Controlled Amine-Borane Dehydropolymerization Enabled by Mechanistic Insight Using the Ir( t Bu-POCOP)H 2 Catalyst - Chloe M. Van Beek; M. Arif Sajjad; Joe C. Goodall; Catherine L. Lyall; John P. Lowe; Simon B. Duckett; J. Scott McIndoe; Charles Killeen; Guy C. Lloyd-Jones; Ulrich Hintermair; Stuart A. Macgregor; Richard E. Douthwaite; et al. (Journal of the American Chemical Society, 2026)