Castañar Laura, Pérez-Trujillo Míriam, Nolis Pau, Monteagudo Eva, Virgili Albert, Parella Teodor
Servei de Ressonància Magnètica Nuclear and Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra (Spain), Tel: (+34) 935812291.
Chemphyschem. 2014 Apr 4;15(5):854-7. doi: 10.1002/cphc.201301130. Epub 2014 Feb 20.
A frequency-selective 1D (1) H nuclear magnetic resonance (NMR) experiment for the fast and sensitive determination of chemical-shift differences between overlapped resonances is proposed. The resulting fully homodecoupled (1) H NMR resonances appear as resolved 1D singlets without their typical J(HH) coupling constant multiplet structures. The high signal dispersion that is achieved is then exploited in enantiodiscrimination studies by using chiral solvating agents.
提出了一种频率选择性一维（1）H核磁共振（NMR）实验，用于快速、灵敏地测定重叠共振之间的化学位移差异。所得的完全同核去耦（1）H NMR共振表现为解析后的一维单峰，没有其典型的J（HH）耦合常数多重峰结构。然后，通过使用手性溶剂化剂，将所实现的高信号分散用于对映体鉴别研究。
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