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

碘化铌(V) | 13779-92-5

中文名称
碘化铌(V)
中文别名
碘化钕
英文名称
niobium(V) iodide
英文别名
niobium pentaiodide;niobium(5+);pentaiodide
碘化铌(V)化学式
CAS
13779-92-5
化学式
I5Nb
mdl
——
分子量
727.429
InChiKey
FWIYBTVHGYLSAZ-UHFFFAOYSA-I
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

物化性质

  • 熔点:
    >300 °C(lit.)
  • 密度:
    5.32
  • 溶解度:
    与H2O反应
  • 稳定性/保质期:

    常温常压下稳定,应避免接触分、潮湿、光和酸。

计算性质

  • 辛醇/水分配系数(LogP):
    4.43
  • 重原子数:
    6
  • 可旋转键数:
    0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    0

安全信息

  • 危险等级:
    8
  • 危险品标志:
    C
  • 安全说明:
    S22,S26,S27,S36/37/39,S45
  • 危险类别码:
    R34
  • WGK Germany:
    3
  • 危险品运输编号:
    UN 3260 8/PG 2
  • 包装等级:
    III
  • 危险类别:
    8
  • 储存条件:
    常温密闭保存,在阴凉、通风、干燥的惰性气体环境中。

SDS

SDS:0972465f67c92e8689298dcb128bea54
查看

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    碘化铌(V) 在 H2O 作用下, 以 neat (no solvent) 为溶剂, 生成 氢碘酸
    参考文献:
    名称:
    Littke, W.; Brauer, G., Zeitschrift fur Anorganische und Allgemeine Chemie
    摘要:
    DOI:
  • 作为产物:
    描述:
    生成 碘化铌(V)
    参考文献:
    名称:
    McCarley, R. E; Tadlock, W., Nuclear science abstracts, ISC-1050 {1959} 1/93, 31, 1959, vol. 13, p. 16207
    摘要:
    DOI:
  • 作为试剂:
    描述:
    2-甲氧基乙氧基甲基氯碘化铌(V) 作用下, 以 二氯甲烷 、 chloroform-d8 为溶剂, 反应 48.0h, 生成 乙二醇二甲醚双(氯甲氧基)甲烷甲醚1,2-二碘乙烷
    参考文献:
    名称:
    Further insights into the chemistry of niobium and tantalum pentahalides with 1,2-dialkoxyalkanes: Synthesis of bromo- and iodoalkoxides, spectroscopic and computational studies
    摘要:
    The room temperature reactions of a series of 1,2-dialkoxyalkanes ROCH2CH(R')OR" with MX5 (M = Nb, Ta; X = Br, I) in 1:1 ratio result in single C-O bond cleavage and high-yield formation of the halo-alkoxides MBr4[K-2-OCH2CH(R')OR"] or [Nbl(4){K-1-OCH2CH(R')OR")](2), and equimolar amounts of the corresponding alkyl halides RX. The reaction of NbBr5 with 1,2-climethoxyethane, dme, proceeds with preliminary formation of the ionic species (NbBr4(K-2-dme)(K-1-dme)][NbBr6], 3b, which has been identified by solution NMR at low temperature and conductivity analyses. The gas-phase structure of 3b has been optimized by DFT calculations, confirming that the dme ligands adopt bidentate and monodentate coordination, respectively. Although the formation of NbOBr3(dme), 4b, 1,4-dioxane and MeBr from NbBr5/dme (ratio 1:2) is an exoergonic process (calculated Delta G(r)(degrees) = -115.96 kcal mol(-1)), it is inhibited at room temperature. High temperature conditions enhance the production of 1,4-dioxane at the expense of selectivity. The dinuclear species NbOBr3(dme)NbBr5 (Nb-O-Nb), 5b, (X-ray) has been isolated in modest yield as byproduct of the room temperature reaction of NbBr5 with dme. In general, the 1:2 molar reactions of NbX5 (X = Br. I) with ROCH2CH(R')OR" occur with the exclusion of nearly one equivalent of organic reactant. (C) 2011 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/j.poly.2011.03.005
点击查看最新优质反应信息

