1-(2',4'-二硝基苯基)吡唑和1-(2',4',6'-三硝基苯基)吡唑在固态和溶液中的13C与15N核磁共振化学位移

13C and 15N NMR chemical shifts of 1-(2',4'-dinitrophenyl) and 1-(2',4',6'-trinitrophenyl) pyrazoles in the solid state and in solution.

作者信息

Angeles García M, Claramunt Rosa M, Elguero José

机构信息

Departamento de Química Orgánica y Bio-Orgánica, Facultad de Ciencias, UNED, Senda del Rey 9, E-28040 Madrid, Spain.

出版信息

Magn Reson Chem. 2008 Jul;46(7):697-700. doi: 10.1002/mrc.2219.

DOI:10.1002/mrc.2219

PMID:18383432

Abstract

The (13)C and (15)N CPMAS NMR spectra of 18 pyrazoles substituted at position 1 by dinitrophenyl and trinitrophenyl (picryl) groups have been recorded. To help in the assignments, some of these compounds were studied in DMSO-d(6) solution. Phenomena such as the conformation of the N-aryl groups and broadening of splittings due to quadrupolar nuclei are discussed.

摘要

已记录了18种在1位被二硝基苯基和三硝基苯基（苦味基）取代的吡唑的（13）C和（15）N交叉极化魔角旋转核磁共振谱。为了有助于归属，其中一些化合物在氘代二甲亚砜（DMSO-d(6)）溶液中进行了研究。讨论了诸如N-芳基的构象以及由于四极核导致的分裂变宽等现象。