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crystal data
The powder data for p-bromochlorobenzene(pBCB) and p-dichlorobenzene/p-bromochlorobenzene mixed crystals [pDCB]x[pBCB]1 − x at 293 K are reported; their thermal stability at 293 K is given. Vertical diffractomer, graphite monochromator, Cu Kα, λ = 1.5405 Å. They are all isomorphous, monoclinic, P21/a with Z = 2. a = 15.134(4), b = 5.843(2), c = 4.073(1) Å, β = 112.53(1)°, V = 332.7 Å3, Dx = 1.911 Mg m−3 for pBCB. a = 14.890(5), b = 5.848(5), c = 4.046(2) Å, β = 112.53(2)°, V = 325.4 Å3, Dx = 1.636 Mg m−3 for [pDCB]0.70[pBCB]0.30. a = 15.004(6), b = 5.840(3), c = 4.059(2) Å, β = 112.48(2)°, V = 328.6 Å3, Dx = 1.755 Mg m−3 for [pDCB]0.40[pBCB]0.60. a = 15.101(4), b = 5.844(2), c = 4.066(2) Å, β = 112.51(2)°, V = 331.5 Å3, Dx = 1.873 Mg m−3 for [pDCB]0. 10[pBCB]0.90. The JCPDS Nos. are: 36-1995 for pBCB; 36-1994 for [pDCB]0.70[PBCB]0.30; 36-1993 for [pDCB]0.40[pBCB]0.60; 36-1992 for [pDCB]0.10[pBCB]0.90. Data for [pDCB]0.90[pBCB]0.10, [pDCB]0.80 [pBCB]0.20, [pDCB]0.60 [pBCB]0.40, [pDCB]0.50[pBCB]0.50, [pDCB]0.30[pBCB]0.70 and [pDCB]0.20[pBCB]0.80 have also been measured and are available from the authors or as part of the Supplementary Publication.