bis(η-cyclopentadienyl)lead(II) | 90623-40-8

• 分子结构分类: 有机化合物 - 碳氢化合物 - 芳香烃
• 英文名称: bis(η-cyclopentadienyl)lead(II)
• 英文别名: bis(cyclopentadienyl)lead(II)；PbCp2
• CAS: 90623-40-8
• 化学式: 2C₅H₅*Pb
• 分子量: 337.389
• InChiKey: CILDVLRTMZITOU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.02
• 重原子数：
  6.0
• 可旋转键数：
  0.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  bis(η-cyclopentadienyl)lead(II) 在 溶剂黄146 作用下， 以 乙醚 为溶剂， 以99%的产率得到lead acetate
  参考文献：
  名称：

  有机脂化学。第四部分 双（η-环戊二烯基）铅（II）的裂解反应和η-环戊二烯基铅（II）卤化物的制备

  摘要：

  双（η环戊二烯基）铅（II）与HX进行反应，得到的Pb（η-C 5 H ^ 5）X时，X =氯，溴，I，或梅科2和PBX 2时X =卜吨CO 2。RCOCHCOR（R = Me中，CF 3，或卜吨）和RO（R = Me或卜吨）中，用碘和甲基碘，得到的Pb（η-C 5 H ^ 5）I，并用乙酰氯，得到铅（η-C 5 H ^ 5）氯。化合物的Pb（η-C 5 H ^ 5）X被认为具有与桥连基团X的聚合物结构。

  DOI：

  10.1039/dt9760000435
• 作为产物：
  描述：

  sodium cyclopentadienide 、 lead(II) iodide 以 四氢呋喃 为溶剂， 以38%的产率得到bis(η-cyclopentadienyl)lead(II)
  参考文献：
  名称：

  Agostic-Type B−H···Pb Interactions Stabilize a Dialkylplumbylene. Structure of and Bonding in [{nPr₂P(BH₃)}(Me₃Si)C(CH₂)]₂Pb

  摘要：

  The reaction between Cp2Pb and 1 equiv of [[{nPr(2)P(BH3)}(Me3Si)C(CH2)]Li(THF)(2)](2) in toluene affords the dialkylplumbylene [(nPr(2)P(BH3))(Me3Si)C(CH2)](2)Pb (10) in excellent yield; compound 10 may readily be separated into its two diastereomeric forms by a simple crystallization procedure. X-ray crystallography shows that rac- and meso-10 crystallize as discrete dialkylpluinbylenes in which there are either two (rac-10) or one (meso-10) short agostic-type B-H...Pb contacts; for meso-10 there is a secondary, weak B-H...Pb contact, which affords this diastereomer a further, weak stabilization. Multielement and variable-temperature NMR studies indicate that, while rac-10 is essentially static in solution, meso-10 undergoes dynamic exchange between the free and bound BH3 groups. Unusually, the methylene backbone protons in both diastereomers (at low temperature for meso-10) lie within the range 2.5-6.5 ppm, possibly due to the close proximity of the 6s lone pair on the lead center. DFT studies indicate that there is significant delocalization of B-H a-bonding electron density into the vacant lead 6p orbital, furnishing an overall stabilization of 40.6 and 30.3 kcal mol(-1) for rac- and meso-10, respectively.

  DOI：

  10.1021/om800598b

文献信息

• Permetalloplumbanes: Preparation of [Pb{Co(CO)3(L)}4] and [Pb{Fe(CO)2(NO)(L)}4].
  作者：Paul Hackett、A.R. Manning

  DOI：10.1016/s0277-5387(00)81066-9

  日期：1982.1

  The sole and unexpected products from the reactions of a variety of lead (II) and lead (IV) compounds with [Co2(CO)6(L)2] complexes (L = tertiary arsine, phosphine, or phosphite) in refluxing benzene solution are the blue, air-stable percobaltoplumbanes [PbCo(CO)3(L)}4]. These have also been obtained from the reaction of Na[Co(CO)3(L)] (L  PBu3n) with lead (II) acetate which with Na[Fe(CO)2(NO)(L)]

