**Meet the editor**

Prof Peter Papoh Ndibewu holds a PhD in Chemistry (NMMU Port Elizabeth, South Africa) and is a former visiting scholar at the University of Saskatchewan (Saskatoon, Canada). He currently teaches analytical, physical, and metallurgical chemistry at the Tshwane University of Technology, Pretoria, South Africa. He is an acclaimed researcher and has published widely on multidisciplinary

themes of interest. His current research activities focus on spectroscopy and composite materials characterization, and soil hydrogeochemistry. He was previously the Chief Consulting Application Scientist (Africa) for the Advanced Chemistry Development Inc., Toronto, Canada.

Contents

**Preface VII**

Chapter 1 **Introductory Chapter: Chalcogen Chemistry - The Footprint into**

Chapter 2 **Modern Analytical Chemistry Methods for Chalcogen Materials**

Surjani Wonorahardjo, Fariati Fariati and I Wayan Dasna

Chapter 3 **The Characterization of a Newly Layered Bimetallic Hydrogen Selenite Copper-Selenium: Synthesis and Structure 29**

Chapter 5 **The Role of Sulfur-Related Species in Oxygen Reduction**

Chapter 6 **Vibrational Study and Crystal Structure of Barium Cesium**

Soufiane Zerraf, Mustafa Belhabra, Aziz Kheireddine, Malika Tridane, Hicham Moutaabbid, Mohammed Moutaabbid and Said

**New Materials Development 1**

**Analysis and Characterization 9**

Ndibewu Peter Papoh

Mohamed Loukil

Chapter 4 **Thiophene S-Oxides 43** Thies Thiemann

**Reactions 81**

Belaaouad

Dan Xu and Winston Duo Wu

**Cyclotriphosphate Dihydrate 97**
