trans-Diaquabis(pyridazine-3-carboxylato-κ2N2,O)cobalt(II) dihydrate

Artetxe, Beñat; Reinoso, Santiago; Felices, Leire San; Martín-Caballero, Jagoba; Gutiérrez‐Zorrilla, Juan M.

doi:10.1107/s1600536813017340

Cited by 5 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The metal ion, the pyridazine ring and carboxylate atoms are coplanar. As expected, the Cu-O and Cu-N distances (Table 1) are similar to the Zn(II) and Co(II) analogue compounds (Gryz et al, 2004;Artetxe et al, 2013).…”

Section: Methodssupporting

confidence: 82%

See 1 more Smart Citation

trans-Diaquabis(pyridazine-3-carboxylato-κ²N²,O)copper(II)

Pache¹,

Iturrospe²,

Felices³

et al. 2014

Acta Cryst E

Self Cite

View full text Add to dashboard Cite

In the title compound, [Cu(C5H3N2O2)2(H2O)2], the CuII ion, located on an inversion center, exhibits an octahedral coordination geometry. The equatorial plane is defined by two trans-related N,O-bidentate pyridazine-3-carboxylate ligands and the axial positions are occupied by two water molecules. In the crystal, molecules are connected by O—H⋯O hydrogen bonds between the water molecules and the noncoordinating carboxylate O atoms, forming layers parallel to the bc plane. The layers are stacked along the a axis by further O—H⋯O hydrogen bonds between the water molecules and the coordinating carboxylate O atoms. Weak C—H⋯O hydrogen bonds are also observed between the pyridazine rings and the water molecules and between the pyridazine rings and the non-coordinating carboxylate O atoms.

show abstract

Section: Methodssupporting

confidence: 82%

“…For the isotypic zinc complex, see: Gryz et al (2004). For a related cobalt(II) complex which contains two non-coordinating water molecules, see: Artetxe et al (2013).…”

Section: Related Literaturementioning

confidence: 99%

trans-Diaquabis(pyridazine-3-carboxylato-κ²N²,O)copper(II)

Pache¹,

Iturrospe²,

Felices³

et al. 2014

Acta Cryst E

Self Cite

View full text Add to dashboard Cite

show abstract

“…This was obsered for the Co- and Ni-containing POMs in the case of pydc and only for Co 2 Sb 2 when pymc was used (Figure S4 in the Supporting Information). We previously reported the structure of Co-pydc elsewhere . The full characterization of this species, the isostructural complex Ni-pydc , and the Co-pymc complex (isostructural to the reported Zn and Ni analogues) can be found in the Supporting Information.…”

Section: Results and Discussionmentioning

confidence: 96%

Functionalization of Krebs-Type Polyoxometalates with N,O-Chelating Ligands: A Systematic Study

et al. 2014

Self Cite

View full text Add to dashboard Cite

The first organic derivatives of 3d-metal-disubstituted Krebs-type polyoxometalates have been synthesized under mild bench conditions via straightforward replacement of labile aqua ligands with N,O-chelating planar anions on either preformed or in situ-generated precursors. Nine hybrid clusters containing carboxylate derivatives of five- or six-membered aromatic N-heterocycles as antenna ligands have been obtained as pure crystalline phases and characterized by elemental and thermal analyses, infrared spectroscopy, and single-crystal X-ray diffraction. They all show the general formula [{M(II)L(H2O)}2(WO2)2(B-β-XW9O33)2](n-) and can be classified as follows: 1-SbM, where L = 1H-imidazole-4-carboxylate (imc), X = Sb(III), n = 12, and M(II) = Mn, Co, Ni, Zn; 1-TeM, where L = imc, X = Te(IV), n = 10, and M(II) = Mn, Co; 2-SbNi, where L = 1H-pyrazole-3-carboxylate (pzc), X = Sb(III), n = 12, and M(II) = Ni; and 3-SbM, where L = pyrazine-2-carboxylate (pyzc), X =Sb(III), n = 12, and M(II) = Co, Zn. The 3d-metal-disubstituted tungstotellurate(IV) skeleton of compounds 1-TeM is unprecedented in polyoxometalate chemistry. The stability of these hybrid Krebs-type species in aqueous solution has been confirmed by (1)H NMR spectroscopy performed on the diamagnetic 1-SbZn and 3-SbZn derivatives. Our systematic study of the reactivity of disubtituted Krebs-type polyoxotungstates toward diazole-, pyridine-, and diazinecarboxylates demonstrates that organic derivatization is strongly dependent on the nature of the ligand, as follows: imc displays a "universal ligand" character, as functionalization takes place regardless of the external 3d metal and heteroatom; pzc and pyzc show selectivity toward specific 3d metals; pyridazine-3-carboxylate and pyrimidine-4-carboxylate promote partial decomposition of specific precursors, leading to [M(II)L2(H2O)2] complexes; and picolinate is inert under all conditions tested.

