Low-temperature structure of lithium nesosilicate, Li₄SiO₄, and its Li1s and O1s X-ray photoelectron spectrum

Li 4 siO 4 , M r =119.84, λ(Mo Kα)=0.71073 A 150 K, monoclinic, P2 1 /m, a=11.532 (1), b=6.075 (1), c=16.678 (1) A, β=99.04 (4) o , V=1153.9 (2) A 3 , μ(Mo Kα)=5.3 cm -1 , Z=14, F(000)=812, D x =2.414 Mg m -3 , R=0.028, wR=0.025 for 2255 observed reflections with I>2.5σ(I). The crystal structure of lithium nesosilicate has been reinvestigated at 150 K and its room-temperature Li 1s and O 1s XPS spectrum has been measured