Extended Data Fig. 3: Structures of the TA-CCO hybrid molecule and its polymerization.
From: Organic–inorganic covalent–ionic molecules for elastic ceramic plastic
a, HRTEM images of partial single TA-CCO hybrid molecules with lengths of approximately 3.2 nm. The variation in image contrast implied the coexistence of CaCO3 (higher electron density) and TA (lower electron density) in the TA-CCO hybrid molecule. b, Size of a TA-CCO hybrid molecule calculated with the Multiwfn program62, which was consistent with the HRTEM results. c, Typical chemical shift of tertiary carbon on the carbon ring before and after polymerization indicates ring-opening polymerization of disulfide bonds63,64.
