地表示—C(═O)—RA、—C(═O)—ORB或—CN。
  • [EN] N-HETEROCYCLIC CARBENE BASED ZIRCONIUM COMPLEXES FOR USE IN LACTONES RING OPENING POLYMERIZATION<br/>[FR] COMPLEXES DE ZIRCONIUM À BASE DE CARBÈNE N-HÉTÉROCYCLIQUE, À UTILISER DANS LA POLYMÉRISATION DE LACTONE PAR OUVERTURE DE CYCLE
    申请人:CLARIANT INT LTD
    公开号:WO2012076140A1
    公开(公告)日:2012-06-14
    This invention is reporting new N-heterocyclic carbene based zirconium (or hafnium) complexes and their uses as catalysts for the lactones ring opening polymerization. These new catalysts are robust and versatile and exert control over polymer molecular weight and/or stereochemistry and exhibit high reactivity (cf. for low temperature applications). In particular the new catalysts show both enhanced activity and at the same time a better selectivity than the catalysts employed by the prior art.
    这项发明报告了基于新型N-杂环卡宾的(或)络合物,并将其用作内酯环开环聚合的催化剂。这些新型催化剂具有稳健和多功能性,可以控制聚合物的分子量和/或立体化学,并表现出高反应性(适用于低温应用)。特别是,新型催化剂既显示出增强的活性,同时又比先前文献中使用的催化剂具有更好的选择性。
  • High dielectric constant and capacitance in ultrasmall (2.5 nm) SrHfO<sub>3</sub> perovskite nanoparticles produced in a low temperature non-aqueous sol–gel route
    作者:Mohamed Karmaoui、E. Venkata Ramana、David M. Tobaldi、Luc Lajaunie、Manuel P. Graça、Raul Arenal、Maria P. Seabra、João A. Labrincha、Robert C. Pullar
    DOI:10.1039/c6ra06990h
    日期:——

    Strontium hafnium oxide (SrHfO3) has great potential as a high-k gate dielectric material, for use in memories, capacitors, CMOS and MOSFETs.

    氧化物(SrHfO3)具有作为高k栅介质材料的巨大潜力,可用于存储器,电容器,CMOS和MOSFET。
  • Surface acidity of metal oxides. Combined microcalorimetric and IR-spectroscopic studies of variously dehydrated systems
    作者:Vera Bolis、Giuseppina Cerrato、Giuliana Magnacca、Claudio Morterra
    DOI:10.1016/s0040-6031(97)00440-1
    日期:1998.3
    ZrO2 and γ-/δ,θ- phase for Al2O3) of the metal oxide, as well as the dehydration degree of the surface and the presence of anionic (sulfates for zirconia) or cationic (ceria for alumina) surface dopants were considered. The blue shift of the stretching frequency of adsorbed CO and the adsorption enthalpy were measured. In the case of the group IV metal oxides the two parameters were found to be correlated
    摘要说明了在室温下系统地使用 CO 吸附作为对催化中感兴趣的许多非 d/d0 金属氧化物表面(强)路易斯酸度的探针。强调了结合使用吸附微量热法和红外光谱法在给出酸性表面位点分布的详尽图片方面的优势。金属氧化物的化学性质(TiO2、ZrO2、HfO2Al2O3)和结构(ZrO2 为单斜/四方晶系,Al2O3 为 γ-/δ,θ- 相)的影响,以及金属氧化物的脱程度表面和阴离子(氧化锆硫酸盐)或阳离子(氧化铝的氧化铈)表面掺杂剂的存在被考虑。测量了吸附 CO 的伸缩频率和吸附焓的蓝移。在 IV 族金属氧化物的情况下,发现这两个参数是相关的,而在纯 Al2O3 的情况下,没有发现相关性。氧化铝的特殊行为是根据 CO/Al2O3 界面上发生的不同过程来解释的。表面的吸热可逆重建应该在吸附时发生,导致异常低的热值。氧化铝基体中除 Al3+ 之外的少量阳离子的存在似乎抑制了这种效应。导致热值异常低。氧化铝基体中除
  • Synthesis, Characterisation, and X-Ray Crystal Structures of 8-Hydroxyquinoline Complexes of Group IV Metal Alkoxides
    作者:Mahsa Armaghan、Mahdi Mirzaee、Mahmood Norouzi、Mostafa M. Amini、Hamid Reza Khavasi
    DOI:10.1071/ch13420
    日期:——
    8-hydroxyquinoline with titanium tetraethoxide, and zirconium and hafnium tetra-2-propoxide in toluene at room temperature resulted in formation of [M2-μ-(OR)2-(C9H6NO)2(OR)2] (1: M = Ti, R = Et; 2: M = Zr, R = iPr; 3: M = Hf, R = iPr). All complexes were characterised by infrared, ultraviolet-visible, and NMR spectroscopy, and mass spectrometry. The molecular structures of 1, 2, and 3 were determined
    室温下8-羟基喹啉四乙氧基钛,四-2-丙氧基和ha的化学计量反应导致形成[M 2- μ-(OR)2-(C 9 H 6 NO)2(OR)2 ](1:M =,R =的Et; 2:M =,R = 我; 3:M = HF,​​R = 我PR)。所有复合物的特征在于红外,紫外-可见,NMR光谱和质谱。的分子结构1,2,和3通过单晶X射线衍射确定。属离子周围的配位几何是扭曲的八面体,它们通过桥连的烷氧基共享一条边。每个阴离子8-喹啉酸酯配体还通过其吡啶氮和氧基氧原子与一个属离子螯合。
查看更多