YNiIn and YCuIn form complete solid solutions YNiIn1−x Al x and YCuIn1−x Al x , which were characterized on the basis of X-ray powder diffraction. The ZrNiAl type crystal structures (space groups P 6 ‾ 2 m $P\overline{6}2m$ ) of YNiAl (a = 0.70386(9), c = 0.38327(4) nm, wR 2 = 0.0424), YNiIn0.77Al0.23 (a = 0.73895(9), c = 0.37707(4) nm, wR 2 = 0.0498) and YCuIn0.63Al0.37 (a = 0.73404(7), c = 0.39045(4) nm, wR 2 = 0.0314) were refined from the single crystal X-ray diffraction data. Exemplarily the electronic structure of YNiAl was studied, manifesting substantial Ni–Al bonding within the three-dimensional [NiAl] substructure. Comparison of YNiAl with isotypic YNiIn shows stronger Ni–Al bonding as compared to Ni–In. Magnetic susceptibility measurements of YNiIn1−x Al x (x = 0.1, 0.2, 0.7 and 0.9), YNiIn and YNiAl in the temperature range 3–300 K indicated Pauli paramagnetic behaviour with molar magnetic susceptibility of about 0.15–0.22 × 10−3 emu/mol.

中文翻译：

---

固溶体相的结构和性质 YTIn1−x Al x (T = Ni 和 Cu)

YNiIn 和 YCuIn 形成完全固溶体1−X 铝 X 和 YCuIn1−X 铝 X , 其特征是基于 X 射线粉末衍射。ZrNiAl 型晶体结构（空间群 磷 6 ‾ 2 米 $P\overline{6}2m$ ) 的 YNiAl (一个=0.70386(9),C= 0.38327(4) 纳米，wR 2= 0.0424), YNiIn0.77铝0.23(一个= 0.73895(9),C= 0.37707(4) 纳米，wR 2= 0.0498) 和 YCuIn0.63铝0.37(一个= 0.73404(7),C= 0.39045(4) 纳米，wR 2= 0.0314) 从单晶 X 射线衍射数据中提炼。示例性地研究了 YNiAl 的电子结构，在三维 [NiAl] 子结构中表现出大量的 Ni-Al 键合。YNiAl 与同型 YNiIn 的比较表明，与 Ni-In 相比，Ni-Al 键合更强。YNiIn 的磁化率测量1−X 铝 X (X= 0.1, 0.2, 0.7 和 0.9），YNiIn 和 YNiAl 在 3-300 K 温度范围内表明泡利顺磁行为，摩尔磁化率约为 0.15-0.22 × 10-3鸸鹋/摩尔。