Hello!
In 2 of my metallated complexes, when I run the NMR, most of the peaks are exactly repeating again in low intensity respectively beside them. And for one complex, this happened both in ligand's nmr data and metal complex nmr data as well. And there is no impurity in the starting material if I check their nmr data. My complexes(powder form) look homogeneous all through out in color and texture.
Anyone can help me with this why?
I've attached one of the NMR file of ligand to understand observe those repetitions.
as Aleksandr A. Chamkin
has mentioned, there might be a possibility of minor isomers being formed in less quantity than the major product which have similar structures. Kindly check the TLC of your compounds in a high % EtAc or HPLC to recognize these products.
Difficult to answer without comprehensive information about the reaction... you may also consider the formation of (stereo)isomers, as suggested by Srividya Swaminathan, that form upon dissolving your material, or dissociation of the ligands from the metal, or... or... or..
Difficult to answer without comprehensive information about the reaction... you may also consider the formation of (stereo)isomers, as suggested by Srividya Swaminathan, that form upon dissolving your material, or dissociation of the ligands from the metal, or... or... or..
Difficult to answer without comprehensive information about the reaction... you may also consider the formation of (stereo)isomers, as suggested by Srividya Swaminathan, that form upon dissolving your material, or dissociation of the ligands from the metal, or... or... or..
Difficult to answer without comprehensive information about the reaction... you may also consider the formation of (stereo)isomers, as suggested by Srividya Swaminathan, that form upon dissolving your material, or dissociation of the ligands from the metal, or... or... or..
Difficult to answer without comprehensive information about the reaction... you may also consider the formation of (stereo)isomers, as suggested by Srividya Swaminathan, that form not before dissolving your material, or dissociation of the ligands from the metal, or... or... or..
Difficult to answer without comprehensive information about the reaction... you may also consider the formation of (stereo)isomers, as suggested by Srividya Swaminathan, that form not before dissolving your material, or dissociation of the ligands from the metal, or... or... or..
Sorry for endless repetition of my post, this seems to be a software problem
Thanks for the valuable answers. They don't move on TLC to find such impurities @Srividhya Swaminathan.
- Badges
- Science method
- Similar topics
- Methodology
- Crystallography
- X-ray Diffraction