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Using (bis)diethoxyphosphoryl ferrocene [Fc(O＝P(OEt)2)2] and transition metal carboxylates – [M2(μ-OOCR)4(CH3CN)2], M = CuII, R = tBu, (C5H4)Mn(CO)3 (Cym) or [M3(μ-OOCR)6(CH3CN)2], M = NiII, CoII, R = Cym, a series of heterometallic polymers with metal cores {Cu2Fe}n (1), {Cu2Mn4Fe}n (2) {Ni2Mn4Fe}n (3), and {Co2Mn4Fe}n (4) were obtained under mild conditions. Compounds 1 and 2 showed antibacterial activity against a Mycobacterium smegmatis strain in vitro. [ABSTRACT FROM AUTHOR]

A series of copper(II) complexes with different anions of composition [CuPhen(Hpz)2X2] (Phen = 1,10-phenanthroline; Hpz = pyrazole; X = CF3COO− (1), Otf− (2), Cl− (3), Otf = CF3SO3) have been synthesized. The structures of all obtained complexes were determined by direct X-ray diffraction analysis. In complexes 1–3 the equatorial planes are occupied by N-donor ligands, while the axial positions belong to the anions of various acids. Crystal structures 1–3 are additionally stabilized by hydrogen bonds, the type of which depends on the nature of the anion. The stability of the complexes upon dissolution in 0.9% NaCl was confirmed by UV-vis spectroscopy. The study of the biological properties of 1–3 showed high antibacterial activity against the non-pathogenic strain of Mycolicibacterium smegmatis (MIC (minimum inhibiting concentration) = 8–10 nmol per disk). The cytotoxic effect of various concentrations of complexes 1–3 on human ovarian adenocarcinoma cells (SKOV3) and human dermal fibroblasts (HDF) was measured in vitro. All complexes exhibit high anticancer activity, exceeding the activity against healthy cells. [ABSTRACT FROM AUTHOR]

Four new frameworks were obtained by slow diffusion of a ligand solution – 1,2-bis(4-pyridyl)ethylene (dpe) into solutions of NiII and CoII furoates. It is shown that, depending on the combination of solvents used, it is possible to purposefully set the topology of the coordination polymers as a simple chain in [Co(fur)2(dpe)(CH3OH)2]n (1), 2D 4-c sql in [Co(fur)2(dpe)2]n (2)/[Ni(fur)2(dpe)2]n (3) and 3D 3-cetb in [Ni(fur)2(dpe)1.5(H2O)]n·3H2O (4) (fur− is the anion of 2-furoic acid). The simple chains extend in two different directions. The sql nets show inclined polycatenation. Compound 4 exhibits the first example of such a high degree of interpenetration as 7, which is more than three times higher than the known record for nets. All the compounds were characterized by single crystal X-ray analysis. The metal atoms in the structural fragments have a CN = 6 and are in an octahedral environment with a different ratio of N and O – ({CoO4N2} (1), {MO2N4} for M = Co (2) and Ni (3), {NiO3N3} (4)). The coordination network of 4 has accessible channels with an estimated pore volume of 4650 Å3 per unit cell (29.4%). Thermal behavior of 1, 3 and 4 was studied by simultaneous thermal analysis (STA). The obtained χT(T) dependences were approximated using the PHI software. It was shown that interweaving results in the shortening of the metal–metal magnetic interactions. [ABSTRACT FROM AUTHOR]

Backbone functionalization of the pre-coordinated, emblematic IMes ligand with the COOH moiety was achieved upon treatment of Cp(CO)2Mn(IMes) with n-BuLi followed by CO2 and HCl to afford Cp(CO)2Mn(IMesCOOH). The latter reacts with (1,10-phen)M(OAc)2 (M = Cu, Zn) to obtain M3Mn4 polymetallic complexes exhibiting the ambidentate IMesCO2− moiety as a key structural unit. [ABSTRACT FROM AUTHOR]

The reaction of phosphorylated 1,10-phenanthrolines 3-Pphen, 3,8-Pphen and 4,7-Pphen (3-Pphen = 3-diethoxyphosphorylphenanthroline, 3,8-Pphen = 3,8-bis(diethoxyphosphoryl)phenanthroline, 4,7-Pphen = 4,7-bis(diethoxyphosphoryl)phenanthroline) and hydrated copper(ii) nitrate in a 1 : 1 ratio leads to the formation of supramolecular architectures. In the 1D coordination polymer [Cu(3-Pphen)(NO3)2]n (2) the copper atom is coordinated to only one phenanthroline ligand and the coordination sphere is completed by two oxygen atoms of nitrate anions and the oxygen atom of the phosphoryl group from the neighbouring phenanthroline ligand. Complex Cu(3,8-Pphen)(NO3)2 (3) crystallizes from dichloromethane/ether in two polymorphic forms. Form 3-I is a dimeric complex in which two phenanthroline rings are parallel and offset-shifted due to the formation of two (P)O–Cu bonds. The crystals of the polymorph 3-II are composed of polymeric chains in which the coordination sphere of the metal centres and the arrangement of the mononuclear fragments are similar to those of complex 2. Complex [Cu(4,7-Pphen)(NO3)2]2 (4) crystallizes from toluene/acetonitrile and exhibits a dimeric structure which is similar to that of 3-I. [ABSTRACT FROM AUTHOR]

Backbone functionalization of the pre-coordinated, emblematic IMes ligand with the COOH moiety was achieved upon treatment of Cp(CO)2Mn(IMes) with n-BuLi followed by CO2 and HCl to afford Cp(CO)2Mn(IMes(COOH)). The latter reacts with (1,10-phen)M(OAc)2 (M = Cu, Zn) to obtain M3Mn4 polymetallic complexes exhibiting the ambidentate IMes(CO2(-)) moiety as a key structural unit.