kappa - 2023 ARCADIA at Texas

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>

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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


Texas A	HCC	10	10	20
Texas B	TAG Magnet: Taylor's Version	0	10	10
TAMU	Texas C	10	0	10