buckminsterfullerene - 2025 PACE NSC

Question

An ionized state of this molecule is the only confirmed carrier of diffuse interstellar bands. In 1999, Markus Arndt et al. showed that this molecule exhibits wave-particle duality. This molecule's (20[1])6-6 ("six six") bonds (20[1])resemble (20[1])single bonds, while its 6-5 ("six five") bonds (20[1])resemble double bonds. (0[1])This (0[1])black solid forms a purple solution in aromatic (20[2])solvents. (20[1]0[2])Curl, Kroto, (0[1])and Smalley discovered (20[1])this molecule (20[2])using laser evaporation of (*) graphite. (10[2]0[5])This (10[1])molecule (0[4])names a class of allotropes that includes nanotubes. (10[1]0[1])This molecule's (0[1])pentagonal and hexagonal rings combine to form (10[1])a (10[1])truncated icosahedron, (10[1])leading it to be named after the architect (10[1])who popularized (10[1])the (10[1])geodesic (10[1])dome. For 10 points, name this soccer-ball-shaped allotrope of carbon. (10[3])■END■ (10[10]0[1])

ANSWER: buckminsterfullerene [accept buckyballs; accept endohedral buckminsterfullerene; accept C60; prompt on fullerene; prompt on endohedral fullerene]

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Buzzes

Player	Team	Opponent	Buzz Position	Value
Vidur Kothur	Lindbergh	Lambert A	29	20
Charan Pratapeneni	Classen SAS	Downingtown STEM	31	20
Anvith Vanukuri	Fremd	Walter Payton A	32	20
Ryan Smith	Downingtown STEM	Chattahoochee A	38	20
Maxwell Swann	Centennial A	Lambert B	41	0
Aaryan Sumesh	Thomas Jefferson A	Eastchester	42	0
Gugan Thuduppathy	Montgomery Blair A	Adlai E. Stevenson A	50	20
Max Chen	Strake Jesuit A	Park Tudor	50	20
Kevin Adler	Northmont	Belmont	51	0
Draco Qiao	Carmel A	Uni School of Nashville B	51	0
b	Team 2	Team 1	51	20
Hrishi Bhooma	Thomas Jefferson D	Homewood-Flossmoor	53	0
Samy El-Zahabi	Chattahoochee B	Winston Churchill B	56	20
Andrew Peuster	Audrain County AT	Grosse Pointe South	58	20
Karthik Jayaram	Walker	Carl Sandburg	58	20
Aadi Pudasaini	Lexington	Adlai E. Stevenson B	63	10
Snehan Saroch	Russell	Herron	63	0
Deepak Viswalingam	Westwood	Innovation Academy A	63	0
Tristan Andre	North Quincy	Okemos	63	0
Andrew Zhao	Richard Montgomery	Hunter A	63	0
Jonathan Ouyang	Uni of Illinois Laboratory	Wayzata	63	10
Rajiv Pujara	Fairfield County AT	White Pigeon	63	0
Wyatt Johnson	Solon	Lee's Summit	64	10
Rochan Saireddy	Lambert B	Centennial A	65	0
Harini Ramakrishnan	Saratoga	Centennial B	65	0
Dominic Salazar	Irvington	Yukon B	65	0
Beckett Pursey	Edina	West Point	65	0
Neel Rege	Great Valley	Georgetown Day	73	10
Yongle Xin	Montgomery Blair B	Thomas Jefferson B	73	0
Reed Karosich	Coronado	Hunter B	75	0
Kaiden Lee	Northview	Hinsdale Central A	82	10
Kaitlyn Leonard	Barrington	Classen SAS	83	10
Nathan Liang	Thomas Jefferson C	Detroit Catholic Central C	85	10
Felix Sacks	Lincoln-Way East A	Walter Payton B	93	10
Darren Kellis	Milton	Uni School of Nashville A	95	10
Samin Asif	Seven Lakes	Innovation Academy B	96	10
Christopher Stewart	Yukon A	Virginia	97	10
Andrew Gao	Belmont	Northmont	107	10
Nico Bobis	Glenbrook South	Parkway West	107	10
Everett Van Til	Homewood-Flossmoor	Thomas Jefferson D	107	10
Evan Giles	Uni School of Nashville B	Carmel A	108	10
Ryan Chang	Centennial B	Saratoga	108	10
Saathvik Koneru	Detroit Catholic Central B	Page	108	10
Henry Nolan	Herron	Russell	108	0
Camille Pimentel	Hunter B	Coronado	108	10
Shaun Iyer	Innovation Academy A	Westwood	108	10
Aaron Liu	Okemos	North Quincy	108	10
Theodore Kronby	Hunter A	Richard Montgomery	108	10
Maximilian Lin	Eastchester	Thomas Jefferson A	108	10
Ray Zhao	Thomas Jefferson B	Montgomery Blair B	108	10
Brodie Henry	West Point	Edina	108	10

Summary

Tournament	Edition	Exact Match?	TUH	Conv. %	Power %	Neg %	Average Buzz
2025 PACE NSC	06/07/2025	Y	38	89%	26%	0%	80.82