hexakis-(4-methoxy-phenyl)-diplumbane | 25920-39-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: hexakis-(4-methoxy-phenyl)-diplumbane
• 英文别名: Hexakis-(4-methoxy-phenyl)-diplumban
• CAS: 25920-39-2
• 化学式: C₄₂H₄₂O₆Pb₂
• 分子量: 1057.19
• InChiKey: HRHHKJBUSZFVKC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.46
• 重原子数：
  50
• 可旋转键数：
  12
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  55.4
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  hexakis-(4-methoxy-phenyl)-diplumbane 在 盐酸 、 苯 作用下， 生成 di-[2]furyl-bis-(4-methoxy-phenyl)-plumbane
  参考文献：
  名称：

  Relative Reactivities of Organometallic Compounds. XXII.^* Hydrogen Chloride Cleavage Rates of p-Methoxyphenyl-2-furyllead Compounds

  摘要：

  DOI：

  10.1021/ja01872a054
• 作为产物：
  描述：

  4-甲氧基苯基溴化镁 在 乙醚 、 lead(II) chloride 作用下， 生成 tetrakis(4-methoxyphenyl)plumbane 、 hexakis-(4-methoxy-phenyl)-diplumbane
  参考文献：
  名称：

  Relative Reactivities of Organometallic Compounds. XXII.^* Hydrogen Chloride Cleavage Rates of p-Methoxyphenyl-2-furyllead Compounds

  摘要：

  DOI：

  10.1021/ja01872a054

文献信息

• Relative Reactivities of Organometallic Compounds. XXI. Organolead Radicals and Derivatives
  作者：Henry. Gilman、James C. Bailie

  DOI：10.1021/ja01872a053

  日期：1939.3
• On Mixed Group 14-Group 14 Bonds. 8. Asymmetrically Substituted Compounds Ar3PbGeAr'3 and Ar3PbPbAr'3: Comparison of Structure and Physical Behavior in the Series of Bonds Sn-Sn, Pb-Ge, Pb-Sn, and Pb-Pb
  作者：Hans-Juergen Koglin、Kerstin Behrends、Martin Draeger

  DOI：10.1021/om00019a033

  日期：1994.7

  A general procedure for the synthesis of hexaarylated compounds of the type Ar3PbGeAr's from Ar3PbLi and Ar'3GeX in THF/ether at -60-degrees-C is given. Likewise, from Ar3PbLi and Ar'PbI the asymmetrical diplumbanes Ar3PbPbAr3 could be prepared. By the use of the bulky groups Ar and Ar', the migration of aryl groups could be suppressed, avoiding the appearance of the mixtures Pb2Ar6-nAr'n (n = 0-6). Nonetheless, the resulting diplumbanes Ar3Pb-PbAr'3 were always partially contaminated with some symmetric Pb2Ar6 and Pb2Ar'6. The structures of (p-Tol)3PbGePh3 (triclinic, space group P1BAR; a = 9.983(1) b = 12.201(1) c = 15.728(2) angstrom; alpha = 95.73(1), beta = 103.56(1), gamma = 113.06(1)degrees; V = 1674(1) angstrom3; Z = 2; R = 0.0434) and (p-Tol)3PbGe-(p-Tol)3 (trigonal, space group R3BAR; a = 13.338(1), c = 36.55(1) angstrom; V = 5631(2) angstrom3; Z = 6; R = 0.0522) have been determined. NMR chemical shifts delta(Sn-119) and delta(Pb-207) (40 compounds) and one-bond couplings 1J(M-M') (16 compounds), stretching vibrations nu(M-M') and force constants f(M-M') for a diatomic oscillator (38 compounds), and bond distances d(M-M') (18 compounds) are compared for all six combinations M/M' = Ge/Sn/Pb of Ar3M-M'Ar'3. Concerning the asymmetric diplumbanes Ar3Pb-PbAr'3, assignments of delta(Pb-207) resulted from a consideration of inductivity (comparison to PbAr4/Ar'4) and an assumed order of charge flow DELTA(Ar <-> Ar') (13 compounds). Sequences exist for delta(Sn-119) (Pb-Sn > Sn-Sn greater-than-or-equal-to Sn-Ge), delta(Pb-207) (Pb-Pb > Pb-Sn almost-equal-to Pb-Ge), f (Sn-Ge > Sn-Sn greater-than-or-equal-to Pb-Sn, and Pb-Ge > Pb-Sn greater-than-or-equal-to Pb-Pb), d (Sn-Ge less-than-or-equal-to Pb-Ge < Sn-Sn less-than-or-equal-to Pb-Sn less-than-or-equal-to Pb-Pb) and reduced spin-spin couplings 1K (Pb-Sn > Sn-Sn > Pb-Pb ''scatter''). The polarities Pb(delta-)-Ge(delta+) and Pb(delta-)-Sn(delta+) are obvious. The enhanced electronegativity of lead demonstrates the influence of its relativistically contracted 6s and 6p orbitals. With regard to Ar3Pb-PbAr'3, a relation between 1K(Pb-Pb) and the charge flow DELTA(Ar <-> Ar') is indicated.