Research note

Angewandte Chemie International Edition

Hypothesis-and-Refinement Learning of Organic Structures From Multimodal Spectroscopic Data

Chengchun Liu†, Zhiyuan Yan†, Li Yuan, Hao Li, Boxuan Zhao, Yonghong Tian, Bartosz A. Grzybowski, and Fanyang Mo

A hypothesis-and-refinement system that proposes molecular structures from multimodal spectra, then repairs them with formula-, exact-mass-, and unsaturation-aware molecular generation.

01 / Problem

Problem

Molecular structure elucidation is an underdetermined inverse problem: each spectrum contains only partial evidence, while many structures can appear plausible.

02 / Approach

Approach

The workflow first proposes candidate structures from complementary spectral evidence, then refines them using explicit molecular-formula, exact-mass, and unsaturation constraints.

03 / Why it matters

Why it matters

Combining multimodal evidence with explicit chemical constraints makes automated structure elucidation more chemically grounded and easier to inspect.

04 / Publication details

Publication details

Authors
Chengchun Liu†, Zhiyuan Yan†, Li Yuan, Hao Li, Boxuan Zhao, Yonghong Tian, Bartosz A. Grzybowski, and Fanyang Mo
Journal
Angewandte Chemie International Edition
Year

BibTeX

@article{liu2026spectromol,
  title   = {Hypothesis-and-Refinement Learning of Organic Structures From Multimodal Spectroscopic Data},
  author  = {Chengchun Liu and Zhiyuan Yan and Li Yuan and Hao Li and Boxuan Zhao and Yonghong Tian and Bartosz A. Grzybowski and Fanyang Mo},
  journal = {Angewandte Chemie International Edition},
  year    = {2026},
  date    = {2026-09-11},
  eid     = {e9212238},
  doi     = {10.1002/anie.9212238},
  url     = {https://doi.org/10.1002/anie.9212238}
}