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Surface Coordination Chemistry: Corrosion Inhibition by Tetranuclear Cluster Formation of Iron with Salicylaldoxime
Author(s) -
Thorpe Jacqueline M.,
Beddoes Roy L.,
Collison David,
Garner C. David,
Helliwell Madeleine,
Holmes Jeremy M.,
Tasker Peter A.
Publication year - 1999
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19990419)38:8<1119::aid-anie1119>3.0.co;2-4
Subject(s) - chemistry , cluster (spacecraft) , corrosion , coordination complex , crystallography , inorganic chemistry , polymer chemistry , metal , organic chemistry , computer science , programming language
A tetranuclear iron cluster is the principal component of the purple coatings produced by treating a mild steel surface with a salicylaldoxime corrosion inhibitor. This was shown by comparison of the spectroscopic data with those of the cluster [{Fe(salH)(HsalH)} 4 ], which was obtained from FeCl 3 and salicylaldoxime (H 2 salH) and has a distorted tetrahedral arrangement of Fe III atoms coordinated by terminal (1−) and bridging (2−) salicylaldoximate ligands (the central core of the cluster is depicted).