Currently,several types of 2D-NMR spectra are routinely measured.Such 2D-NMR spectral data should be applied to a structure elucidation system. The system that we have developed, SimCOSY (Sim ulation of COSY spectra), is for prediction of not only 'H—NMR but a]so H—H COSY spectra ...
3、例如,以下现有技术不使用谱图中诸如峰多重性的信息,并因此无法反映详细的结构信息,这导致无法得出准确的分子结构估计结果。 4、a structure elucidation system based on1h nmr and h-h cosy spectra inorganic chemistry,hideyuki masui and huixiao hong,j.chem.inf.model.2006,46,2, 技术实现思路 1、技术...
百度试题 题目In 1H-1H COSY and NOESY, both dimensions correspond to the proton NMR spectra. 相关知识点: 试题来源: 解析 正确 反馈 收藏
3) 1H 1H COSY ~1H-~1HCOSY4) COSY COSY 1. ELIMINATION OF RADIATION DAMPING RELATED ARTIFACTS IN 2D COSY AND MQSY NMR SPECTRA USING TPPI TECHNIQUE; 用TPPI方法消除2D COSY和MQSY实验中与辐射阻尼有关的谐波峰(英文) 2. Function monomer N, N-dimethyl, N-butyl,N-methacrylolozylethyl ...
Both the it- and st-oligomers were found to take the extended, all trans conformation in solution, from the observed patterns of the 4JHH long-range correlation peaks in the 1H COSY spectra. The 13C-T1 values of the it-hexamer were larger than those of the st-hexamer for any carbon ...
Further improvements in signal-to-noise ratio were realized by collecting P.E.COSY spectra in strips, using an experiment referred to as stripe-COSY, employing selective excitation pulses which reduced the number of requiredtincrements by a factor of four. A final improvement was achieved by ...
The 1H and 13C NMR signals of derivatives of 79<2004T4151> and 96 <2000EJO3489> were assigned based on 1D and 2D NMR spectroscopy comprising distortionless enhancement by polarization transfer (DEPT), 1H-1H-COSY (COSY – correlation spectroscopy), heteronuclear multiple quantum correlation (HMQC...
APPLICATION OF PHASE SENSITIVE TWO-DIMENSIONAL CORRELATED SPECTROSCOPY (COSY) FOR MEASUREMENTS OF 1H-1H SPIN-SPIN COUPLING CONSTANTS IN PROTEINS Two-dimensional correlated spectroscopy (COSY)is used for measurements of proton-proton spin-spin coupling constants in protein1HNMR spectra. High digital resolut...
dimensional homo- and heteronuclear NMR spectra (2D1H J-resolved,1H COSY,1H–13C HSQC, and HMBC) and comparison with the literature data2,10,11,16,35. Multivariate statistical analysis For chemometric studies, NMR spectra were segmented, into histograms, with a fixed base width of 0.04 ppm ...
4) ~1H-~1H COSY ~1H-~1H COSY 5) 1H-1H COSYLR ~1H一~1H COSYLR 6) 1H NMR 1H NMR 1. ~1H NMRStudies on Complex NMA-H_2O Association System; 复杂缔合体系NMA-H_2O的~1H NMR研究 参考词条 ~1H-~1HCOSY~1H MAS1H-茚1H 1H二维相关谱~1H NMR技术1H NMR谱1H茚1酮1H和13C NMR1H和23...