Dimeric Complexes of Co-III(cyclam) with a Polyynediyl Bridge

作者：Cook Timothy D; Natoli Sean N; Fanwick Phillip E; Ren Tong^*

来源：Organometallics, 2015, 34(4): 686-689.

DOI：10.1021/om501272p

Described in this work are the preparation and characterization of a family of polyynediyl-bridged (mu-C-2n) dimers of Co-III(cyclam)Cl (cyclam = 1,4,8,11-tetraazacycloctetradecane) for n = 2-4. The complexes are robust to ambient conditions and are prepared under mild conditions without requiring anaerobic or anhydrous environments. Voltammetric analysis revealed weak Co-Co interaction through the bridge, which is attenuated by polyyne length. The orbital origin of the Co-Co interaction has been rationalized through DFT analysis.

• 出版日期2015-2-23