Chemistry of Ruthenium Polypyridine Complexes: V. Electronic Structure of Ruthenium(II) Bipyridine-Diphosphine Mixed-Ligand Complexes |
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Authors: | Sizova O V Ivanova N V Ershov A Yu |
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Institution: | (1) St. Petersburg State University, St. Petersburg, Russia |
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Abstract: | Comparative analysis of the donor-acceptor capacities of diphosphine ligands in two series of complexes: cis-Ru(bpy)2(LL)]q
+ LL = 2,2'-bipyridine (bpy), o-benzoquinonediimine (bqdi), cis-1,2-bis(diphenylphosphino)ethane, cis-1,2-bis(diphenylphosphino)ethylene (dppen), (NH3)2, and (CO)2] and Ru(NH3)4. (LL)]2
+ (LL = bpy, dppen, and bqdi), was performed. Diphosphines are the strongest donors; they compare in -acceptor capacity which is associated with phosphorus d orbitals with 2,2'-bipyridine and fall far short of o-benzoquinonediimine and carbonyl. |
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