Syntheses and crystal structures of two structurally diverse cobalt complexes constructed from 5-hydroxyl-1,3-benzenedicarboxylates

Two structurally diverse compounds, {[Co(4,40-bipy)(H2O)4](hmbdc)(H2O)}n (1) and {[Co(4,40-bipy)(hmbdc)(H2O)2](4,40- bipy)(DMF)}n (2) (H2hmbdcZ5-hydroxyl-1,3-benzenedicarboxylic acid, 4,40-bipyZ4,40-bipyridine), were synthesized using different starting materials and solvents. Compound 1 possesses hydrogen-bonded 3D networks encapsulating 1D covalently bonded infinite [Co(4,40- bipy)(H2O)4]2C chain. Compound 2 shows a 2D architecture and free 4,40-bipy and DMF molecules fill in the channels of the extended 3D hydrogen bonding network as guest molecules. q 2004 Elsevier B.V. All rights reserved