𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Solid-State 13 C Chemical Shift Tensors in Terpenes. 2. NMR Characterization of Distinct Molecules in the Asymmetric Unit and Steric Influences on Shift in Parthenolide

✍ Scribed by Harper, James K.; McGeorge, Gary; Grant, David M.


Book ID
126416991
Publisher
American Chemical Society
Year
1999
Tongue
English
Weight
141 KB
Volume
121
Category
Article
ISSN
0002-7863

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Hydrogen Bonding Effects on the 13C NMR
✍ Guang Zheng; Liming Wang; Jianzhi Hu; Xiaodong Zhang; Lianfang Shen; Chaohui Ye; 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 164 KB 👁 2 views

The inÑuence of hydrogen bonding (HB) on the 13C chemical shift tensors in four solid amino acids was studied by the ab initio gauge-included atomic orbital (GIAO) approach. The results of the present calculations were compared with those predicted previously and with the experimentally observed shi

13C MAS NMR Spectra ofcis,cis-Mucononitr
✍ K.V. Ramanathan; N. Suryaprakash; C.L. Khetrapal; Edwin D. Becker; Klaus Eichele 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 128 KB

The spinning sidebands observed in the 13 C MAS NMR spectra (Fig. 1a), oriented in a nematic phase and in the solid state of cis,cis-mucononitrile oriented in liquid-crystalline media and of are presented. As a consequence of the carbon-13 chemicalthe neat sample in the solid state are studied. Ther

13C and 15N NMR chemical shifts of 1-(2′
✍ M. Ángeles García; Rosa M. Claramunt; José Elguero 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 107 KB

## 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 _

Determination of the Peptide Torsion Ang
✍ M. Hong; J.D. Gross; W. Hu; R.G. Griffin 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 214 KB

We demonstrate a dipolar-chemical shift correlation technique for sign-sensitive determination of the torsion angle in solid peptides and proteins under magic-angle spinning. The indirect dimension of the experiment is obtained by separate but synchronous evolution of the magnetization under the 15

A high-resolution 13C-nmr study of colla
✍ Hazime Saitô; Ryoko Tabeta; Akira Shoji; Takuo Ozaki; Isao Ando; Teruo Miyata 📂 Article 📅 1984 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 987 KB

We have recorded high-resolution l3C-nmr spectra of collagen fibrils in the solid state by the cross-polarization-magic-angle-spinning (CP-MAS) method and analyzed the spectra with reference to those of collagenlike polypetides. We used two kinds of model polypeptides to obtain reference 13C chemica