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. Author manuscript; available in PMC: 2011 Aug 22.
Published in final edited form as: J Am Chem Soc. 2007 Aug 18;129(36):11153–11160. doi: 10.1021/ja072750f

Table 4.

Bond lengths Ln-O in lanthanide complexes with TREN-1,2-HOIQO (1).

f electrons (Ln3+) dLn-O3 (σ) [Å] dLn-O6 (σ) [Å] dLn-O9 (σ) [Å] dLn-O2 (σ) [Å] dLn-O5 (σ) [Å] dLn-O8 (σ) [Å] dLn-O10 (σ) [Å] dLn-O7 (σ) [Å] ΣdLn-O (σ) [Å]
0 (La) 2.482(4) 2.463(4) 2.479(4) 2.447(4) 2.443(5) 2.473(4) 2.581(4) 2.516(4) 19.884(34)
1 (Ce)[a] 2.469(4) 2.445(4) 2.450(4) 2.432(4) 2.426(4) 2.445(4) 2.573(4) 2.478(4) 19.718(32)
2 (Pr) 2.452(4) 2.427(4) 2.428(4) 2.407(4) 2.405(4) 2.437(3) 2.556(4) 2.473(4) 19.585(31)
3 (Nd) 2.434(4) 2.397(4) 2.415(4) 2.395(4) 2.394(4) 2.418(4) 2.536(4) 2.461(4) 19.450(32)
4 (Pm) - - - - - - - - -
5 (Sm) 2.396(4) 2.381(4) 2.374(4) 2.377(4) 2.377(4) 2.396(4) 2.518(4) 2.434(4) 19.253(32)
6 (Eu) 2.384(5) 2.368(5) 2.356(5) 2.361(5) 2.367(5) 2.386(5) 2.501(5) 2.420(5) 19.143(40)
7 (Gd) 2.373(5) 2.357(5) 2.349(5) 2.352(4) 2.343(5) 2.376(4) 2.491(5) 2.403(5) 19.044(38)
8 (Tb) 2.356(4) 2.338(4) 2.333(4) 2.336(4) 2.332(4) 2.361(4) 2.462(4) 2.381(4) 18.899(32)
9 (Dy) 2.340(4) 2.335(4) 2.322(4) 2.329(4) 2.327(4) 2.355(4) 2.460(4) 2.375(4) 18.843(32)
10 (Ho) 2.327(5) 2.318(5) 2.313(5) 2.312(5) 2.311(5) 2.333(5) 2.456(5) 2.353(5) 18.723(40)
11 (Er) 2.314(4) 2.309(5) 2.307(4) 2.307(4) 2.313(4) 2.330(4) 2.442(5) 2.353(4) 18.675(34)
12 (Tm) 2.308(4) 2.300(4) 2.294(4) 2.297(4) 2.304(4) 2.324(4) 2.424(4) 2.338(4) 18.589(32)
13 (Yb) 2.277(6) 2.282(6) 2.265(6) 2.300(6) 2.286(6) 2.301(6) 2.437(6) 2.333(6) 18.481(48)
14 (Lu) 2.288(3) 2.292(3) 2.282(3) 2.294(3) 2.287(3) 2.320(3) 2.418(3) 2.329(3) 18.510(24)

dLa / dLu 1.085 1.075 1.086 1.067 1.068 1.066 1.067 1.080 1.074
[a]

Ref. 9.