Growth and Characterization of a Novel Organometallic Nonlinear Optical Crystal:  Bis(Thiourea) Cadmium Formate

Selvakumar, S.; Kumar, Surendra; Rajarajan, K.; Pragasam, A. Joseph Arul; Rajasekar, S.; Thamizharasan, K.; Sagayaraj, P.

doi:10.1021/cg060414p

Cited by 55 publications

(18 citation statements)

References 14 publications

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“…Radiative lifetime τ rad of the 4 F 9/2 luminescent level, defined as: (6) is also presented in Table S10.…”

Section: Synthesis Of the Samplesmentioning

confidence: 99%

“…Family of metal-organic framework (MOF) compounds based on formate ions has recently received a lot of attention due to their interesting and potentially useful physicochemical properties such as ferroelectricity, 1 magnetic ordering 2 (or coexistence of magnetic and electric order in the same phase known as multiferroicity 1,[3][4][5] ) and nonlinear optical properties, 6 among others. These properties may be tuned due to the huge number of possible combinations of organic cations (mainly alkylammonium cations) with metal cations and another small anions (called linkers), capable to coordinate strongly metal ions and form the network of hydrogen bonds with the ammonium and alkylammonium cations, e.g.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, structure and optical properties of two novel luminescent polar dysprosium metal–organic frameworks: [(CH₃)₂NH₂][Dy(HCOO)₄] and [N₂H₅][Dy(HCOO)₄]

et al. 2016

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We report synthesis, crystal structures, Raman, infrared, electron absorption and emission spectra of two novel luminescent MOFs, [(CH 3 ) 2 NH 2 ][Dy(HCOO) 4 ] and [N 2 H 5 ][Dy(HCOO) 4 ]. These data show that [(CH 3 ) 2 NH 2 ][Dy(HCOO) 4 ] and [N 2 H 5 ][Dy(HCOO) 4 ] crystallize in polar space groups of Pna2 1 and Pca2 1 symmetry, respectively. The polar properties of [N 2 H 5 ][Dy(HCOO) 4 ] come from the arrangement of template cations that possess internal dipole moment as well as from the symmetry of the framework. In [(CH 3 ) 2 NH 2 ][Dy(HCOO) 4 ] the Dy(III)-formate framework is centrosymmetric and polar properties of this compound arise from the arrangement of the DMA + cations. Vibrational studies reveal that position of ν(NN) band, which is very sensitive to coordination changes, is characteristic for hydrazine molecules forming onium ions. Optical studies show that both compounds exhibit emission of Dy(III) ions, in spite of full concentration of dysprosium ions in the studied compounds. Our data also show that radiative decay times, 57 µs for [(CH 3 ) 2 NH 2 ][Dy(HCOO) 4 ] and 96 µs for 2 [N 2 H 5 ][Dy(HCOO) 4 ], are very long compared to lifetimes observed in inorganic compounds. We have also preformed Judd-Ofelt analysis of the optical absorption spectrum of the hydrazinium analogue that provides information on various optical parameters such as electric-dipole oscillator strengths, Judd-Ofelt parameters Ω λ , branching ratios and spontaneous emission probabilities.

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“…Radiative lifetime τ rad of the 4 F 9/2 luminescent level, defined as: (6) is also presented in Table S10.…”

Section: Synthesis Of the Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis, structure and optical properties of two novel luminescent polar dysprosium metal–organic frameworks: [(CH₃)₂NH₂][Dy(HCOO)₄] and [N₂H₅][Dy(HCOO)₄]

et al. 2016

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“…In recent years, there are many thiourea based materials are reported with high second harmonic efficiency (SHG) than the commercial material potassium dihydrogen phosphate (KDP). The SHG efficiency of reported materials are bis(thiourea) ammonium nitrate (1.52 times > KDP) [3], bis(thiourea) cadmium formate (2 times > KDP) [20], bis(thiourea) zinc acetate (2 times > KDP) [21], bis(thiurea) zinc chloride (1.75 times > KDP) [22] and bis(thiourea) strontium chloride (BTSC) (1.54 times > KDP) [23].…”

Section: Introductionmentioning

confidence: 99%

Second and third order nonlinear optical, mechanical, surface characteristics of bis(thiourea) manganese chloride (BTMC) grown by slow cooling technique used for frequency conversion applications

