A new polymorph of aquabis(1,10-phenanthroline-κ²N,N′)copper(II) dinitrate

Abstract

The title mol­ecule, [Cu(C12H8N2)2(H2O)](NO3)2, is a new polymorph of a compound which up to now has been reported to crystallize space groups in C2/c and Cc. The crystal studied was twinned by non-merohedry (final BASF factor of 0.40043) with the structure being solved and refined in P-1. The CuII atom is coordinated by four N atoms from two 1,10-phenanthroline ligands and an O atom from a water mol­ecule in an approximate trigonal–bipyramidal geometry. Discrete entities of one cation and two nitrate anions are formed by water–nitrate O—H⋯O hydrogen bonds. The components are further assembled into a three-dimensional network by C—H⋯O hydrogen bonds.

Crystal structure of aquabis(heptafluorobutanoato-κO)(1,10′-phenanthroline-κ2N,N′)copper(II)

“…The Cu-O bonds [1.942 (3) and 1.980 (3) Å ] in the quadrilateral plane are shorter than the apical position [2.173 (3) Å ]. The mean Cu-N(phen) distance of 2.043 Å and the bite angle N1-Cu1-N2 of 81.75 (12) are close to the corresponding values observed in related coppero-phenanthroline compounds (Beghidja et al, 2014;Awaleh et al, 2005). The cisoid bond angles are in the range 81.75 (12)-96.11 (11) , and transoid ones are 156.71 (11) , and 169.16 (12) exhibiting substantial deviations from 90 and 180 for a square.…”

Forty Years after the Discovery of Its Nucleolytic Activity: [Cu(phen)2]2+ Shows Unattended DNA Cleavage Activity upon Fluorination

“…However, in this case the arrangement of the ligands is better described as trigonal‐bipyramidal, with two N atoms defining the axial positions. This coordination has been observed most frequently in previously reported [Cu( phen ) 2 ] 2+ derivatives [12–15] …”

“…This coordination has been observed most frequently in previously reported [Cu(phen) 2 ] 2 + derivatives. [12][13][14][15] The Cu II complexes with fluorinated phen ligands showed remarkable changes of half-wave potentials E 1/2 depending on the substituents of their ligands (Table 1, Figure S-4). The Cu II complex with two fluorine atoms at the phen ligand was the easiest to reduce.…”

Light‐responsive and Protic Ruthenium Compounds Bearing Bathophenanthroline and Dihydroxybipyridine Ligands Achieve Nanomolar Toxicity towards Breast Cancer Cells†

“…pET20b containing a single‐strand break was prepared using the artificial nuclease [Cu(phen) 2 ] 2+ as described in the literature (52). The [Cu(phen) 2 (H 2 O)](NO 3 ) 2 used for this reaction was synthesized analogously to a literature procedure (53). All samples were loaded onto 1% agarose gels (prepared using 1X Tris‐Acetate buffer) and run at 40 V for 2 h prior to staining with a 0.5 μg mL −1 solution of ethidium bromide.…”