6533b85cfe1ef96bd12bd59d
RESEARCH PRODUCT
Magnetic field-induced alignment of molecular rotor-shaped cyclophanes
Inmaculada García CuestaPaolo LazzerettiStefano PelloniAlfredo Sánchez De Merássubject
ChemistryRotor-shaped cyclophanes; molecular engines; magnetic field-controlled molecular alignment; dipolar rotors in circularly polarized electric field; ab-initio calculations; solvent effectsMagnetostaticsMolecular physicsSymmetry (physics)Magnetic fieldDipolechemistry.chemical_compoundMagnetic anisotropyNuclear magnetic resonanceElectric fieldPerpendicularGeneral Materials SciencePhysical and Theoretical ChemistryCyclophanedescription
Molecular pinwheels consisting of dipolar substituted cyclophanes in solution can function as free microscopic rotors in the presence of a homogeneous static magnetic field B and a circularly polarized electric field E rotating on a plane containing B. Owing to the high magnetic anisotropy of [26](1,2,3,4,5,6)cyclophane and [36](1,2,3,4,5,6)cyclophane biased by strong ring currents, ∼1 in 105 molecules are expected to align with the C6 symmetry axis perpendicular to a magnetic field of 21 T. The magnetic-field-controlled alignment of rotor-shaped cyclophanes is insignificantly affected by nonpolar solvents, for example, toluene.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-04-21 |