✦ LIBER ✦

Natural abundance nitrogen-15 NMR by enhanced heteronuclear spectroscopy

✍ Scribed by Geoffrey Bodenhausen; David J. Ruben

Publisher: Elsevier Science
Year: 1980
Tongue: English
Weight: 439 KB
Volume: 69
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(80)80041-8

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Natural abundance 15N NMR spectroscopy o

Natural abundance 15N NMR spectroscopy of silicon—nitrogen and tin—nitrogen compounds

✍ Bernd Wrackmeyer; Susanna Kerschl; Carin Stader; Klaus Horchler 📂 Article 📅 1986 🏛 Elsevier Science 🌐 English ⚖ 489 KB

Natural abundance nitrogen-15 NMR spectr

Natural abundance nitrogen-15 NMR spectroscopy of rhodium complexes by indirect detection using phosphorus

✍ Laurence Carlton; Rosemarie Weber 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 251 KB 👁 2 views

Nitrogen-15 NMR spectra of the complexes and ] , each containing 15N at natural abundance, were obtained by indirect detection (HMQC) using phosphorus as the observed nucleus. Data collection times varied from 4 h to 4 d depending upon the accuracy of the estimated value of 2J(31P,15N) used to opti

Differentiation of regioisomers at 15N n

Differentiation of regioisomers at 15N natural abundance using gradient-enhanced 1H/15N HMBC NMR spectroscopy

✍ Patricia A. McDonnell; A. Diane Gauthier; Michael P. Ferro 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 195 KB 👁 1 views

The 1H/15N HMBC experiment at 15N natural abundance using pulsed Ðeld gradients is a useful tool for chemical shift assignment and structure elucidation. This experiment assisted in the identiÐcation of regioisomers that could not be distinguished with conventional 1H/1H nuclear Overhauser or 1H/13C

Characterization of two series of nitrog

Characterization of two series of nitrogen-containing dendrimers by natural abundance 15N NMR

✍ Rodolphe Deloncle; Yannick Coppel; Cyrille Rebout; Jean-Pierre Majoral; Anne-Mar 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 191 KB

## Abstract Two series of small generation dendrimers built with phosphorus atoms at each branching point and various types of nitrogen atoms at natural abundance of ^15^N within the branches are characterized by a gradient enhanced GHNMQC (gradient hydrogen–nitrogen multiple quantum coherence) ^1^

Natural abundance nitrogen-15 CP-MAS NMR

Natural abundance nitrogen-15 CP-MAS NMR studies of copper(I) complexes

✍ Susumu Kitagawa; Megumu Munakata; Kenzou Deguchi; Teruaki Fujito 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 252 KB

Natural abundance "N CP-MAS NMR spectra of copper(1) complexes and their ligands, [Cu(biL),]PF, [ biL = l,l&pbenanthroline (phen) and 2,~imethyl-l,l&phenanthroliae (Z,PMe,phen)l, were measured. Coordination shifts of -45 and -44 (average) ppm were obtained for phen and Z,PMe,phen, respectively, whic

Nitrogen-15 magnetic resonance spectrosc

Nitrogen-15 magnetic resonance spectroscopy XVI—natural-abundance spectra of aromatic amines

✍ Robert L. Lichter; John D. Roberts 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 379 KB

## Abstract The ^15^N chemical shifts of aniline, the toluidines, xylidines, and several halogen and oxygen substituted anilines have been measured at the natural abundance level of ^15^N. Substituent parameters obtained by multiple regression analysis show that the methyl group induces comparable