Journal Title
Title of Journal: J Incl Phenom Macrocycl Chem
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Abbravation: Journal of Inclusion Phenomena and Macrocyclic Chemistry
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Publisher
Springer Netherlands
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Authors: F Castiglione V Crupi D Majolino A Mele W Panzeri B Rossi F Trotta V Venuti
Publish Date: 2012/03/04
Volume: 75, Issue: 3-4, Pages: 247-254
Abstract
Cyclodextrin nanosponges CDNS are crosslinked polymers with remarkable inclusion/release properties CDNS show swelling capability and a hydrophilicity/hydrophobicity balance that can be dramatically modified by the type and quantity of crosslinking agents Here we focus our attention on samples of βcyclodextrin nanosponges βCDNS obtained by reacting βcyclodextrin βCD with the crosslinking agent carbonyldiimidazole at different βCDcrosslinking agent molar ratio The vibrational properties of CDNS thus synthesized have been investigated by Fourier transform infrared spectroscopy in attenuated total reflectance geometry and Raman spectroscopy in the dry state at room temperature The quantitative analysis of the O–H stretching region 3000–3800 cm−1 allowed us to obtain structural information on the role played by primary and secondary OH groups in the hydrogen bond network of the polymer Also the contribution of interstitial and intracavity crystallization water molecules is reported Solidstate NMR spectroscopy is used to study the molecular mobility of the polymer by measuring the 1H spin–lattice relaxation time in the rotating frame T1ρ The T1ρ values obtained for the polymer βCDNS are compared with free βCD The observed relaxation parameters point out that the ester formation occurs mainly at the primary OH groups of CDs also supporting the interpretation of vibrational spectra
Keywords:
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Other Papers In This Journal:
- Cytosine: para -sulphonato-calix[4]arene assemblies: in solution, in the solid-state and on the surface of hybrid silver nanoparticles
- Thermodynamic stability of C 3 H 8 hydrate of cubic structure IV using lattice dynamics
- β-Cyclodextrin/protein conjugates as a innovative drug systems: synthesis and MS investigation
- Pre-formulation of an oral cyclosporine free of surfactant
- Improved aqueous Cannizzaro reaction in presence of cyclodextrin
- The solid-state structures of the ethanol solvated complexes of para -sulphonato-calix[4]arene with magnesium and calcium ions
- Design and evaluation of folate-appended methyl-β-cyclodextrin as a new antitumor agent
- 8-Hydroxyquinoline Based Multipodal Systems: Effect of Spatial Placement of 8-Hydroxyquinoline on Metal Ion Recognition
- Thiacalixarenes: emergent supramolecules in crystal engineering and molecular recognition
- Synthesis and characterization of new organocobaloxime derivatives with asymmetric dioxime ligands
- Encapsulation and Release Characteristics of Carbon Dioxide in α-Cyclodextrin
- Molecular dynamics simulation and quantum chemical studies on the investigation of aluminum nitride nanotube as phosgene gas sensor
- Synthesis, structure and property of three divalent metal complexes of the piperidinoacetyl-containing calix[4]arene
- In vitro evaluation of the cytotoxicity of a folate-modified β-cyclodextrin as a new anti-cancer drug delivery system
- Sorption onto insoluble β-cyclodextrin polymer for 2,4-dinitrophenol
- Glycation of human serum albumin affects its binding affinity towards (−)-epigallocatechin gallate
- Organotellurium-bridged cyclodextrin dimers as artificial glutathione peroxidase models
- Interactions of cyclodextrins with aromatic amino acids: a basis for protein interactions
- Naphthyridine amide–urea conjugate: a case toward selective fluorometric sensing of N -acetyl proline carboxylate
- A novel switch-on fluorescent receptor for bromide based on an amide group
- Thermodynamics of ZrO 2+ cation complexation with dibenzo-18-crown-6 in mixed non-aqueous solvents
- A computational study of hydrogen cyanide interaction with the pristine and B, Ga, BGa-doped of (8, 0) zigzag AlPNTs
- Selective Pseudo-Rotaxane Type Complex Formation of Zinc(II) ( t -butylatedtetraphenyl) porphyrin-Viologen Linked Compounds with tri- O -methyl-β-Cyclodextrin
- Controlled release of antifungal volatiles of thyme essential oil from β-cyclodextrin capsules
- Synthesis, crystal structure and spectroscopic studies of copper(II) complex of C -meso-1,5,8,12-tetramethyl-1,4,8,11-tetraazacyclotetradecane
- Sorption of azo dyes from aqueous solutions by tetradodecyloxybenzylcalix[4]resorcinarene derivatives
- Preparation and characterization of phospholipid complexes of naringenin for effective drug delivery
- Thermodynamics of cesium complexes formation with 18-crown-6 in ionic liquids
- Determination of the ionization constants of natural cyclodextrins by high-resolution 1 H-NMR and photon correlation spectroscopy
- Monosodium salt of p-tert -butylcalix[4]arene in the reactions with electrophilic reagents. Synthesis and structure of monofunctionalized calix[4]arenes
- Paramagnetic properties and molecular structure of coordination saturated inclusive lanthanide complexes with 18-crown-6 using NMR
- Inclusion complex formation of α- and β-cyclodextrins with aminobenzoic acids in aqueous solution studied by 1 H NMR
- Preparation of a cyclodextrin dimer linked with a bis(picolinyl)cystine moiety and its intra- and intermolecular inclusion behavior
- Machines in art and chemistry
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