钴(II)六氟乙酰丙酮水合物 | 206986-92-7

• 分子结构分类: 有机化合物
• 中文名称: 钴(II)六氟乙酰丙酮水合物
• 英文名称: cobalt(II) hexafluoroacetylacetonate hydrate
• 英文别名: [Co(hfac)₂]·nH2O；[Co(hexafluoroacetylacetonate)₂]*xH₂O；[Co(hfac)₂]*xH₂O；cobalt hexafluoroacetylacetonate hydrate；cobalt(II) hexafluoroacetylacetonate*99H2O；Co(hexafluoroacetylacetonate)2*99H2O；Co(hfac)2 (H2O)x；Cobalt(2+);1,1,1,5,5,5-hexafluoropentane-2,4-dione;hydrate
• CAS: 206986-92-7
• 化学式: C₁₀H₂CoF₁₂O₄*(x)H₂O
• 分子量: 491.05
• InChiKey: IZEKNBQVJSWPRA-UHFFFAOYSA-N

物化性质

• 熔点：
  197 °C (dec.) (lit.)

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

安全信息

• WGK Germany：
  3

反应信息

• 作为反应物：
  描述：

  钴(II)六氟乙酰丙酮水合物 、 5-[4-(N-tert-butyl-N-aminooxyl)phenyl]pyrimidine 以 正己烷 、 二氯甲烷 为溶剂， 以38%的产率得到Co(hfac)2(5-4[N-tert-butyl-N-aminoxyl]phenyl)pyrimidine)2monohydrate
  参考文献：
  名称：

  Isostructural M(RL)2(hfac)2 complexes with RL=5-(4-[N-tert-butyl-N-aminoxyl]phenyl)pyrimidine

  摘要：

  5-(4-(N-tert-Butyl-N-aminoxylphenyl)) pyrimidine (RL, 4PPN) forms crystallographically isostructural and isomorphic pseudo-octahedral M(RL)(2)(hfac)(2) complexes with M(hfac)(2), M = Zn, Cu, Ni, Co, and Mn. Multiple close contacts occur between sites of significant spin density of the organic radical units. Magnetic behavior of the Zn, Cu, Ni, Co complexes appears to involve multiple exchange pathways, with multiple close crystallographic contacts between sites that EPR (of 4PPN) indicates to have observable spin density. Powder EPR spectra at room temperature and low temperature are reported for each complex. Near room temperature, the magnetic moments of the complexes are roughly equal to those expected by a sum of non-interacting moments (two radicals plus ion). As temperature decreases, AFM exchange interactions become evident in all of the complexes. The closest fits to the magnetic data were found for a 1-D Heisenberg AFM chain model in the Zn(II) complex (J/k = (-)7 K), and for three-spin RL-M-RL exchange in the other complexes (J/k = (-)26 K, (-)3 K, (-) 6 K, for Cu(II), Ni(II), and Co(II) complexes, respectively). (C) 2008 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2008.03.105
• 作为产物：
  描述：

  dicobalt octacarbonyl 、 bis(hexafluoroacetylacetonate)platinum(II) 在 oleic acid 作用下， 以 甲苯 为溶剂， 生成 cobalt platinum 、 钴(II)六氟乙酰丙酮水合物
  参考文献：
  名称：

  Synthesis of “Solid Solution” and “Core-Shell” Type Cobalt−Platinum Magnetic Nanoparticles via Transmetalation Reactions

  摘要：

  In this article, we report the synthesis of "solid solution" and "core-shell" types of well-defined Co-Pt nanoalloys smaller than 10 nm. The formation of these alloys is driven by redox transmetalation reactions between the reagents without the need for any additional reductants. Also the reaction proceeds selectively as long as the redox potential between the two metals is favorable. The reaction between Co(2)(CO)(8) and Pt(hfac)(2) (hfac = hexafluoroacetylacetonate) results in the formation of "solid solution" type alloys such as CoPt(3) nanoparticles. On the other hand, the reaction of Co nanoparticles with Pt(hfac)2 in solution results in "Co(core)-Pt(shell)" type nanoalloys. Nanoparticles synthesized by both reactions are moderately monodispersed (sigma < 10%) without any further size selection processes. The composition of the alloys can also be tuned by adjusting the ratio of reactants. The magnetic and structural properties of the Obtained nanoparticles and reaction byproducts are characterized by TEM, SQUID, UV/vis, IR, EDAX, and XRD.

