Research news, Dec. 16th, 2013.
Half-sandwich Bis(propiolamidinate) Rare-earth Metal Complexes: Synthesis, Structure and Dissociation of Cyclopentadienyl Ligand via Competition with an Amidinate
Ling Xu, Yu-Chen Wang, Wen-Xiong Zhang,* and Zhenfeng Xi
Dalton Trans. 2013, 42, 16466-16469.
A comparative study on the stabilizing ability between Cp’ and amidinate in rare-earth metal complexes is investigated. Cp’ is found to dissociate from half-sandwich bis(propiolamidinate) lanthanides via competition with an propiolamidinate, which clearly show the coordinative ability of chelate amidinate is stronger than that of η5-Cp’ under the present conditions.