fullerenes - 2025 Penn Bowl

Question

Pi-stacking enables the binding of these compounds to corannulene-based molecular tweezers called “catchers” of them. For 10 points each:

[10m] Name these compounds that can form guest-host complexes with inert gases represented with an @ symbol in endohedral notation.

ANSWER: fullerenes [or buckminsterfullerenes; accept buckyballs or buckycatchers; prompt on carbon nanotubes]

[10h] Fullerenes can be used to create or “decorate” molecules with this structure consisting of two mechanically interlocked macrocycles. Molecules with this architecture can be assembled with a ring-closing “statistical approach” or a “template-directed” approach that relies on metal ion coordination.

ANSWER: catenanes

[10e] Catenanes can be used as molecular switches that change color after undergoing one of these reactions that involves the transfer of electrons.

ANSWER: redox reactions [accept reductions or oxidations]

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Summary


2025 Penn Bowl - BU	11/01/25	Y	4	15.00	100%	50%	0%
2025 Penn Bowl - CWRU	11/01/25	Y	3	10.00	100%	0%	0%
2025 Penn Bowl - Mainsite (UPenn)	11/01/25	Y	6	13.33	100%	33%	0%
2025 Penn Bowl - Murray State	11/08/25	Y	2	10.00	100%	0%	0%
2025 Penn Bowl - Northwestern	10/25/25	Y	4	12.50	100%	25%	0%
2025 Penn Bowl - Online	11/08/25	Y	2	10.00	100%	0%	0%
2025 Penn Bowl - Ottawa	11/01/25	Y	7	11.43	86%	14%	14%
2025 Penn Bowl - Stanford	10/25/25	Y	3	16.67	100%	67%	0%
2025 Penn Bowl - UK	11/01/25	Y	9	14.44	100%	33%	11%
2025 Penn Bowl - UNC	11/01/25	Y	3	10.00	100%	0%	0%
2025 Penn Bowl - WashU	11/01/25	Y	2	10.00	100%	0%	0%

Data


Brown	MIT A	10	0	10	20
Harvard	I've been running into you in my lead plumbocene what could have benzene	10	0	10	20
Pittsburgh	Michigan B	0	0	10	10
Ohio State A	Michigan A	0	0	10	10
CWRU	Ohio State B	0	0	10	10
Mount Sinai	Columbia A	0	0	10	10
JHU A	John Jay	10	0	10	20
Maryland A	JHU B	0	0	10	10
Swarthmore	Maryland B	0	0	10	10
NYU B	Maryland C	0	0	10	10
NYU A	Columbia B	10	0	10	20
Central Oklahoma	Texas B	0	0	10	10
Texas A	Oklahoma	0	0	10	10
Indiana	Illinois	10	0	10	20
UChicago B	Northwestern A	0	0	10	10
UChicago A	Northwestern B	0	0	10	10
Purdue A	Purdue B	0	0	10	10
abg academy	New Young Whigs of America	0	0	10	10
Wake Up Paddington A Washington Mystery	rusty shackleford	0	0	10	10
MIT B	Yale	0	0	10	10
Brandeis	RIT	0	0	10	10
Toronto G	Carleton A	10	10	10	30
Ottawa 67s	Aweille Kevin Fan osti continue comme ça	0	0	10	10
Guelph perfomative male competition	Toronto Operation PBSuccess	0	0	0	0
McGill B	Waterloo you are crooked	0	0	10	10
Toronto Murder on the Rider Express	McGill Fartlets	0	0	10	10
Toronto E	Queen's is monitoring the situation	0	0	10	10
Berkeley B	Berkeley A	0	0	10	10
Berkeley C	Free Win	10	0	10	20
Stanford A	In Search of Lost Clues	10	0	10	20
#OpenToBuzz	Toronto Sunshine Bubbles	0	0	10	10
question mark	Alas poor Warwick, I knew him Edinburgh	0	0	10	10
To buzz is to be perceived	Chimp Brisket	0	0	10	10
Galactic Ombudsmen	1. Wawa 2. Blank Street 151. Black Sheep at Kings Cross rail	0	0	10	10
Penn and the Art of Tossup-Bonus cycle Maintenance	Knorr Stock Clue	0	0	10	10
Hail to the Sheaf	Paul Quifford, or, It Was a Dark and Stormy Tournament	10	10	10	30
Quiztian Bale in Ratman Begins	Of Mice and Penn	0	0	10	10
The Bit and the Penndulum	Coughing Baby	10	0	10	20
Burnaburiash's Lapis Lazuli	Washed Scrubs	10	0	10	20
Bristold	why is it called a score clue if nobody scores points on it	0	0	10	10
VT B	VT A	0	0	10	10
Wise Duke	Planck Sinatra	0	0	10	10
UNC A	UNC B	0	0	10	10
Truman State	VJ Edgecombe School of Interior Design - Edwardsville	0	0	10	10
WashU Bouba	WashU Kiki	0	0	10	10