  DOI：

  10.1021/ja0156340

文献信息

• Magnetic Mn and Co Complexes with a Large Polycyclic Aromatic Substituted Nitronylnitroxide
  作者：Maria G. F. Vaz、Rafael A. Allão、Handan Akpinar、John A. Schlueter、Sauli Santos、Paul M. Lahti、Miguel A. Novak

  DOI：10.1021/ic202623p

  日期：2012.3.5

  5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (PyrNN) was reacted with M(hfac)2 (M = Mn(II) and Co(II), hfac = hexafluoracetylacetonate) to give two isostructural ML2 stoichiometry M(hfac)2(PyrNN)2 complexes and a ML stoichiometry one-dimensional (1-D) polymer chain complex [Mn(hfac)2(PyrNN)]. The ML2 complexes have similar crystal structures with monoclinic unit cells, in which one NO unit from each

  使2-（1'-吡啶基）-4,4,5,5-四甲基-4,5-二氢-1 H-咪唑-3-氧化物-1-氧基（PyrNN）与M（hfac）2（M = Mn（II）和Co（II），hfac =六氟乙酰丙酮）给出两个同构的ML 2化学计量M（hfac）2（PyrNN）2配合物和ML化学计量的一维（1-D）聚合物链配合物[Mn（ hfac）2（PyrNN）]。ML 2配合物具有与单斜晶胞相似的晶体结构，其中来自每个PyrNN配体的一个NO单元键合在扭曲八面体的顺向顶点上的过渡金属上。主要的磁性相互作用是内部复杂的金属-自由基交换（J），并通过未配位的NO单元（J '）之间的紧密接触进行分子间交换。对于M = Mn（II），近似链模型拟合给出g = 2.0，J =（-）125 cm –1，而J '=（-）49 cm –1；对于M = Co（II），g = 2.4，J =（-）180 cm –1，而J '=（-）70
• Electroactive tetrathiafulvalene based pyridine-mono and -bis(1,2,3-triazoles) click ligands: synthesis, crystal structures and coordination chemistry
  作者：Thomas Biet、Narcis Avarvari

  DOI：10.1039/c4ce00736k

  日期：——

  four different ligands, while the other four triazole units establish hydrogen bonds with one axially coordinated water molecule. The second complex is a one-dimensional coordination polymer, containing the CdCl2 fragment, in which the repeating motif is a pentanuclear “Cd5Cl10” unit decorated with two TTF ligands coordinated in a ditopical mode through the triazole units. The TTF donors establish intra-

  按照钌催化的叠氮化物-炔烃环加成策略，通过点击化学法合成了电活性配位体picoline-1,2,3-三唑-5-DM-TTF和二甲基双（1,2,3-三唑-5-DM-TTF） 。在双（三唑）衍生物的固态结构中，观察到镊子构象，两个TTF单元以平行方式排列。循环伏安法测量显示第一个氧化波分裂，表明通过空间混合化合价自由基阳离子分子内分子中TTF供体的顺序氧化，然后进行离子化，表明在溶液中也保持了镊子构象。钴（II）描述了基于螯合的甲基吡啶-三唑配体的络合物。卢剔啶-双-三唑配体在两种结构报告的镉（II）配合物中均未显示螯合行为。在一种配合物中，Cd（II）中心由来自四个不同配体的四个三唑环进行配位，而其他四个三唑单元则与一个轴向配位的水分子建立氢键。第二种复合物是一维配位聚合物，包含CdCl 2片段，其中重复基序是五核“ Cd 5 Cl 10 ”单元，装饰有两个通过对位方式通过三唑单元配位的TT
• The competition of basicity and steric factors in the nitroxide donor functions in metal complexes: The study of M(hfac)2(M = Co, Ni) adducts with 3-imidazoline nitroxides
  作者：Alexei B. Burdukov、Victor I. Ovcharenko、Renad Z. Sagdeev、Natalie V. Pervukhina、Vladimir N. Ikorskii、Igor A. Kirilyuk、Igor A. Grigor'ev

