This technique’s saturation transfer Forsen experiment applies modified Bloch equations to determine the movement of molecules. Ligand binding to proteins can be measured using CSPs in this technique, which can lead to line broadening at low exchange rates. Long-distance interactions can be identified using cross peaks in a two-dimensional form of this technique called COSY. Details on connectivity, including bond angle, can be determined from spin–spin coupling in this technique. Benzene’s anisotropy (“an-eye-SAW-truh-pee”) deshields protons in this technique, causing it to have higher H-one values for chemical shift. For 10 points, name this technique that places chemical compounds in an applied magnetic field to determine their structure. ■END■
| 2025 ACF Nationals | 2025-08-09 | Y | 14 | 100% | 0% | 7% | 72.00 |
| Florida | Main | Y | 1 | 100% | 0% | 100% | 106.00 |
| Great Lakes | Main | Y | 1 | 100% | 0% | 0% | 54.00 |
| Lower Mid-Atlantic | Main | Y | 1 | 100% | 0% | 0% | 68.00 |
| North | Main | Y | 1 | 100% | 0% | 0% | 53.00 |
| Northeast | Main | Y | 1 | 100% | 0% | 0% | 99.00 |
| Canada | Main | Y | 1 | 100% | 0% | 0% | 54.00 |
| South Central | Main | Y | 1 | 100% | 0% | 100% | 106.00 |
| Southeast | Main | Y | 1 | 100% | 0% | 0% | 69.00 |
| Upper Mid-Atlantic | Main | Y | 1 | 100% | 0% | 100% | 106.00 |
| Upstate NY | Main | Y | 1 | 100% | 0% | 0% | 65.00 |
| Pacific Northwest | Main | Y | 1 | 100% | 0% | 0% | 57.00 |
| Player | Team | Opponent | Buzz Position | Value |
|---|---|---|---|---|
| Raymond Chen | Toronto B | Toronto A | 24 | -5 |
| Bryan Ugaz | Arizona State A | Texas A | 24 | -5 |
| Ted Harrison | Edinburgh A | Bristol A | 41 | 10 |
| Eloise Wood | Imperial B | Bristol B | 48 | 10 |
| James Morgan | Oxford A | Cambridge A | 48 | 10 |
| Eugenia Tong | Imperial A | Warwick A | 52 | 10 |
| Ryan Rosenberg | NYU A | Maryland A | 53 | 10 |
| Arvin Boraghi | Cambridge B | Edinburgh B | 53 | 10 |
| Karthik Jayaram | UCLA A | UCLA B | 54 | 10 |
| Shiva Tegulla | UCF A | UF B | 54 | 10 |
| Yashwanth Bajji | Michigan A | Illinois A | 57 | 10 |
| Ahmed Azhari | Cambridge D | City St George's A | 57 | 10 |
| Will McCurley | Auburn A | Bruin A | 65 | 10 |
| David Worley | LSE A | Sheffield A | 65 | 10 |
| Roxanne Tang | OSU A | Pitt A | 68 | 10 |
| Yrwin Batan | MIT A | Harvard | 69 | 10 |
| Phillip Jordan | Imperial C | Manchester B | 69 | 10 |
| Oliver West | Cambridge C | Southampton A | 69 | 10 |
| Nathan Easow | Manchester A | Birmingham A | 86 | -5 |
| CT Tang | Sheffield B | Warwick B | 88 | 10 |
| Ben Hellman | Swarthmore A | Princeton A | 99 | 10 |
| Mia Clark-Webb | Oxford B | Durham A | 100 | 10 |
| Aaron Marchand | Carleton | Macalester B | 101 | -5 |
| Benjamin Chapman | Toronto A | Toronto B | 106 | 10 |
| Milo Scanlon | Macalester B | Carleton | 106 | 10 |
| Matthew He | Texas A | Arizona State A | 106 | 10 |
| Eoin Neale | Lancaster A | LSE B | 106 | 10 |
| Jaz the Mononymous | Southampton B | Sheffield C | 106 | 0 |
| Zhangir Satzhanov | Birmingham A | Manchester A | 106 | 10 |
| Ian Costigan | Sheffield C | Southampton B | 106 | 10 |