. Author manuscript; available in PMC: 2014 Apr 1.

Published in final edited form as: Inorg Chem. 2013 Mar 21;52(7):4084–4096. doi: 10.1021/ic400227k

Table 3.

Time required to reach 80% of R₁ (t = 0) and values of R₁ (t = 24 h) for Gd complexes

Compound	Time to 80% R₁ [h]	% R₁ (t = 24 h)	% R₁ (t = 24 h) phosphate only
[Gd(DO2A)]	N/A^a	0	0
[Gd(DTPA)]	2.96	45	inert
[Gd(DO3A)]	inert	inert	inert
[Gd(HP-DO3A)]	inert	inert	inert
[Gd(L1)]	< 0.5	0	18
[Gd(L2)]	11.4	64	96
[Gd(L3)]	1.81	11	58
[Gd(L4)]	< 0.5	0	0
[Gd(L5)]	1.04	0	25
[Gd(L6)]	1.30	9	16

Values calculated from biexponential fits of the experimental data.

Value could not be reliably determined due to nonstandard behavior.