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Cover Picture: Applications of Transition‐Metal Catalysts to Textile and Wood‐Pulp Bleaching (Angew. Chem. Int. Ed. 2/2006)
Author(s) -
Hage Ronald,
Lienke Achim
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200690004
Subject(s) - pulp (tooth) , lignin , catalysis , transition metal , pulp and paper industry , chemistry , textile , papermaking , metal , materials science , organic chemistry , composite material , engineering , dentistry , medicine
Bleaching catalysts accelerate the removal of a variety of unwanted chromophores present in stains or wood pulp. The cover picture shows the structures of lignin residues from wood pulp and of lycopene which is found in tomato stains. Peroxo–metal and oxo–metal species are proposed as intermediates in the various catalytic cycles. In their Review on page 206 ff. R. Hage and A. Lienke show that a large variety of transition‐metal complexes enhance the activity of H 2 O 2 or O 2 towards stain or wood‐pulp bleaching.