A recent suggestion, that transition metal complexes of unsaturated ligands can be regarded as cruciconjugated, is explored by studies of various complexes of Fe(II), the aromaticity of the resulting i systems being analyzed in terms of PMO theory. This approach is also applied to porphyrin. The conclusions are supported by preliminary SCF and MNDO calculations.

A review of the present state of organozinc coordination chemistry. with special emphasis on compounds of the type RZnX is given. Their preparation as well as some factors determining their structure and stability are discussed. Certain organozinc coordination compounds have been found to be effective catalysts for cyclo-oligomerization and polymerization reactions. in particular of oxygen-cont...

Numerous coordination compounds have recently been identified exhibit the technologically important property of bulk magnetic ordering as ferro-, ferri- and antiferromagnets. These range from ionic [Fe(C5Me5)2]+[TCNE].- (TCNE = tetracyanoethylene) ferromagnet to 3-D extended network ferrimagnets. Additionally, many magnetically ordered percyanometallates are summarized. This Award presentation ...