期刊
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
卷 -, 期 11, 页码 1729-1735出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.200901187
关键词
Ruthenium; Dendrimers; Sandwich complexes; Polynuclear complexes; N ligands
资金
- Fundacao para a Ciencia e a Tecnologia (FCT) [PTDC/QUI/64202/2006]
- Socrates/Erasmus Program
- Academy of Finland [212588]
- Portuguese National Nuclear Magnetic Resonance and Mass Spectrometry Networks [PTNMR-REDE/1517/RMN/2005, RNEM-REDE/1508/REM/2005]
- POCI 2010 (FEDER)
- Fundação para a Ciência e a Tecnologia [PTDC/QUI/64202/2006] Funding Source: FCT
Complete functionalization of N,N,N',N'-[tetrakis(cyanoethyl)hexamethylenediamine] [N=C(CH2)(2)](2)N(CH2)(6)N[(CH2)(2)-C=N](2) (4) and N,N,N',N' itetrakis(cyanoethoxypropyl)hexamethylenediaminel [N=C(CH2)(2)O(CH2)(3)](2)N(CH2)(6)N[(CH2)(3)O(CH2)(2)C=N](2) (7) with the organometallic moiety [Ru(eta(5)-C5H5)(PPh3)(2)Cl] and the five-coordinate cis-[RuCl(dppe)(2)] [PF6] [dppe = 1,2-bis(diphenylphosphanyl)ethane] was attained with good yield, respectively, by treating the metallo-fragment with the core in methanol (at room temperature and in presence of TIPF6 as a chloride abstractor) and in 1,2-dichloroethane (under reflux). These novel nitrile-functionalized poly(alkylidenamine) dendrimers peripherally functionalized with the ruthenium moieties [Ru(eta(5)-C5H5)(PPh3)(2)](+) and [RuCl(dppe)(2)](+) (8-11) were fully characterized by NMR (H-1, C-13, P-31), TOF-MS and FTIR. The present results represent a step forward in the knowledge of the most adequate synthetic strategy for total coordination of poly(alkylidenamine) nitrile core derivatives to the different ruthenium complex moieties and confirm the versatility of these systems as building blocks in metallodendrimer chemistry.
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