Collect. Czech. Chem. Commun. 2007, 72, 569-578

Protonation of the Sulfonamido Ligands in Their Fe(CO)2Cp Complexes

Maria Makowskaa, Janusz Zakrzewskia,* and Agnieszka Rybarczyk-Pirekb

a Department of Organic Chemistry, University of Łódź, Narutowicza 68, 90-136 Łódź, Poland
b Department of Crystallography, University of Łódź, Pomorska 149/153, 90-136 Łódź, Poland


[Fe(CO)2Cp(4-RC6H4SO2NH)] complexes (R = Me, NO2) undergo reversible protonation at the nitrogen atom bonded to the iron centre. The molecular structure of the methyl complex was determined by single crystal X-ray diffraction.

Keywords: Cyclopentadienyl ligands; Iron carbonyl complexes; Sulfonamides; Protonation; X-Ray diffraction; Basicity.

References: 19 live references.