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Questions related from Vicente Martí-Centelles
Dear all, I am observing a peak at 0.08 ppm in the 1H NMR spectra CD2Cl2 (I attach a copy of the 1H NMR spectra). Does anyone had observed this before? Does anyone know what compound gives a...
09 February 2017 8,321 7 View
Dear all, I would like to ask you if your have Is it possible to buy LEDs with their wavelength emission maximum (or ideally with the full emission spectra)? I would like to use these LEDs as...
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Dear all, I would like to ask your advice to measure accurate reaction kinetics of as photochemical reaction using UV-Vis radiation. My concern is to have a constant an reproducible source...
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Dear all, I would like to ask if anyone has experience in substrates (ethynylbenzene-based compound and bromide-benzene-based compound) that do not react using standard reaction conditions...
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I have performed a Sonogashira coupling, and I would ask if anyone knows an easy method to remove triphenylphosphine from the product (the product is pure after aqueous workup and only...
11 February 2014 7,078 19 View
In the manual only Amber, Dreiding, and UFF Molecular Mechanics Methods are described. Any ideas if this is possible?
16 January 2014 8,117 2 View
In one crystal structure I had to remove the disordered solvent molecules (water) using Squeeze, then refine with sehllx97 and generate the final cif file. This was the void_content...
18 January 2013 7,221 11 View
