Citation:
JIA Chengguo, WANG Yunpu. SYNTHESIS AND CATALYTIC PROPERTY OF POLYMER-SUPPORTED Fe-Co HETEROTETRAMETALLIC CLUSTERS[J]. Chinese Journal of Polymer Science,
;1993, 11(4): 370-374.
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Four polymer-supported Fe-Co tetrametallic clusters have been prepared by ion exchange and ligand exchange. Their structures were characterized by IR, UV/visible diffuse reflectance spectra and elemental analysis, and by analogy with the reference cluster PhCH2NMe3FeCo3 (CO)2 . The four heterogenous clusters were efficient catalysts in the hydroformylation of 1-hexene, turnover numbers amounted to 823 — 924 with the yield of 83.2—92.4% heptyl aldehydes and ratios of normal aldehyde to iso-aldehyde of 1.2 — 1.6,they are facilitated forming the normal aldehyde in comparison with the homogenous analogus.For the polymer-supported clusters prepared by ion exchange,the polymer-cation parts had no obvious effect on the activity of the cluster anion.The polymer-phosphine substituted cluster prepared by ligand exchange was more stable than the clusters preparedby ion exchange.
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