Table 1.

Hyperfine tensors of the two hydrogen nuclei as obtained from the fit of the ENDOR frequencies using Eq. (1)

	A iso/h	A x′x′/h	A y′y′/h	A z′z′/h		x′	y′	z′
H1	22.6 (0.3)	−2.2 (0.6)	−1.3 (0.6)	3.6 (0.6)	x	0.955	−0.272	−0.114
					y	0.285	0.752	0.594
					z	−0.080	−0.600	0.796
H2	18.8 (0.4)	−4.4 (0.8)	0.25 (0.8)	4.15 (0.8)	x	0.805	0.504	0.314
					y	0.316	−0.811	0.492
					z	−0.503	0.297	0.812

The hyperfine values are expressed in MHz. The tensors are decomposed in their isotropic and anisotropic contribution. The values in brackets represent the errors in the tensor elements. The direction cosines represent the directions of the principal axes systems of the proton hyperfine tensors (x′, y′, z′) in the principal axes system (x, y, z) of the g-tensor. We have taken A _iso positive