Crystal data for p ‐dichlorobenzene, p ‐dibromobenzene and their mixed crystals at 293 K

The powder data at 293 K of p ‐dichlorobenzene (pDCB), C 6 H 4 Cl 2 , p ‐dibromobenzene (pDBB), C 6 H 4 Br 2 , and of their mixed crystals [pDCB] x [pDBB] (1− x ) are reported. Their thermal stability at 293 K is given. They are all isomorphous, monoclinic, P 2 1 / a with Z = 2. a = 14.792 (6), b = 5.839 (2), c = 4.036 (2) Å, β = 112.52 (4)°, V = 322.0 (5) Å 3 , D x = 1.516 Mg m −3 for pDCB; a = 15.487 (2), b = 5.836 (2), c = 4.108 (1) Å, β = 112.74 (1), V = 342.5 (3) Å 3 , D x = 2.289 Mg m −3 for pDBB; a = 14.893 (10), b = 5.837 (7), c = 4.046 (3) Å, β = 112.48 (5)°, V = 325.1 (9) Å 3 , D x = 1.592 Mg m −3 for [pDCB] 0.90 [pDBB] 0.10 ; a = 14.942 (5), b = 5.840 (2), c = 4.048 (1) Å, β = 112.53 (3)°, V = 326.3 (4) Å 3 , D x = 1.677 Mg m −3 for [pDCB] 0.80 [pDBB] 0.20 ; a = 15.018 (4), b = 5.846 (1), c = 4.061 (1) Å, β = 112.50 (2)°, V = 329.4 (3) Å 3 , D x = 1.751 Mg m −3 for [pDCB] 0.70 [pDBB] 0.30 ; a = 15.138 (11), b = 5.843 (3), c = 4.067 (3) Å 3 , β = 112.57 (8)°, V = 332.2 (8) Å 3 , D x = 1.825 Mg m −3 for [pDCB] 0.60 [pDBB] 0.40 ; a = 15.247 (6), b = 5.842 (2), c = 4.081 (2) Å, β = 112.66 (5)°, V = 335.4 (5) Å 3 , D x = 1.896 Mg m −3 for [pDCB] 0.50 [pDBB] 0.50 ; a = 15.300 (5), b = 5.838 (1), c = 4.081 (1) Å, β = 112.54 (4)°, V = 336.7 (3) Å 3 , D x = 1.976 Mg m −3 for [pDCB] 0.40 [pDBB] 0.60 ; a = 15.373 (4), b = 5.842 (1), c = 4.094 (1) Å, β = 112.64 (3), V = 339.3 (3) Å 3 , D x = 2.048 Mg m −3 for [pDCB] 0.30 [pDBB] 0.70 ; a = 15.410 (7), b = 5.838 (4), c = 4.098 (2) Å, β = 112.65 (3)°, V = 340.2 (6) Å 3 , D x = 2.129 Mg m −3 for [pDCB] 0.20 [pDBB] 0.80 ; and a = 15.450 (3), b = 5.838 (1), c = 4.103 (1) Å, β = 112.69 (1)°, V = 341.4 (2) Å 3 , D x = 2.208 Mg m −3 for [pDCB] 0.10 [pDBB] 0.90 . The JCPDS Diffraction File Nos. are: 34‐1987 for pDCB; 34‐1985 for pDBB; 34‐1986 for [pDCB] 0.50 [pDBB] 0.50 .