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dichlorobis{η-(trimethylsilyl)cyclopentadienyl}niobium(IV)

中文名称
——
中文别名
——
英文名称
dichlorobis{η-(trimethylsilyl)cyclopentadienyl}niobium(IV)
英文别名
Nb(η(5)-C5H4(SiMe3))2Cl2;(η(5)-C5H4SiMe3)2NbCl2;[((η5-C5H4SiMe3)NbCl2];Cyclopentyl(trimethyl)silane; dichloroniobium
dichlorobis{η-(trimethylsilyl)cyclopentadienyl}niobium(IV)化学式
CAS
——
化学式
C16H26Cl2NbSi2
mdl
——
分子量
438.366
InChiKey
CIQKSPJSPGIOQK-UHFFFAOYSA-L
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):
    5.91
  • 重原子数:
    21
  • 可旋转键数:
    2
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.38
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    0

反应信息

  • 作为反应物:
    描述:
    dichlorobis{η-(trimethylsilyl)cyclopentadienyl}niobium(IV)溶剂黄146 作用下, 以 四氢呋喃 为溶剂, 生成 [Nb(η(5)-C5H4SiMe3)2(OC(O)Me-O,O')]
    参考文献:
    名称:
    Synthesis, electrochemistry and reactivity of formato– and acetato–niobocene complexes
    摘要:
    The complex [Nb(eta(5)-C(5)H(4)SiMe(3))(2)H-3] 1 reacted with CO2 to give the formato complex [Nb(eta(5)-C(5)H(4)SiMe(3))(2){OC(O)H-O,O'}] 2, which can alternatively be prepared from a two-electron reduction of [Nb(eta(5)-C(5)M(4)SiMe(3))(2)Cl-2] 3 in the presence of formic acid. the reaction of 2 with different pi-acids or heterocumulene molecules resulted in opening of the bidentate formate ligand giving rise to the monodentate formato-containing complexes [Nb(eta 5-C(5)H(4)SiMe(3))(2){OC(O)H-O}L], L = CS2 4, CO 5 or 2,6-Me(2)C(6)H(3)NC 6. On the other hand; [Nb(eta(5)-C(5)H(4)SiMe(3))(2){OC(O)Me-O,O'}] 8 was prepared from either the reaction of [Nb(eta(5)-C(5)H(4)SiMe(3))(2)Cl] 7 with 1 equivalent of TI(O(2)CMe) or from a two-electron reduction of 3 in the presence of acetic acid. The complex [Nb(eta(5)-C(5)H(4)SiMe(3))(2)(MeCOCHCOMe-O,O')] 9 can also be isolated from the reaction of 7 with 1 equivalent of Tl(acac) (acac = acetylacetonate). Complex 8 reacted with oxygen to give [Nb(eta(5)-C(5)H(4)SiMe(3))(2)O{OC(O)Me-O}] 10, and with pi-acids or heterocumulenes to give products with a monodentate OC(O)Me ligand, namely [Nb(eta(5)-C(5)H(4)SiMe(3))(2){OC(O)Me-O}L], L = CS2 11, SCNPh 12, PhNCCPhEt 13, MeO(2)CC=CCO(2)Me 14, Bu(t)NC 15 or CO 16. The structures of all complexes have been established by spectroscopic methods.
