Studies on the growth and characterization of tris (glycine) calcium(ΙΙ) dichloride—a nonlinear optical crystal

Dhanaraj, P.V.; Rajesh, N.P.

doi:10.1016/j.physb.2010.09.041

Cited by 24 publications

(13 citation statements)

References 23 publications

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“…The dielectric behavior of ferrites can be explained on the basis of dielectric polarization, which is similar to that of the conduction mechanism that takes place mainly by the hopping of electrons reported by many research groups , Iwauchi 1971, Rabkin and Novikova 1960, Anderson 1964. Present results have been found to be in good agreements with earlier reports (Iwauchi 1971, Patil et al 1991, Wagner 1913, Koops 1951, Dhanaraj and Rajesh 2011 without any signature of abnormal dielectric behavior as noticed by Haque et al (2008b). Electronic conduction in ferrites is mainly due to hopping of electron between ions of the same element existing in more than one valence state and distributed randomly over crystallographically equivalent lattice sites.…”

Section: Resultssupporting

confidence: 93%

“…It is believed that in polycrystalline ferrites there are two layers: heterogeneous conducting layer and a very high resistive layer. The conducting layer is filled with grains while the resistive layer contains large number of grain boundaries (Koops 1951, Rabkin and Novikova 1960Dhanaraj and Rajesh 2011. Dielectric properties of ferrites have been found to arise due to various types of polarization mechanisms (El Hiti 1999).…”

Section: Resultsmentioning

confidence: 99%

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Composition, Temperature and Frequency Dependent Magnetic, Dielectric and Electrical Properties of Magnesium-Zinc Ferrites

Rahman

Sheak

Pervin

et al. 2012

J Bangladesh Acad Sci

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Composition, Temperature and Frequency Dependent Magnetic, Dielectric and Electrical Properties of Magnesium-Zinc Ferrites

Rahman

Sheak

Pervin

et al. 2012

J Bangladesh Acad Sci

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“…It may be due to the increase in space charge polarization at the grain boundary interfaces. Also the low value of dielectric loss at higher frequencies discloses the good optical quality of the sample with low number of defects, which makes the crystal a diserable material for optoelectronic applications [16].…”

Section: Dielectric Studiesmentioning

confidence: 99%

Growth and characterization of hexamethylenetetramine crystals grown from solution

Babu

Chandrasekaran

Balaprabhakaran

2014

Materials Science-Poland

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Organic nonlinear optical single crystals of hexamethylenetetramine (HMT; 10 × 10 × 5 mm 3 ) were prepared by crystallization from methanol solution. The grown crystals were subjected to various characterization techniques such as single crystal XRD, powder XRD, UV-Vis and electrical studies. Single crystal XRD analysis confirmed the crystalline structure of the grown crystals. Their crystalline nature was also confirmed by powder XRD technique. The optical transmittance property was identified from UV-Vis spectrum. Dielectric measurements were performed as a function of frequency at different temperatures. DC conductivity and photoconductivity studies were also carried out for the crystal. The powder second harmonic generation efficiency (SHG) of the crystal was measured using Nd:YAG laser and the efficiency was found to be two times greater than that of potassium dihydrogen phosphate (KDP).

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“…Figure 13 Coordination geometry of [Na(NO 3 )(C 3 H 7 NO 2 )] n , showing atom-labelling scheme and 50% probability displacement ellipsoids [62] …”

Section: 同年mentioning

confidence: 99%

“…鉴于氨基酸类配体的环境友好性质, 主族金属氨基酸配合物在绿色功能材料方面已经崭露了头角, 尤其在非线性光学材料方面, 主族金属氨基酸配合物取得了可喜的成绩. 甘氨酸硫酸锂(Glycine lithium sulfate, GLS) [11] 、L-脯氨酸氯化锂一水合物(L-proline lithium chloride monohydrate, LPLCM) [12] 、二氯•三(甘氨酸)合钙 (II) [tris(glycine) calcium(II) dichloride, TGCC] [13] 都具有良好的倍频效应(second harmonic generation, SHG), 都有可能发展成为良好的非线性光学材料(nonlinear optical, NLO). 另外, 元素周期表中的一些 p 区的主族金属离子, 如铋、碲、铅、锡、锑等, 它们的 s 亚层和 p 亚层的价电子处于电子层的最外层, 与配位场相互作用强, 容易形成类似于过渡金属离子的宽带发光, 且其发光波长延伸至近红外区, 因而, 具有良好的应用前景.…”

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Advances in Crystallography of Coordination Complexes on Main Group Metals with Amino Acid Ligands

Dong¹,

Zheng²,

Zhou³

et al. 2014

Acta Chim. Sinica

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The study of main-group metal elements and their coordination complexes with amino acids is an important theme in coordination chemistry, but it has often been overshadowed by the intense interest in transition-metal coordination complexes. In recent years, there has been a growing interest in main-group compounds, extending across all members of sand p-blocks in the Period Table, which has resulted in the discovery of numerous new classes of compounds with previously unknown structures and bonding. Among these achievements, the coordination complexes of main group metals with amino acid ligands are especially notable. As a kind of functional ligand, amino acids set up a bridge of interdisciplinary subjects between coordination chemistry and biology. The research on coordination chemistry of main group metals with amino acid ligands will benefit to understanding of the biological effects of main group metals; developing new medicine; designing and synthesizing functional and environmental friendly materials. To achieve these targets, the structural information of these new coordination complexes is very important and it provides fundamental knowledge for more extensive investigation in the future. Therefore, this review focus on the single crystal structures of the coordination complexes of main group metals with amino acid ligands based on X-ray crystallography. Literature coverage is around the last 15 years and ends to May 2013 although some older works are also included for comparing. Specially, this article has been written to commemorate 2014 the International Year of Crystallography declared by United Nations.

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Studies on the growth and characterization of tris (glycine) calcium(ΙΙ) dichloride—a nonlinear optical crystal

Cited by 24 publications

References 23 publications

Composition, Temperature and Frequency Dependent Magnetic, Dielectric and Electrical Properties of Magnesium-Zinc Ferrites

Composition, Temperature and Frequency Dependent Magnetic, Dielectric and Electrical Properties of Magnesium-Zinc Ferrites

Growth and characterization of hexamethylenetetramine crystals grown from solution

Advances in Crystallography of Coordination Complexes on Main Group Metals with Amino Acid Ligands

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