TY - RPRT TI - The Singlet–Triplet Gap of Cyclobutadiene: The CIPSI-Driven CC( P ; Q ) Study AU - Priyadarsini, Swati S. [Michigan State University, East Lansing, MI (United States)] (ORCID:000000024708119X) AU - Gururangan, Karthik [Michigan State University, East Lansing, MI (United States)] (ORCID:0000000309832279) AU - Shen, Jun [Michigan State University, East Lansing, MI (United States)] (ORCID:0000000318383719) AU - Piecuch, Piotr [Michigan State University, East Lansing, MI (United States)] (ORCID:0000000272071815) PY - 2025 DO - 10.1021/acs.jpca.5c07572 UR - https://www.osti.gov/biblio/3009715 ID - 3009715 ER -