Study on the N-Acetyl-D-glucosamine as the Anti-aging Cosmetic Ingredients

The Crystal Structure of Nitridomagnesogermanate Ba[Mg3GeN4]:Eu2+ and Theoretical Calculations of Its Electronic Properties

“…Minor variations of the syntheses have been reported, for example, by substituting Ge metal through GeO 2 , or addition of small amounts of Li to facilitate crystal growth. [17][18][19][20][21][22] Nevertheless, the class of nitridogermanates is quite unexplored, and only a small number of compounds has been described so far.…”

Ca4Mg5Ge3N10 and Sr2Mg3GaN4.33: Two Mg‐Containing Nitrides and Their Structural Relation to (Sr,Ba)2Si5N8

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Especially Mg-containing nitrides are of key interest, since they play an important role as host lattices for lanthanidedoped luminescent materials such as Sr[Mg 3 SiN 4 ]:Eu 2+ , [16] Ba[Mg 3 SiN 4 ]:Eu 2+ , [17] M[Mg 2 Al 2 N 4 ]:Eu 2+ (M = Ca, Sr, Ba) and Ba[Mg 2 Ga 2 N 4 ]:Eu 2+ . [1] Up to now, only a small number of quaternary compounds containing Ge or Ga have been reported, and only a few also contain Mg. [1,[18][19][20][21][22][23][24][25] Most syntheses of nitridogermanates and nitridogallates start from the pure elements and employ the Na azide route. [19][20][21][22][26][27][28][29][30] Therefore, the starting materials as well as NaN 3 and Na were filled into Ta or Nb ampules, which were hermetically closed by arc welding and fired at around 760°C.…”