Chemicals were obtained from Sigma Aldrich & Alfa Aesar (Germany), and analytical grade solvents were provided by local suppliers. Melting points (uncorrected) were measured on Griffin and George apparatus with the help of capillary tubes. The initial purity of the compound was sensed in thin-layer chromatography (TLC) by means of pre-coated silica gel Al-plates. Ethyl acetate and n-hexane were used as solvent systems (30 : 70). The spots were identified by UV254. Jasco-320-A spectrometer was used to record the IR spectra (ν, cm−1) using KBr pellet method. Bruker Advance III 600 Ascend spectrometer using a BBO probe was used for measuring the Signals in DMSO-d6 of 1H-NMR (δ, ppm) at 600 MHz and 13C-NMR at 150 MHz. For elemental analyses, the Foss Heraeus CHN-O-Rapid instrument was used and the theoretical values were within ±0.4%. Chemical shift (δ) is given in ppm and the coupling constant (J) in Hz. The different abbreviations used in the elucidation of 1H-NMR spectra are as follows: s, singlet; d, doublet; dd, doublet of doublet; t, triplet; br. t, broad triplet; q, quartet; quint., quintet; m, multiplet; dist., distorted.
Advance 3 600 ascend spectrometer
Manufactured by Bruker
The Advance III 600 Ascend spectrometer is a nuclear magnetic resonance (NMR) instrument designed and manufactured by Bruker. The core function of this spectrometer is to perform high-resolution NMR spectroscopy, a technique used for the structural analysis and identification of chemical compounds.
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Lab products found in correlation
4 protocols using advance 3 600 ascend spectrometer
1
Characterization of Organic Compounds
2
Synthesis and Characterization of Organic Compounds
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All the reagents were purchased from Sigma Aldrich and Alfa Aesar (Germany). Analytical grade solvents were delivered by local suppliers. Melting points were measured on Griffin and George apparatus by using capillary tubes and were found uncorrected. Initial purity of compound was documented by pre-coated silica gel aluminum plates in thin layer chromatography (TLC). Ethyl acetate and n-hexane were used as solvent system in ratio (30 : 70). The spots were recognized by UV254. IR peaks were documented on a Jasco-320-A spectrometer by using KBr pellet method. By using BBO probe in Bruker Advance III 600 As-cend spectrometer, signals were recorded in DMSO-d6 of 1H-NMR (δ, ppm) at 600 MHz and 13C-NMR at 150 MHz. Foss Heraeus CHN–O-rapid instrument was used for elemental analyses and theoretical values were within ±0.4%. Spectra of EI-MS was obtained by JEOL JMS-600H instrument with data processing system. Value of chemical shift (δ) is given in ppm and coupling constant (J) in Hz.
3
Spectroscopic Characterization of Organic Compounds
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All the chemicals, along
with analytical-grade solvents, were purchased from Sigma Aldrich,
Alfa Aesar (Germany), or Merck through local suppliers. Precoated
silica gel Al plates were used for TLC with ethyl acetate and n-hexane as a solvent system. Spots were detected by UV254. A Gallenkamp apparatus was used to detect melting points
in capillary tubes. IR spectra (ν, cm–1) were
recorded by the KBr pellet method in a Jasco-320-A spectrometer. 1H NMR spectra (δ, ppm) were recorded at 600 MHz (13C NMR spectra, at 150 MHz) in DMSO-d6 using a Bruker Advance III 600 Ascend spectrometer using
a BBO probe. The electron ionization mass (EI-MS) spectra were measured
on a JEOL JMS-600H instrument with a data processing system.
with analytical-grade solvents, were purchased from Sigma Aldrich,
Alfa Aesar (Germany), or Merck through local suppliers. Precoated
silica gel Al plates were used for TLC with ethyl acetate and n-hexane as a solvent system. Spots were detected by UV254. A Gallenkamp apparatus was used to detect melting points
in capillary tubes. IR spectra (ν, cm–1) were
recorded by the KBr pellet method in a Jasco-320-A spectrometer. 1H NMR spectra (δ, ppm) were recorded at 600 MHz (13C NMR spectra, at 150 MHz) in DMSO-d6 using a Bruker Advance III 600 Ascend spectrometer using
a BBO probe. The electron ionization mass (EI-MS) spectra were measured
on a JEOL JMS-600H instrument with a data processing system.
4
Structural Characterization of Compounds
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All the chemicals, along with analytical grade solvents, were purchased from Sigma Aldrich, Alfa Aesar (Germany), or Merck, through local suppliers. Pre-coated silica gel Al-plates were used for TLC with ethyl acetate and n-hexane as solvent systems. Spots were detected by UV254. Gallonkamp apparatus was used to detect melting points in capillary tubes. Infrared (IR) spectra (ν, cm−1) were recorded by the pellet method using a Jasco-320-A spectrophotometer. Elemental analyses were performed on a Foss Heraeus CHN-O-Rapid instrument and were within ±0.4% of the theoretical values. Electron Impact Mass Spectrometry (EI-MS) spectra were measured on a JEOL JMS-600H instrument with a data processing system. Proton Nuclear Magnetic Resonance (1H-NMR) spectra (δ, ppm) were recorded at 600 MHz [Carbon Nuclear Magnetic Resonance (13C-NMR) spectra, at 150 MHz] in DMSO-d6 using a Bruker Advance III 600 Ascend spectrometer with a BBO probe. The 1H-NMR spectral peaks for interpretation are abbreviated as follows: s, singlet; d, doublet; dd, doublet of doublets; t, triplet; br.t, broad triplet; q, quartet; quint, quintet; sex, sextet; sep, septet; m, multiplet, dist, distorted. The structural characterization of all compounds is given in the ESI.†
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