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Figure 2 Helical chain containing alternative pyrimidine and phthalic acid molecules (I) [symmetry code: (i) −x + 2, y + , −z + (ii) −x + 2, y − , −z + . |
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Figure 2 Helical chain containing alternative pyrimidine and phthalic acid molecules (I) [symmetry code: (i) −x + 2, y + , −z + (ii) −x + 2, y − , −z + . |