849698-95-9Relevant academic research and scientific papers
Copper clusters built on bulky amidinate ligands: Spin delocalization via superexchange rather than direct metal-metal bonding
Jiang, Xuan,Bollinger, John C.,Baik, Mu-Hyun,Lee, Dongwhan
, p. 1043 - 1045 (2005)
Entry into a new class of tetra- and dicopper clusters was assisted by a fine steric tuning of bulky amidinate ligands that provide spin-delocalizing superexchange pathways in class III mixed-valence dusters, the properties of which are best understood without invoking metal-metal bonding. The Royal Society of Chemistry 2005.
How bulky is a bulky ligand: Energetic consequences of steric constraint in ligand-directed cluster assembly and disassembly
Jiang, Xuan,Bollinger, John C.,Lee, Dongwhan
, p. 15678 - 15679 (2005)
Steric tuning of N-aryl groups of homologous amidinate ligands affords discrete dimeric and tetrameric copper(I) clusters in solid state, but they undergo dynamic dimer-dimer and tetramer-dimer interconversion in solution. A delicate interplay between steric constraint and mechanical stability shapes the reaction coordinate of this process. Thermodynamic and kinetic parameters dictating such cluster assembly and disassembly immediately suggest a means to experimentally quantify energies that are associated with ligand steric bulk. Copyright
