Re2(μ-Br)(μ-dppm)2Br3(CO) | 102781-92-0

• 英文名称: Re2(μ-Br)(μ-dppm)2Br3(CO)
• CAS: 102781-92-0
• 化学式: C₅₁H₄₄Br₄OP₄Re₂
• 分子量: 1488.83
• InChiKey: KRFMPAYOOJQKJV-UHFFFAOYSA-J

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
  None
• 氢给体数：
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• 氢受体数：
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反应信息

• 作为反应物：
  描述：

  Re2(μ-Br)(μ-dppm)2Br3(CO) 在 CO 作用下， 以 二氯甲烷 为溶剂， 生成 {Re2Br3(dppm)2(CO)2}
  参考文献：
  名称：

  Fanwick, Phillip E.; Price, Andrew C.; Walton, Richard A., Inorganic Chemistry, 1987, vol. 26, # 23, p. 3920 - 3926

  摘要：

  DOI：
• 作为产物：
  描述：

  Re2Br4(dppm)2 在 carbon monoxide 作用下， 以 二氯甲烷 为溶剂， 以80%的产率得到Re2(μ-Br)(μ-dppm)2Br3(CO)
  参考文献：
  名称：

  Mixed carbonyl-isocyanide and carbonyl-nitrile complexes derived from the reactions of the multiply bonded dirhenium(II) complexes Re2X4(dppm)2(CO) (X = chloro or bromo-; dppm = Ph2PCH2PPh2). The structural characterization of Cl2Re(.mu.-Cl)(.mu.-dppm)2ReCl(CO) and Cl2Re(.mu.-Cl)(.mu.-CO)(.mu.-dppm)2ReCl(CNxylyl)

  摘要：

  DOI：

  10.1021/ja00276a023

文献信息

• Mixed carbonyl–nitrile complexes of dirhenium(II). The structural characterization and reactivity of salts of the [Re2Cl3(μ-dppm)2(CO)(NCMe)n]+ cations (dppm=Ph2PCH2PPh2, n=1 or 2)
  作者：James Chantler、Phillip E Fanwick、Richard A Walton

  DOI：10.1016/s0022-328x(00)00247-3

  日期：2000.6

  monocarbonyl complexes Re2X4(μ-dppm)2(CO) (X=Cl or Br) react with stoichiometric quantities of the nitriles RCN (R=Me or Ph) in the presence of TlY (Y=PF6 or O3SCF3) to afford complexes of the type [Re2X3(μ-dppm)2(CO)(NCR)]Y and [Re2X3(μ-dppm)2(CO)(NCR)2]Y in high yield. Crystal structure determinations on the salts [Re2Cl3(μ-dppm)2(CO)(NCMe)]O3SCF3 and [Re2Cl3(μ-dppm)2(CO)(NCMe)2]ReO4 have shown that the former

  单羰基络合物Re 2 X 4（μ-dppm）2（CO）（X = Cl或Br）在TlY（Y = PF 6或O ）存在下与化学计算量的腈RCN（R = Me或Ph）反应3 SCF 3）提供[Re 2 X 3（μ-dppm）2（CO）（NCR）] Y和[Re 2 X 3（μ-dppm）2（CO）（NCR）2 ] Y型复合物高产。盐[Re 2 Cl 3（μ-dppm）2（CO）（NCMe）] O 3 SCF 3和[Re 2Cl 3（μ-dppm）2（CO）（NCMe）2 ] ReO 4表明前者具有不对称结构[（MeCN）（CO）ClRe（μ-dppm）2 ReCl 2 ] +，且具有ReRe键（ReRe距离为2.2881（7）Å），而双腈复合物是边缘共享的双八面体[[MeCN）ClRe（μ-Cl）（μ-CO）（μ-dppm）2 ReCl（NCMe） ] +，用清一色顺μ-CO和两个MeCN中的
• Reactions of the A-frame-like monocarbonyl complexes Re2(μ-X)(μ-dppm)2X3(CO) (X = Cl or Br; dppm = Ph2PCH2PPh2) with trimethylphosphine and trialkylphosphite ligands. The structural characterization of [Re2(μ-Cl)(μ-CO)(μ-dppm)2Cl2(PMe3)2]Cl
  作者：Ju-Sheng Qi、Phillip E. Fanwick、Richard A. Walton

  DOI：10.1016/s0277-5387(00)86235-x

  日期：1990.1

  bromo-derivative [Re2Br3(dppm)2(CO)(PMe3)2]PF6, and the phosphite complexes Re2Cl3(dppm)2(CO)[P(OR)3]2}PF6 (R = Me or Et). IR spectroscopy shows that the CO ligand is bridging the two metal centres (ν(CO) ca 1635 cm−1 for the PMe3 complexes and ca 1680 cm−1 for the P(OR)3 derivatives). This conclusion has been confirmed by a crystal structure determination on [Re2Cl3(dppm)2(CO)(PMe3)2]Cl·1/2CH2Cl2. The crystallographic

