Azolium-Linked Cyclophanes: Effects of Structure, Solvent, and Counteranions on Solution Conformation Behavior
作者:Murray V. Baker、David H. Brown、Charles H. Heath、Brian W. Skelton、Allan H. White、Charlotte C. Williams
DOI:10.1021/jo801860d
日期:2008.12.5
of some xylyl-linked imidazolium and benzimidazolium cyclophanes decorated with alkyl or alkoxy groups. The addition of alkyl/alkoxy chains to the cyclophanes allows for studies in chlorinated solvents, whereas previous solution studies of azolium cyclophanes have generally required highly polar solvents. The azolium cyclophanes may exist in a syn/syn conformation (azolium rings mutually syn, arene rings
Palladium, rhodium and platinum complexes of ortho-xylyl-linked bis-N-heterocyclic carbenes: Synthesis, structure and catalytic activity
作者:Murray V. Baker、David H. Brown、Peter V. Simpson、Brian W. Skelton、Allan H. White、Charlotte C. Williams
DOI:10.1016/j.jorganchem.2006.09.037
日期:2006.12
New Pd(II), Pt(II) and Rh(I) N-heterocycliccarbene (NHC) complexes containing two NHC units linked by an ortho-xylyl group are described and structurally and spectroscopically characterised. The Pt(II) complexes represent the first examples of Pt-bis(NHC) complexes where the NHC units are linked by an ortho-xylyl group. Functionalisation of the bis(NHC) ligands with heptyl groups has been used as