High quality single crystals of SmCu₆In₆ were obtained from the reactions run in excess liquid indium and characterized by means of single crystal X-ray diffraction data. SmCu₆In₆ crystallizes in the YCu₆In₆ structure type, tetragonal space group $I4/mmm$ and lattice constants are 𝑎 = 𝑏 = 9.2036$(3) Å and 𝑐 = 5.4232(3) Å. SmCu$_{6−x}$In$_{6+x}$ (𝑥 = 0, 1, 2) compounds were obtained using arc melting and characterized using powder X-ray diffraction. Magnetic susceptibility data follow modified Curie-Weiss law behaviour above 50K and the experimentally measured magnetic moment values in SmCu₄In₈, SmCu₅In₇ and SmCu₆In₆ are 0.83 $\mu_B$, 1.45 $\mu_B$ and 0.90 $\mu_B$ per Sm atom, respectively. SmCu₅In₇ and SmCu₆In₆ compounds show antiferromagnetic ordering at $T_N = 7.8$ K, and no magnetic ordering was observed for SmCu₄In₈ down to 2 K. Electrical resistivity measurements show that all compounds are of metallic nature.

Sm₃Ni₅Al₁₉ was obtained as large rod shaped single crystals from reactive aluminium flux. Single crystal X-ray diffraction suggests that Sm₃Ni₅Al₁₉ crystallizes in the Gd₃Ni₅Al₁₉ structure type, orthorhombic space group $Cmcm$ and lattice constants 𝑎 = 4.0974(1) Å, 𝑏 = 16.0172(6)Å and 𝑐 = 27.0774(10) Å. Sm₃Ni₅Al₁₉ is a member of the Sm$_{2n+m}$Ni$_{4n+m}$Al$_{15n+4m}$ series with n = 1 and m = 1. The crystal structure of Sm₃Ni₅Al₁₉ consists of SmNiAl₄ and Sm₂Al₄Al₁₅ slabs intergrown along the 𝑏-axis. Magnetic susceptibility data on Sm₃Ni₅Al₁₉ confirms the paramagnetic nature with a complicated magnetic ordering below 18 K. The inverse susceptibility data follows modified Curie-Weiss law above 150 K with effective magnetic moment 1.3 $\mu_{\text{B}}$/Sm atoms suggests trivalent Sm atoms.