Study of the structures and photophysical properties of 1,3-diaza-5-phosphacyclohexanes using density functional theory and optical spectroscopy

Russian Chemical Bulletin - The steric and electronic structures of 1,3-diaza-5-phoaphacyclohexane with the pyridyl substituent at the phosphorus atom and a series of model...     

Application of density functional theory and optical spectroscopy for the prediction of the photophysical properties of Р-pyridylphospholanes

Russian Chemical Bulletin - The spatial and electronic structure of a series of pyridyl-containing phospholanes, which are potential ligands for the synthesis of luminescent transition metal...     

Synthesis of water-soluble bis-<Emphasis Type="Italic">N</Emphasis>,<Emphasis Type="Italic">O</Emphasis>-chelate nickel(II) complexes based on new ligands – <Emphasis Type="Italic">P</Emphasis>-pyridyl-containing phospholane oxides

A series of new N,O-hybrid ligands was synthesized by oxidation of pyridyl-substituted phospholanes. These ligands were employed in the first synthesis of water-soluble mononuclear nickel(II) complexes [NiL₂(H₂O)₂](BF₄)₂ and [NiL₂(MeCN)₂](BF₄)₂. Physicochemical properties and crystalline structures of the synthesized compounds were thoroughly studied.     

Copper(II) Complexes with N,O-Hybrid Ligands based on Pyridyl-Containing Phospholane Oxides

Russian Journal of Coordination Chemistry - New water-soluble copper(II) bis-N,O-chelate complexes [Cu(L2)2Cl2] (I), [Cu2(L1)2Cl4] (II), and [Cu(L1)2Cl]2[CuCl4] (III) (L1, L2 = pyridyl-containing...     

Insight into the influence of terminal ligands on magnetic exchange coupling in a series of dimeric copper(II) acetate adducts

A combination of experimental (SQUID magnetometry) and quantum-chemical (BS-DFT, CASSCF(n,m)/NEVPT2, DDCI3) methods is used to probe the influence of terminal ligands on magnetic exchange coupling in the series of [Cu₂(μ₂-OAc)₄L₂] complexes with O-donor terminal ligands extended by two novel complexes containing phosphine oxide ligands. The possibilities and limitations of these approaches are discussed. The influence of terminal ligands on magnetic superexchange interaction was quantified by two contributions—the first contribution is associated with structural changes within the {Cu(μ₂-OAc)₄Cu} core, while the second contribution is due to the difference in the electronic influence of different terminal ligands at a given core geometry. Both contributions were found to be approximately of the same order of magnitude. These results indicate that magnetic exchange coupling, known to be highly sensitive to the distortions in core geometry, is not solely determined by the core structure. Our findings are consistent with the fact that various one- and multiparameter magnetostructural correlations reported in the literature have only a qualitative predictive capability.     

Erratum to: Copper(II) Complexes with N,O-Hybrid Ligands Based on Pyridyl-Containing Phospholane Oxides

Russian Journal of Coordination Chemistry - erratum     

Synthesis of Bis(2-Pyridylphosphino)Alkanes in Superbasic Medium and Their Hydroxymethyl Derivatives

Abstract

Novel P-H-diphosphinoalkanes with pyridyl substituents at the phosphorus atoms have been obtained in good or moderate yields by the interaction of primary 2-pyridyl-phosphine with dichloroalkanes in superbasic medium. The formation of novel 1-(2-pyridyl)-1-phosphacyclopentane together with bis(2-pyridylphosphino)butane was observed as the result of the interaction of 2-pyridylphosphine and 1,4-dichlorobutane under the same reaction conditions. The reaction of the bis(2-pyridylphosphino)alkanes thus obtained with formaldehyde leads to the formation of the corresponding hydroxymethyl derivatives.     

Copper(ii) and manganese(ii) complexes based on a new N,O-chelating ligand bearing the 1,3,5-diazaphosphorinane moiety

Russian Chemical Bulletin - Copper(ii) and manganese(ii) chelate complexes were synthesized using the new N,O-hybrid ligand 1,3-dibenzhydryl-5-(pyridin-2-yl)-1,3,5-diazaphosphinane 5-oxide. The...