Update citation info

README.md

@@ -225,4 +225,11 @@ https://huggingface.co/datasets/UniParser/RxnBench-Doc
 
 ## 📖 Citation
 
-our paper coming soon ...
+```bibtex
+@article{li2025rxnbench,
+  title={RxnBench: A Multimodal Benchmark for Evaluating Large Language Models on Chemical Reaction Understanding from Scientific Literature},
+  author={Li, Hanzheng and Fang, Xi and Li, Yixuan and Huang, Chaozheng and Wang, Junjie and Wang, Xi and Bai, Hongzhe and Hao, Bojun and Lin, Shenyu and Liang, Huiqi and Zhang, Linfeng and Ke, Guolin},
+  journal={arXiv preprint arXiv:2512.23565},
+  year={2025}
+}
+```