Category: 201157-13-3

Prathap, S. published the artcileGrowth, optical and thermal studies on N-benzyl-2 methyl-4-nitroaniline, Related Products of catalysis-chemistry, the publication is IOP Conference Series: Materials Science and Engineering (2015), 012033/1-012033/4, database is CAplus.

In this work we present the growth, optical and thermal studies of the nonlinear organic mol. crystal, N-benzyl-2-methyl-4-nitroaniline (BNA). BNA is also a good THz electromagnetic waves emitter in 0.1 – 15 THz range. Nonlinear optical property of the crystal has been confirmed using the Kurtz powder technique and a study of its second harmonic generation efficiency in comparison with KDP has been made. Knoop hardness test was carried out and its Young’s modulus was calculated Thermal behavior of the crystal was investigated by TG-DTG analyses.

IOP Conference Series: Materials Science and Engineering published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C14H14N2O2, Related Products of catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Bunce, Richard A. published the artcileEster- and ketone-substituted (¡À)-1-alkyl-6-nitro-1,2,3,4-tetrahydroquinolines by a tandem S_NAr-Michael reaction, Safety of N-Benzyl-2-methyl-4-nitroaniline, the publication is Journal of Heterocyclic Chemistry (2010), 47(5), 1176-1182, database is CAplus.

A synthesis of ester- and ketone-substituted (¡À)-1-alkyl-6-nitro-1,2,3,4-tetrahydroquinolines was developed from 2-pentenoates and 2-penten-1-ones, resp., substituted at C(5) by a 2-fluoro-5-nitrophenyl group. The cyclization involves an S_NAr reaction followed by a Michael addition that occurs exo to the final ring. A previously reported version of this annulation proceeded by an initial endo Michael addition (acceptor became part of the final ring) followed by an S_NAr ring closure. The current reactions proceed in 82-97% yields in DMSO using primary amines that are unbranched at the ¦Á C. The synthesis of the reaction substrates as well as process optimization, mechanistic studies to elucidate the reaction chronol., and comparisons with the endo Michael variant are presented.

Journal of Heterocyclic Chemistry published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C14H14N2O2, Safety of N-Benzyl-2-methyl-4-nitroaniline.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Yadav, Sudha published the artcileNonlinear optical single crystals for terahertz generation and detection, SDS of cas: 201157-13-3, the publication is Journal of Nonlinear Optical Physics & Materials (2022), 31(2), 2230001, database is CAplus.

A review. Nonlinear optical (NLO) single crystals with high quality are the pillars for the development of new devices that fulfil the demands of society. Nowadays, NLO single crystals are very attractive for the photonic applications particularly for terahertz (THz) photonics. The reason for their popularity is that these crystals can produce very powerful and ultra wideband THz waves due to their high nonlinear susceptibility. In this review paper, we deal with the challenges and progresses in the evolution of NLO single crystals for THz wave generation and detection. Here, we review the single crystal growth that how and by which method single crystal is grown. We summarize the structures, intermol. and intramol. interactions, their properties and how they generate and detect the THz waves. Widely used single crystals at present are DAST, BNA, OH1, amino acid-based single crystals, etc.

Journal of Nonlinear Optical Physics & Materials published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C13H19Br2ClN2O, SDS of cas: 201157-13-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Huang, Chi Yen published the artcileFast-response liquid crystal lens with doping of organic N-benzyl-2-methyl-4-nitroaniline, Name: N-Benzyl-2-methyl-4-nitroaniline, the publication is Optics Express (2020), 28(7), 390001, database is CAplus and MEDLINE.

In this study, a large-aperture hole-patterned liquid crystal (LHLC) lens was prepared from a mixture of nematic liquid crystal (NLC, E7) and organic material (N-benzyl-2-methyl-4-nitroaniline, BNA). The electro-optic properties of doped and undoped samples were measured, compared, and analyzed. The doped sample exhibited a response time that was ~6 times faster than that of the undoped sample because BNA doping decreased the rotational viscosity of the NLC. BNA dopant effectively suppressed the RMS error of LHLC lens addressed at the high voltage. Furthermore, the BNA dopant revealed a considerable absorbance for short wavelengths (< 450 nm), automatically providing the LHLC lens with a blue light filtering function for ophthalmic applications.

