Crystal data for di-μ-chloro-bis[2-(di-tert-butylphosphino)-2-methylpropyl]dipalladium(II) (C₂₄H₅₂Cl₂P₂Pd₂) and [2(di-tert-butylphosphino)-2-methylpropyl]triphenylarsinopalladium(II) chloride (C₃₀H₄₁AsClPPd)

The indexed X-ray diffraction powder data of di-μ-chloro-bis[2-(di-tert-butylphosphino)-2-methylpropyl]dipalladium(C₂₄H₅₂Cl₂P₂Pd₂, DIPAL) and [2-(di-tert-butylphosphino)-2-methylpropyl]triphenylarsinopalladium(II) chloride (C₃₀H₄₁AsClPPd, ARPAL) are reported. DIPAL and ARPAL crystallize in the monoclinic space groups P2₁/c and P2₁/m, respectively. The refined cell parameters were determined by employing a Siemens Debye–Scherrer camera (Fe K radiation, λ_mean = 1.93736 Å). The cell constants are a = 7.707 (1), b = 15.186 (3), c = 13.389 (2) Å, β = 105.79 (1)°, V = 1507.9 ų, Z = 2, D_m = 1.47 (1), D_x = 1.511 Mg m⁻³ for DIPAL; and a = 9.626 (2), b = 14.347 (3), c = 11.966 (3) Å, β = 112.01 (1)°, V = 1532.1 ų, Z = 2, D_x = 1.407 Mg m⁻³ for ARPAL. The quantitative figures of merit (F_N) are F₂₂ = 20(0.010, 108) and F₂₂ = 38(0.009, 64), respectively. The JCPDS Diffraction File No. for DIPAL is 36-1982 and for ARPAL 36-1980.