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We show that an imbalance between the populations of singlet (S) and triplet (T) states in pairs of magnetically equivalent spins can be generated by dissolution dynamic nudear polarization: In partly deuterated ethanol ((CD3CH2OD)-C-13), this T/S imbalance can be transferred by cross-relaxation to observable, enhanced signals of protons and coupled C-13.
David Lyndon Emsley, Pierrick Berruyer, Saumya Badoni
Rolf Gruetter, Andrea Capozzi, Jean-Noël Hyacinthe, Thanh Phong Kevin Lê, Emma Linnea Wiström