Selected distances (Å) for compounds 2, 4 and 5.
| [Yb(bta)3(me-phen)] (2) | [Yb(bta)3(pyz-phen)] (4) | [Er(tta)3(pyz-phen)] (5) | |||
|---|---|---|---|---|---|
| Yb1–N1A | 2.491(5)a | Yb1–N1A | 2.512(7) | Er1–N1A | 2.543(4) |
| Yb1–N2A | 2.524(5) | Yb1–N2A | 2.499(7) | Er1–N2A | 2.518(4) |
| Yb1–O1B | 2.319(4) | Yb1–O1B | 2.277(5) | Er1–O1B | 2.311(3) |
| Yb1–O2B | 2.283(4) | Yb1–O2B | 2.264(5) | Er1–O2B | 2.306(3) |
| Yb1–O1C | 2.282(4) | Yb1–O1C | 2.278(4) | Er1–O1C | 2.320(3) |
| Yb1–O2C | 2.271(4) | Yb1–O2C | 2.274(5) | Er1–O2C | 2.270(3) |
| Yb1–O1D | 2.286(4) | Yb1–O1D | 2.288(5) | Er1–O1D | 2.290(3) |
| Yb1–O2D | 2.263(4) | Yb1–O2D | 2.263(4) | Er1–O2D | 2.311(3) |
a
The number in parenthesis is the standard deviation in the last digit.