Synthesis and Characterization of two Novel Large-pore Crystalline Vanadosilicates. Abstract Two novel large-pore sodium vanadosilicates (Aveiro-Manchester, structure numbers 13 and 14) containing stoichiometric amounts of vanadium (Si/V = 10 and 4, respectively) have been synthesized. Only one other example of a large-pore vanadosilicate (AM-6) is known. AM-13 and AM-14 were characterized by bulk chemical analysis…

Experimental and theoretical studyof the interaction of molybdenocene dichloride (Cp2MoCl2) with β-cyclodextrin Abstract A crystalline 1:1 inclusion complex was isolated from the reaction of β-cyclodextrin (β-CD) with aqueous Cp2MoCl2. The existence of a true inclusion complex in the solid-state was confirmed by a combination of powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), FTIR and Raman…

Evidence of C-H…O hydrogen bonds in liquid 4-ethoxybenzaldehyde from NMR and vibrational spectroscopies. Abstract Raman, FTIR, and NMR (both 13C and 17O) spectroscopies are used in a complementary way in order to study the occurrence of C−H···O intermolecular hydrogen bonds in liquid 4-ethoxybenzaldehyde (4EtOB). Additional information concerning the structure of the possible dimers is obtained…

Interactions of cationic and neutral molybdenum complexes with β-cyclodextrin host molecules Abstract The inclusion compounds formed between β-cyclodextrin (β-CD) and the tetrafluoroborate salts [Cp‘Mo(η4-C6H8)(CO)2][BF4] and the neutral derivatives Cp‘Mo(η3-C6H7)(CO)2 [Cp‘ = Cp (η5-C5H5), Ind (η5-C9H7)] were studied by means of elemental analysis, FTIR spectroscopy, thermogravimetric analysis (TGA), powder X-ray diffraction (XRD), and magic-angle spinning (MAS)…

Selection of substituted benzaldehyde conformers by the cyclodextrin inclusion process: a Raman spectroscopic study Abstract Raman spectra of benzaldehyde (B), 4-Methoxybenzaldehyde (4MeOB), 3-methoxybenzaldehyde (3MeOB), 3-methylbenzaldehyde (3MB) and 3-chlorobenzaldehyde (3CB) included in α-, β- and γ-cyclodextrins (α-, β- and γCD) were recorded. The effects of the inclusion process on the conformational isomerism and on the hydrogen…