title: Synthesis, electrochemistry, and interactions with beta-cyclodextrin of dendrimers containing a single ferrocene subunit located "off-center".
abstract: Two series of dendrimers containing a single ferrocene unit located in the focal point of these macromolecules have been synthesized and characterized. The first series of dendrimers has considerable lipophilic character, with tert-butyl ester groups located in their peripheral regions. In contrast, the second series of dendrimers was obtained by the hydrolysis of these peripheral ester groups, yielding water-soluble dendrimers with carboxylic acid groups in their surfaces. The electrochemical properties of these macromolecules were strongly affected by the dendritic groups attached to the ferrocene subunits. Host-guest interactions between the water-soluble dendrimers and the well-known receptor beta-cyclodextrin were also investigated. The dendritic groups were found to hamper markedly the formation of inclusion complexes between the cyclodextrin receptor and the dendrimer's ferrocene unit.
authors.affiliation: Center for Supramolecular Science, University of Miami, Coral Gables, Florida 33124-0431, USA.
authors.forename: C M
authors.initials: CM
authors.lastname: Cardona
authors.forename: T D
authors.initials: TD
authors.lastname: McCarley
authors.forename: A E
authors.initials: AE
authors.lastname: Kaifer
mesh_terms: D001665:Binding Sites; D002625:Chemistry, Organic; D003505:Cyclodextrins / Q000737:chemistry / Q000378:metabolism*; D004563:Electrochemistry; D004952:Esters / Q000138:chemical synthesis; D007501:Iron / Q000737:chemistry / Q000378:metabolism; D013058:Mass Spectrometry; D008958:Models, Molecular; D015394:Molecular Structure; D055601:Organic Chemistry Phenomena; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D011073:Polyamines / Q000138:chemical synthesis / Q000737:chemistry* / Q000378:metabolism*; D012995:Solubility; D012997:Solvents; D047392:beta-Cyclodextrins
chemical_list: D003505:Cyclodextrins; D004952:Esters; D009942:Organometallic Compounds; D011073:Polyamines; D012997:Solvents; D047392:beta-Cyclodextrins; D007501:Iron; C031215:betadex