ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,508, issued on Feb. 3, was assigned to The Trustees of Princeton University (Princeton, N.J.).

"Tri-(adamantyl) phosphines and applications thereof" was invented by Brad P. Carrow (Princeton, N.J.) and Liye Chen (Princeton, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one aspect, phosphine compounds comprising three adamantyl moieties (PAd3) and associated synthetic routes are described herein. Each adamantyl moiety may be the same or different. For example, each adamantyl moiety (Ad) attached to the phosphorus atom can be independently selected from the group consisting of adamantane, diamantane, triamantane and derivatives thereof. Transi...