Starting materials and reagents were purchased from Sigma – Aldrich or Acros Organics. Melting points were recorded on Gallen Kamp apparatus and were uncorrected. FT-IR spectra were recorded on a Shimadzu IR 435 spectrophotometer. 1HNMR spectra were recorded in δ scale given in ppm on a Varian 400 MHz spectrophotometer or a Varian 300 MHz spectrophotometer. Coupling patterns are described as follows: s, singlet; d, doublet, dd, doubled doublet; t, triplet; m, multiplet. J describes a coupling constant. The coupling constants were rounded off to one decimal place. MS spectra mass were recorded on Hewlett Packard 5988 spectrometer (70 eV). Elemental analyses were performed at the Microanalytical Center, Al-Azhar University. Compounds 1a–c 21 , 2a,b 32 and 3a,b 33 , 9 and 10 34 were prepared following reported procedures.
400 mhz spectrophotometer
Manufactured by Agilent Technologies
The 400 MHz spectrophotometer is a laboratory instrument designed to measure the absorption and transmission of light by a sample. It operates at a frequency of 400 MHz and is capable of analyzing the spectral properties of various materials.
Automatically generated - may contain errors
3 protocols using 400 mhz spectrophotometer
1
Synthesis and Characterization of Novel Organic Compounds
2
Characterization of Organic Compounds
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
1H NMR spectra of all products were recorded on a Varian
400 MHz spectrophotometer. Samples (5–10 mg) were dissolved
in DMSO-d6, which was also used as the
internal reference. Fourier-transform infrared (FT-IR) absorbance
spectra were measured on a Thermo Nicolet/Avatar 360 FT-IR spectrometer.
Samples (1 wt %) were ground with KBr and pressed into a disc. Each
spectrum was an average of 32 scans. Elemental analyses were performed
by QTI (Whitehouse, NJ).
400 MHz spectrophotometer. Samples (5–10 mg) were dissolved
in DMSO-d6, which was also used as the
internal reference. Fourier-transform infrared (FT-IR) absorbance
spectra were measured on a Thermo Nicolet/Avatar 360 FT-IR spectrometer.
Samples (1 wt %) were ground with KBr and pressed into a disc. Each
spectrum was an average of 32 scans. Elemental analyses were performed
by QTI (Whitehouse, NJ).
3
Synthesis and Characterization of Novel Organic Compounds
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Starting materials and reagents were purchased from Sigma-Aldrich or Acros Organics. Melting points were recorded on Gallen Kamp apparatus and were uncorrected. FT-IR spectra were recorded on a Shimadzu IR 435 spectrophotometer. 1H-NMR spectra were recorded in δ scale given in ppm on a Varian 400 MHz, spectrophotometer. Coupling patterns are described as follows: s, singlet; d, doublet, dd, doubled doublet; t, triplet; m, multiplet. J describes a coupling constant. The coupling constants were rounded off to one decimal place. MS spectra mass were recorded on Hewlett Packard 5988 spectrometer (70 eV). Elemental analysis was performed at the Microanalytical Center, Al-Azhar University.
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!