Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
a) Triangular [P6N16] units built up from layers A and B b) Triangular [P6N16] units built up from layers A‘ and B‘ c) Projection of the structure of BaP6N10NH along [0 0 1]. Color coding: P1 centered tetrahedra: grey, P2 centered tetrahedra: blue.
