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Dibenzoyl-L-tartaric acid (db-L-tarH2) reacts with [Cu2(μ-O2CCH3)4(H2O)2] to form the tartrate complex [Cu(L-tar)] (1) (L-tarH2) = L-tartaric acid). 1 reacts with 2,2′-bipyridine (bipy) and 1,10-phenanthroline (phen) yielding [Cu(L-tar)(bipy)] · 6H2O (2) and [Cu(L-tar)(phen)]· 4H2O (3), respectively. A crystal of composition {[Cu(L-tar)(phen)] · 6H2O}n (4) was taken directly from the original mother liquor of 3. The X-ray crystal structure of the polymeric complex 4 shows each copper(II) ion to be six-coordinate, being chelated by a phenanthroline ligand and also chelated by a carboxylate oxygen atom and a hydroxyl oxygen atom from one end of a tartrate group. A carboxylate oxygen atom and a hydroxyl oxygen atom from one end of a symmetry-related tartrate ligand also chelates to the metal. Dibenzoyl-L-tartaric acid also reacts with [Mo2(μ-O2CCH3)4], [Mo2(CH3CN)8][BF4]4, {[Ru2(μ-O2CCH3)4Cl]}n and Na4[Rh2(μ-CO3)4] · 2.5H2O to give {[Mo2(db-L-tar)2] · 5H2O}n (5), [Mo2(db-L-tar)(CH3CN)4][BF4]2 · 7H2O (6), {[Ru2(db-L-tar)2.5] · 2H2O}n (7) and {[Rh2(db-L-tar)2(H2O)2] · H2O}n (8), respectively. |
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