para-Halogenated Benzaldehyde Molecules included in Cyclodextrins: a combined thermogravimetric and spectroscopic study. Abstract The inclusion complexes of 4-X-benzaldehyde guests (X = F, Cl, Br) in alpha-, beta-and gamma-cyclodextrins (alpha CD, beta CD and gamma CD) were prepared and characterized by means of thermogravimetry, differential scanning calorimetry (DSC) and vibrational spectroscopy. The stoichiometry of the inclusion…

Experimental and Theoretical Study of the Encapsulation of a Linear Oligo(ferrocenylsilane) Trimer with b-cyclodextrin. Abstract An inclusion compound comprising β-cyclodextrin (β-CD) and the trimetallic oligo(ferrocenylsilane) FcSiMe2[(η5-C5H4)Fe(η5-C5H4SiMe2)]Fc [Fc = (η5-C5H5)Fe(η5-C5H4)] has been prepared and characterised in the solid state by elemental analysis, powder X-ray diffraction, thermogravimetric analysis and magic angle spinning NMR spectroscopy (13C, 29Si). The…

Inclusion complex formation of diferrocenyldimethylsilane with b-cyclodextrin. Abstract An inclusion compound comprising β-cyclodextrin (β-CD) and diferrocenyldimethylsilane, Fc–SiMe2–Fc [Fc = (η5-C5H5)Fe(η5-C5H4)], has been prepared and characterized in the solid state by powder X-ray diffraction (XRD), thermogravimetric analysis (TGA) and magic angle spinning (MAS) NMR spectroscopy (13C, 29Si). Elemental analysis indicated that the host:guest molar ratio in…

Inclusion complexation of dimeric and trimeric oligo(ferrocenyldimethylsilanes) with gamma-cyclodextrin. Abstract The oligo(ferrocenyldimethylsilanes) FcSiMe2Fc and FcSiMe2[(η5-C5H4)Fe(η5-C5H4SiMe2)]Fc [Fc = (η5-C5H5)Fe(η5-C5H4)] were encapsulated in γ-cyclodextrin (CD) to give crystalline inclusion compounds with 2:1 and 3:1 (host-to-guest) stoichiometries, respectively. A complex between γ-CD and ferrocene was also prepared for comparison. The formation of true inclusion complexes was confirmed in…

Emission quantum yield of a europium(III) tris-b-diketonate complex bearing a 1,4-diaza-1,3-butadiene: Comparison with Theoretical Prediction. Abstract The Eu(NTA)3 · p-tolyl-DAB complex (DAB = 1,4-diaza-1,3-butadienes of the type RNdouble bondCHCHdouble bondNR, R = p-tolyl) is the clearest example reported in the literature until now that provides the experimental validation of the theoretical predictions recently developed for…