Question
Multi·dentate phosphine ligands are often notated with this Greek letter followed by their number of coordination sites. For 10 points each:
[10h] Name this Greek letter used to denote the denticity of ligands, or how many non-contiguous binding sites they have. Acetate ligands can be described as “[this letter]-2.”
ANSWER: kappa
[10m] While denticity describes non-contiguous binding sites, this other quantity denoted with the Greek letter eta describes the number of contiguous binding sites. Cyclo·penta·diene ligands have a value of five for this quantity.
ANSWER: hapticity
[10e] Two eta-five cyclo·penta·diene ligands are bound to an iron(II) (“iron-two”) center in this classic sandwich compound, the first-discovered metallocene.
ANSWER: ferrocene [accept Fc]
<JZ, Chemistry>
Summary
| 2023 ARCADIA at Duke | Emory, Duke, Yale | Y | 4 | 7.50 | 50% | 0% | 25% |
| 2023 ARCADIA at Emory | Emory, Duke, Yale | Y | 4 | 7.50 | 25% | 25% | 25% |
| 2023 ARCADIA at Imperial | Imperial | Y | 5 | 6.00 | 40% | 20% | 0% |
| 2023 ARCADIA at Maryland | Maryland, Online | Y | 3 | 6.67 | 33% | 33% | 0% |
| 2023 ARCADIA at Ohio State | Ohio State, Texas | Y | 3 | 3.33 | 33% | 0% | 0% |
| 2023 ARCADIA Online | Maryland, Online | Y | 3 | 10.00 | 67% | 33% | 0% |
| 2023 ARCADIA at Texas | Ohio State, Texas | Y | 3 | 13.33 | 67% | 67% | 0% |
Data
| George Washington A | Maryland A | 0 | 0 | 0 | 0 |
| Johns Hopkins | Georgetown | 0 | 10 | 10 | 20 |
| Maryland B | George Washington B | 0 | 0 | 0 | 0 |