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NCr(NPri2)2(I) | 173851-51-9

中文名称
——
中文别名
——
英文名称
NCr(NPri2)2(I)
英文别名
NCr(NPri2)2(I);NCr(NPri2)3;NCrI(diisopropylamido)2
NCr(NPri2)2(I)化学式
CAS
173851-51-9
化学式
C12H28CrIN3
mdl
——
分子量
393.275
InChiKey
DCCKPGMCLBACMJ-UHFFFAOYSA-M
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):
    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

反应信息

  • 作为反应物:
    描述:
    NCr(NPri2)2(I) 在 0.5percent sodium amalgam 作用下, 以 四氢呋喃 为溶剂, 以88%的产率得到
    参考文献:
    名称:
    A Chromium(VI) Nitrido−Silylmethyl Complex and a Chromium(V) μ-Nitrido Dimer:  Synthetic and Structural Details
    摘要:
    Lutidinium iodide reacts with NCr((NPr2)-Pr-i)(3) (1) to give the nitrido-iodide NCr(I)((NPr2)-Pr-i)(2) (2), which provides the sigma-alkyl complex NCr(CH(2)SiMe(2)Ph)((NPr2)-Pr-i)(2) (3) upon treatment with 0.5 equiv of Mg(CH(2)SiMe(2)Ph)(2). The thermal stability of nitrido-alkyl 3 is discussed, and its X-ray crystal structure is presented. Produced via sodium amalgam reduction of nitrido-iodide, 2 is the dimeric chromium(V) complex [Cr(mu-N)((NPr2)-Pr-i)(2)](2) (4), the X-ray crystal structure of which is also described.
    DOI:
    10.1021/om950842k
  • 作为产物:
    描述:
    Cr(diisopropylamido)3 以 正戊烷 为溶剂, 生成 NCr(NPri2)2(I)
    参考文献:
    名称:
    高价过渡金属上阴离子配体的给体和立体性质的评价
    摘要:
    报告了各种通式为NCr(NPr i 2)2 X的铬(VI)氮化铬化合物的合成规程和表征数据,其中X = NPr i 2(1),I(2),Cl(3), Br(4),OTf(5),1-金刚烷氧化物(6),OSiPh 3(7),O 2 CPh(8),OBu t F6(9),OPh(10),O- p-(OMe)C 6 H 4(11),O-p-(SMe)C 6 H 4(12),O- p-(Bu t)C 6 H 4(13),O- p-(F)C 6 H 4(14),O- p-(Cl )C 6 H 4(15),O- p-(CF 3)C 6 H 4(16),OC 6 F 5(17),κ(O)-N-氧邻苯二甲酰亚胺(18),SPh(19),OCH 2 Ph(20),NO 3(21),吡咯基(22),3-C 6 F 5-吡咯基(23),3- [3,5-(CF 3)2 C 6 H 3 ]吡咯基(24),吲哚基(2
    DOI:
    10.1021/ic202524r
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文献信息

  • Phosphine interactions with high oxidation state metals
    作者:Kelly E. Aldrich、Brennan S. Billow、Richard J. Staples、Aaron L. Odom
    DOI:10.1016/j.poly.2018.11.027
    日期:2019.2
    have focused on their interactions with low valent transition metals. From these investigations, it is now widely accepted that there are two major electronic interactions between the PE3 ligand and a low valent metal: a σ-donor bond between the metal and phosphorus and a π-acceptor interaction, where the phosphorus accepts electron density from the metal. The π-acceptor interaction is a form of negative
    摘要在化学家的军械库中,膦和相关配体(PE3)是用途最广,研究最深入的一些。这些配体的绝大多数研究都集中在它们与低价过渡属的相互作用上。从这些研究中,现在已被广泛接受,PE3配体与低价属之间存在两种主要的电子相互作用:属与之间的σ供体键和π受体相互作用,其中接受来自属。π-受体相互作用是负超共轭的一种形式,这对于吸电子的E基团(例如亚磷酸酯P(OR)3中的E基团)更为重要。在这项研究中,询问了高价过渡属,(VI)和各种不同的PE3配体之间的键合。使用古特曼方法对NCr(NiPr2)2+片段的Lewis酸度进行了定量,发现受体数为100,与高度Lewis酸性的SbCl5相似。使用计算(DFT,自然共振理论)发现,很少讨论的共振形式对于d0属中心的某些膦很重要。这些替代的共振形式包括负超共轭形式,当芳基或杂原子取代基置于原子上时出现,从而导致路易斯酸属中心的电子密度增加
