Functionalisation of terpyridine complexes containing the Re(CO)3(+) moiety.
The investigation into the substitution and addition chemistry of Re(sigma(2)-terpy)(CO)(3)Cl shows that the chloride in Re(sigma(2)-terpy)(CO)(3)Cl (1) may be substituted for acetonitrile to give [Re(sigma(2)-terpy)(CO)(3)(CH(3)CN)][PF(6)] (2), but in the cationic complex [Re(sigma(2)-terpyMe)(CO)(3)Cl][PF(6)] (4), where the pendant pyridine has been methylated, substitution of the chloride could not be achieved using standard conditions. However, use of [Re(sigma(2)-terpyMe)(CO)(3)I][PF(6)] (3) results in the formation of [Re(sigma(2)-terpyMe)(CO)(3)(CH(3)CN)][PF(6)](2) (5). The acetonitrile ligand in complex 2 was found to be labile and could be substituted by pyridine donors.
Amoroso
Angelo J
AJ
School of Chemistry, Cardiff University, PO Box 912, Cardiff, UKCF10 3AT. amorosoaj@cf.ac.uk
Banu
Afrosa
A
Coogan
Michael P
MP
Edwards
Peter G
PG
Hossain
Golzar
G
Malik
K M Abdul
KM
D018360:Crystallography, X-Ray; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D011725:Pyridines / Q000737:chemistry*; D012211:Rhenium / Q000737:chemistry*; D013237:Stereoisomerism
D009942:Organometallic Compounds; D011725:Pyridines; D012211:Rhenium