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Creators/Authors contains: "Qiao, Qiao"

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  1. ; ; ; ; (, Proc. of 63rd Annual Meeting of the Association for Computational Linguistics)
    Free, publicly-accessible full text available July 27, 2026
  2. ; ; ; ; ; (, Findings of the Association for Computational Linguistics ACL 2025)
    Free, publicly-accessible full text available July 27, 2026
  3. ; ; ; ; (, Proceedings of the 31st International Conference on Computational Linguistics)
    Free, publicly-accessible full text available January 19, 2026
  4. ; ; ; ; (, Springer Nature Singapore)
    Free, publicly-accessible full text available January 1, 2026
  5. ; ; ; (, 27th Pacific-Asia Conference on Knowledge Discovery and Data Mining)
    Accepted Manuscript Full Text Available
  6. ; ; ; ; (, Association for Computational Linguistics)
    Full Text Available 
  7. ; ; ; ; ; ; ; ; ; (, Communications Chemistry)
    Abstract Despite its electron deficiency, boron can form multiple bonds with a variety of elements. However, multiple bonds between boron and main-group metal elements are relatively rare. Here we report the observation of boron-lead multiple bonds in PbB2O–and PbB3O2–, which are produced and characterized in a cluster beam. PbB2O–is found to have an open-shell linear structure, in which the bond order of B☱Pb is 2.5, while the closed-shell [Pb≡B–B≡O]2–contains a B≡Pb triple bond. PbB3O2–is shown to have a Y-shaped structure with a terminal B = Pb double bond coordinated by two boronyl ligands. Comparison between [Pb≡B–B≡O]2–/[Pb=B(B≡O)2]–and the isoelectronic [Pb≡B–C≡O]–/[Pb=B(C≡O)2]+carbonyl counterparts further reveals transition-metal-like behaviors for the central B atoms. Additional theoretical studies show that Ge and Sn can form similar boron species as Pb, suggesting the possibilities to synthesize new compounds containing multiple boron bonds with heavy group-14 elements. 
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