show abstract

“…Carboxylic acids derived from diazines ( Fig. 1) due to the number of potential chelating sites can form various coordination structures in relationships with metal ions [18,19,31,32]. The pyrimidine derivatives are found in living organisms where they play a fundamental role in many life processes.…”

Section: Introductionmentioning

confidence: 99%

Thermal, spectroscopic, X-ray and theoretical studies of metal complexes (sodium, manganese, copper, nickel, cobalt and zinc) with pyrimidine-5-carboxylic and pyrimidine-2-carboxylic acids

Świderski

Świsłocka

Łyszczek

et al. 2019

J Therm Anal Calorim

View full text Add to dashboard Cite

The new 3d metal complexes of pyrimidine-2-carboxylic (2PCA) and pyrimidine-5-carboxylic (5PCA) acids were synthesized and characterized using thermal analysis (TG-DSC, TG-FTIR), X-ray, spectroscopic (IR, Raman) methods and theoretical (DFT) studies. In the complexes of pyrimidine-2-carboxylic acid of the general formula M(2PCA) 2 ÁxH 2 O (where 2PCA-pyrimidine-2-carboxylate; M = Mn(II), Co(II), Ni(II), Cu(II) and Zn; x = 0 for Mn and Cu; x = 2 for Co, Ni and Zn) coordination of metal ions occurs through nitrogen atom from pyrimidine ring and carboxylate oxygen atom. The complexes of pyrimidine-5-carboxylic acid of the general formula M(5PCA) 2 ÁxH 2 O (where 5PCA-pyrimidine-5-carboxylate; M = Mn(II), Co(II), Ni(II), Cu(II) and Zn; x = 6 for Cu and 4 for remaining complexes) were obtained as monomeric isostructural compounds. Coordination of metal centers occurs through two nitrogen atom from different pyrimidine-5-carboxylate ligand and four oxygen atoms from water molecules. The IR and Raman spectra of free acids as well as obtained metal(II) complexes were described in detail. Aromaticity (HOMA, EN, GEO and I 6) of complexes was determined and discussed. The investigated compounds decompose in air in two main stages connected with dehydration and decomposition/burning of anhydrous compounds to the suitable metal oxides. Thermal decomposition in nitrogen leads to the evolution of water, carbon oxides, ammonia and pyrimidine molecules.

show abstract

trans-Diaquabis(pyridazine-3-carboxylato-κ²N²,O)cobalt(II) dihydrate

Cited by 5 publications

References 7 publications

trans-Diaquabis(pyridazine-3-carboxylato-κ²N²,O)copper(II)

trans-Diaquabis(pyridazine-3-carboxylato-κ²N²,O)copper(II)

Functionalization of Krebs-Type Polyoxometalates with N,O-Chelating Ligands: A Systematic Study

Thermal, spectroscopic, X-ray and theoretical studies of metal complexes (sodium, manganese, copper, nickel, cobalt and zinc) with pyrimidine-5-carboxylic and pyrimidine-2-carboxylic acids

Contact Info

Product

Resources

About

trans-Diaquabis(pyridazine-3-carboxylato-κ2N2,O)cobalt(II) dihydrate

Cited by 5 publications

References 7 publications

trans-Diaquabis(pyridazine-3-carboxylato-κ2N2,O)copper(II)

trans-Diaquabis(pyridazine-3-carboxylato-κ2N2,O)copper(II)

Functionalization of Krebs-Type Polyoxometalates with N,O-Chelating Ligands: A Systematic Study

Thermal, spectroscopic, X-ray and theoretical studies of metal complexes (sodium, manganese, copper, nickel, cobalt and zinc) with pyrimidine-5-carboxylic and pyrimidine-2-carboxylic acids

Contact Info

Product

Resources

About

trans-Diaquabis(pyridazine-3-carboxylato-κ²N²,O)cobalt(II) dihydrate

trans-Diaquabis(pyridazine-3-carboxylato-κ²N²,O)copper(II)

trans-Diaquabis(pyridazine-3-carboxylato-κ²N²,O)copper(II)