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General procedure: A mixture of H3hmbd (0.75mmol), 3-aba(OH)2 (0.5mmol) and MnCl2·4H2O (0.5mmol) were added to methanol and stirred for 30min at room temperature. Then, triethylamine was spread into the solution, slowly. After two weeks, yellow block crystals of complex 1 were obtained and dried at room temperature. Yield 46.5percent. 2.2.2 Synthesis of {MnII2(hmbd)3[3-mba(OH)2]2}·Et3NH·2CH3OH (2) Complex 2 was obtained in the similar way as complex 1 except that 3-mba(OH)2 was used instead of 3-aba(OH)2. The single crystals of complex 2 were also yellow, being obtained at room temperature after about three weeks. Yield 48.7percent. IR (KBr, cm-1): 1328, 1383, 1545, 1607, 1657, 1444. Anal. calcd. For C55H65B2Mn2N9O13: C 55.43, H 5.50, N 10.58. Found: C 55.52, H 5.11, N 10.84.
General procedure: A mixture of H3hmbd (0.75mmol), 3-aba(OH)2 (0.5mmol) and MnCl2·4H2O (0.5mmol) were added to methanol and stirred for 30min at room temperature. Then, triethylamine was spread into the solution, slowly. After two weeks, yellow block crystals of complex 1 were obtained and dried at room temperature. Yield 46.5percent. 2.2.4 Synthesis of {CoII2(hmbd)3[3-mba(OH)2]2}·Et3NH·2CH3OH (4) Complex 4 was obtained in the similar way as complex 1 except that CoCl2·6H2O was used instead of MnCl2·4H2O, and 3-mba(OH)2 was used instead of 3-aba(OH)2. The way of synthesis of complex 1 can also get complex 4 with CoCl2·6H2O. The orange crystals can be found after 3?weeks. Yield 47.1percent. IR (KBr, cm-1): 1326, 1382, 1553, 1613, 1650, 1448. Anal. calcd. For C55H65B2Co2N9O13: C 55.07, H 5.46, N 10.51. Found: C 55.41, H 5.16, N 11.02.
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