Abstract
The synthesis of poly(propylene carbonate) with 100% 13C-labeled carbonate carbons is reported. The \(v_{{\mathrm{CO}}_{\mathrm{3}}}\) vibration is shifted 45 cm−1 lower than that observed in its 12C analog. This lowering of the \(v_{{\mathrm{CO}}_{\mathrm{3}}}\) vibrational mode of the copolymer provides a window for observing νNO stretching motions in incorporated dinitrosyl iron complexes.
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We gratefully acknowledge the financial support of the National Science Foundation (CHE-1665258) and the Robert A. Welch Foundation (A-0923).
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Bhat, G.A., Darensbourg, M.Y. & Darensbourg, D.J. Copolymerization of propylene oxide and 13CO2 to afford completely alternating regioregular 13C-labeled Poly(propylene carbonate). Polym J 53, 215–218 (2021). https://doi.org/10.1038/s41428-020-0391-0
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DOI: https://doi.org/10.1038/s41428-020-0391-0
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