  各种铅（II）和铅（IV）化合物与[Co 2（CO）6（L）2 ]配合物（L =叔a，膦或亚磷酸酯）在回流的苯中反应的唯一且出乎意料的产物解决方案是蓝色的，空气稳定的过钴钴铝[Pb Co（CO）3（L）} 4 ]。这些也是从Na [Co（CO）3（L）]（LPBu 3 n）与乙酸铅（II）的反应中获得的，乙酸铅与Na [Fe（CO）2（NO）（L）]形成等电子[Pb Fe（CO）2（NO）（L）} 4 ] [LP（OPh）3 ]。复合物中的IR光谱v（CO）和v（NO）区域与四面体PbCo 4或PbFe 4片段，关于钴或铁原子的三角双锥体配位以及线性PbCoAs，PbCoP或PbFeP系统一致。与[Pb Co（CO）4 } 4 ]不同，当溶解在供体中时，我们的络合物不会解离为[Co（CO）3（L）] -或[Fe（CO）2（NO）（L）] -离子。溶剂。
• The crystal and molecular structure of adamanta-(µ₄-oxo-hexakis(µ-triphenylsiloxy)-tetralead(<scp>II</scp>)
  作者：Christine Gaffney、Philip G. Harrison、Trevor J. King

  DOI：10.1039/c39800001251

  日期：——

  The crystal and molecular structure of the title compound, [Pb4(OSiPh3)6O], obtained from the reaction of triphenylsilanol and bis(cyclopentadienyl) lead(II), is described.

  本文描述了标题化合物[Pb4(OSiPh3)6O]的晶体和分子结构，该化合物是由三苯基硅醇和双(环戊二烯)铅(II)反应得到的。
• Structural Control in the Formation of Multidecker Sandwich Anions of Plumbocene:  The Effects of Encapsulating the Alkali Metal Counterions
  作者：Michael A. Beswick、Heinz Gornitzka、Jörg Kärcher、Marta E. G. Mosquera、Julie S. Palmer、Paul R. Raithby、Christopher A. Russell、Dietmar Stalke、Alexander Steiner、Dominic S. Wright

  DOI：10.1021/om980777p

  日期：1999.3.1

  C5H5; E = Sn, Pb) produces π-anions of general formula [Cp2x+1Ex]-. Multidecker anions (with x > 1) can be prepared for Pb if crown or cryptand ligands coordinate the alkali metal cations. The syntheses and structures of the new complexes [Cp3Sn]-·[Li(12-crown-4)2]+ (2), [Cp2Pb(μ-Cp)Na·(15-crown-5)] (3), [Cp5Pb2]-[K(2,2,2-crypt)]+·THF (4), [Cp2Pb(μ-Cp)Pb(μ-Cp)Cs(18-crown-6)] (5), and [Cp5Pb2]-[Li(12-crown-4)2]+·2THF

  CPM（CP = C的另外5 ħ 5 ; M =锂，钠，钾，铯）与CP 2 E（CP = C ^ 5 ħ 5 ; E =锡，铅）产生π通式[CP的-anions 2 X +1 E x ] -。如果冠或穴状配体配位碱金属阳离子，则可以制备Pb的多层阴离子（x > 1）。新配合物[CP 3 Sn] - ·[Li（12-crown-4）2 ] +（2），[CP 2 Pb（μ - CP ）Na·（15-crown-5）]的合成与结构（3），[CP 5 Pb 2 ] - [K（2,2,2-crypt）] + ·THF（4），[CP 2 Pb（μ - CP ）Pb（μ- CP）Cs（18-crown-6） ）]（5），和混合[CP 5的Pb 2 ] - [李（12-冠-4）2 ] + ·2THF（6）的报告。这项研究以及[CP 9 Pb 4 ] - [CP 5 Pb 2 ] - [Li（12-crown-4）2
• Solvent directed aggregation of a metallocene; structures of {[Pb(η-C5H5)2]3 ·C6H5Me}∞ and [Pb(η-C5H5)2]6
  作者：Michael A. Beswick、Catherine Lopez-Casideo、Michael A. Paver、Paul R. Raithby、Christopher A. Russell、Alexander Steiner、Dominic S. Wright

  DOI：10.1039/a607561d

  日期：——

  The classic zigzagged chain structure of orthorhombic plumbocene, [Pb(η-C 5 H 5 ) 2 ] ∞ , is obtained by crystal growth from the vapour phase; however, crystallisation from toluene results in modification of the conformation of the polymer chain, as observed in the solvate [Pb(η-C 5 H 5 )·C 6 H 5 Me ] ∞ 1, and cyclisation into hexamers, as seen in the new hexagonal phase [Pb(η-C 5 H 5 ) 2 ] 6 2.

  斜方铅茂经典的锯齿状链结构， [Pb(γ-C 5 H 5 ） 2 ] Ø ， 是 通过气相晶体生长获得；然而，结晶 甲苯导致聚合物构象的改变 链，如在溶剂化物中观察到的 [Pb(γ-C 5 H 5 )·C 6 H 5 我 ] Ø 1，环化成六聚体，如新的 六方相 [Pb(γ-C 5 H 5 ） 2 ] 6 2.