List of Chapters

Three Electron Bond, A New Paradigm in Organic Chemistry- A Review


Author(s): Puja Mishra; Souvik Basak*

Although chemical bonds in organic chemistry are mainly comprised of two electrons, spectroscopic and other evidence have confirmed that some bond may have three electron characteristics. These bonds, although not common in nature, may come into play when atoms having specific electronegative difference conjoin to form bonds. The lone pair of electrons on such atoms may be mobile following resonance shift between the epicenters and thus odd electron impart certain covalent character onto the bond already formed between the atoms.

Unreactive Phosphorus-Organophosphonates (mini review)


Author(s): Ramona Kuhn*; Isaac Mbir Bryant; Marion Martienssen

Phosphonates comprise a very large group of organophosphonates including aminophosphonates. Their main chemical feature leads to complexation of earth alkaline metals and transition metals (under stoichiometric). Therefore they are very often applied as complexing agents of detergents, as compounds of industrial cleaning products, or as antiscalants in cooling water systems and desalination processes. The high consumption of phosphonates within the past two decades leads to an increased discharge into the aquatic environment, of which the environmental risk is still uncertain.

Burning Coal-Mining Heaps as an Organochemical Laboratory: Interesting Trace Compounds and Their Potential Sources


Author(s): Lukasz Kruszewski*

A continuation of research on the composition of complex gaseous emanations in burning post-mining waste heaps of the Upper Silesian Basin, Poland, brought new data for a large group of relatively weakly studied fumarolic vents. It concerns admixing gases either semi-quantified from in situ recorded FTIR spectra or proposed via qualitative analysis of their derivative residual curves.