Four transition metal complexes, namely Cu 2 Cl 2 (HL 1 ) 2 (1), Co(HL 1 ) 2 (2), Cu(HL 2 ) 2 (3), Co(HL 2 ) 3 (4)-naphthalen-2-ol} were synthesized and characterized by single-crystal X-ray diffraction, IR spectroscopy, and elemental analysis. The interactions of these copper and cobalt complexes with calf thymus DNA (CT-DNA) were studied by absorption * Dr. M.-J. Niu Fax: +86-0635-8239121 E-Mail: niumeiju@163.com [a] Shandong Provincial
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