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Figure 2 The tetrahedral coordination environment of the Zn1 and Zn2 ions. Green broken lines indicate the weak hydrogen bonds between the carboxylate groups of the (BTC)3− ions and H—N groups of the 2-MeImH ligands. [Symmetry codes: (i) −x + , y + , z; (ii) x, −y, z + ; (iii) x, −y, z − ; (iv) −x + , y − , z; (v) x + , −y + , −z; (vi) −x + 1, y, −z − ; (vii) −x + 1, y, −z + ; (viii) x − , −y + , −z.] |