Table 6. Solution-state studies of 2a, 2b and 2h by ¹H DOSY NMR using an ECC^DSE in D₈-THF and an ICC in 2-MeTHF to estimate their constitution and solvation in these donor solvents ^a .

D 8 -THF	MWdet [g mol–1]	V MWdiff [%]	IV MWdiff [%]	III MWdiff [%]
LiN(Me)Ph (2a)	335	–2	–23	54
LiN(H)Ph (2b)	331	–5	–27	47
LiNPh2 (2h)	393	<1	–19	87

2-MeTHF	MWdet [g mol–1]	MWdiff [%]	MWdiff [%]	MWdiff [%]
LiN(Me)Ph (2a)	363	2	–21	57
LiN(H)Ph (2b)	393	–9	–31	38
LiNPh2 (2h)	451	–4	–23	54

^aD₈-THF: molecular weights derived from ¹H DOSY-ECC-MW determinations at 15 nM concentrations in 0.5 mL D₈-THF against tetramethylsilane (TMS) as a reference standard.27a 2-MeTHF: molecular weights derived from ¹H DOSY-ICC-MW determinations at 0.2 M concentrations in 0.5 mL 2-MeTHF with 1,2,3,4-tetraphenylnaphthalene (TPhN), 1-phenylnaphthalene (1-PhN) and TMS as internal reference standards.29 See the ESI for full details.