Pyrazolate Coordination Continues To Amaze���The New<i>��</i>-<i>��</i>²:<i>��</i>¹Binding Mode and the First Case of Unidentate Coordination to a Rare Earth Metal

Abstract

New pyrazolate ligation modes continue to be uncovered: [Sc2(Ph2pz)6] (1; Ph2pz=3,5-diphenylpyrazolate) displays the new μ-η2:η1 binding mode and [Nd(η2-Me2pz)2(η1-Me2pz)(Me2pzH)2py)] (2; Me2pz=3,5-dimethylpyrazolate; py=pyridine) displays the first example of unidentate η1(N) coordination of a pyrazolate to a lanthanide ion.