E-J Chem., 8(2), pp 603- 608

The strategy of self-assembly, which makes use of in-built molecular capabilities to direct stereoselectively the association of chemical building blocks of comparable dimensions,has been widely applied in current research to design and develop new materials that are needed to foster emerging technologies1-3. In this respect, the vanguard field of onedimensional metals typified by the TTF�TCNQ salt4 (TTF is tetrathiafulvalene; TCNQ is Tetracyano-p-quinodimethane) and related organic conductors5 has been at the focus of interest in contemporary research and development.Our current research program aims to fabricate Heisenberg-type magnetic materials suitable for systematic studies of long-range magnetic interactions as a function of on-site spin densities. Recently, indeed, we isolated quinolinium trans-diaquabis(oxalato) chromate(III)6, an organic-inorganic hybrid salt that crystallizes in an interesting structure formed by segregated infinite stacks of diamagnetic organic cations and paramagnetic inorganic complex anions, with a regular spacing of 6.635(1) � between next neighboring CrIII centers. Herein, we describe the title compound as a useful precursor for the provision of the flat ions needed in forthcoming metathetic syntheses.