1. The Charge Transfer Approach to Heavier Main-Group Element Radicals in Transition-Metal Complexes.
- Author
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Tan, Gengwen, Li, Jing, Zhang, Li, Chen, Chao, Zhao, Yue, Wang, Xinping, Song, You, Zhang, Yi‐Quan, and Driess, Matthias
- Subjects
CHARGE transfer ,RADICALS (Chemistry) ,TRANSITION metal complexes ,COMPUTATIONAL chemistry ,GROUND state (Quantum mechanics) - Abstract
The Co
II and FeII complexes 1Co and 1Fe with a coordinated phosphorus radical were easily obtained through a charge-transfer approach from the MI precursors LMI (tol) (M=Co, Fe; L=CH(MeC=NDipp)2 , Dipp=2,6- iPr2 C6 H3 ) to the diazafluorenylidene-substituted phosphaalkene 1. Structural, magnetic, and computational studies on 1Co and 1Fe indicate a weak antiferromagnetic interaction between the high-spin MII ion and the phosphorus radical, resulting in a triplet and quartet ground state, respectively. Complexes 1Co and 1Fe are the first examples of phosphorus-radical-coordinated transition-metal complexes synthesized by charge transfer, providing a new approach to access radicals of heavier main-group elements. [ABSTRACT FROM AUTHOR]- Published
- 2017
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