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分类

• {uni_hamburg} no charge; nitrogen heterocycle; aromatic; 5ring; urea; 1fragment

相关文献及参考

• Short: III/35C2 Title: Nuclear Magnetic Resonance (NMR) Data: Chemical Shifts and Coupling Constants for Hydrogen-1, Part 2: Heterocycles Author: Gupta, R.R.; Jain, M. Editor: Gupta, R.R.; Lechner, M.D. Source: Landolt-Börnstein, New Series Volume: III/35C2 Year: 2003 Keyword: chemical shift; coupling constant; molecular structure ISBN: 3-540-41057-0 ISBN: 978-3-540-41057-7 Internet Resource: DOI:10.1007/b89252 RefComment: VIII, 310 pages. With CD-ROM. Hardcover Abstract: This volume provides a comprehensive and evaluated compilation of nuclear magnetic resonance data. Chemical shifts and coupling constants of boron-11 and phosphorus-31 (subvol. A), fluorine-19 and nitrogen-15 (subvol. B), hydrogen-1 (subvol. C), and carbon-13 (subvol. D) compounds are tabulated together with the gross- and structure formulas and the most readily available solvents. Due to the large amount of the data merely chemical shifts are presented in the printed versions, and all the data, chemical shifts and coupling constants are provided on CD-ROM's.
• Short: III/35D3 Title: Nuclear Magnetic Resonance (NMR) Data: Chemical Shifts for Carbon-13, Part 3: Heterocycles Author: Gupta, R.R.; Jain, M.; Lechner, M.D.; Mikhova, B.M. Editor: Gupta, R.R.; Lechner, M.D. Source: Landolt-Börnstein, New Series Volume: III/35D3 Year: 2007 Keyword: C-13; NMR; carbon-13; chemical shifts; coupling constants; heterocycles; nuclear magnetic resonance ISBN: 978-3-540-29731-4 ISBN: 3-540-29731-6 Internet Resource: DOI: 10.1007/978-3-540-47067-0 RefComment: VIII, 342 p., 1 illus., Hardcover RefComment: Written for Science and engineers in the fields of physics, chemistry and physical chemistry who inted to use NMR to study the structure and the binding of molecules Abstract: Nuclear Magnetic Resonance (NMR) is based on the fact that certain nuclei exhibit a magnetic moment, orient by a magnetic field, and absorb characteristic frequencies in the radiofrequency part of the spectrum.