Atomic structure of boron suboxycarbide B(C,O)0.155

Abstract

The structure of a high-pressure boron suboxycarbide B(C,O)0.1555 single crystal has been studied for the first time. The unit-cell parameters are a h = 5.618(1), c h = 12.122(1) Å, V = 331.38(1) Å3, sp. gr. R $$\bar 3$$ m, R hkl = 0.0479. The established common structural features of the interstitial rhombohedral α-boron-based B(C,O) phases and the data on the known carbides and boron suboxides allowed the characterization of the new phase.