FIG. 6.

Proposed interactions of pdtc with tellurium. Tellurite and tellurate are reduced by pdtc or its hydrolysis product H₂S and subsequently bound by pdtc and pdtc hydrolysis products, including pctc and dpa. Initially formed zero-valent tellurides release elemental Te and Se. The reaction pathways are shown qualitatively, not stoichiometrically. Using ESI-MS, all products were detected as charged molecules, and their structures were deduced from ESI-MS/MS daughter analysis (see Table 1 and Fig. 1).