Optics Express published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C14H14N2O2, Name: N-Benzyl-2-methyl-4-nitroaniline.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Piela, Katarzyna published the artcileLow temperature emission spectra of optically nonlinear N-benzyl-2-methyl-4-nitroaniline crystal, Recommanded Product: N-Benzyl-2-methyl-4-nitroaniline, the publication is Chemical Physics (2012), 28-32, database is CAplus.

The fluorescence and phosphorescence spectra of N-benzyl-2-methyl-4-nitroaniline (BNA) orthorhombic crystal were measured between 5 and 200 K. The fluorescence spectrum of BNA in a Shpol’skii matrix of n-heptane was also recorded at 5 K. The electronic absorption spectra parameters such as singlet and triplet state energies, dipole moments and oscillator strengths were calculated by semi-empirical and TD DFT methods. The calculated energies of singlet and triplet states and electronic transitions in the BNA mol. were compared with the exptl. results. The phosphorescence decay time was estimated to be 270 ms at 5 K. It is presumed that the disappearance of vibronic structure above 30 K observed in the fluorescence spectra is caused by the nitro group vibrations while the structured phosphorescence originates from the trap states. The role of mol. shape towards emission processes in BNA crystal in terms of structure-property relationship is discussed.

Chemical Physics published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C14H14N2O2, Recommanded Product: N-Benzyl-2-methyl-4-nitroaniline.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Kim, Deokjoong published the artcileWide-Bandgap Organic Crystals: Enhanced Optical-to-Terahertz Nonlinear Frequency Conversion at Near-Infrared Pumping, Computed Properties of 201157-13-3, the publication is Advanced Optical Materials (2020), 8(10), 1902099, database is CAplus.

Enhanced terahertz (THz) wave generation is demonstrated in nonlinear organic crystals through refractive index engineering, which improves phase matching characteristics substantially. Unlike conventional low-bandgap nonlinear organic crystals, the newly designed benzimidazolium-based HMI (2-(4-hydroxy-3-methoxystyryl)-1,3-dimethyl-1H-benzoimidazol-3-ium) chromophore possesses a relatively wide bandgap. This reduces the optical group index in the near-IR, allowing better phase matching with the generated THz waves, and leads to high optical-to-THz conversion. A unique feature of the HMI-based crystals, compared to conventional wide-bandgap aniline-based crystals, is their remarkably larger macroscopic optical nonlinearity, a one order of magnitude higher diagonal component in macroscopic nonlinear susceptibility than NPP ((1-(4-nitrophenyl)pyrrolidin-2-yl)methanol) crystals. The HMI-based crystals also exhibit much higher thermal stability, with a melting temperature T_m above 250 ¡ãC, vs. aniline-based crystals (116 ¡ãC for NPP). With pumping at the technol. important wavelength of 800 nm, the proposed HMI-based crystals boost high optical-to-THz conversion efficiency, comparable to benchmark low-bandgap quinolinium crystals with state-of-the-art macroscopic nonlinearity. This performance is due to the excellent phase matching enabled by decreasing optical group indexes in the near-IR through wide-bandgap chromophores. The proposed wide-bandgap design is a promising way to control the refractive index of various nonlinear organic materials for enhanced frequency conversion processes.

Advanced Optical Materials published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C14H14N2O2, Computed Properties of 201157-13-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Korn, D. published the artcileElectro-optic organic crystal silicon high-speed modulator, Category: catalysis-chemistry, the publication is IEEE Photonics Journal (2014), 6(2), 2700109/1-2700109/10, database is CAplus.

Silicon waveguides can be functionalized with an organic ¦Ö(2)-nonlinear cladding. This complements silicon photonics with the electro-optic (EO) effect originating from the cladding and enables functionalities such as pure phase modulation, parametric amplification, or THz-wave generation. Claddings based on a polymer matrix containing chromophores have been introduced, and their strong ¦Ö(2) nonlinearity has already been used to demonstrate ultralow power consuming modulators. However, these silicon-organic hybrid (SOH) devices inherit not only the advantageous properties; these polymer claddings require an alignment procedure called poling and must be operated well below their glass transition temperature This excludes some applications. In contrast, claddings made from organic crystals come with a different set of properties. In particular, there is no need for poling. This new class of claddings also promises stronger resilience to high temperatures, better long-term stability, and photo-chem. stability. We report on the deposition of an organic crystal cladding of N-benzyl-2-methyl-4-nitroaniline (BNA) on silicon-on-insulator (SOI) waveguides, which have a CMOS-like metal stack on top. Adhering to such an architecture, which preserves the principal advantage of using CMOS-based silicon photonic fabrication processes, permits the first demonstration of high-speed modulation at 12.5 Gbit/s in this material class, which proves the availability of the EO effect from BNA on SOI also for other applications.

