Definition of "quadrupolar" [quadrupolar]

• Of or pertaining to a quadrupole (adjective)

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• "What I meant was that if the experiments had given an inverse exponent close to 2.5 for example, perhaps some superposition of scalar and many weak quadrupolar fields could have been used."
• "Our main research topics were concerned with NMR studies of conformational rate processes, nitrogen inversion, quadrupolar relaxation, molecular motions and liquid structure, as well as ab initio quantum chemical computations of inversion barriers, of electronic structures and later on, of stereoelectronic effects."
• "NMR methods for spins-1/2 and half-integer quadrupolar nuclei."