This book presents current research in the field of chemistry. Topics discussed include crystal chemistry of an atropisomer; construction and structure of metal-organic frameworks with specific ion-exchange property; chemical sensors and biosensors; non-specific chemical gas sensor arrays for environmental monitoring of odour emissions; green analytical chemistry; microwave assisted-separations; metal-catalysed electrophilic processes in ionic liquids; development of green chemistry processes for metallocomplex catalysis and the environmental impact of a lignite-fired power plant operation.