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Card Information Names: Terephthalic acid Formula: C8 H6 O4 PDF Number: 31-1916 Quality: star Subfiles: organic CP EDU FOR Cell and Symmetry Information System: triclinic Space Group: P-1 (no. 2) a: 6.433 b: 7.393 c: 3.739 a: 99.37 b: 91.51 g: 83.23 Density (Dm): 1.510 Density (Dx): 1.583 Z: 1 Instrument Information Radiation: CuKa1 Wavelength: 1.5405 Instrument(d): Guinier Cut Off: 50.0 Instrument(I): densitometer I type: unknown Comments and Additional Information General: Space group from Bailey, Brown, Acta Crystallogr., 22 387 (1967) C.P. Chemical. Dissolution in diluted NaOH, followed by precipitation with HCl gives the same form. Pattern: To replace 00-022-1941. General: Merck Index , 9th Ed., 8882. Literature References General: Technisch Physische Dienst, Delft, TheNetherlands. ICDD Grant-in-Aid (1968) Peak Data PeakList h k l d I 0 1 0 7.2500 2 1 0 0 6.3900 2 1 1 0 5.0900 100 0 0 1 3.6900 2 0 2 0 3.6200 2 0 -1 1 3.5300 75 2 0 0 3.1900 100 1 -1 1 3.0100 6 2 -1 0 2.8070 6 -1 1 1 2.7390 6 -1 -2 1 2.6780 6 2 2 0 2.5470 6 -2 -1 1 2.4440 4 0 2 1 2.3990 2 1 3 0 2.3520 2 1 2 1 2.3000 2 2 -2 0 2.2700 10 -1 2 1 2.1930 8 -2 1 1 2.1760 2 -1 -3 1 2.1420 2 3 0 0 2.1290 2 3 1 0 2.1100 2 2 -2 1 2.0200 2 3 -1 0 1.9820 2 -2 -3 1 1.9040 2 -3 -1 1 1.8750 2 1 3 1 1.8520 2 0 4 0 1.8110 2 1 4 0 1.7980 2 -1 3 1 1.7680 6 -1 -2 2 1.7270 2 2 -3 1 1.7210 2 1 -4 0 1.6910 2 -1 1 2 1.6540 2 -2 -1 2 1.6340 2 3 -2 1 1.6270 2 2 0 2 1.5920 4 -1 -3 2 1.5780 2 0 2 2 1.5460 2 1 4 1 1.5220 2 |
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