. 2016 Oct 6;6:34765. doi: 10.1038/srep34765

Table 1. NMR Parameters Derived from ¹¹B NMR Results for Various Boron Species in B-TiO_2−x.

Site	δ_iso (ppm)	QCC^b/PQ^a (MHz)	η	δ_MAS (ppm) F₂	δ_MAS (ppm) F₁	Content %
B₁	2.6	0.46^a	—	2.4	2.9	14.1
B₂	4.0	0.29^a	—	3.8	4.0	14.6
B₃	7.9	0.71^a	—	6.8	8.0	8.5
B₄	16.3	2.02^a	—	10.8	19.5	49.8
B₅	16.3	2.23^b	0.30	9.0	20.5	13.0

^aDerived from eq. S2.

^bExtracted by spectral fitting using the Dmfit program.

Table 1. NMR Parameters Derived from 11B NMR Results for Various Boron Species in B-TiO2−x.