First- and Second-Generation Heterometallic Dendrimers Containing Ferrocenyl–Ruthenium(II)–Arene Motifs: Synthesis, Structure, Electrochemistry, and Preliminary Cell Proliferation Studies

Autor:	Gregory S. Smith, Patrick J. Bednarski, Alan T. Hutton, Heidi Lemmerhirt, Bruno Therrien, Preshendren Govender
Rok vydání:	2014
Předmět:	Stereochemistry Organic Chemistry chemistry.chemical_element Decane Electrochemistry Redox Propyleneimine Ruthenium Inorganic Chemistry chemistry.chemical_compound Crystallography chemistry Dendrimer Molecule Physical and Theoretical Chemistry Cyclic voltammetry
Zdroj:	Organometallics. 33:5535-5545
ISSN:	1520-6041 0276-7333
DOI:	10.1021/om500809g
Popis:	Four first- and second-generation heterometallic ferrocenyl derived p-cymene-Ru(II) metallodendrimers, of general formula [DAB-PPI{(η6-p-cymene)Ru((C7H5NO)-κ2-N,O)PTA(5-ferrocenylvinyl)}n][PF6]n and [DAB-PPI{(η6-p-cymene)Ru((C6H5N2)-κ2-N,N)Cl(5-ferrocenylvinyl)}n][PF6]n (where n = 4 (G1), 8 (G2), DAB = 1,4-diaminobutane, PPI = poly(propyleneimine), PTA = 1,3,5-triaza-7-phosphatricyclo[3.3.1.1]decane) have been synthesized. All complexes have been characterized using analytical (i.e., HR-ESI mass spectrometry, HPLC, elemental analysis, and cyclic voltammetry) and spectroscopic (i.e., 1H and 13C{1H} NMR and infrared) methods. Electrochemical studies reveal that the N,O-p-cymene-Ru(II)-PTA complexes result in two irreversible redox processes (oxidation of the Fe(II) and Ru(II) centers), while the N,N-p-cymene-Ru(II) complexes display one reversible wave (Fe(II)/Fe(III) couple). Heterometallic model complexes have been prepared, and for one of the complexes, its molecular structure has been determined by sing...
Databáze:	OpenAIRE
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