Pyrazolate coordination continues to amaze--the new mu-eta(2):eta(1) binding mode and the first case of unidentate coordination to a rare earth metal

Angew Chem Int Ed Engl. 2002 Sep 2;41(17):3249-51. doi: 10.1002/1521-3773(20020902)41:17<3249::AID-ANIE3249>3.0.CO;2-D.
No abstract available