Interactions between 2-Aminobenzothiazole and Natural Organic Matter as Evidenced by CPMAS Nitrogen-15 NMR Spectroscopy
- Autori: Berns, AE; Conte, P; Philipp, H; Witte, EG; Lewandowski, H
- Anno di pubblicazione: 2009
- Tipologia: Articolo in rivista (Articolo in rivista)
- Parole Chiave: ABT; 2-aminobenzothiazole; CPMAS; cross-polarization magic angle spinning; HA; humic acid; HPLC; high-performance liquid chromatography; NMR; nuclear magnetic resonance.
- OA Link: http://hdl.handle.net/10447/39002
Abstract
Cross-polarization magic angle spinning (CPMAS) 15N nuclear magnetic resonance (NMR) spectroscopy was used to study the interactions between 2-aminobenzothiazole (ABT) and natural organic matter in the presence of the natural enzyme laccase and synthetic air. Through the use of synthesized model compounds, we were able to confirm previous findings by CPMAS 13C NMR spectroscopy that showed the formation of covalent amide bonds. We also provide evidence of the presence of two additional H bonds between ABT and the natural organic matter. Both H bonds involved the amino and thiazole groups of ABT.