Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5407315 | Journal of Magnetic Resonance | 2007 | 7 Pages |
Abstract
Variable angle spinning (VAS) experiments can be used to measure long-range dipolar couplings and provide structural information about molecules in oriented media. We present a probe design for this type of experiment using a contactless resonator. In this circuit, RF power is transmitted wirelessly via coaxial capacitive coupling where the coupling efficiency is improved by replacing the ordinary sample coil with a double frequency resonator. Our probe constructed out of this design principle has shown favorable properties at variable angle conditions. Moreover, a switched angle spinning correlation experiment is performed to demonstrate the probe's capability to resolve dipolar couplings in strongly aligned molecules.
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Chemistry
Physical and Theoretical Chemistry
Authors
Chunqi Qian, Alex Pines, Rachel W. Martin,