Using the solvothermal method, we present the comparative preparation of [Zn 2 (Hfhba) 4 (phen) 2 ] (1), [Zn 2 (Hfhba) 4 (2,2 0 -bipy) 2 ] (2) and [Zn 2 (Hfhba) 4 (4,4 0 -bipy) 2 ] n (3), where H 2 fhba is 5-fluoro-2-hydroxy-benzoic acid, phen is 1,10-Phenanthroline, 2,2 0 -bipy is 2,2 0 -Bipyridine, 4,4 0 -bipy is 4,4 0 -Bipyridine. Complexes 1-3 were characterized by elemental analysis, IR, UV-Vis spectroscopy, and X-ray single-crystal diffraction. Complexes 1 and 2 are two new dinuclear complexes and 3 is a 1-D polymer. Luminescent properties of 1-3 have also been studied.

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A new co-crystal complex [Ni 7 (emmp) 6 (CH 3 O) 2 (OH) 4 ][Ni(emmp) 2 ]·(ClO 4 ) 2 (1, Hemmp is 2-ethoxy-6-methyliminomethyl-phenol) has been synthesised by microwave-assisted method. Complex 1 was characterised by IR spectroscopy, elemental analysis, Raman spectroscopy and X-ray single-crystal diffraction. The complex consists of a heptanuclear cation cluster [Ni 7 (emmp) 6 (CH 3 O) 2 (OH) 4 ] 2þ , a mononuclear complex [Ni(emmp) 2 ] and two counteranions. Complex 1 displays the contents of antiferromagnetic and ferromagnetic properties.