文献信息

  • Scanning tunneling and atomic force microscopy study of layered transition metal halides Nb3X8 (X = Cl, Br, I)
    作者:S. N. Magonov、P. Zoennchen、H. Rotter、H. J. Cantow、G. Thiele、J. Ren、M. H. Whangbo
    DOI:10.1021/ja00059a053
    日期:1993.3
    Niobium halides Nb[sub c]X[sub 8] (X = Cl, Br, I) are made up of layers of composition Nb[sub 3]X[sub 8], and the two surfaces (A and B) of their individual Nb[sub 3]X[sub 8] layers are not equivalent in atomic corrugations. The surfaces of these halides were examined by atomic force microscopy (AFM) and scanning tunneling microscopy (STM) to obtain atomic resolution images. For a given surface, AFM
    卤化物 Nb[sub c]X[sub 8] (X = Cl, Br, I) 由 Nb[sub 3]X[sub 8] 组成的层组成,它们的两个表面(A 和 B)单个 Nb[sub 3]X[sub 8] 层在原子波纹中是不等价的。通过原子力显微镜 (AFM) 和扫描隧道显微镜 (STM) 检查这些卤化物的表面以获得原子分辨率图像。对于给定的表面,AFM 图像与 STM 图像显着不同,并且 STM 图像的分辨率取决于隧道条件。通过计算总电子密度分布[rho](r[sub 0])和部分电子密度分布[rho](r[sub 0],e[sub f])来分析观察到的AFM和STM图像,对于单个 Nb[sub 3]X[sub 8] (X = Cl, Br, I) 层的两个表面。工作表明,AFM 和 STM 图像分别由 [rho](r[sub 0]) 和 [rho](r[sub 0], e[sub f]) 图很好地描述。AFM
  • Fragmentation of oxygen-containing molecules via C–O bond cleavage promoted by coordination to niobium and tantalum pentahalides
    作者:Fabio Marchetti、Guido Pampaloni、Stefano Zacchini
    DOI:10.1039/b905023j
    日期:——
    Cl, ; X = Y = Br, ; X = I, Y = Br, ) slowly convert into the corresponding alkoxides [NbX(4)(OCH(2)CH(2)Y)](2) (X = Br, Y = Cl, ; X = Y = Br, ; X = I, Y = Br, ) in CDCl(3). The further conversion of to NbOBr(3), MeBr and Br(CH(2))(2)Br takes place at 60 degrees C. N(2)CHCO(2)Et behaves as a ligand with respect to NbF(5), whereas it undergoes fragmentation and halogenation when contacted with NbCl(5)
    新型mu-oxo配合物NbOX(3)[kappa(2)-O(Me)CH(2)CO(2)Me] NbX(5)(X = Cl,; X = Br,),NbOCl(3) [kappa(2)-(MeO(2)C)CH [双键,长度为m-破折号] CH(CO(2)Me)] NbCl(5)()和NbOCl(3)[kappa(2)- CH(2)(CO(2)Me)(2)] NbCl(5)()已通过卤化物NbX(5)(X = Cl,Br)与甲氧基甲基的摩尔比为1:1的反应以高收率制备乙酸盐[MeOCH(2)CO(2)Me],马来酸二甲酯[(MeO(2)C)CH [双键,长度为m-dash] CH(CO(2)Me)]和丙二酸二甲酯[CH(2 )(CO(2)Me)(2)],分别在不同的实验条件下进行。NMR研究表明,和的氧代单元通过选择性断裂(CO键断裂)形成一半当量的有机材料。离子络合物[NbX(4)OO}(2)]
  • Heavier halides of early transition elements by halide-exchange reactions. Crystal and molecular structure of [Ph3C]2[Hf2Cl10]
    作者:Fausto Calderazzo、Piersandro Pallavicini、Guido Pampaloni、Pier Francesco Zanazzi
    DOI:10.1039/dt9900002743
    日期:——
    The decahalogenodimetalates of zirconium(IV) and hafnium(IV) as their triphenylmethyl derivatives [Ph3C]2[M2Cl10] have been obtained by the reaction of M(BH4)4 with the appropriate Ph3CX or by addition of Ph3CX to MX4. The crystal and molecular structure of [Ph3C]2[Hf2Cl10] has been studied by X-ray diffraction methods: triclinic, space group P, a= 15.965(3), b= 12.907(3), c= 10.526(3)Å, α= 99.75(2)
