Growth, structure, spectral and optical properties of semiorganic crystal: Pyridine-1-ium-2-carboxylatehydrogenbromide

Gowri, S.; Devi, T. Uma; Priya, S.; Dilip, C. Surendra; Selvanayagam, S.; Lawrence, Nina

doi:10.1016/j.saa.2015.01.083

Cited by 11 publications

(2 citation statements)

References 41 publications

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“…For some of the listed compounds, the presence of HBr molecules in the structure might be quite feasible from a chemical point of view. However, there remained still a total of 13 entries [CSD refcodes BEPQIY (Rů žička et al, 2013), EVAMIX (Cocco et al, 2004), GICSOC (Aureggi et al, 2013), KEKQAS (Wang et al, 1999), KONVEO (Lin et al, 1990), MOMVIV (Surendra Dilip & Gowri, 2014), MOMVIV01 (Gowri et al, 2015), MUFKON (Liang et al, 2002), NAVFOI01 (Zhao et al, 2017), NIJGOC (Liu et al, 1997b), SOCZUH (Banothu et al, 2014), UNESAI (Zhang & Shen, 2011) and YOTSIJ (Monte et al, 1995)], where the simultaneous presence of HBr with a basic moiety (in KEKQAS, HBr and OH À !) is proposed, with H-Br bond lengths ranging from 0.79 to 1.84 Å .…”

Section: Database Surveymentioning

confidence: 99%

HBr or not HBr? That is the question: crystal structure of 6-hydroxy-1,4-diazepane-1,4-diium dibromide redetermined

et al. 2019

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Liu et al. [Chin. J. Struct. Chem. (1996). 15, 371–373] reported the structure of 6-hydroxy-1,4-diazepane di(hydrogen bromide), C5H12N2O·2HBr, which was interpreted in terms of neutral diazepane and HBr molecules. We found, however, ample evidence that the formation of an organic salt, consisting of a diammonium cation and two bromide anions, is more plausible. This interpretation is also in agreement with thermogravimetric analysis and with the observed solution behaviour. The crystal structure of 6-hydroxy-1,4-diazepane-1,4-diium dibromide, C5H14N2O2+·2Br−, measured at 142 K, crystallized in the orthorhombic space group P212121. The structure displays O—H...Br and N—H...Br hydrogen bonding. Contact distances are given. A search in the Cambridge Structural Database for the singly-bonded H—Br moiety revealed a total of 69 structures. The question, whether these structures really include HBr as neutral molecules or rather Br− anions and a protonated substrate such as an amine, is addressed.

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Section: Database Surveymentioning

confidence: 99%

HBr or not HBr? That is the question: crystal structure of 6-hydroxy-1,4-diazepane-1,4-diium dibromide redetermined

et al. 2019

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“…It is known that the structure of these materials can be easily modified by substituting various functional groups to obtain the required optical property and therefore the more attention is towards the synthesis and development of organic NLO materials. Apart from these advantages these molecules possessing some drawbacks such as limited mechanical and thermal stability, indigent transparency, lack of robustness, low laser damage threshold, susceptible to damage during processing and difficulty in growing them as bulk crystals etc.,which inhibits the use of these materials for fabricating some technologically important devices [2][3][4]. Hence the search for new organic NLO applications with good NLO properties is a continuous field of current research.…”

Section: Introductionmentioning

confidence: 99%

Growth and Characterization of (E)-1-(5-Chlorothiophene-2-Yl)-3-(4- Dimethylamino)Phenyl)Prop-2-En-1-One, Novel NLO Single Crystal

Shruthi

Ravindrachary

Byrappa

et al. 2019

MSF

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A novel NLO compound (E)-1-(5-chlorothiophene-2-yl)-3-(4-dimethylamino) phenyl) prop-2-en-1-one has been synthesized by adopting claisen schmidt condensation reaction method and the single crystals are grown using slow solvent evaporation technique. The FT-IR spectrum confirms the various functional groups present in the compound. The crystal structure was studied by XRD method, which reveals that the compound crystallizes in Monoclinic crystal system with a space group P21/n and the corresponding lattice parameters are a = 7.595 (2) Å, b = 17.441 (4) Å, c = 10.917 (3) Å, α = 90o, β = 102.500 (12)o, γ = 90o. UV-Visible spectrum shows that the crystal is transparent in the entire visible region. Refractive index of the crystal was determined using Brewster’s angle method. Thermal stability of the material was determined from TG/DTA test. The Second harmonic generation efficiency of the crystal was estimated using NLO test and the efficiency was found to be 0.84 times that of UREA.

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Study of the synthesis, structural, vibrational and optical properties of the new compound: (C8H14N2)2TeCl6. Cl2

Mhiri

Boujelbene

2021

Polym. Bull.

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Growth, structure, spectral and optical properties of semiorganic crystal: Pyridine-1-ium-2-carboxylatehydrogenbromide

Cited by 11 publications

References 41 publications

HBr or not HBr? That is the question: crystal structure of 6-hydroxy-1,4-diazepane-1,4-diium dibromide redetermined

HBr or not HBr? That is the question: crystal structure of 6-hydroxy-1,4-diazepane-1,4-diium dibromide redetermined

Growth and Characterization of (E)-1-(5-Chlorothiophene-2-Yl)-3-(4- Dimethylamino)Phenyl)Prop-2-En-1-One, Novel NLO Single Crystal

Study of the synthesis, structural, vibrational and optical properties of the new compound: (C8H14N2)2TeCl6. Cl2

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