EPR and optical absorption studies of VO(II)-doped zinc Tris thiourea sulfate

Vasantha, K.; Mary, P.A. Angeli; Dhanuskodi, S.

doi:10.1016/s1386-1425(01)00535-2

Cited by 43 publications

(13 citation statements)

References 21 publications

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“…28 The presence of electronegative atom attracts all electron clouds of carbon atoms towards the oxygen and methyl atoms, which leads to deshielding of carbon atom and net result in increase in chemical shift value. The NMR shielding surfaces of C4 is shown in this work (Table.2) the chemical shift (δ) for carbon atoms presented in the Thiourea Methyl orange has been studied and theoretical 13 C, 1 H-NMR isotropic shielding of carbon and Hydrogen atom are shown. In the NMR shielding surfaces, the blue region represents shielding and red region represents de-shielding are shown in Fig.…”

Section: H Nmr Spectral Analysismentioning

confidence: 97%

“…Microhardness estimations were completed utilizing Leitz Weitzler hardness analyzer fitted with a precious stone indenter (Fig.3). The all around cleaned Methyl Orange doped ZTS precious stone was set on the stage of the Vickers small scale hardness analyzer and the heaps of various sizes were connected over an analyzer at a settled interim of time [13]. The space time was kept as 8 sec for every one of the heaps.…”

Section: Microhardness Studiesmentioning

confidence: 99%

“…Then, GIAO 13 C calculations of Thiourea Methyl orange are calculated and compared with experimental values [17] and that are shown in Table 1. Relative chemical shifts are then estimated by using the corresponding TMS shielding calculated in advance at the theoretical level as reference.…”

Section: H Nmr Spectral Analysismentioning

confidence: 99%

“…All the calculations are performed using Gauss view molecular visualization program and GAUSSIAN 09W program package. The result shows that the range 13 C NMR chemical shift of the typical organic compound usually is > 100 ppm [18], the accuracy ensures reliable interpretation of spectroscopic parameters. It is true from the above literature value in our present study, that the title compound also shows the same.…”

Section: H Nmr Spectral Analysismentioning

confidence: 99%

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HUMO-LUMO Studies on Methyl Orange Doped ZTS Crystals for Laser Applications

Suresh¹,

Kumar²,

Ambalavanan³

et al. 2018

IJERMT

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Abstract:inc Thiourea Sulphate (ZTS), crystal is a magnificent metal natural compound, which consolidates the upsides of both natural and inorganic materials when contrasted and other customary non-linear optical materials and in this way can be utilized as a part of a more extensive scope of uses. Late endeavors at delivering new recurrence transformation materials have concentrated essentially on expanding the extent of the NLO properties that can recurrence twofold low pinnacle control sources, for example, diode lasers. The thermo gravimetric examination (TGA) and differential warm investigation (DTA) were completed utilizing Seiko warm analyzer at warming rate 20°C/min in air to decide the warm dependability of the compound. ZTS crystals were developed by moderate cooling procedure. This empowers the development of mass gems along all the three bearings at an ideal pH. FTIR examines demonstrate that in the spectra of ZTS there is a move in the recurrence band in the low-recurrence district which uncovers that thiourea shapes sulfur-to-zinc securities in the ZTS crystals. The stability and charge delocalization of the molecule were also studied by natural bond orbital (NBO) analysis. The HOMO-LUMO energies describe the charge transfer takes place within the molecule. Molecular electrostatic potential has been analyzed. The developments try in extensive scale with this enhanced pH qualities is required to yield mass crystal appropriate for laser combination tests and SHG device applications.

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Section: H Nmr Spectral Analysismentioning

confidence: 97%

Section: Microhardness Studiesmentioning

confidence: 99%

Section: H Nmr Spectral Analysismentioning

confidence: 99%

Section: H Nmr Spectral Analysismentioning

confidence: 99%

See 2 more Smart Citations

HUMO-LUMO Studies on Methyl Orange Doped ZTS Crystals for Laser Applications

Suresh¹,

Kumar²,

Ambalavanan³

et al. 2018

IJERMT

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“…These data are good concurrence with reported values. [33][34][35][36][37][38] The reduction of P value from the free ion (0.0017 cm…”

mentioning

confidence: 99%

Effect of VO(II) Doping on Structural and Optical Properties of Diaquamalonato(1,10-phenanthroline)zinc(II)

Hema¹,

Parthipan²,

Ramachitra³

et al. 2013

Bulletin of the Korean Chemical Society

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Single crystal EPR and optical studies of a mixed ligand zinc(II) complex doped with VO(II) ion is carried out to establish the structural properties. The angular variation of vanadyl hyperfine lines indicates a single site, with spin Hamiltonian parameters as: g xx = 1.985, g yy = 1.979, g zz = 1.943; A xx = 8.71, A yy = 6.41 and A zz = 17.80 mT. By comparing the direction cosines of principal g and A values with the direction cosines of metalligand bonds, it has been confirmed that the vanadyl ion has entered the lattice interstitially. The exact interstitial position of VO(II) in host lattice has been calculated using the fractional coordinates of atoms in the host lattice out of many assumptions. The EPR and optical data have been confirmed to obtain various bonding parameters, from which the nature of the bonding in the complex is discussed. FT-IR confirms the formation of structure of host lattice.

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