N-HETEROCYCLIC CARBENES;
OPENING METATHESIS POLYMERIZATION;
COORDINATION CHEMISTRY;
TRANSFER HYDROGENATION;
PALLADIUM COMPLEXES;
OLEFIN METATHESIS;
IMIDAZOLIUM SALTS;
TERMINAL ALKYNES;
WATER OXIDATION;
LIGANDS;
D O I:
10.1021/om200670f
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
A novel 1,3,4-substituted 1,2,3-triazolium salt was found to function as an effective precursor for the synthesis of the first structurally characterized cationic silver(I) and ruthenium(II) carbene complexes of overall 1:2 ligand-to-metal stoichiometry. The Ag(I) complex crystallized in the form of an eight silver atom containing cluster, whereas the Ru(II) complex proved to be a discrete species and was found to be capable of initiating the ring-opening metathesis polymerization of norbornene upon activation with (trimethylsilyl)diazomethane.