Lists
Lists
Leech, Robin C. (1965) Infrared spectra and structures of some solid co-ordination complexes: (i) internal rotation of –CH₃ and –NH₃ groups (ii) effect of N-methyl substitution in ethylenediamine. Doctoral thesis, Sir John Cass College.
An infrared spectral study of several metal complexes has been carried out and gives evidence for the internal rotation, in the solid state, of –CH₃ and –NH₃ groups attached to an essentially planar framework. Complexes studied include diammine-diiodo palladium(II), diammine-dichloro palladium(II), trans-diammine-tetrachloro platinum(IV), tetramethyl-diiodo-digold(III), and dimethyl-iodo thallium(III). A similar study was also carried out on hexamethylbenzene, which shows similar behaviour.
The preparation and infrared spectra of a range of N,N,N',N'-tetramethyl ethylenediamine complexes are also reported. These complexes were studied to obtain information as to whether this ligand acts as a "bridging" group or as a "chelate" group. The infrared spectra of all the complexes are consistent with the ligand acting as a chelate group, in contrast to the unsubstituted ethylenediamine ligand, which can function in either way.
 |
View Item |