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Figure 4 The four different types of (6) hydrogen-bonded chains formed by the title compound. The C—H⋯O contacts are shown with dashed lines. (a) The C1—H1B⋯O7i chain, viewed along the b axis, (b) the C11—H11B⋯O12ii chain, viewed along the a axis, (c) the C10—H10C⋯O5iii chain, viewed along the c axis (d) the C15—H15C⋯O3iv chain, viewed along the a axis. [Symmetry codes: (i) −x + 1, y, z − ; (ii) x, −y + 1, z − ; (iii) −y + 1, x − , z + ; (iv) x, y, z + 1.] |