Synthesis and crystal structure of two new discrete, neutral complexes of manganese and zinc using a rigid organic clip.

Two discrete neutral dimanganese(II) and tetrazinc(II) complexes were synthesized from a rigid organic clip and the corresponding metal acetates. The compounds were characterized by elemental analysis and single crystal X-ray diffraction study. The manganese species is a dinuclear discrete product with two disordered acetates bridging two manganese centers, while the zinc one consists of two octahedral and two tetrahedral Zn(II) centers with both bridging acetates and triply micro(3)-hydroxides. Variable temperature magnetic measurement reveals the existence of weak antiferromagnetic interaction (J = -1.6 cm(-)(1); H = -2JS(1).S(2)) within the manganese complex.