Versatile binding properties of di-pyridyl ligands with Cu(II) complexes: The syntheses, structural characterization and thermal analysis of six new species

Water‐Soluble Heteronuclear [NaCuII6] Metallomacrocyclic Sandwich Complexes: Synthesis, Structure, Properties and In Vitro Biological Studies

“…The axial positions of the octahedral geometry around each copper center are occupied by a bridging alkoxo oxygen and by either an exogeneous water or hydroxo oxygen atoms. The average Cu–O bridging alkoxo , Cu–O aquo , and Cu–O hydroxo axial bond lengths are 2.423, 2.684, and 2.435 Å, respectively, which are comparable to the elongated Cu–O axial bond lengths observed in similar copper(II) complexes with Jahn–Teller distortions 52,53. Whereas the average intraligand Cu ··· Cu distance is 4.560 Å,54,55 the average interligand Cu ··· Cu distance is slightly longer at 5.171 Å.…”

Synthesis, structure, thermal, magnetic properties and quantum mechanical calculations of bridged [bis(di(2-methylpyridyl)amine)-(μ2-1,2-bis(4-pyridyl)ethane)-tetraperchlorato-dicopper(ii)] dihydrate complex

“…Separations within the range and/or larger than 8 Å were found in bis(monodentate) di-pyridyl compounds such as 4,4′-bipyridine (4,4′-bipy), 1,2-bis(4-pyridyl)ethane (bpe) and 1,3-bis(4-pyridyl)propane (bpp). 3,6,9,10,[12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] These compounds currently are employed as bridging ligands to construct new coordination materials with a wide variety of network topologies. [3][4][5][12][13][14][15][16][23][24][25][26][27] In contrast to 4,4′-bipy, bpe and bpp are flexible ligands and the latter was reported to adopt different conformations with respect to the relative orientations of its aliphatic -(CH 2 ) 3groups between the two pyridyl groups.…”

“…3,6,9,10,[12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] These compounds currently are employed as bridging ligands to construct new coordination materials with a wide variety of network topologies. [3][4][5][12][13][14][15][16][23][24][25][26][27] In contrast to 4,4′-bipy, bpe and bpp are flexible ligands and the latter was reported to adopt different conformations with respect to the relative orientations of its aliphatic -(CH 2 ) 3groups between the two pyridyl groups. As a result, the pyridyl groups in bpp can assume different conformations 28 upon coordination to give rise to quite different N⋯N distances in each type, ranging from 3.9 to 10.1 Å.…”