Growth and characterization of a new organic NLO crystal: Guanidine acetate single crystals

Sathya, D.; Sivashankar, V.

doi:10.1016/j.ijleo.2015.08.240

Cited by 16 publications

(3 citation statements)

References 8 publications

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“…Crystal structures of a wide variety of guanidinium organic salts were accessed from the Cambridge Crystallographic Data Centre (CCDC) [34][35][36][37][38][42][43][44][45][46] and analyzed with a focus on the nature and extent of hydrogen bonding. A detailed discussion of each structure is presented in the Supplementary Information.…”

Section: Crystal Structuresmentioning

confidence: 99%

Role of Hydrogen Bonding in Phase Change Materials

Matuszek

Vijayaraghavan

Kar

et al. 2019

Crystal Growth & Design

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Phase change materials (PCMs) which melt in the temperature range of 100-230 °C, are a promising alternative for the storage of thermal energy. In this range, large amounts of energy available from solar-thermal, or other forms of renewable heat, can be stored and applied to domestic or industrial processes, or to an Organic Rankine Cycle (ORC) engine to generate electricity. The amount of energy absorbed is related to the latent heat of fusion (ΔH f) and is often connected to the extent of hydrogen bonding in the PCM. Herein, we report fundamental studies, including crystal structure and Hirshfeld surface analysis, of a family of guanidinium organic salts that exhibit high values of ΔH f , demonstrating that the presence and strength of H-bonds between ions plays a key role in this property. File list (3) download file view on ChemRxiv Manuscript.pdf (865.17 KiB) download file view on ChemRxiv Supplementary information.pdf (3.39 MiB)

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Section: Crystal Structuresmentioning

confidence: 99%

Role of Hydrogen Bonding in Phase Change Materials

Matuszek

Vijayaraghavan

Kar

et al. 2019

Crystal Growth & Design

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“…The thermal properties of the guanidinium organic salts, such as melting point, solid-solid transitions (if present), were examined using DSC (Differential Scanning Calorimetry) and the results are summarized in Table 1 and Table S2. All of the guanidinium salts studied here were solid at room temperature, with melting points ranging from 100 to 230 (± 2) °C, and with heats of fusion ranging between 75 and 190 J g -1 (± 5% [34][35][36][37][38][42][43][44][45][46] and analyzed with a focus on the nature and extent of hydrogen bonding. A detailed discussion of each structure is presented in the Supplementary Information.…”

Section: Thermal Properties Studymentioning

confidence: 99%

The Role of H-bonding in Phase Change Materials

Matuszek¹,

Vijayaraghavan²,

Kar³

et al. 2019

Preprint

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Phase change materials (PCMs) which melt in the temperature range of 100-230 °C, are a promising alternative for the storage of thermal energy. In this range, large amounts of energy available from solar-thermal, or other forms of renewable heat, can be stored and applied to domestic or industrial processes, or to an Organic Rankine Cycle (ORC) engine to generate electricity. The amount of energy absorbed is related to the latent heat of fusion (ΔH<sub>f</sub>) and is often connected to the extent of hydrogen bonding in the PCM. Herein, we report fundamental studies, including crystal structure and Hirshfeld surface analysis, of a family of guanidinium organic salts that exhibit high values of ΔH<sub>f</sub>, demonstrating that the presence and strength of H-bonds between ions plays a key role in this property.

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“…In the present study, we have developed guanidine-based organic single crystals and assessed their antibacterial activities against standard strains of pathogenic bacteria's like Bacillus subtilis and Staphylococcus aerus in order to address the antiseptic stability of guanidine derivatives. In continuation of our previous studies [5][6][7][8] in Guanidine compounds, we report here the synthesis and antibacterial activity of Guanidine derivatives which was prepared as a single crystal in the reaction of Guanidine carbonate admixture aminoacids like tartaric acid, acetic acid, maleic acid, acrylic acid and tetrafluroboric acid in absolute solvent upon low temperature solution growth technique. From that, the Guanidine tartarate (Guhtt), Guanidine acetate (GuAce), Guanidine maleate (Gumlt), Guanidine acrylate (GuAcr) and Guanidine tetrafluroborate (Gutfb) single crystals are harvested.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Activities of Guanidine Family Single Crystals against Bacillus Subtilis and Staphylococcus Aerus

2018

JCBSC

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A Guanidine derivative single crystal has been grown by simple ambient temperature gradient solution growth technique. The as grown single crystals tested against two bacterial pathogens like Bacillus subtilis, Staphylococcus aerus. The result shows that the single crystals have better resistance against the microbes. The standard antiseptic solution like kanamycin, it showed less or equal activity in pathogenic bacteria. In comparison to our currently used Guanidine derivatives single crystals, Guanidine Acetate shows better zone of inhibition against both the pathogens. But in contrast the Guanidine maleate and Guanidine Tetrafluroborate reveals lowest zone of inhibition against Bacillus subtilis and Staphylococcus aerus respectively. It can be concluded that Guanidine acetate exhibit excellent antibacterial effect and therefore, seems to be suitable as a local antiseptic agent, but further clinical studies are necessary.

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Growth and characterization of a new organic NLO crystal: Guanidine acetate single crystals

Cited by 16 publications

References 8 publications

Role of Hydrogen Bonding in Phase Change Materials

Role of Hydrogen Bonding in Phase Change Materials

The Role of H-bonding in Phase Change Materials

Antibacterial Activities of Guanidine Family Single Crystals against Bacillus Subtilis and Staphylococcus Aerus

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