D2MgO2
Partin, D. E.Okeeffe, M.Vondreele, R. B.
Journal of Applied Crystallography (1994) 27, 581-584
a=3.1455Å b=3.1455Å c=4.7646Å
α=90.000° β=90.000° γ=120.000°
CaD2O2
Leinenweber, K.Partin, D. E.Schuelke, U.Okeeffe, M.von Dreele, R. B.
Journal of Solid State Chemistry (1997) 132, 267-273
a=5.3979Å b=6.0931Å c=5.9852Å
α=90.000° β=103.581° γ=90.000°