✦ LIBER ✦

Generality of the temperature dependence of carbon-13 shieldings as a probe for conformational or structural equilibriums

✍ Scribed by Lambert, Joseph B.; Vagenas, Adelia R.; Somani, Sujata

Book ID: 127222355
Publisher: American Chemical Society
Year: 1981
Tongue: English
Weight: 667 KB
Volume: 103
Category: Article
ISSN: 0002-7863
DOI: 10.1021/ja00411a022

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

The use of the furfural conformational e

The use of the furfural conformational equilibrium as a precise temperature probe in 13C NMR

✍ Suzanne Combrisson; Thierry Prange 📂 Article 📅 1975 🏛 Elsevier Science ⚖ 156 KB

Carbon-13 NMR as a probe for the structu

Carbon-13 NMR as a probe for the structural assignment of 1,4,5-trisubstituted imidazoles

✍ Lam, Bing L.; Wellman, George R.; Labaw, Clifford S.; Pepper, Edward S. 📂 Article 📅 1982 🏛 American Chemical Society 🌐 English ⚖ 495 KB

Carbon-13 nuclear magnetic resonance spe

Carbon-13 nuclear magnetic resonance spectra. XVI—lanthanide induced signal shifts of diastereotopic 13C nuclei as a probe for a conformational equilibrium

✍ Helmut Duddeck; Volker Wiskamp 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 161 KB

## Abstract The ^13^C NMR signals of the two methyl groups in 4‐hydroxy‐1‐isopropyl‐2‐oxaadamantane are anisochronous in the presence of Yb(fod)~3~. This is interpreted in terms of the different populations of three rotational conformers.

Carbon-13 as a tool for the study of car

Carbon-13 as a tool for the study of carbohydrate structures, conformations and interactions

✍ Nunez, H. A. ;Walker, T. E. ;Fuentes, R. ;O'Connor, J. ;Serianni, A. ;Barker, R. 📂 Article 📅 1977 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 686 KB

## Abstract The application of ^13^C‐NMR spectroscopy to problems involving the structures and interactions of carbohydrates is described. Both ^13^C‐enriched and natural abundance compounds were used and some advantages of the use of the stable isotope are described. Carbon‐carbon and carbon‐proto

Ab initio quantum-mechanical calculation

Ab initio quantum-mechanical calculations of the variation of the magnetic shielding constant of hydrogen and carbon 13 nuclei of the dimethylphosphate anion as a function of molecular conformation: A model study for nucleic acid constituents

✍ F. Ribas Prado; C. Giessner-Prettre; B. Pullman 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 558 KB

Mesoporous silica with Ia3d cubic struct

Mesoporous silica with Ia3d cubic structure and good thermal stabilityElectronic Supplementary Information (ESI) available: XRD and N2 sorption isotherms of the as-synthesized powders calcined in air at 900 �C for 4 h, and the as-synthesized powders calcined in air at 500 �C for 6 h and then calcined in air or nitrogen at 900 �C for 4 h; XRD of the as-synthesized powders when the molar ratio of DM?CTAB is 1?2; EDS spectrum and TGA curve of the powders carbonized in nitrogen at 900 �C for 4 h; proposed formation mechanism of the Ia3d cubic mesostructure in nitrogen at high temperatures such as 900 �C. See http://www.rsc.org/suppdata/cc/b3/b316501a/

✍ Pang, Jiebin; Eric Hampsey, J.; Hu, Qingyuan; Wu, Zhiwang; John, Vijay T.; Lu, Y 📂 Article 📅 2004 🏛 Royal Society of Chemistry 🌐 English ⚖ 221 KB