{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"ffa4201f919b439438ec66bdbea312f895b71909632cdfdaac17c570e1c9ca9e","created":"2026-10-03T07:17:58Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"9fe571dd5f15cb5bbe696a73b2d247bfbd9c802224608d4da2c15ed551f22bce","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"value","assisted_by":[],"external_id":"chem.aqueous-interfaces.interfacial-field","kind":"well-posed","literature_status":"open","n":"1","parents":[],"plain":"Some explanations of fast droplet chemistry need very strong electric fields right at the water surface. Measuring how strong these fields really are would test those explanations.","posed_since":"","precise":"Determine the mean electric field projected on a probe bond at the water-air and water-oil interfaces at 300 K, from vibrational Stark shifts of interface-specific probes and from ab initio molecular dynamics, and compare with bulk water. The answer is the field magnitude (reported values range up to about $3e4\\,\\mathrm{statvolt}/\\mathrm{cm}$) with its spatial profile across the interface.","problem_ref":null,"references":"","settled_by":"Surface-selective vibrational Stark spectroscopy calibrated against bulk and ab initio simulations with the same probe.","status_note":"","title":"Magnitude of the electric field at water-hydrophobic interfaces","topic_ref":"918cab5fffb6928d499834f70aaf71d4b8e0b2721de2faefb454f55dc900049a"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"3c9b931ca2f0ca0c52a6b8f9edaa112b208c6c313d581b510ab79e89bee08e47","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"9be7e34b13276f908cf9312e1a4320289c2d3da96eb40fe0e83504d4e03aab46","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"_M4Eaq7B9CiTdYib4z3Tcp4y_2WkG7ju_1f5a2SLlk5BhJN4q5JjsVOevKYR-snxGJG6w45ZH0XIaOHZkcJkCA"},"schema":"pubphys.envelope/1"},"record_hash":"3c9b931ca2f0ca0c52a6b8f9edaa112b208c6c313d581b510ab79e89bee08e47","leaf_index":842}