Studies on Transition Metal-Quercetin Complexes Using Electrospray Ionization Tandem Mass Spectrometry
Abstract
:1. Introduction
2. Results and Discussion
2.1. Full-Scan ESI-MS Analysis of M2+/Quercetin Complexes
Metal Ion | Number of d-electrons | Metal R. | Space Configuration | CFSE(Dq) |
---|---|---|---|---|
Fe2+ | d6 | 75 pm | Octahedron | −4 |
Co2+ | d7 | 72 pm | Octahedron | −8 |
Ni2+ | d8 | 70 pm | Octahedron | −12 |
Cu2+ | d9 | 69 pm | Plane square | −12.3 |
Zn2+ | d10 | 74 pm | Tetrahedron | 0 |
2.2. Multistage Tandem Mass Spectrometry Analysis of M2+/Quercetin Complexes
Atom | Net Charge (q) | Charge Density Edge (Q) | Energy-Weighted Charge Density Edge (QR) |
---|---|---|---|
O-3 | −0.3712 | 0.0709 | −0.1814 |
O-5 | −0.3948 | 0.0018 | −0.0046 |
O-3' | −0.3708 | 0.0422 | −0.1081 |
O-4' | −0.3705 | 0.0169 | −0.0432 |
3. Experimental Section
3.1. Reagents and Chemicals
3.2. Sample Preparation
3.3. Mass Spectrometry
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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- Sample Availability: Samples are not available from the authors.
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Liu, Y.; Guo, M. Studies on Transition Metal-Quercetin Complexes Using Electrospray Ionization Tandem Mass Spectrometry. Molecules 2015, 20, 8583-8594. https://doi.org/10.3390/molecules20058583
Liu Y, Guo M. Studies on Transition Metal-Quercetin Complexes Using Electrospray Ionization Tandem Mass Spectrometry. Molecules. 2015; 20(5):8583-8594. https://doi.org/10.3390/molecules20058583
Chicago/Turabian StyleLiu, Yuanzhen, and Mingquan Guo. 2015. "Studies on Transition Metal-Quercetin Complexes Using Electrospray Ionization Tandem Mass Spectrometry" Molecules 20, no. 5: 8583-8594. https://doi.org/10.3390/molecules20058583