  DOI：10.1016/0277-5387(96)00159-3

  日期：1996.9

  coordination for steric reasons. In M(hfac)2(H2O)2L22 the nitroxide moieties are H-bonded to the coordinated water molecules through the imine nitrogen atoms and methoxy oxygen atoms. The nitroxide L2 is unstable in the presence of Co(hfac)2 and on removal of water decomposes to yield the adduct with nitrone Co(hfac)2L23, L3 = 2,2-dimethyl-5-methoxy-4-phenyl-2H-imidazol 1-oxide. The complexes M(hfac)2L21 demonstrate

  相似的氮氧化物2,2,5,5-四甲基-4-苯基-3-咪唑啉-1-氧基（L 1）和2,2-二甲基-5,5-二甲氧基-4-苯基-3-咪唑啉-1 -与钴和六氟乙酰丙酮化镍反应生成的不同组成的配合物生成的-氧基（L 2）：M（hfac）2 L 2 1和M（hfac）2（H 2 O）2 L 2 2。在M（hfac）2 L 2 1配合物中，氮氧化物通过氮氧化物氧与金属离子键合，但由于空间原因，亚胺氮不参与配位。在M（hfac）2（H 2 O）2中在L 2 2中，氮氧化物部分通过亚胺氮原子和甲氧基氧原子与键合的水分子氢键结合。氮氧化物L 2在Co（hfac）2的存在下是不稳定的，并且在除去水时分解，从而生成与亚硝基Co（hfac）2 L 2 3的加合物，L 3 = 2,2-二甲基-5-甲氧基-4 -苯基-2 H-咪唑1-氧化物。配合物M（hfac）2 L 2 1表现出金属离子与氮氧化物之间的强反铁磁耦合。
• Photo-controlled release and uptake of Cu(hfac)2 in solution for a binuclear copper complex with a photochromic dithiazolylethene bridging ligand
  作者：Marion Giraud、Anne Léaustic、Régis Guillot、Pei Yu、Pierre Dorlet、Rémi Métivier、Keitaro Nakatani

  DOI：10.1039/b901201j

  日期：——

  A photochromic dithiazolylethene was used as bridging ligand to synthesize a series of homometallic binuclear complexes. It was found that the photochromic activity of the bridging ligand was maintained in solution only in the case of the copper binuclear complex. EPR studies revealed not only a weak magnetic coupling between the two copper ions, but also an interesting photo-controlled release and

  光致变色 二噻唑基用作桥联配体来合成一系列同金属双核配合物。发现仅在铜双核络合物的情况下，桥配体的光致变色活性在溶液中得以维持。EPR研究不仅揭示了两个铜离子之间的弱磁耦合，而且还揭示了溶液中Cu（hfac）2部分的有趣的光控释放和吸收。
• Mononuclear and One‐Dimensional Cobalt(II) Complexes with the 3,6‐Bis(picolylamino)‐1,2,4,5‐tetrazine Ligand
  作者：Oleh Stetsiuk、Abdelkrim El‐Ghayoury、Francesc Lloret、Miguel Julve、Narcis Avarvari

  DOI：10.1002/ejic.201701224

  日期：2018.1.31

  (3) (Hhfac = hexafluoroacetylacetone). The crystal structures of 1-3 were determined by X-ray structure analysis. The metal centre in 2 is tris-chelated by two hfac ligands and a picolylamine unit. The two crystallographically independent cobalt(II) ions that occur in 3 (Co1 and Co2) are six-coordinate. Two bidentate hfac groups in equatorial positions and two trans-positioned pyridine-nitrogen atoms

  我们在本文中描述了基于四嗪的双（甲基吡啶胺）配体（L，1）的合成和结构表征，该配体是通过两个当量的甲基吡啶胺和3,6-二氯-1,2,4,5-四嗪之间的直接反应制备的。其与六氟乙酰丙酮钴（II）的反应提供了单核络合物[Co（hfac）2L]·CH3CN（2）和链状化合物[Co（hfac）2（l-L）] [Co（hfac）2（CH3OH） 2]} n（3）（Hhfac =六氟乙酰丙酮）。通过X射线结构分析确定1-3的晶体结构。2中的金属中心被两个hfac配体和一个甲基吡啶胺单元三级螯合。出现在3中的两个晶体学独立的钴（II）离子（Co1和Co2）为六坐标。赤道位置的两个双齿hfac基团和两个转位的吡啶-氮原子在Co1周围构建配位多面体，导致形成中性之字形链，该链与单核物种trans- [Co2（hfac）2（CH3OH）2）共结晶]。在1.9-300 K的温度范围内研究了2和3的磁性。冷却后