  • Chromium(VI) nitrido complexes: reactions with Brønsted acids and synthesis of organometallic derivatives
    作者:Aaron L. Odom、Christopher C. Cummins
    DOI:10.1016/s0277-5387(97)00402-6
    日期:1998.3
    Abstract The chromium(VI) nitrido complex NCr(N- i -Pr 2 ) 3 was prepared in 67% yield by vanadium(III)-mediated deoxygenation of coordinated nitric oxide. The iodide complex NCr(I)(N- i -Pr 2 ) 2 . prepared by treatment of NCr(N- i -Pr 2 ) 3 with lutidinium iodide, was coverted to NCr(CH 2 SiPhMe 2 )(N- i -Pr 2 ) 2 upon treatment with Mg(CH 2 SiPhMe 2 ) 2 . NCr(N- i -Pr 2 ) 3 reacts with 1 equiv.
    摘要通过(III)介导的配位一氧化氮的脱氧反应,以67%的收率制备了亚硝酸(VI)络合物NCr(N-i-Pr 2)3。化物络合物NCr(I)(N-i-Pr 2)2。通过用化lut处理NCr(N-i-Pr 2)3制备的化合物在用Mg(CH 2 SiPhMe 2)2处理后被掩盖为NCr(CH 2 SiPhMe 2)(N-i-Pr 2)2。NCr(N i -Pr 2)3与1当量反应。苯酚或HOC(CF 3)2 Me生成一元醇盐配合物NCr(OPh)(N-i-Pr 2)2)2或NCr(OC(CF 3)2 Me)(N- i -Pr 2 )2,分别的收益率是89%和77%。在NCr(OC(CF 3)2 Me)(N-i-Pr 2)2上进行的自旋饱和转移测量表明CrN酰胺键旋转的一级速率常数约为13 s -1。在NCr(N-i-Pr 2)3中添加过量的HOC(CF 3)2 Me可以在86中生成单酰胺基复合物NCr(OC(CF
  • Effective donor abilities of E-t-Bu and EPh (E = O, S, Se, Te) to a high valent transition metal
    作者:Ross D. Bemowski、Amrendra K. Singh、Bailey J. Bajorek、Yvonne DePorre、Aaron L. Odom
    DOI:10.1039/c4dt01314j
    日期:——
    under investigation as a method for the parameterization of ligands for their donor properties toward high valent metals. In this study, two new series were prepared and studied based on chalcogenide ligands, X = EBut and EPh and where E = O, S, Se, Te; the OPh and SPh compounds were previously reported. The ligand donor parameters for these ligands correlate with the Cr–E–C angles in these chalcogenide
    (VI)d 0系统NCr(NPr i 2)2 X中的酰胺基旋转作为一种配体的参数化方法正处于研究之中,这些配体因其对高价属的施主特性而受到影响。在这项研究中,基于属化物配体制备和研究了两个新的系列,X = EBu t和EPh,其中E = O,S,Se,Te; E = O,S,Se,Te。OPh和SPh化合物先前已有报道。在这些族化物系列中,这些配体配体供体参数与Cr–E–C角相关。此外,发现NBO计算的重叠和DFT计算的键解离焓在X =卤化物-,EBu t内相关-和EPh系列。所有新的配合物均通过X射线衍射表征。
  • Weakly Coordinating yet Ion Paired: Anion Effects on an Internal Rearrangement
    作者:Kelly E. Aldrich、Brennan S. Billow、Daniel Holmes、Ross D. Bemowski、Aaron L. Odom
    DOI:10.1021/acs.organomet.6b00839
    日期:2017.4.10
    "Weakly coordinating anions" such as tetraarylborates are ubiquitous in applications of inorganic and organometallic chemistry, with great industrial importance. In this work, we probe the ion-pairing ability of these weakly coordinating anions using the highly sensitive chromium(VI) nitrido bis(diisopropylamido) system NCr(N-i-Pr-2)(2)X, with one variable coordination site (X). This system is being used in the quantification of ligand donor ability to high-valent metal centers and has simply been called the ligand donor parameter (LDP). The donor