Weak coupling between magnetically inequivalent spins: The deceptively simple, complicated spectrum of a 13C-labeled trimethylated amine

Ulric B. le Paige,Bauke Smits,Peter 't Hart,Fons Lefeber,Nathaniel I. Martin,Hugo van Ingen

Journal of Magnetic Resonance（2017）

引用 4|浏览10

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摘要

•Magnetically inequivalent nuclei can be weakly coupled.•Experimental demonstration on a [A3X]3M spin system.•4JHH between geminal methyl groups is estimated to be 0.43Hz.•Spin-state selective homo-decoupling transforms the spin system to equivalence.

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关键词

Magnetic equivalence,Sub-spectral analysis,Composite particle analysis,Trimethylated amine,J-coupling,4JHH

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