    DOI:
    10.1039/dt9950003409
  • 作为产物:
    描述:
    Nb(η(5)-C5H4(SiMe3))2Cl 在 氯苯 作用下, 以 正己烷 为溶剂, 生成 dichlorobis{η-(trimethylsilyl)cyclopentadienyl}niobium(IV)
    参考文献:
    名称:
    早期过渡金属的茂金属衍生物。双(甲硅烷基化的环戊二烯基)铌配合物与有机卤化物的反应
    摘要:
    配合物的反应的Nb(η 5 -C 5 H ^ 3 RR')2 ħ 3和Nb(η 5 -C 5 H ^ 3 -RR')2 X(X = Br的,I; R = H,R'=森达3 ; R = R'=森达3)与乙基溴和甲基碘,得到新的铌(IV)配合物,铌(η 5 -C 5 H ^ 3 RR')2 X 2(X为Br,R = H, R'= SiMe 3(I); R = R'= SiMe 3(II); X = I,R = H,R'= SiMe 3(III); R = R'= SiMe 3(IV))高产。这些配合物的形成是根据有机卤化物的初始氧化添加来解释的。复杂的Nb的反应(η 5 -C 5 H ^ 4森达3)2氯苄基氯也进行了研究。
    DOI:
    10.1016/0022-328x(90)80216-m
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文献信息

  • Preparation and structural characterization of chloro- and alkyl-isocyanidoniobocene compounds. Synthesis of the first dicyclopentadienylniobium species containing iminoacyl groups
    作者:J.M. Martínez de Ilarduya、A. Otero、P. Royo
    DOI:10.1016/0022-328x(88)80074-3
    日期:1988.2
    [Nb(η5-C5H4SiMe3)2-(CRNR′)]n(R  Me, R′  Cy (IX); R  CH2SiMe3, R′  Cy (X) and R  Me, R′  Ph (XII)), through spontaneous insertion of the isocyanide ligand into the alkyl-niobium bond. Insertion of t-BuNC into the metal-alkyl bond in IV was not observed, and only the alkyl isocyanide derivative Nb(η5-C5H4SiMe3)2(Me)(CNtBu) (XI) was isolated. The compounds were characterized by IR and NMR spectroscopy
    所述niobocene的还原配合物的Nb(η 5 -C 5 H ^ 3 RR')2氯2(RH,R'森达3(I); RR'森达3(II))与等效的一个(1%)中的异氰化物配体R“NC得到的Nb(η的存在钠汞齐5 - 5 ħ 3 RR')2 Cl(上CNR”)(RH,R'森达3,R“赛扬环己基(III);吨卜(IV);博士(V); 2,6-ME 2 ç 6 ħ 3(VI),并且RR'森达3,R“成分Cy(VII),吨Bu(VIII))。与石灰和使用LiCH III和V的反应2森达3得到热稳定的亚氨基化合物[Nb的(η 5 -C 5 H ^ 4森达3)2 - (CRNR')] Ñ(RMe中,R'成分Cy(IX ); RCH 2 SiMe 3,R'Cy(X)和RMe,R'Ph(XII)),是通过将异氰酸酯配体自发插入烷基-铌键来实现的。叔BuNC插入在IV的金属-
  • Reactions of metallocene niobium(III) isocyanide complexes with oxidizing reagents
    作者:Manuel Gómez、Jesús M. Martinez de Ilarduya、Pascual Royo
    DOI:10.1016/0022-328x(89)88007-6
    日期:1989.6
    New dicyclopentadienylniobium(III) complexes have been made by reducing NbCp2Cl2 (Cp = η5-C5H5, η5-C5H4SiMe3 and η5-C5H3(SiMe3)2) with Na/Hg in the presence of isocyanides CNR (R = Bun, But, Ph and 2,6-Me2C6H3). These compounds are readily oxidized by AgBF4, to give the corresponding niobium(IV) cations [NbCp2ClL]+, by O2 to give peroxoniobium(V) derivatives NbCp2Cl(η2-O2), and by t-butyl hydroperoxide
    新dicyclopentadienylniobium(III)配合物已经进行了通过减少国家预防腐败局2氯2(CP =η 5 -C 5 H ^ 5,η 5 -C 5 H ^ 4森达3和η 5 -C 5 H ^ 3(森达3)2)与的Na / Hg的在异氰化物CNR(R =卜的存在ñ,卜吨,pH和2,6-ME 2 ç 6 ħ 3)。这些化合物易于被AgBF 4氧化,得到相应的铌(IV)阳离子[NbCp 2CLL] +,被O 2,得到peroxoniobium(V)衍生物国家预防腐败局2氯(η 2 -O 2),和由叔丁基氢过氧化物,得到已知的氧代衍生物国家预防腐败局2氯(O),这也可以通过由氧从过氧化合物转移到三苯膦。
  • Synthesis of bis-silylated cyclopentadienyl niobium(IV) and (V) neutral and cationic complexes
    作者:A. Antiñolo、M. Fajardo、F.A. Jalón、A. Otero、M.C. Puerta、Y. Mugnier
    DOI:10.1016/s0277-5387(00)80668-3
    日期:1989.1
