Group 13 Lewis acid adducts of [PCl2N]3 by Zin-Min Tun and others (2011, 10.1021/ic201075z)

Inorganic Chemistry 50, 8937–8945. Products prepared under strict anaerobic conditions were studied by crystallography and multinuclear variable-temperature NMR. These are ambient-temperature adduct observations, not direct identification of a high-temperature polymerization intermediate.