Avance 400 100 mhz nmr spectrometer

Manufactured by Bruker

Sourced in United States, Germany

The Avance 400/100 MHz NMR spectrometer is a laboratory instrument used for nuclear magnetic resonance (NMR) spectroscopy. It operates at a nominal frequency of 400 MHz for proton (1H) and 100 MHz for carbon-13 (13C) nuclei. The core function of the Avance 400/100 MHz NMR spectrometer is to analyze the molecular structure and composition of chemical samples through the detection and analysis of nuclear magnetic resonances.

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Lab products found in correlation

Silica gel gf254, by Qingdao Haiyang Chemical (3 mentions) Silica gel 60 f254, by Merck Group (1 mentions)

Close spelling variants of this product

Avance 400 MHz NMR spectrometer Avance 400 NMR spectrometer Avance 400 MHz spectrometer Avance 400 (400 MHz) spectrometer 400 MHz NMR spectrometer 100 MHz NMR spectrometer Avance 400 MHz 400 MHz NMR Avance NMR spectrometer Avance 400 spectrometer

2 protocols using avance 400 100 mhz nmr spectrometer

Homocoupling of Porphyrin Building Blocks

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The chemical substances utilized in the present homocoupling of PABs were purchased from Spectrochem (Mumbai, India), Alfa Aesar (Haverhill, MA, USA), Merck (Burlington, MA, USA), AVRA (Hyderabad, India), Sigma-Aldrich (St. Louis, MO, USA), and TCI (Tokyo, Japan). Porphyrins and Pd(II)-porphyrin complexes were made from literature reports [2 (link),10 (link),79 (link)]. Pyrrole was directly purified by distillation before its use. Silica gel coated thin layer chromatography (TLC) (Merck, Burlington, MA, USA, silica gel-60 F₂₅₄) was employed to confirm the progress of the self-couplings. Silica gel-packed glass-columns were employed to produce the pure symmetrical biaryls using an eluent of a mixture of EtOAc and hexanes. The Bruker Avance 400/100 MHz NMR spectrometer (Billerica, MA, USA) was employed to record the ¹H and ¹³C-NMR spectra and molecular mass was recorded with a Thermo LCQ Max LCMS (Dreieich, Germany).

Prasad S.S., Naidu B.R., Hanafiah M.M., Lakshmidevi J., Marella R.K., Lakkaboyana S.K, & Venkateswarlu K. (2021). Porphyrin N-Pincer Pd(II)-Complexes in Water: A Base-Free and Nature-Inspired Protocol for the Oxidative Self-Coupling of Potassium Aryltrifluoroborates in Open-Air. Molecules, 26(17), 5390.

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Synthesis of Substituted Phenylhydrazines

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Sesamol
(99.0%) and different substituted phenylhydrazine hydrochlorides (95.0%)
were obtained from Macklin Biochemical Inc. Analytical thin-layer
chromatography (TLC) and preparative TLC (PTLC) were performed by
silica gel plates using silica gel GF₂₅₄ (Qingdao Haiyang
Chemical Co., Ltd., Qingdao, China). Other reagents were of analytical
grade and purchased from Innochem Co., Ltd. and KeLong Chemical Reagent
Co., Ltd. Anhydrous solvents were purified and dried in terms of standard
procedures. The mps were recorded on a digital mp instrument (Beijing
Tech Instrument Co., Ltd.) and were uncorrected. IR spectra were detected
as dry films (KBr) on a PE-1710 Fourier-transform-IR spectrometer
(PerkinElmer, Waltham, MA, USA). The ¹H/¹³C
NMR data were recorded on a Bruker Avance (400/100 MHz) NMR spectrometer
(Bruker, Bremerhaven, Germany) using CDCl₃ as the solvent
and tetramethylsilane as the internal standard. In addition, compounds 2–5 were prepared using the same method as our previous
report.^{27 (link)}

Qu L., Xu H., Wang X., Huang M., Deng L, & Guo Y. (2017). Application of Sustainable Natural Bioresources in Agriculture: Iodine-Mediated Oxidative Cyclization for Metal-Free One-Pot Synthesis of N-Phenylpyrazole Sarisan Analogues as Insecticidal Agents. ACS Omega, 2(9), 5974-5980.

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