内容提示: Amide II and Amide III Bands in Polyurethane Model Soft and Hard Segments Chunxia Zhang 1 , Zhiyong Ren 2 ( ), Zhigang Yin 1 , Hengyu Qian 1 , Dezhu Ma 2 1 School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China 2...
Amide II and III bands in polyurethane (PU) have been often taken as two of the characteristic bands indicating the formation of urethane structure. Since these bands, however, are very complicated, further studies, especially the effect of H-bonds on amide II and III bands in PU, were sel...
structure as significant differences in hydrogen-deuterium exchange was seen by monitoring the intensity of the residual amide II band as a function of time... S Abbas - European Conference on the Spectroscopy of Biological Molecules 被引量: 0发表: 2013年 In silico formulation: Application of art...
Amide II bands of right-handed α helices were all found to have negative VCD and to have their maximum rotational strength for the parallel (low-energy) component. However, left-handed α helices formed from L-amino acids gave positive amide II bands at higher frequencies than found for the...
PYRUVIC ACID II. THE DETERMINATION OF KETO ACIDS IN BLOOD AND URINE percent indicated acetylpyruvic-acid, acetoacetic-acid, levulinic-acid; greater than 10 percent indicated formaldehyde, acetaldehyde, glyoxal, methylglyoxal, glyceraldehyde, acetone, glyoxylic-acid, oxalacetic-acid, and alpha-ketoglutaric...
II. Structure and Stability of 1-Phenyl-2-(trimethylsilyl)ethyl Cation in Solution ) and structurally related compounds, 1-phenylethyl-, 3,3-dimethyl-1-phenylbutyl-, and 1-(4-methylphenyl)ethyl trifluoroacetates (3a, 4, and 5). ... Nobujiro,Shimizu,Shin-ichiro,... - 《Bulletin of the...
A highly unsaturated new amide, (2E,4Z,8Z,10Z)-N-isobutyl-2,4,8,10-dodecatetraenamide (1), was isolated in very small quantities from the whole plant of Asarum forbesii Maxim. together with four known compounds, (2E,4E,8Z,10E)-N-isobutyl-2,4,8,10-dodecatetraenamide (2), ()...
NEW MATERIAL:A 2-pentenamide derivative of formula I [R<1> is naphthylmethyl or group of formula II (R<4> is H or methyl; Xn are halogen, metyyl, methoxyl, trifuloromethyl, etc.; m is 1 or 2; n is 0, 1 or 2); R<2> is H, alkyl, allyl, etc.; R<3> is Br, etc.;...
Reduction of Cocaine Self-Administration and D3 Receptor-Mediated Behavior by Two Novel Dopamine D3 Receptor-Selective Partial Agonists, OS-3-106 and WW-II... Dopamine D3 receptor (D3R)-selective compounds may be useful medications for cocaine dependence. In this study, we identified two novel...
R.A. Price, in Comprehensive Organic Functional Group Transformations II, 2005 5.06.1.1.2.(vi) Cyclic amides, including β-lactams In general, the synthesis of cyclic amides is relatively straightforward when five- to seven-membered rings are being prepared. For larger rings, the problem is ...