The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2,3-Dibromopropionic acid(SMILESS: O=C(O)C(Br)CBr,cas:600-05-5) is researched.Synthetic Route of C10H7F2N3O. The article 《Transverse magnetization transfer under planar mixing conditions in spin systems consisting of three coupled spins 1/2》 in relation to this compound, is published in Journal of Magnetic Resonance. Let’s take a look at the latest research on this compound (cas:600-05-5).
Polarization transfer under planar mixing conditions is a widely used tool in modern NMR experiments In the case of 2 coupled spins 1/2 or a chain of 3 or more spins 1/2 with only nearest neighbor couplings, it is only possible to transfer a single magnetization component (longitudinal magnetization in the principal axis system of the planar coupling tensors). However, if all couplings in a 3-spin system are non-zero, it turns out that all magnetization components can be efficiently transferred even under strictly planar mixing conditions. A detailed theor. anal. is presented based on anal. transverse coherence transfer functions and on the underlying commutator algebra. In addition, transverse magnetization transfer is demonstrated exptl. The results show that in highly coupled spin systems, as for example in the case of partially aligned samples with many residual dipolar couplings, special care has to be taken to avoid phase distortions if planar mixing steps are used.
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Reference:
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