Butadiene as a ligand in open sandwich compounds?
Physical Chemistry Chemical Physics Pub Date: 2018-01-24 DOI: 10.1039/C7CP07379H
Abstract
Theoretical methods show that the lowest energy bis(butadiene)metal structures (C4H6)2M (M = Ti to Ni) have a perpendicular relative orientation of the two butadiene ligands corresponding to a tetrahedral coordination of the central metal atom to the four C![[double bond, length as m-dash]](https://www.rsc.org/images/entities/char_e001.gif)
C double bonds of the butadiene ligands. Distribution of the metal d electrons in the resulting tetrahedral ligand field rationalizes the predicted spin states increasing monotonically from singlet to quartet from nickel to manganese and back from quartet to singlet from manganese to titanium.
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Journal Name：Physical Chemistry Chemical Physics
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