pH-metric studies on some ternary complexes of lanthanones

Tripathi, Shalini; Chaturvedi, G. K.; Sharma, R. C.

doi:10.1007/bf00906345

Cited by 7 publications

(6 citation statements)

References 4 publications

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“…Shorter bond length indicated a partial double bond character along with resonance interactions within the carbonylthiourea group. The same resonance interaction was observed for S-C bond [normal S C single bond = 1.82 Å and normal S C double bond = 1.56 Å], where the bond lengths of S1 C8 for compounds I and II were 1.6755 (14) Å and 1.6880(18) Å, respectively.…”

Section: X-ray Crystal Structuressupporting

confidence: 76%

“…. O2 and the benzene ring is shown by the torsion angle C1 C6 C7 O2 value of 14 [6]. The significant difference between the experimental and theoretical values can also be seen with the C15 N3 C11 C10 and C8 N2 C9 C10 torsion angles of compound II which are due to O1W H2W1 .…”

Section: X-ray Crystal Structuresmentioning

confidence: 94%

“…Thiourea derivatives can be regarded as model compounds for different intra and intermolecular interactions involving S atoms [9,10]. The coordination chemistry of substituted thioureas has been applied to many interesting fields such as corrosion inhibitor [11][12][13][14], agricultural sector [15,16], pharmaceutical sector [17], catalyst [18][19][20], and biological sector [21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, Characterization, and Structural Investigations of 1-(3-morpholinopropyl)-3-(4-chlorobenzoyl)thiourea monohydrate and 1-(3-morpholinopropyl)-3-(4-methylbenzoyl)thiourea monohydrate

Razak

Arshad

Thanigaimani

et al. 2015

Molecular Crystals and Liquid Crystals

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2015)Synthesis, Characterization, and Structural Investigations of 1-(3-morpholinopropyl)-3-(4-chlorobenzoyl)thiourea monohydrate and 1-(3-morpholinopropyl)-3-(4-methylbenzoyl)thiourea monohydrate, Molecular Crystals and Liquid Crystals, 616:1, 151-175, Each compound contains a water molecule, forming intra and intermolecular hydrogen bonds with other molecules and further stabilizes the crystal structure. Theoretical calculations of bond parameters, harmonic vibration frequencies, and isotropic chemical shifts are in good agreement with the experimental results. The observed intermolecular interactions in the crystal packing are the main cause of the calculated torsion angles, molecular vibrations, and chemical shifts. The calculated molecular vibrations show good correlation values ranging from 0.995, 0.996, and 0.997 with the experimental data, where the higher basis set fits the experimental results better.

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Section: X-ray Crystal Structuressupporting

confidence: 76%

Section: X-ray Crystal Structuresmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Synthesis, Characterization, and Structural Investigations of 1-(3-morpholinopropyl)-3-(4-chlorobenzoyl)thiourea monohydrate and 1-(3-morpholinopropyl)-3-(4-methylbenzoyl)thiourea monohydrate

Razak

Arshad

Thanigaimani

et al. 2015

Molecular Crystals and Liquid Crystals

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“…We include the indirect production of boron via intermediate radioactive isotopes in the spallation cross sections and also account for the production of 10 B via neutron stripping of 11 B. For the annihilation cross sections on the interstellar hydrogen and helium we use [44,45].…”

Section: Propagation Parameters From a B/c Analysismentioning

confidence: 99%

AMS-02 antiprotons reloaded

Kappl¹,

Reinert²,

Winkler³

2015

J. Cosmol. Astropart. Phys.

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The AMS-02 collaboration has released preliminary data on the antiproton fraction in cosmic rays. The surprisingly hard antiproton spectrum at high rigidity has triggered speculations about a possible primary antiproton component originating from dark matter annihilations. In this note, we employ newly available AMS-02 boron to carbon data to update the secondary antiproton flux within the standard two-zone diffusion model. The new background permits a considerably better fit to the measured antiproton fraction compared to previous estimates. This is mainly a consequence of the smaller slope of the diffusion coefficient favored by the new AMS-02 boron to carbon data. arXiv:1506.04145v1 [astro-ph.HE] 12 Jun 2015 1 See also [6][7][8] for recent dark matter studies using antiprotons. 2 Secondary cosmic rays are generated by the scattering of primary cosmic rays on the interstellar matter.

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“…The experimental conditions, the instrument and method adopted for potentiometric studies were same as reported earlier [8].…”

Section: Methodsmentioning

confidence: 99%

Structural and thermal decomposition characteristics of mixed-ligand complexes of Cu(II), Ni(II), Co(II) and Zn(II)

Rajesh

Sharma

1990

Journal of Thermal Analysis

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Mixed-ligand complexes of Cu(II), Ni(II), Co(II) and Zn(II) with 8-hydroxyquinoline and thiophene-2-carboxylic acid as two different ligands, have been isolated in pure state. The formation of these complexes has been inferred potentiometrically. The isolated complexes have been characterized by their elemental analyses, IR and electronic spectra, conductivity and magnetic measurements. Solid state dehydration of the hydrated complexes and sub-'sequent decomposition of the anhydrous complexes have been studied by simultaneous DTA and TG techniques. The thermal stability order of the hydrated compounds is Cu > Co > Ni > Zn, but in the decomposition process the trend observed is Co > Zn > Ni > Cu. Some parameters like activation energy and order of reaction for each process have been computed.Antifungal antibacterial properties of some mixed-ligand complexes of transition and inner-transition metal ions have been reported [1,2] in the literature. The compounds containing nitrogen and sulphur atoms play an important role in many process of biological importance [3]. 8-hydroxyquinoline and its derivatives have long been used as potential antimicrobiol agents and drugs [4,5]. The role of mixed-ligand complexes in biological process has well recognized [6]. In the present communication, synthesis, structural and thermal decomposition characteristics of the aforesaid mixedligand chelates have been discussed with a view to study their stability behaviour.

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pH-metric studies on some ternary complexes of lanthanones

Cited by 7 publications

References 4 publications

Synthesis, Characterization, and Structural Investigations of 1-(3-morpholinopropyl)-3-(4-chlorobenzoyl)thiourea monohydrate and 1-(3-morpholinopropyl)-3-(4-methylbenzoyl)thiourea monohydrate

Synthesis, Characterization, and Structural Investigations of 1-(3-morpholinopropyl)-3-(4-chlorobenzoyl)thiourea monohydrate and 1-(3-morpholinopropyl)-3-(4-methylbenzoyl)thiourea monohydrate

AMS-02 antiprotons reloaded

Structural and thermal decomposition characteristics of mixed-ligand complexes of Cu(II), Ni(II), Co(II) and Zn(II)

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