fullerenes - 2025 ACF Winter

Question

The Bingel reaction attaches short chains to these molecules. For 10 points each:

[10m] Name these large molecules discovered by Curl, Kroto, and Smalley whose geometry is described by Schlegel diagrams. Endohedral examples of these molecules form host–guest complexes.

ANSWER: fullerenes [accept endohedral fullerenes]

[10e] Fullerenes are allotropes of this element that can also form namesake nanotubes. Other allotropes of this element include graphite and diamond.

ANSWER: carbon [or C]

[10h] Potential qubits formed from nitrogen endofullerenes can be probed using a pulsed subtype of this technique called DEER. This technique uses microwave radiation and can employ SDSL.

ANSWER: EPR spectroscopy [or or electron paramagnetic resonance; accept ESR or electron spin resonance]

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Summary


Canada	Main	Y	6	11.67	100%	17%	0%
Florida	Main	Y	13	13.85	100%	39%	0%
Midwest	Main	Y	8	10.00	100%	0%	0%
Northeast	Main	Y	5	10.00	100%	0%	0%
Pacific Northwest	Main	Y	10	11.00	100%	10%	0%
South Central	Main	Y	5	12.00	100%	20%	0%
Upper Mid-Atlantic	Main	Y	8	10.00	100%	0%	0%
Upstate NY	Main	Y	8	11.25	100%	13%	0%
2025 ACF Nationals	2025-08-09	Y	3	13.33	100%	33%	0%

Data


UCI	UCLA C	0	10	10
UCLA A	Claremont Pitzer	10	10	20
UCLA B	Claremont Scripps	0	10	10
UCLA D	UCSD What Hath God Wrought	0	10	10
UCSB	USC	0	10	10
UCSD Two Running Violet V Forms	UCSD Vices and Virtues	0	10	10
McGill B	Carleton	0	10	10
Toronto B	McGill A	10	10	20
Queen's A	McGill C	10	10	20
Guelph B	McMaster B	0	10	10
Toronto C	Ottawa	0	10	10
Queen's B	Western Ontario	10	10	20
Toronto A	Guelph A	10	10	20
Toronto D	McMaster A	0	10	10
Waterloo	Toronto E	0	10	10
Toronto Metropolitan	Toronto G	10	10	20
Toronto I	McMaster C	0	10	10
Toronto F	Toronto J	0	10	10
Toronto H	Toronto K	0	10	10
Liberty A	North Carolina B	0	10	10
James Madison	Virginia B	0	10	10
Clemson A	Liberty C	0	10	10
North Carolina A	NC State	0	10	10
South Carolina B	Clemson B	0	10	10
Virginia Tech B	Tusculum	0	10	10
North Carolina C	Virginia Tech A	0	10	10
Chicago A	Kentucky	10	10	20
Chicago B	Notre Dame B	0	10	10
Chicago D	Illinois C	0	10	10
Illinois A	Michigan B	0	10	10
Indiana B	Notre Dame C	0	10	10
Notre Dame A	Louisville A	0	10	10
Louisville B	Chicago C	0	10	10
Purdue C	Michigan C	0	10	10
Michigan D	Illinois B	0	10	10
Purdue A	Notre Dame D	0	10	10
Rowan A	Columbia A	0	10	10
Columbia B	Lehigh A	0	10	10
Columbia C	Vassar A	0	10	10
Rutgers B	Princeton A	0	10	10
Rutgers C	Lehigh B	0	10	10
Iowa State	Macalester A	0	10	10
Minnesota A	Macalester B	10	10	20
St. Thomas	Minnesota B	0	10	10
Carleton	Nebraska	0	10	10
Minnesota C	Wisconsin	0	10	10
Arizona State A	UCO	0	10	10
Tulsa	Arizona State B	0	10	10
Ohio	Iowa	0	10	10
McGill D	Northwestern B	0	10	10
Texas B	Northwestern A	0	10	10
Rose State	UTD A	0	10	10
Texas A	Alberta B	0	10	10
Northwestern C	UTD B	0	10	10
Alabama B	Auburn B	0	10	10
Georgia Tech A	Auburn A	0	10	10
Bruin A	Georgia Tech C	10	10	20
Georgia Tech B	Georgia Tech D	0	10	10
Huntsville A	Alabama A	0	10	10
Huntsville B	Mississippi State A	0	10	10
UAB A	Sewanee A	0	10	10
Vanderbilt A	Vanderbilt B	0	10	10
Oxford B	Cambridge D	10	10	20
Sheffield A	Southampton B	0	10	10
Warwick A	Durham A	0	10	10
South Carolina A	Liberty B	0	10	10