Hyperfine interactions in methanimine

Abstract

A high-resolution study of hyperfine splitting in the microwave spectrum of methanimine has yielded the following values (in MHz) for ¹⁴N hyperfine constants: x_aa- 0.898(8), x_bb - 2.693(8), x_cc 3.591(8), C_a -0.0495(47), C_b - 0*0097(27), C_c -0.0012(24). The localized theory for calculation of the magnetic hyperfine constants appears generally to overestimate C_c by an order of magnitude for molecules structurally similar to methanimine.