    New niobium(IV) complexes, Nb(η-C5H3RR′)2X2, R = H, R′ = SiMe3, X = Br (1), X = I (3); R = R′= SiMe3, X = Br (2), X = I (4), have been isolated in high yields from the reactions of Nb(η-C5H3RR′)2H3 and Nb(η-C5H3RR′)2X with EtBr and MeI. Both chemical and electrochemical oxidation processes of these niobium(IV) complexes produce the cationic niobium(V) compounds, [Nb(η-C5H4SiMe3)2X2]+, X = Cl (5), Br
    新铌(IV)配合物,铌(η-C 5 H ^ 3 RR')2 X 2,R = H,R'=森达3,X = Br的(1)中,X = I(3); R = R'=森达3,X = Br的(2)中,X = I(4),已经以高收率分离出选自Nb(η-C的反应的5 ħ 3 RR')2 ħ 3和Nb(η -C 5 H 3 RR')2 X与EtBr和MeI。这些铌的化学和电化学氧化工艺(IV)配合物产生阳离子铌(V)的化合物,[Nb的(η-C 5 H ^4 SiMe 3)2 X 2 ] +,X = Cl(5),Br(6),I(7),它们对亲核试剂(例如Me 2 SiOR )呈酸性,从而生成新的铌(V)烷氧基络合物,[Nb的(η-C 5 H ^ 4森达3)2 Cl(上OR)] +,R = CH 3(8),CH 2 CH 3(9),CH(CH 3)2(10)。这些化合物的光谱IR,ESR和NMR数据均可用。
  • Synthesis and electrosynthesis of bis-silylated cyclopentadienylniobium(V) cationic complexes. Their reactions and structural characterization
    作者:Antonio Antiñolo、Mariano Fajardo、Antonio Otero、Yves Mugnier、Hassane Nabaoui、Houssef Mourad
    DOI:10.1016/0022-328x(91)86098-b
    日期:1991.8
    Chemical oxidation of complexes Nb(η5-C5H4SiMe3)2X2, X = Cl (1), Br (2), I (3), with ferrocenium hexaflurophosphate in dichloromethane gives the cationic complexes [Nb(η5-C5H4SiMe3)2X2]+ PF6−, X = Cl (4), Br (5), I (6). These species can be prepared by electrochemical oxidation of complexes 1, 2 and 3 in dichloromethane; cationic complexes can also be prepared in THF but they are relatively unstable
    复合物的化学氧化铌(η 5 -C 5 H ^ 4森达3)2 X 2,X = Cl(上1),溴(2),I(3)中,用二茂铁hexaflurophosphate在二氯甲烷给出了阳离子络合物[铌(η 5 -C 5 H ^ 4森达3)2 X 2 ] + PF 6 -,X =氯(4),溴(5),I(6)。这些物质可以通过配合物1的电化学氧化来制备,2和3在二氯甲烷中;阳离子配合物也可以在THF中制备,但是它们相对不稳定。在N,N-二甲基甲酰胺(DMF)的配合物[Nb的(η 5 -C 5 H ^ 4森达3)2 X(DMF)] 2+的电致。配合物4,5和6表现为对于亲核试剂的酸,以使它们与醇和水,得到的加合物反应,(其中不能分离),并用我(IN3)的SiOR的试剂,得到新的铌(V)醇盐络合物[铌(η 5 -C 5 H ^ 4森达3)2 Cl(上OR)] + PF 6 -,R = CH 3(7),CH 2
  • Synthesis, structural characterization and reactivity of new tin bridged ansa-bis(cyclopentadiene) compounds: X-ray crystal structures of Me2Sn(C5Me4R-1)2 (R=H, SiMe3)
    作者:Santiago Gómez-Ruiz、Sanjiv Prashar、Mariano Fajardo、Antonio Antiñolo、Antonio Otero
    DOI:10.1016/j.jorganchem.2007.03.031
    日期:2007.6
    The organo-tin compounds, Me2Sn(C5H4R-1)2 (R = Me (1), Pri (2), But (3), SiMe3 (4)) and Me2Sn(C5Me4R-1)2 (R = H (5), SiMe3 (6)), were prepared by the reaction of Me2SnCl2 with the lithium or sodium derivative of the corresponding cyclopentadiene. Compounds 1–6 have been characterized by multinuclear NMR spectroscopy (1H, 13C, 119Sn). In addition the molecular structures of 5 and 6 were determined by
    的有机锡化合物中,Me 2的Sn(C 5 H ^ 4 R-1)2(R =我(1),PR我(2),卜吨(3),森达3(4))和Me 2 SN(通过使Me 2 SnCl 2与相应的环戊二烯的锂或钠衍生物反应来制备C 5 Me 4 R-1)2(R = H(5),SiMe 3(6))。化合物1 - 6已经通过多核NMR光谱法(1 H,13 C,119 Sn)表征。另外,通过单晶X射线衍射研究确定了5和6的分子结构。的转移金属化反应1 - 6用的ZrCl 4或[NbCl 4(THF)2 ],得到相应的金属茂配合物以高产率。
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