Angewandte Chemie International Edition · 2008 · 161 citations · 20 references
Natural SciencesChemistryComputational ChemistryInorganic ChemistryOrganic ChemistryChemical BondingCoordination ChemistryCrystal ChemistryMetal-ligand BondingTransition Metal ChemistryTransition Metal ComplexesBond LengthsBonding In Coordination CompoundsElectronic Structure Of Metal ComplexesIntermolecular Metal-ligand InteractionsLigand Electronic EffectsMetal-ligand Bond OrderMetal-ligand Bond StrengthSteric Constraints
Closer than most: A series of four dichromium bis(amidinate) complexes of the type [Cr2{μ-η2-ArNC(R)NAr}2] display an extremely short metal–metal bond of 1.74 Å, independent of the steric hindrance of the ligands. DFT calculations of CrCr bond lengths agree well with the experimental values and computational analysis of their electronic structures indicates quintuple bonding between the two Cr centers.
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Synthesis of a Stable Compound with Fivefold Bonding Between Two Chromium(I) Centers
Tailuan Nguyen, Andrew D. Sutton, M. Brynda et al. · Science · 2005 · 562 citations · Full text
M. Brynda, Laura Gagliardi, Per‐Olof Widmark et al. · Angewandte Chemie International Edition · 2006 · 322 citations · Full text