2,2′-[(Propane-1,3-diyldinitrilo)bis(phenylmethylidyne)]diphenol

Black, Robert S.; Billing, David G.; Bartyzel, Agata; Cukrowska, Ewa

doi:10.1107/s1600536810011189

Cited by 3 publications

(4 citation statements)

References 14 publications

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“…The Schiff base ligands were synthesized (Scheme 1) using a similar method described in previous papers [1,[25][26][27]. Mixtures of 10 mmol of appropriate ketone and 5 mmol of diamine in 40 mL of methanol were refluxed for 2 h. The excess of the solvent (ca.…”

Section: Preparation Of Schiff Basesmentioning

confidence: 99%

Synthesis, thermal behaviour and some properties of CuII complexes with N,O-donor Schiff bases

Bartyzel

2017

J Therm Anal Calorim

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The complexes of N 2 O 2 -, N 2 O 3 -and N 2 O 5 -donors Schiff bases with Cu II ions in the methanol solution have been synthesized. They were characterized by elemental analysis, X-ray crystallographic techniques, spectroscopic (UV-Vis, IR) and thermal (TG, TG-FTIR) methods. The catalytic activity of the prepared complexes for the hydrogen peroxide-assisted degradation of methylene blue (MB) as the model compound in water was also investigated. The complexes were obtained as crystalline solids. Depending on the Schiff bases and the molar ratio of Cu II :ligand used in the synthesis, they can form monomeric or dimeric structures. The coordination environment around the metal centre in both solution and solid states is a slightly distorted square-planar. The values of magnetic moments determined at room temperature show the existence of antiferromagnetic interactions. The complexes are stable at ambient temperature. After heating, at first solvates lose solvent molecules; after that, an organic part undergoes gradual defragmentation and combustion. Degradation efficiency of MB in the presence of complexes was found to be 68.18-97.47%. A tentative mechanism involving HOÁ radical as an oxidant for degradation of MB was proposed.

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Section: Preparation Of Schiff Basesmentioning

confidence: 99%

Synthesis, thermal behaviour and some properties of CuII complexes with N,O-donor Schiff bases

Bartyzel

2017

J Therm Anal Calorim

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“…1,3-propanediamine (1,3-PDA), 2,4-hydroxybenzophenone (K), acetates: Cu(CH 3 COO) 2 The Schiff base ligand was synthesized (Scheme 1) using a similar method described in previous papers [8,21,22]. Mixtures of 10 mmol of 2,4-dihydroxybenzophenone and 5 mmol of 1,3-propanediamine in 40 mL of methanol or ethanol were refluxed for 2 h. The excess of the solvents (ca.…”

Section: Experimental Materialsmentioning

confidence: 99%

Synthesis, thermal study and some properties of N2O4—donor Schiff base and its Mn(III), Co(II), Ni(II), Cu(II) and Zn(II) complexes

Bartyzel

2016

J Therm Anal Calorim

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The new hexadentate N 2 O 4 Schiff base ligand from condensation of 2,4-hydroxybenzophenone and 1,3-propanediamine has been prepared in methanol and ethanol solutions. The Schiff base synthesized from EtOH contains half molecule of amine per one molecule of ligand in its structure. The complexes were synthesized from the direct reaction of this ligand and Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) acetates. The Schiff base and its complexes were characterized by elemental analysis, X-ray crystallographic techniques, spectroscopic (UV-Vis, IR) and thermal (TG, TG-FTIR) methods, molar conductance and magnetic measurements. The complexes, except for Ni(II) compound, similar to the Schiff base are amorphous solids. The Ni(II) complex crystallizes in the monoclinic space group P2 1 /c. The N 2 O 2 coordination geometry around nickel(II) is slightly tetrahedrally distorted square planar. Variable temperature magnetic studies of the paramagnetic complexes show the existence of weak antiferromagnetic [for complexes of manganese(III) and cobalt(II)] and weak ferromagnetic [for copper(II)] interactions. The complexes are stable at ambient temperature. After heating at first they lose solvent molecules (water or methanol), and after that organic part undergoes defragmentation and combustion. Based on the obtained data from the TG-FTIR analysis, the main gaseous products resulting from thermal degradation in nitrogen atmosphere are CO 2 , CO, NH 3 , acetic acid, methane, C 6 H 6 , C 6 H 5 CN and C 6 H 5 CH 3 .

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“…This causes the dihedral angles between the adjacent phenyl rings and phenyl containing plains to be (C1-C6-C7-C8) 89.8 (2)° and (C17-C22-C23-C24) 87.8 (2)° respectively. These dihedral angles are comparable to (Corden et al, 1996) and (Black et al, 2010). The stereogenic centre on the methyl substituted carbon C15 allows the system to pack in the noncentrosymmetric space group C2.…”

Section: C1-c6-c7-c8mentioning

confidence: 82%

“…The molecular structure of the title compound form two strong intermolecular hydrogen bonds O-H•••N involving the hydroxyl and the imine groups, forming S(6) ring motifs which are common to this type of compound (Schilf et al, 2007) and (Fernández-G et al, 2001), and also seen in the work completed by (Kabak et al, 2003), (Wojciechowski et al, 2001), (Dey et al, 2001), (Koşar, et al, 2004), (Lu, et al, 2008) (Qiu & Zhao, 2008), (Montazerozohori et al, 2009, (Corden et al, 1996) and (Black et al, 2010). This causes the dihedral angles between the adjacent phenyl rings and phenyl containing plains to be (C1-C6-C7-C8) 89.8 (2)° and (C17-C22-C23-C24) 87.8 (2)° respectively.…”

Section: C1-c6-c7-c8mentioning

confidence: 91%