    (的decahalogenodimetalates IV)和(IV)作为它们的三苯甲基衍生物[PH 3 C] 2 [M 210 ]已经由M(BH反应得到4)4与适宜的pH 3 CX或通过加入Ph 3 CX转换为MX 4的过程。[ X 3 C] 2 [Hf 2 Cl 10 ]的晶体和分子结构已通过X射线衍射方法研究:三斜晶系,空间群P,a = 15.965(3),b= 12.907(3),c = 10.526(3)Å,α= 99.75(2),β= 84.84(2),γ= 102.64(2)°,Z =2。该结构由[Ph 3 C]组成+阳离子和[Hf 2 Cl 10 ] 2-阴离子,后者具有晶体对称性。化物桥接的二聚体具有扭曲的八面体配位,而[Ph 3 C] +阳离子在中心碳周围具有三角平面的几何形状。(V)和(V)的卤化物较重,是通过与Pr i Br进行交换反应从化物制备的(对于NbBr
  • Hexanuclear Niobium Cluster Iodides with Pyridine Ligands – Temperature Induced Auto‐Oxidation
    作者:Florian Schröder、Martin Köckerling
    DOI:10.1002/zaac.202100295
    日期:2022.2.24
    The cluster compounds [Nb6I8Py6] and [Nb6I8Py6]I ⋅ 9Py, both with octahedral Nb6 metal atom cores, were obtained from the reaction of [Nb6I11] with pyridine (Py). Both compounds are rare examples of iodide supported hexanuclear cluster compounds, which are obtained through solvent-based chemical reactions. The Nb6 cluster core is surrounded by μ3-bridging iodido and apical-bonded pyridine ligands.
    [Nb 6 I 8 Py 6 ]和[Nb 6 I 8 Py 6 ]I·9Py均具有八面体Nb 6属原子核的簇化合物[Nb 6 I 11 ]与吡啶(Py)反应得到. 这两种化合物都是化物负载的六核簇化合物的罕见例子,它们是通过溶剂型化学反应获得的。Nb 6簇核心被μ 3桥接和顶端键合的吡啶配体包围。[Nb 6 I 8 Py 6 ] 包含 22 个基于簇的电子 (CBE),而 [Nb 6I 8 Py 6 ]I ⋅ 9Py 是具有 21 个 CBE 的氧化版本。只需将与 [Nb 6 I 8 Py 6 ]相同的起始材料的温度从室温降低到 -20 °C,就会发生氧化。通过单晶 X 射线衍射确定了两种簇化合物的结构。
  • Complex halides of transition metals. Part IX. Preparation and electronic and vibrational spectra of the mixed hexahalogenoniobates(V) and hexahalogenotantalates(V)[Et4N]MX5Y (X = Cl or Br, Y = Cl, Br, or I) including a vibrational analysis of the MX5Y? anions
    作者:G. A. Ozin、G. W. A. Fowles、D. J. Tidmarsh、R. A. Walton
    DOI:10.1039/j19690000642
    日期:——
    The crystalline complexes [Et4N]MX5Y (M = Nb or Ta; X = Cl or Br; and Y = Cl, Br, or l) have been prepared and their electronic and vibrational spectra recorded. The i.r. and Raman spectra of the NbCl5Br–, TaCl5Br–, and TaBr5Cl– anions and i.r. spectra of NbBr5Cl– and NbBr5l– are assigned on the basis of an approximately C4v octahedral anion. Force-constant values for MX5Y– and MY5X– were transferred
    制备了晶体络合物[Et 4 N] MX 5 Y(M = Nb或TA; X = Cl或Br; Y = Cl,Br或l),并记录了其电子光谱和振动光谱。的NbCl的IR和拉曼光谱5-,TACL 5- ,和TABr 5-阴离子和IR NbBr的光谱5-和NbBr 5升-被分配一个近似的基础上Ç 4 v八面体阴离子。MX 5 Y –和MY 5 X –的力常数直接从母体种类MX转移6 -和MY 6 - ,和用于计算混合卤化物络合物阴离子的振动频率。盐[等4 N] ML 6(M = Nb或TA)也被制备,它们的红外光谱测定,ν 3和ν 4分配给这些八面体的阴离子。
查看更多