Synthesis and Crystal Structure of a New Quaternary Nitride, Li₄Ca₁₃Ge₆N₁₈

Synthesis and Crystal Structure of a New Quinary Nitride: Li3Ca4(Ga3Ge)N8

“…It was noted that all those Li‐containing quaternary nitrides accompanied larger and heavier alkaline earth metals, Sr or Ba, rather than smaller Ca. Li 4 Ca 13 Ge 6 N 18 reported by us recently was a rare example of quaternary nitride that contains both Li and Ca …”

Structural, elastic, electronic and optical properties of the quaternary nitridogallate LiCaGaN2: First-principles study

“…Four strain patterns -one with nonzero 11 ε and 12 ε components, the second with nonzero 33 ε and 12 ε , the third with nonzero 22 ε and the fourth with nonzero 31 ε -are sufficient to cause stresses related to all 13 independent elastic constants for a monoclinic structure, namely C 11 , C 22 , C 33 , C 44 , C 55 , C 66 , C 12 , C 13 , C 15 , C 23 , C 25 , C 11 and C 35 . Three positive and three negative amplitudes are used for each strain component with a maximum strain value of 0.5% and the elastic constants are determined from a linear fit of the calculated stress as a function of strain.…”

“…It is found that a small amount of Li in the mixtures of reactants apparently facilitates the growth of single crystal nitride products [22]. In several occasions, Li was also incorporated into the products, generating Li-containing quaternary nitrides such as the quaternary nitridogallate LiCaGaN 2 [16].…”

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

“…Despite these differing synthetic approaches, nitridogermanates have been exclusively synthesized by employing the NaN 3 route starting from the pure elements in sodium flux with NaN 3 as nitrogen source. 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 . Nevertheless, the class of nitridogermanates is quite unexplored, and only a small number of compounds has been described so far.…”