Kubendiran¹,

Kumar²,

Moses³

et al. 2019

J Mater Sci: Mater Electron

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A semiorganic nonlinear optical (NLO) single crystal of bis(thiourea) manganese chloride (BTMC) is grown successfully by slow cooling technique using water as solvent at temperature 45 °C. The optically good quality crystal of BTMC was grown with dimension up to 8 × 8 × 2 mm 3 in a period of 2-3 weeks. The grown crystal crystallizes in orthorhombic crystal system which was confirmed by single crystal X-ray diffraction analysis. The various functional groups of BTMC were identified through FT-IR spectroscopic analysis. The lower cutoff wavelength of 280 nm was revealed from optical transmittance spectrum of UV. The mechanical behavior of BTMC crystal was analyzed by Vicker's microhardness study and also the various mechanical parameters were determined. Vickers micro hardness test revealed, the titular crystal belongs to harder material category. The SHG efficiency is estimated from Kurtz-Perry powder method and it found to be 0.33 times than the reference material. The dielectric behavior, photo conducting nature and surface properties have been analyzed for grown BTMC crystal. The presence of synthesized elements was confirmed by EDAX study. The third order nonlinear optical susceptibility (3) of the material is measured using Z-scan technique and it is found to be 5.1202 × 10 −14 esu.

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“…Nonlinear optics (NLO) has wide applications in the field of telecommunication and information devices [3][4][5][6][7]. Nonlinear optics gives much importance in photonics and optoelectronics technologies.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hippuric Acid on the Growth, Structural and Optical Properties of Non Linear Optical Crystals

Kumaresh¹,

Kumar²,

Sankar³

et al. 2013

IJSEA

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Non-linear optical potassium dihydrogen phosphate (KDP) and ammonium dihydrogen phosphate (ADP) single crystals with 1 mol% of hippuric acid dopant were grown from aqueous solution by employing slow evaporation technique. With appropriate dopants, the KDP and ADP crystals exhibit several desirable properties. Crystallinity of the grown crystals was studied by powder XRD analysis. The bonding structure and molecular associations were analyzed by FTIR spectroscopy. It also confirms the functional groups present in the grown crystals. UV-Vis-NIR spectral analysis was carried out to study the optical characteristics of the crystals which reveal that the cutoff wavelength for both hippuric acid doped KDP and ADP crystals is around 300 nm. Second harmonic generation (SHG) test adopting the Kurtz Perry technique revealed that the SHG efficiency has increased due to doping when compared with pure KDP and ADP crystals.

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Growth and Characterization of a Novel Organometallic Nonlinear Optical Crystal: Bis(Thiourea) Cadmium Formate

Cited by 55 publications

References 14 publications

Synthesis, structure and optical properties of two novel luminescent polar dysprosium metal–organic frameworks: [(CH₃)₂NH₂][Dy(HCOO)₄] and [N₂H₅][Dy(HCOO)₄]

Synthesis, structure and optical properties of two novel luminescent polar dysprosium metal–organic frameworks: [(CH₃)₂NH₂][Dy(HCOO)₄] and [N₂H₅][Dy(HCOO)₄]

Second and third order nonlinear optical, mechanical, surface characteristics of bis(thiourea) manganese chloride (BTMC) grown by slow cooling technique used for frequency conversion applications

Effect of Hippuric Acid on the Growth, Structural and Optical Properties of Non Linear Optical Crystals

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Growth and Characterization of a Novel Organometallic Nonlinear Optical Crystal: Bis(Thiourea) Cadmium Formate

Cited by 55 publications

References 14 publications

Synthesis, structure and optical properties of two novel luminescent polar dysprosium metal–organic frameworks: [(CH3)2NH2][Dy(HCOO)4] and [N2H5][Dy(HCOO)4]

Synthesis, structure and optical properties of two novel luminescent polar dysprosium metal–organic frameworks: [(CH3)2NH2][Dy(HCOO)4] and [N2H5][Dy(HCOO)4]

Second and third order nonlinear optical, mechanical, surface characteristics of bis(thiourea) manganese chloride (BTMC) grown by slow cooling technique used for frequency conversion applications

Effect of Hippuric Acid on the Growth, Structural and Optical Properties of Non Linear Optical Crystals

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Synthesis, structure and optical properties of two novel luminescent polar dysprosium metal–organic frameworks: [(CH₃)₂NH₂][Dy(HCOO)₄] and [N₂H₅][Dy(HCOO)₄]

Synthesis, structure and optical properties of two novel luminescent polar dysprosium metal–organic frameworks: [(CH₃)₂NH₂][Dy(HCOO)₄] and [N₂H₅][Dy(HCOO)₄]