Publication Details (including relevant citation information):
Jason A. Perman and Michael J. Zaworotko
Reaction between p-aminobenzoic acid (HpABA) and Cu(NO3)(2) center dot 2.5H(2)O in basic MeOH/DMF affords green crystals of the dicopper paddlewheel complex, Cu-2(pABA)(4)(DMF)(2) center dot 2DMF, 1, identified by single crystal X-ray crystallography: triclinic P-1, with a = 10.3728(2) angstrom, b = 10.617(2) angstrom, c = 11.128(2) angstrom, alpha = 81.705(3)degrees, beta = 79.984(2)degrees, gamma = 65.965(2)degrees and Z = 2. The crystal structure of 1 reveals that it is the second polymorph of Cu-2(pABA)(4)(DMF)(2) center dot 2DMF and experiments on the stability of 1 indicate that it can be converted to Form I through desolvation followed by exposure to DMF.
Address (URL): http://www.springerlink.com/content/eg3673n62729424k/