Crystallography, alkynyl-metal complexes

X-ray crystallography amino(l-alkynyl) carbenes, 170 chalcogen-bridged metal-carbonyl complexes, 244-248, 250-253, 255-256, 258-264, 266-272, 274-279, 281, 283-284, 287, 289, 292-293, 295-310 cobalt-alkyne complexes, 76-77, 82-83, 89-90, 94-96... 

In a kind of inversion of this concept, hydrocarbons can also serve as platforms for polycluster systems the tri- and tetrametallic complexes shown in Chart 8 (A and B) were recently prepared in our laboratory and characterized via X-ray crystallography at the University of Heidelberg (59). Compounds of this type are prototypes for extended oligomeric and polymeric networks such as that proposed in Chart 8(C), that are expected to exhibit extensive electron-delocalization between the metal centers (60). Systems of this kind, together with alkynyl-and phenyl-linked polyhedra, and multidecker sandwich-based arrays, are current targets of our research (61). 

---