Dpx 200 spectrometer

Manufactured by Bruker

The DPX 200 spectrometer is a nuclear magnetic resonance (NMR) instrument designed for analytical and research applications. It operates at a magnetic field strength of 4.7 Tesla, which corresponds to a proton resonance frequency of 200 MHz. The DPX 200 is capable of performing various NMR experiments, including one-dimensional and two-dimensional spectroscopy, to analyze the chemical structure and composition of samples.

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Lab products found in correlation

Silica gel 60, by Merck Group (1 mentions) Lc msd tof mass spectrometer, by Agilent Technologies (1 mentions) Lc 1100 series, by Agilent Technologies (1 mentions) Qp2010 spectrometer, by Shimadzu (1 mentions) Solvent purification system, by MBraun (1 mentions)

3 protocols using dpx 200 spectrometer

Boc-Glu(OBzl) Synthesis and Characterization

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All reagents used were commercial
products and were used without further purification unless otherwise
indicated. Boc-Glu(OBzl)–OH (Boc-l-glutamic acid 5-benzyl
ester, 15) was purchased from Sigma-Aldrich. Flash chromatography
(FC) was performed using silica gel 60 (230–400 mesh, Sigma-Aldrich). ¹H NMR spectra were obtained at 200 MHz and ¹³C
NMR spectra were recorded at 50 MHz (Bruker DPX 200 spectrometer).
Chemical shifts are reported as δ values (parts per million)
relative to remaining protons in deuterated solvent. Coupling constants
are reported in hertz. The multiplicity is defined by s (singlet),
d (doublet), t (triplet), q (quartet), p (pentet), br (broad), or
m (multiplet). HPLC analyses were performed on an Aglient LC 1100
series. High-resolution MS experiments were performed using an Agilent
Technologies LC/MSD TOF mass spectrometer.

Wu Z., Zha Z., Li G., Lieberman B.P., Choi S.R., Ploessl K, & Kung H.F. (2014). [18F](2S,4S)-4-(3-Fluoropropyl)glutamine as a Tumor Imaging Agent. Molecular Pharmaceutics, 11(11), 3852-3866.

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Physicochemical Characterization of Organic Compounds

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Melting points (m.p.) were recorded in an Electrothermal 9100 apparatus. Infrared spectra in KBr pellets were measured between 4000 and 400 cm⁻¹ (4 cm⁻¹ resolution) with and FT-IR spectrometer Thermo-Nicolet IR200. The mass spectra were measured with a CG-MS Shimadzu QP-2010 spectrometer with a HP-5 column. NMR spectra were measured at 298 K on a Bruker DPX 200 spectrometer. The compounds were dissolved in CDCl₃. Chemical shifts, δ, are given in ppm relative to TMS (δ = 0 ppm) and are referenced by using the residual undeuterated solvent signal. Coupling constants, J, are reported in Hz, multiplicities being marked as: singlet (s), doublet (d), triplet (t), double triplet (dt) of multiplet (m).

Henao Castañeda I.C., Pereañez J.A, & Preciado L.M. (2019). Synthetic Inhibitors of Snake Venom Enzymes: Thioesters Derived from 2-Sulfenyl Ethylacetate. Pharmaceuticals, 12(2), 80.

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Schlenk Synthesis and Spectroscopic Analysis

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Synthetic and spectroscopic manipulations were performed under an atmosphere of purified nitrogen, either in a Schlenk apparatus or in a glovebox. Solvents were dried and deoxygenated either by distillation under a nitrogen atmosphere from sodium benzophenone ketyl (THF) or by an MBraun GmbH solvent purification system (all other solvents). NMR data were recorded on a Bruker DPX 200 spectrometer at ambient temperature unless stated otherwise. The chemical shifts were referenced to the residual solvent signal (δ H 7.16 for benzene, 7.26 for chloroform, 3.58 ppm for α-H of THF) for the 1 H NMR spectra and the solvent signal (δ C 128.06 for benzene, 67.21 ppm for α-C of THF) for the 13

Fecker A.C., Freytag M., Jones P.G., Zhao N., Zi G, & Walter M.D. (2015). Preparation of enantiomerically pure open calcocene and strontocene complexes and their application in ring opening polymerizations of rac-lactide. Dalton transactions (Cambridge, England : 2003), 44(37).

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