IEEE Photonics Journal published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C14H14N2O2, Category: catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Minamide, Hiroaki published the artcileFrequency-agile terahertz-wave sources and applications to sensitive diagnosis of semiconductor wafers, Related Products of catalysis-chemistry, the publication is Proceedings of SPIE (2011), 80230I/1-80230I/6, database is CAplus.

We have developed ultra-widely tunable THz-wave source using organic nonlinear optical crystals such as 4- dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) and N-benzyl-2-methyl-4-nitroaniline (BNA). The THz-wave difference frequency generation using these crystals covers the ultra-widely tunable range of 0.1-40 THz with frequency agility. Collaborating with Furukawa Co. Ltd., we used the progressive, frequency-agile THz-wave source for industrial applications and produced a sensitive, non-destructive method for examining carrier-d. and elec. properties of semiconductors. This method presents novel possibilities for use in the semiconductor industry.

Proceedings of SPIE published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C14H14N2O2, Related Products of catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Piela, Katarzyna published the artcileMolecular motions contributions to optical nonlinearity of N-benzyl-2-methyl-4-nitroaniline studied by temperature-dependent FT-IR, ¹H NMR spectroscopy and DFT calculations, Computed Properties of 201157-13-3, the publication is Journal of Molecular Structure (2013), 91-97, database is CAplus.

The fourier transform IR (FT-IR) spectra of polycrystalline orthorhombic N-benzyl-2-methyl-4-nitroaniline (BNA) were recorded in the 380-4000 cm^-1 region within the 11-297 K temperature range while the ¹H NMR spin-lattice relaxation time and the second moment of ¹H NMR resonance line were measured in the 145-373 K and 80-400 K temperature range, resp. Above 80 K the Me group rotation is found to be dominant among other motions and leading to a significant reduction of the proton second moment which agrees with proposed models for the rigid structure and for the internal rotations in the BNA crystal such as Me group C₃ rotation, Ph ring rotation and trans-gauche motion of methylene group. Activation energies for the nitro and Me group rotations were exptl. estimated by FT-IR and ¹H NMR, appropriately. For comparison the potential barriers for these two group motions in BNA mol. were calculated by DFT quantum chem. methods. The role of mol. motions in the BNA crystal in the large temperature range is discussed from the point of view of its nonlinear optical properties.

Journal of Molecular Structure published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C14H14N2O2, Computed Properties of 201157-13-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Raju, Kalaivanan published the artcileSingle Crystal Growth of N-Benzyl-2-methyl-4-nitroaniline by Seeded Czochralski Pulling Technique for NLO and THz Applications, Quality Control of 201157-13-3, the publication is Crystal Research and Technology (2020), 55(4), 1900234, database is CAplus.

Single crystal of N-benzyl-2-methyl-4-nitroaniline (BNA), a potential organic nonlinear optical (NLO) material for terahertz (THz) pulse generation, is grown successfully from diffusion controlled melt environment by Czochralski pulling (Cz) technique and is reported for the first time. A solution grown crystal having habitual morphol. is used as a seed with pre-determined crystal rotations at constant melt temperature of 102°C. Unit cell structure of melt grown BNA is refined using single crystal X-ray diffraction (SCXRD) anal. and is compared with that of the solution grown one. Crystal packing with the dominance of intermol. hydrogen bonding such as C-H…O, N-H-O, and C-H…π is examined using 2D finger print (FP) plot and 3D Hirshfeld surface (HS) anal. The presence of minimal percentage of voids reflects the good stacking of mol. arrangement in the melt grown crystals when compared to the solution grown ones. Crystalline purity is confirmed by powder X-ray diffraction (PXRD) anal. Modes of vibrations of different functional groups present and wide optical transparency of the grown BNA are realized using Fourier-transform IR (FTIR) and UV-visible-near IR (UV-vis-NIR) spectroscopic analyses, resp. Thermal stability and m.p. are confirmed through differential scanning calorimetry (DSC).

Crystal Research and Technology published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C14H14N2O2, Quality Control of 201157-13-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia