Ac 300 mhz ft nmr spectrometer

Manufactured by Bruker

Sourced in United States

The AC 300 MHz FT-NMR spectrometer is a nuclear magnetic resonance (NMR) instrument that operates at a frequency of 300 MHz. It is designed to perform Fourier transform-based NMR spectroscopy, which is a technique used to analyze the structure and composition of chemical compounds.

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NMR spectrometer (293 citations) 300 MHz spectrometer (92 citations) AC-300 (34 citations) 300 MHz NMR spectrometer (32 citations) AC 300 spectrometer (31 citations) FT-NMR spectrometer (24 citations) AC-300 MHz spectrometer (6 citations) AC 300 MHz (4 citations) AC 300 FT-NMR spectrometer (3 citations) FT-300 MHz spectrometer (2 citations)

2 protocols using ac 300 mhz ft nmr spectrometer

Characterization of P(SMA-co-OEGMA) Copolymer

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¹H-NMR spectroscopy was implemented to confirm the chemical structure and to determine the mass composition (%wt.) of the synthesized copolymer. The spectrum was recorded using a Bruker AC 300 MHz FT-NMR spectrometer (Bruker, Billerica, MA, USA) and deuterated chloroform (CDCl₃) as the solvent. The chemical shifts are reported in parts per million (ppm) relative to tetramethylsilane (TMS) as the internal standard in CDCl₃.
¹H-NMR spectral peaks of P(SMA-co-OEGMA) copolymer (300 MHz, CDCl₃: 7.26 ppm, δ): 4.08 (peak c₂: 2H, -COOCH₂(CH₂)₁₆CH₃-), 3.89 (peak c₁: 2H, -(C=O)OCH₂CH₂O), 3.64 (peak f: 36H, -(CH₂CH₂O)₉CH₃-), 3.37 (peak g: 3H, -(CH₂CH₂O)₉CH₃-), 1.60 (peak b: 4H, -CH₂C-), 1.25 (peak f: 32H, -CH₂(CH₂)₁₆CH₃-), 0.88 (peak a: 6H, -CH₂CCH₃, peak e: 3H, -CH₂ (CH₂)₁₆CH₃-).

Chrysostomou V., Foryś A., Trzebicka B., Demetzos C, & Pispas S. (2022). Amphiphilic Copolymer-Lipid Chimeric Nanosystems as DNA Vectors. Polymers, 14(22), 4901.

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Characterization of Copolymer Structures

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¹H-NMR experiments were conducted to confirm the chemical structure and to determine the mass composition (%wt.) of the synthesized copolymers, as well as their quaternized derivatives. The measurements were operated on a Bruker AC 300 MHz FT-NMR spectrometer (Bruker, Billerica, MA, USA) using deuterium oxide (D₂O) as the deuterated solvent. Tetramethylsilane (TMS) was utilized as the internal standard and the chemical shifts of the recorded spectra are reported in parts per million (ppm).
¹H-NMR spectral peaks of P(DMAEMA-co-OEGMA) copolymers (300 MHz, D₂O, ppm): 4.16 (peak c: 2H, -OCH₂CH₂N-, 2H, -(C=O)OCH₂CH₂O), 3.66 (peak f: 4H, -(CH₂CH₂O)₁₉CH₃-), 3.35 (peak g: 3H, -(CH₂CH₂O)₁₉CH₃-), 2.74 (peak d: 2H, -OCH₂CH₂N-), 2.32 (peak e: 3H,-N(CH₃)₂), 1.91 (peak b: 2H, -CH₂C-), 0.90 (peak a: 3H, -CH₂CCH₃-).
¹H-NMR spectral peaks of P(QDMAEMA-co-OEGMA copolymers (300 MHz, D₂O, ppm): 4.54 (peak c₁: 2H, -OCH₂CH₂N-), 4.22 (peak c₂: 2H, -(C=O)OCH₂CH₂O)), 3.68 (peak f: 4H, -(CH₂CH₂O)₁₉CH₃-), 3.32 (peak e: 9H, -N(CH₃)₃) and peak g: 3H,-(CH₂CH₂O)₁₉CH₃-)), 3.05 (peak d: 2H, -OCH₂CH₂N), 2.07 (peak b: 2H, -CH₂C-), 1.05 (peak a: 3H, -CH₂CCH₃-).

Chrysostomou V., Katifelis H., Gazouli M., Dimas K., Demetzos C, & Pispas S. (2022). Hydrophilic Random Cationic Copolymers as Polyplex-Formation Vectors for DNA. Materials, 15(7), 2650.

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