Molecular and electronic structure of .mu.-nitrogen-decaamminediruthenium(II)

A Photochemical Activation Scheme of Inert Dinitrogen by Dinuclear RuII and FeII Complexes

“…This idea of utilizing p* orbitals of the N 2 moiety is straightforward and has therefore been suggested earlier in the literature; [31] certain bands in the electronic spectra of various dinitrogen complexes could indeed be assigned to transitions into p* orbitals (in an idealized, qualitative quantum chemical one-particle picture). [32][33][34] However, it is by far less clear whether the occupation of a p*-antibonding molecular orbital can then produce a diazene-like conformation with N 2 possessing a double bond and two lone pairs at the nitrogen atoms as depicted in Figure 1.…”

Chemistry of some ruthenium phenolates: synthesis, structure and redox properties

“…The Ru N bonds are significantly shorter than usually observed [15,16,18]. Such a short Ru N distance is known to result only from very strong p-interaction [52]. The Ru O bonds are longer than usually observed [21,45].…”

trans-Bis(dinitrogen)-bis-[1,2-bis(diphenylphosphino)ethane]molybdenum(0)

“…Elongation of the N-N distance is explained by back donation of electrons from the metal non-bonding d orbitals into the anti-bonding ln2-orbital of dinitrogen (Chatt & Richards, 1971). The N-N bond elongations are also observed in other dinitrogen complexes (Bottomley & Nyburg, 1968;Davis & Ibers, 1970;Davis, Payne & Ibers, 1969;Ferguson, Lover & Robinson, 1972;Treitel, Flood, Marsh & Gray, 1969). The P-C bond distances, average 1-847 A, are a little longer than those of the uncomplexed triphenylphosphine molecule (1.828 A; Daly, 1964).…”