Compounds Containing a Single Heteroatom

Topics in Heterocyclic Chemistry presents critical accounts of heterocyclic compounds (cyclic compounds containing at least one heteroatom other than carbon in the ring) ranging from three members to supramolecules. More than half of the more than 10000 compounds hsted in Chemical Abstracts are hete-rocychc compounds. The branch of chemistry deahng with these heterocyclic compounds is called heterocyclic chemistry, which is the largest branch of chemistry and as such the chemical hterature appearing every year as research papers and review articles is vast and can not be covered in a single volume. 

Whereas coordination of a CA to a lone electron pair of a heteroatom containing only single bonds typically results in a hypsochromic shift of the CA absorption maxima, upon complexation of germylenes with S atoms of thiocarbonyl compounds (and also... 

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