  室温下，1：1羰基加合物Re 2 Cl 4（dpPM）2（CO）与PMe 3在CH 2 Cl 2中反应，得到绿色的反磁性配合物[Re 2 Cl 3（dpPM）2（CO）（PMe 3））2 ] Cl。当在NaBPh 4或TlPF 6的存在下分别以THF或CH 2 Cl 2作为反应溶剂进行相似的反应时，盐[Re 2 Cl 3（dpPM）2（CO）（PMe 3）2生成] X（X = BPh 4或PF 6）。已使用类似程序制备溴衍生物[Re 2 Br 3（dpPM）2（CO）（PMe 3）2 ] PF 6和亚磷酸酯络合物Re 2 Cl 3（dpPM）2（CO）[P （OR）3 ] 2 } PF 6（R = Me或Et）。IR光谱显示了该配位体的CO被桥接两个金属中心（ν（CO）CA 1635厘米-1为PME 3络合物和CA 1680厘米-1对于P（OR）3导数）。通过[Re 2 Cl 3（dpPM）2（CO）（PMe
• Monocarbonyl Complexes of the Type Re2X4(.mu.-dppm)2(CO) (X = Cl, Br; dppm = Ph2PCH2PPh2) Revisited. Reactions of the Bromo Complex Re2Br4(.mu.-dppm)2(CO) with tert-Butyl and Xylyl Isocyanides
  作者：Wengan Wu、Phillip E. Fanwick、Richard A. Walton

  DOI：10.1021/ic00127a019

  日期：1995.11

  One of the two isomeric forms of the complex Re2Br4(mu-dppm)(2)(CO) (1b), both of which are formed by the reaction of the triply bonded complex Re2Br4(mu-dppm)(2) with CO, is shown to have the same A-frame-like structure as that characterized previously for Re2Cl4(mu-dppm)(2)(CO) (1a) by X-ray crystallography. Crystal data for Re2Br4(mu-dppm)(2)(CO) . CH2Cl2 (1b) at 293 K: monoclinic space group Cc (No. 9) with a 19.584(5) Angstrom, b = 17.109(2) Angstrom, c = 17.649(6) Angstrom, beta = 105.99(2)degrees, V = 5686(5) Angstrom(3), Z = 4. The structure was refined to R = 0.055 (R(W) = 0.073) for 4891 data with I > 3.0 sigma(I). The CO ligand is terminally bound, and the Re-Re distance of 2.336(1) Angstrom accords with the retention of a Re=Re bond. The second isomeric form of Re(2)X(4)(mu-dppm)(2)(CO) has been identified as having an open unsymmetrical structure X(3)Re(mu-dppm)(2)ReX(CO). The reaction of 1b with xylyl and tert-butyl isocyanides produces bioctahedral complexes of the type (RNC)Br2Re(mu-dppm)(2)ReBr2(CO) (R = xylyl (3a), t-Bu (3b)), in which two Re-Br bonds are collinear with the Re=Re bond, and the terminally bound RNC and CO ligands are anti to one another on separate Re centers. This structure has been established by a single-crystal X-ray structure determination of 3b. Crystal data for Re2Br4(mu-dppm)(2)(CO)(CN-t-Bu). CH2Cl2 . 2.5C(6)H(6) (3b) at 203 K: monoclinic space group P2(1)/n (No. 14) with a = 12.892(2) Angstrom, b = 19.478(4) Angstrom, c = 27.231(4) Angstrom, beta = 93.623(13)degrees, V = 6824(4) Angstrom(3), Z = 4. The structure was refined to R = 0.066 (R(W) = 0.084) for 5165 data with I > 3.0 sigma(I). The Re-Re distance is 2.381(1) Angstrom. The mixed carbonyl-isocyanide complexes 3a and 3b react with TlO3SCF3 in dichloromethane to give the triply-bonded compounds [Re2Br3(mu-dppm)(2)(Co)(CNR)]O(3)sCF(3) (R = xylyl (49), t-Bu (4b)),which have an unsymmetrical structure with the two metal centers possessing different coordination numbers and the CO and RNC ligands trans to one another. This conclusion is based upon a single-crystal X-ray structure determination of 4a. Crystal data for [Re2Br3(mu-dppm)(2)(CO)(CNxyl)]O3SCF3 (4a) at 293 K: monoclinic space group P2(1)/c (No. 14) with a = 14.182(3) A, b = 15.749(4) Angstrom, c = 31.580(5) Angstrom, beta = 98.58(2)degrees, V = 6974(5) Angstrom(3), Z = 4. The structure was refined to R = 0.066 (R(W) = 0.088) for 5333 data with I > 3.0 sigma(I). A comparison is made between these results and those obtained previously for the related dirhenium chloro complexes which contain CO and RNC ligands.
• Shih, Keng-Yu; Fanwick, Phillip E.; Walton, Richard A., Organometallics, 1993, vol. 12, # 2, p. 347 - 351
  作者：Shih, Keng-Yu、Fanwick, Phillip E.、Walton, Richard A.

  DOI：——

  日期：——