Tellurium, surface chemistry

If you move left one column in the periodic table from the halides, the chalcogenides need two electrons to complete their valence shell, and thus can bond to the surface and each other simultaneously. This appears to account for much of the interesting surface chemistry of chalcogenide atomic layers. Chalcogenides, including oxides (corrosion), are some of the most studied systems in surface chemistry. The oxides are clearly the most important, but significant amounts of work have been done with sulfur, selenium and tellurium. 

Organic Compounds of Sulphur, Selenium, and Tellurium Radiochemistry Reaction Kinetics Saturated Heterocyclic Chemistry Statistical Mechanics Surface and Defect Properties of Solids Terpenoids and Steroids Theoretical Chemistry... 

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