Nitrogen-14 quadrupole double resonance in some substituted hydroxamic acids

…, X Yu, Z Feng, MMI Haq, MMP Khurshid…

Index: Ruiqin, Wang; Xiaolan, Yu; Zhenye, Feng; Haq, Mian M. I.; Khurshid, Muhammed M. P.; et al. Journal of the American Chemical Society, 1989 , vol. 111, # 1 p. 114 - 120

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Citation Number: 11

Abstract

Abstract: I4N quadrupole coupling constants and asymmetry parameters have been measured in a number of hydroxamic acids by double-resonance field-cycling techniques based on either irradiation in zero magnetic field or cross relaxation. The compounds all display high asymmetry parameters. Those in which this quantity is greater than 0.9 show remarkable line shapes for the two lower I4N frequencies (uy, u,) in their irradiation ...