The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Based on tetrahedral lonsdaleite‐like C4 inserted with C(sp2), C(sp1) and both C(sp2)−C(sp1) ultrahard hybrid allotropes ene‐C5, yne‐C6, and ene‐yne‐C7 were generated and identified from quantum density functional theory DFT calculations of ground states. The crystal density and the cohesive energy were found to decrease along the series C4−C5−C6−C7 from the larger openness of the structures due to...