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Mijanuddin, Md.,Jana, Atish Dipankar,Drew, Michael G.B.,Hong, Chang Seop,Chattopadhyay, Basab,Mukherjee, Monika,Nandi, Mahasweta,Bhaumik, Asim,Helliwell, Madeline,Mostafa, Golam,Ali, Mahammad Elsevier 2009 Polyhedron Vol.28 No.4
<P><B>Graphical abstract</B></P><P>Two concomitant polymorphic coordination complexes (<B>I</B> and <B>II</B>) have been characterized crystallographically. Complex <B>I</B> shows the presence of a strong antiferromagnetic interaction and good catalytic efficiency in the liquid phase partial oxidation of olefins when immobilized on 2D-hexagonal mesoporous silica.</P><ce:figure></ce:figure> <P><B>Abstract</B></P><P>Two concomitant polymorphic coordination complexes (dark blue – <B>I</B> and black – <B>II</B>) with the formula (Cu<SUB>2</SUB>C<SUB>44</SUB>H<SUB>60</SUB>N<SUB>4</SUB>O<SUB>4</SUB>) have been synthesized and characterized crystallographically. Magnetic measurements show the presence of a strong antiferromagnetic interaction and the 2<I>J</I> value corresponds extremely well to the theoretically calculated one, indicating the fact that it follows nicely the magneto-structural relationship. Immobilization of the copper(II) complex <B>1</B> on a 2D-hexagonal mesoporous silica showed good catalytic efficiency in the liquid phase partial oxidation of olefins in the presence of TBHP as an oxidant.</P>