Figure 2 (IMAGE) Tohoku University Caption Experimental and simulated cation diffusion barriers of MB12H12·12H2O (M = Mg/Zn) closo-type materials. Credit Hao Li et al. Usage Restrictions Reporters may use freely these materials in news coverage with appropriate credit information. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.