| 141216-84-4

• CAS: 141216-84-4
• 化学式: C₁₁H₉O₅W*Na
• 分子量: 428.029
• InChiKey: XQXYHAHSSMTRMD-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  、 以 四氢呋喃 为溶剂， 以23.1%的产率得到[CH2OCO(μ3-C)Co2W(CO)8(C5H4CO2CH2CH3)]2
  参考文献：
  名称：

  Regioselective Metal Exchange Reactions in Linked Clusters

  摘要：

  Regioselective metal exchange reactions in linked clusters, [(CO)(9)Co-3(mu (3)-C)COOCH2](2) (1) and (CO)(9)Co-3(mu (3)-C)COOCH2(mu -CCH)Co-2(CO)(6) (2), were investigated. The reactions of 1 with Na[M(CO)(3)(C5H4R)] (M = Mo, W; R = H, COCH3, COOC2H5) gave one-step or two-step exchange products, (CO)(9)Co-3(mu (3)-C)COOCH2CH2OCO(mu (3)-C)Co2M(CO)(8)(C5H4R) (3a, M = Mo, R = H; 3b, M = Mo, R = COCH3; 3c, M = Mo, R = COOC2H5; 3d, M = W, R = H; 3e, M = W, R = COCH3; 3f, M = W, R = COOC2H5) or [(CO)(8)(C5H4R)Co2M(mu (3)-C)COOCH2](2) (4a, M = Mo, R = H; 4b, M = Mo, R = COCH3; 4c, M = Mo, R = COOC2H5; 4d, M = W, R = H; 4e, M = W, R = COCH3; 4f, M = W, R = COOC2H5). The reactions of 1 with Na-2[p-{M(CO)(3)C5H4-CO}(2)C6H4] (M = Mo, W) gave cyclic clusters, CH2OCO(mu (3)-C)Co2M(CO)(8)C5H4COC6H4- COC5H4(CO)(8)MCo2(mu (3)-C)COOCH2 (5a, M = Mo; 5b, M = W). Further reaction of Se or 4e with Na[Mo(CO)(3)(C5H5)] gave a two-step exchange product, (CO)(8)(C5H5)Co2Mo(mu (3)-C)COOCH2CH2OCO(mu (3)-C)CoMoW(CO)(7)(C5H5)(C5H4COCH3) (6) [(CO)(7)(C5H5)(C5H4COCH3)CoMoW(mu (3)-C)COOCH2](2) (7). The reactions of 2 with Na[Mo(CO)(3)(C5H4R)] (R = H, COCH3, COOC2H5) also gave one-step or two-step exchange products, (CO)(8)(C5H4R)Co2Mo(mu (3)-C)COOCH2O(mu -CCH)Co-2(CO)(6) (8a, R = H; 8b, R = COCH3; 8c, R = COOC2H5) or (CO)(7)(C5H4R)(2)CoMo2(mu (3)-C)COOCH2(mu -CCH)Co-2(CO)(6) (9a, R = H; 9b, R = COCH3; 9c, R = COOC2H5). The reaction of 2 with Na-2[p-{Mo(CO)(3)C5H4CO}(2)C6H4] gave a linear cluster, p-[(CO)(6)Co-2(mu -CHC)CH2OCO(mu (3)-C)Co2Mo(CO)(8)C5H4CO](2)C6H4 (10) The structures of 3a and 8a have been determined by single-crystal X-ray diffraction.

  DOI：

  10.1021/om000627q

文献信息

• The reaction of the precursor PhCCo3(CO)9 with NaW(CO)3(RCp): Characterization and crystal structure of the clusters(μ3-CPh)Co2W(CO)8(RCp (RHCO, CH3CO, C2H5OCO)
  作者：He-Ping Wu、Yuan-Qi Yin、Xiao-Ying Huang

  DOI：10.1016/0277-5387(95)00118-c

  日期：1995.9

  mu(3),-Phenylmethylidyne trimetal carbonyl clusters (mu(3)-CPh)Co2W(CO)(8)(RCp) (2a:R = HCO;3a:R = CH3CO;4a: R = C2H5OCO) have been obtained from a solution of the precursor (mu(3)-CPh)Co-3(CO)(9) refluxing with the metal exchange reagents NaW (CO)(3)(RCp) in THF. The results Showed that electron-withdrawing groups on the cyclopentadienyl affected the activity of the metal exchange reagents NaW(CO)(3)(RCp) and the above reaction was accelerated thermally. The results further showed that the metal carbonyl unit Co(CO)(3) in the precursor PhCCo(3)(CO)(9) can be exchanged by the organometallic group W(CO)(2)(RCp). The clusters were characterized by C/H analysis, IR and H-1 NMR and by crystal structure determination for cluster 3a.