Radical Ring-Opening Polymerization of Phosphorus Heterocycles: Computational Design of Suitable Phosphetane Monomers Michelle L. Coote, 1 Jennifer L. Hodgson, Elizabeth H. Krenske, Mansoor Namazian, and S. Bruce Wild Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia SUPPLEMENTARY DATA 1 To whom correspondence should be addressed. Email mcoote@rsc.anu.edu.au