Dipolar and Nonpolar Altitudinal Molecular Rotors Mounted on an Au(111) Surface

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Dipolar and nonpolar altitudinal molecular rotors mounted on an Au(111) surface.

We describe the preparation of a compound whose molecules consist of two metal sandwich stands carrying tentacles with affinity to metal surfaces and holding an axle that carries a dipolar or a nonpolar rotator. The dipolar rotor exists as three pairs of enantiomers, rapidly interconverting at room temperature. When mounted on a gold surface, each molecule represents a chiral altitudinal rotor,...

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Surface Mounted Molecular Dipolar Rotors and Rotor Arrays

Rotor Synthesis and Surface Mounting Considerable effort has gone into the synthesis of rotors and their mounting on surfaces. In addition to the commercially available analogs of rotors 1 4 lacking the triple bond [such as ClCH2-Si(OEt)3], and the easily synthesized molecule 2, all of which have small dipole moments but a small footprint, permitting high surface densities, we have worked on st...

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Surface-mounted altitudinal molecular rotors in alternating electric field: single-molecule parametric oscillator molecular dynamics.

Molecular dynamics simulations of the response to oscillating electric field elicited from an altitudinal dipolar molecular rotor mounted on the Au(111) surface and previously studied experimentally in static fields show unidirectional rotation in one of the three pairs of conformational enantiomers. The simulations are based on the universal force field and take into account electronic frictio...

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Molecular dynamics of a grid-mounted molecular dipolar rotor in a rotating electric field.

Classical molecular dynamics is applied to the rotation of a dipolar molecular rotor mounted on a square grid and driven by rotating electric field E(nu) at T approximately 150 K. The rotor is a complex of Re with two substituted o-phenanthrolines, one positively and one negatively charged, attached to an axial position of Rh(2)(4+) in a [2]staffanedicarboxylate grid through 2-(3-cyanobicyclo[1...

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ژورنال

عنوان ژورنال: Journal of the American Chemical Society

سال: 2004

ISSN: 0002-7863,1520-5126

DOI: 10.1021/ja039482f