{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"d420488beff4b56260c6f87f0ba3c903364a90754d17bca1ec56684e184c6e4f","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["3c9b931ca2f0ca0c52a6b8f9edaa112b208c6c313d581b510ab79e89bee08e47","ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b"],"salt":"827356a569080f92b3dcff5461ef1e99efe2af98217bf0dd8851a6910014daba","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":"2","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 $3 \\times 10^{4}\\,\\mathrm{statvolt}/\\mathrm{cm}$) with its spatial profile across the interface.","problem_ref":"3c9b931ca2f0ca0c52a6b8f9edaa112b208c6c313d581b510ab79e89bee08e47","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":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"1d28846c9d3a27430d22a08d74631f5272ee44c311f73be3b1d4230474d2c5b6","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"a075dd71665a40772b4e785cc5fea089e90308cb60958ae46e358ff5507c8580","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"sIIhJ85LlDuT1OfrGFfirLYwcmf1gykXHvDi2MDxkmoUkEfjXmCxQYZSXE6wk5Z1G2N7dCxqaz9L5UH5b3cgAg"},"schema":"pubphys.envelope/1"},"record_hash":"1d28846c9d3a27430d22a08d74631f5272ee44c311f73be3b1d4230474d2c5b6","leaf_index":2642}