Stacks of platinum clusters display trigonal geometry in clusters of this molecule named for Paolo Chini. The UV-vis spectra of reduced cytochrome P450 enzymes bound to this molecule typically display a 450-nanometer Soret peak. The vibrational frequency of a complex containing this molecule measures a ligand’s Tolman electronic parameter. Coordination of iodine and this molecule to iridium forms a complex used to catalyze the synthesis of (*) acetic acid. This molecule, which is iso·electronic to cyanide, is listed furthest to the strong-field side on the spectrochemical series. Compared to another molecule, this heteroatomic molecule displays a 200-fold higher affinity to hemoglobin. For 10 points, name this poisonous, odorless gas formed during incomplete combustion. ■END■
| 2025 Penn Bowl - Stanford | 10/25/25 | Y | 4 | 100% | 50% | 25% | 64.25 |
| 2025 Penn Bowl - Northwestern | 10/25/25 | Y | 4 | 100% | 50% | 0% | 76.75 |
| 2025 Penn Bowl - Mainsite (UPenn) | 11/01/25 | Y | 6 | 83% | 17% | 33% | 86.80 |
| 2025 Penn Bowl - BU | 11/01/25 | Y | 4 | 100% | 25% | 50% | 96.75 |
| 2025 Penn Bowl - CWRU | 11/01/25 | Y | 3 | 100% | 0% | 0% | 97.67 |
| 2025 Penn Bowl - UNC | 11/01/25 | Y | 3 | 100% | 33% | 0% | 85.67 |
| 2025 Penn Bowl - WashU | 11/01/25 | Y | 2 | 100% | 50% | 0% | 63.00 |
| 2025 Penn Bowl - Ottawa | 11/01/25 | Y | 7 | 100% | 14% | 29% | 93.14 |
| 2025 Penn Bowl - UK | 11/01/25 | Y | 9 | 100% | 22% | 22% | 87.44 |
| 2025 Penn Bowl - Online | 11/08/25 | Y | 2 | 100% | 0% | 100% | 111.50 |
| 2025 Penn Bowl - Murray State | 11/08/25 | Y | 2 | 100% | 0% | 50% | 105.00 |
| Player | Team | Opponent | Buzz Position | Value |
|---|---|---|---|---|
| Richard Niu | The best time to buzz was twenty clues ago. The second best time to buzz is now | In Search of Lost Clues | 27 | 15 |
| June Yin | WashU Kiki | WashU Bouba | 27 | 15 |
| Joy An | Harvard | Brown | 33 | -5 |
| Kelvin Ni | NYU B | Maryland B | 33 | -5 |
| Aatreyo Bhattacharyya | abg academy | New Young Whigs of America | 33 | -5 |
| Ava Butler | McGill B | Queen's is monitoring the situation | 45 | -5 |
| Evan Lynch | Washed Scrubs | To buzz is to be perceived | 45 | 15 |
| Rohan Shelke | Berkeley B | Berkeley C | 47 | 15 |
| Keerthana Krishnan | Texas B | Central Oklahoma | 48 | -5 |
| Shahar Schwartz | Free Win | Stanford B | 54 | -5 |
| Ilyas Choukri | VT A | Planck Sinatra | 56 | 15 |
| Sinecio Morales | JHU A | JHU B | 59 | 15 |
| Will Alston | rusty shackleford | Wake Up Paddington A Washington Mystery | 59 | -5 |
| Vivek Sasse | Hail to the Sheaf | Galactic Ombudsmen | 59 | 15 |
| Andrew Wang | Illinois | Purdue A | 59 | 15 |
| Beckett Pursey | Purdue B | Northwestern A | 61 | 15 |
| Jason Zhang | Toronto Operation PBSuccess | Toronto E | 62 | 15 |
| Jonathan Huang | MIT A | Brandeis | 65 | 15 |
| Caleb Ott | Waterloo you are crooked | Aweille Kevin Fan osti continue comme ça | 66 | -5 |
| Swapnil Garg | Berkeley A | Stanford A | 71 | 10 |
| Moses Kitakule | Columbia A | NYU A | 72 | -5 |
| Charlie Ruff | McGill Fartlets | Toronto G | 75 | 10 |
| Ben Russell Jones | Burnaburiash's Lapis Lazuli | Knorr Stock Clue | 77 | -5 |
| Daniel Ma | Mount Sinai | Columbia B | 79 | 10 |
| Henry Jiang | MIT B | I've been running into you in my lead plumbocene what could have benzene | 80 | -5 |
| Delia Cropper | Penn and the Art of Tossup-Bonus cycle Maintenance | Chimp Brisket | 80 | -5 |
| Eugenia Tong | The Bit and the Penndulum | 1. Wawa 2. Blank Street 151. Black Sheep at Kings Cross rail | 81 | 10 |
| Coby Tran | UChicago B | Indiana | 83 | 10 |
| Colin Veevers | Ottawa 67s | Guelph perfomative male competition | 85 | 10 |
| Nathan Long | Quiztian Bale in Ratman Begins | Bristold | 85 | 10 |
| Ben Hellman | Swarthmore | Maryland C | 85 | 10 |
| Pace Klein | CWRU | Michigan A | 87 | 10 |
| Charlie Lowman | Paul Quifford, or, It Was a Dark and Stormy Tournament | Coughing Baby | 95 | 10 |
| Jesse Chusing | #OpenToBuzz | Toronto Murder on the Rider Express | 99 | 10 |
| Rachel Bentham | question mark | why is it called a score clue if nobody scores points on it | 99 | 10 |
| Neal Joshi | VJ Edgecombe School of Interior Design - Edwardsville | Truman State | 99 | 10 |
| Cade Reinberger | RIT | Yale | 99 | 10 |
| Aditya Patnaik | Ohio State A | Pittsburgh | 99 | 10 |
| Jerry Vinokurov | John Jay | Maryland A | 99 | 10 |
| Aditya Sharma | Wise Duke | UNC A | 99 | 10 |
| Danny Fisher | Alas poor Warwick, I knew him Edinburgh | Of Mice and Penn | 100 | 10 |
| Bryce Cruise | Texas A | Oklahoma | 100 | 10 |
| Emily Kadolph | VT B | UNC B | 102 | 10 |
| John Marvin | UChicago A | UChicago C | 104 | 10 |
| Josh Koch | Michigan B | Michigan C | 107 | 10 |
| Kevin Le | Carleton A | Toronto Sunshine Bubbles | 107 | 10 |
| Collin Leck | Central Oklahoma | Texas B | 110 | 10 |
| Walter Zhang | I've been running into you in my lead plumbocene what could have benzene | MIT B | 111 | 10 |
| Deeksha Easwar | Wake Up Paddington A Washington Mystery | rusty shackleford | 111 | 10 |
| Brendan Bethlehem | Knorr Stock Clue | Burnaburiash's Lapis Lazuli | 111 | 10 |
| Mason Yu | Brown | Harvard | 112 | 10 |
| Brendan Bridle | Queen's is monitoring the situation | McGill B | 112 | 10 |
| Danny Han | Stanford B | Free Win | 112 | 10 |
| Justin Keung | Chimp Brisket | Penn and the Art of Tossup-Bonus cycle Maintenance | 112 | 10 |
| Ryan Rosenberg | NYU A | Columbia A | 112 | 10 |
| Gannon Smith | Maryland B | NYU B | 112 | 0 |
| Maude-Sophie Lockman | Aweille Kevin Fan osti continue comme ça | Waterloo you are crooked | 112 | 10 |
| Braxton Davis | New Young Whigs of America | abg academy | 112 | 10 |