Abstract
A pair of azido-bridged copper(II) complexes, [Cu2L2(μ 1,1-N3)2] (1) and [Cu2L2(μ 1,3-N3)2] · H2O (2) (HL = 1-[(3-dimethylaminopropylimino)methyl]naphthalen-2-ol), have been obtained from an identical synthetic procedure and starting materials with solvents as the only independent variable. Complex 1 was synthesized and crystallized using the anhydrous methanol, while 2 was synthesized and crystallized using 95% ethanol. Both complexes show interesting self-assembled structures in their crystals as elucidated by X-ray analysis. The end-on azido-bridged dinuclear 1 crystallizes in the P 1 space group. The end-to-end azido–bridged polymeric 2 crystallizes in the P21/c space group.
Acknowledgements
This work was financially supported by the Office of Dalian Science & Technology (Project No. 2007J23JH018) and by the Scientific Research Foundation of the Education Office of Liaoning Province (Project No. 20060495).