• trans-distortion to relieve bulk strain - Cu(dafone)2Cl2, Cu(dafone)2Br2, [Cu(dafone)2(H2O)2](NO3)2 - molecular g-values from exchange averaged crystal tensors : C. Balagopalakrishna, M. V. Rajasekharan, S. Bott, J. L. Atwood and B. L. Ramakrishna Inorg. Chem. 31, 2843-2846(1992); S. Menon and M. V. Rajasekharan Polyhedron 17, 2463-2476(1998).

• Very different magnetic properties due to different crystal packings - Cu(bp3ca)Cl2.H2O, Cu(bp3ca)Br2.H2O - lattice water as a transmitter of magnetic coupling across long distances - incomplete exchange averaging leads to monoclinic g-tensor in an orthorhombic crystal : R. Goddard, B. Hemalatha and M. V. Rajasekharan Acta Cryst. C46, 33-35(1990); C. Balagopalakrishna and M. V. Rajasekharan Phys. Rev. B 42, 7794-7802(1990); S. Menon, M. V. Rajasekharan and J.-P. Tuchagues Inorg. Chem. 36, 4341-4346(1997).

• Moderately strong antiferromagnetic exchange via H-bonding, rather than, Cl...Cl - [dafoneH2][CuCl3H2O]Cl : S. Menon, C. Balagopalakrishna, M. V. Rajasekharan and B. L. Ramakrishna Inorg. Chem. 33, 950-954(1994).

tris-chelate of Cu(II) with dafone stabilised by a polyiodide anion

Cu(II) and pqd/bqd - hard to crystallise materials and their Ni, Co analogs

Cu(II) heteropoly salts - EPR as a structural probe
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ligands : dafone = 4,5-diazafluoren-9-one; bp3ca = 2,2'-bipyidine-3,3'-dicarboxylic acid; bqdH2 = benzoquinonedioxime; pqdH2 = 9,10-phenanthrenedionedioxime