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Issue 17, 2004
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Synthesis of new poly(propylenimine) dendrimers DAB-dendr-[NH(O)COCH2CH2OC(O)C5H4Rh(NBD)]n {n = 4, 8, 16, 32, 64} functionalized with alkoxycarbonylcyclopentadienyl complexes of rhodium(i)

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Abstract

The reaction between [Rh{C5H4CO2(CH)2OH}(NBD)] (1) and 1,1′-carbonyldiimidazole (CDI) leads to the new CO2imidazole functionalized alkoxycarbonylcyclopentadienyl complex [Rh{C5H4CO2(CH2)2O2C–Im}(NBD)] (2) (Im = imidazole). The latter was treated with five generations of poly(propylenimine) dendrimers DAB-dendr-(NH2)n {n = 4, 8, 16, 32, 64} (DAB = diaminobutane) to accomplish the synthesis of the new organometallic dendritic macromolecules DAB-dendr-[NH(O)COCH2CH2OC(O)C5H4Rh(NBD)]n {n = 4 (4), 8 (5), 16 (6), 32 (7), 64 (8)} based on flexible poly(propylenimine) dendrimer cores, built up to the fifth generation. Spectroscopic characterization of all the new compounds will be presented and discussed.

Graphical abstract: Synthesis of new poly(propylenimine) dendrimers DAB-dendr-[NH(O)COCH2CH2OC(O)C5H4Rh(NBD)]n {n = 4, 8, 16, 32, 64} functionalized with alkoxycarbonylcyclopentadienyl complexes of rhodium(i)

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Article information


Submitted
11 May 2004
Accepted
05 Jul 2004
First published
29 Jul 2004

Dalton Trans., 2004, 2767-2770
Article type
Paper

Synthesis of new poly(propylenimine) dendrimers DAB-dendr-[NH(O)COCH2CH2OC(O)C5H4Rh(NBD)]n {n = 4, 8, 16, 32, 64} functionalized with alkoxycarbonylcyclopentadienyl complexes of rhodium(I)

L. Busetto, M. C. Cassani, P. W. N. M. van Leeuwen and R. Mazzoni, Dalton Trans., 2004, 2767
DOI: 10.1039/B407092E

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