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Original Articles

Supramolecular architecture built of Co(II) and a tripodal ligand containing 1-D water tapes with (H2O)16 cluster units

, , , , , , , & show all
Pages 1885-1893 | Received 22 Oct 2010, Accepted 05 Apr 2011, Published online: 20 May 2011
 

Abstract

The reaction of Co(NO3)2 · 6H2O with a tripodal ligand leads to a new complex {[Co(L)] · 2NO3 · 8H2O} (1) confirmed by single-crystal X-ray diffraction, infrared spectroscopy, and elemental analysis. The particular interest of 1 is in the formation of a 1-D water tape consisting of (H2O)16 cluster units, the neighboring water tapes are connected by free nitrate anions via hydrogen bonds into a 2-D guest layer. These guest layers are alternately packed face-to-face with the 2-D host layers along the a-axis to form a 3-D supramolecular architecture. There exist C–H ··· N and C–H ··· O weak hydrogen bonds between the guest layer and host layer. These weak hydrogen bonds and water–nitrate, water–water hydrogen bonds are important for the stability of the overall structure.

Acknowledgments

This work was supported by the Foundation of State Key Laboratory of Applied Organic Chemistry and the NSFC (20171019).

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