ability of the variable ligand can be measured by solution-state rotational barrier studies-via NMR spectroscopy. If the variable ligand is neutral, the chromium complex is cationic, NCr(N-i-Pr-2)(2)L}(+), with its pendant anion. Despite the weakly coordinating nature of the counteranions employed, a significant amount of ion pairing has been noted in solution, the result of which is substantial enough to perturb the sensitive LDP measurement. These effects have been noted for many commonly used counteranions, including hexafluoroantimonate(V), hexafluorophosphate(V), tetraphenylborate, and tetrakis(bis(3,5-trifluoromethyl)phenyl)borate (BArF24). Using diffusion ordered (DOSY) and rotating-frame Overhauser effect (ROESY) NMR spectroscopy and LDP values, we have shown, predictably, that the extent of ion pairing is solvent dependent and appears to be minimized by increasing the dielectric constant of the NMR solvent utilized. Additionally, we have gained insight into differences in the nature of ion pairing dependent upon the identity of the weakly coordinating anion employed. It was found that the tetraarylborate anions appear to be fully ion paired in CDCl3 but affect amido rotation less in comparison to other anions. We postulate that the smaller effect on the internal rearrangement by these fluorinated tetraarylborate anions is due to a lack of specificity in the interaction with the cation rather than a lack of ion pairing, which may be a general feature of these anions.
    “弱配位阴离子”(如四芳基硼酸)在无机和有机化学的应用中无处不在,具有重要的工业价值。在本研究中,我们使用高度敏感的六价的液二(异丙基)基系统 NCr(N-i-Pr-2)₂X(其中X为一个可变配位位点)来探查这些弱配位阴离子的离子结合能力。该系统用于量化配体向高价属中心的供体能力,简称为配体供体参数(LDP)。通过溶液态旋转屏障研究(借助NMR光谱),可以测量可变配体的供体能力。如果可变配体为中性,则复合物呈阳离子态,NCr(N-i-Pr-2)₂L}⁺,并带有其悬挂的阴离子。尽管所用的反离子具有弱配位特性,但溶液中观察到显著的离子结合,其结果足以干扰敏感的LDP测量。这一现象在多种常用反离子中得到观察,包括六酸根(V)、六氟磷酸根(V)、四苯基硼酸根、以及四(双(3,5-二甲基)苯基)硼酸根(BArF24)。通过扩散有序谱(DOSY)和旋转框架核奥瑟效应(ROESY)NMR光谱,结合LDP值,我们可预测地得出结论:离子结合的程度取决于溶剂,并且通过增加NMR溶剂的介电常数,可以最大限度地减少离子结合。此外,我们还深入了解了不同弱配位阴离子在离子结合性质上的差异。研究发现,四芳基硼酸盐阴离子在CDCl₃中似乎完全离子结合,但与其他阴离子相比,对基旋转的影响较小。我们推断,这些含四芳基硼酸盐阴离子对内部重排较小的影响是由于与阳离子的相互作用缺乏特异性,而不是由于缺乏离子结合,这可能是这些阴离子的一种普遍特性。
  • A complex with nitrogen single, double, and triple bonds to the same chromium atom: synthesis, structure, and reactivity
    作者:Evan P. Beaumier、Brennan S. Billow、Amrendra K. Singh、Shannon M. Biros、Aaron L. Odom
    DOI:10.1039/c5sc04608d
    日期:——
    A complex with single, double and triple bonds between nitrogen and the same metal center has been synthesized, [NCr(NPh)(NPri2)2]-. The complex shows differential activity, with some electrophiles attacking the imido and others the nitrido.
    已经合成了在氮与同一属中心之间具有单键、双键和三键的配合物[NCr(NPh)(NPr i 2 ) 2 ] -。该复合物显示出不同的活性,一些亲电子试剂攻击亚基,另一些攻击亚硝酸
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