✦ LIBER ✦

3C-NMR structural features of soil humic acids and their methylated, hydrolyzed and extracted derivatives

✍ Scribed by F.J. Gonzalez-Vila; H.-D. Lüdemann; F. Martin

Book ID: 115940073
Publisher: Elsevier Science
Year: 1983
Tongue: English
Weight: 737 KB
Volume: 31
Category: Article
ISSN: 0016-7061
DOI: 10.1016/0016-7061(83)90080-0

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Crystal data and some structural feature

Crystal data and some structural features of γ-aminobutyric acid, 3-aminopropane sulfonic acid and their derivatives

✍ Ken-ichi Tomita 📂 Article 📅 1971 🏛 Elsevier Science 🌐 French ⚖ 113 KB

It is well known that the proteins consist of over twenty u-amino acids. However, many w-amino acids or w-amino sulfonic acids have been isolated from various sources of the animals and plants. Numerous investigations have been pointed to accumulate data as to the metabolic pathway or the knowledg

Comparison between CP/MAS 13C-NMR and py

Comparison between CP/MAS 13C-NMR and pyrolysis-GC/MS in the structural characterization of humins and humic acids of soil and sediments

✍ D. Fabbri; M. Mongardi; L. Montanari; G. C. Galletti; G. Chiavari; R. Scotti 📂 Article 📅 1998 🏛 Springer 🌐 English ⚖ 151 KB

Synthesis and 1H and 13C NMR structural

Synthesis and 1H and 13C NMR structural analysis of cis- and trans-2-imino-1,3- and -3,1-perhydrobenzoxazines and their 3- and 1-N-methyl derivatives

✍ Kalevi Pihlaja; Jari Sinkkonen; Ferenc Fülöp 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 133 KB

## Abstract __cis__‐ and __trans__‐2‐imino‐1,3‐ and ‐3,1‐perhydrobenzoxazines and the __N__‐methyl derivatives of the latter were synthesized from the corresponding cyclic 1,3‐amino alcohol with cyanogen bromide. The configurations of the studied compounds were confirmed by ^1^H and ^13^C NMR spect

Stereochemically defined C-substituted g

Stereochemically defined C-substituted glutamic acids and their derivatives. 1. An efficient asymmetric synthesis of (2S,3S)-3-methyl- and -3-trifluoromethylpyroglutamic acids

✍ Vadim A Soloshonok; Chaozhong Cai; Victor J Hruby; Luc Van Meervelt; Nikolai Mis 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 941 KB

Metal binding sites and partial structur

Metal binding sites and partial structures of soil fulvic and humic acids compared: aided by Eu(III) luminescence spectroscopy and DEPT/QUAT 13C NMR pulse techniques

✍ H.S. Shin; S.W. Rhee; B.H. Lee; C.H. Moon 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 601 KB

1H and 13C NMR study of the structure of

1H and 13C NMR study of the structure of pyrazoles, imidazoles and their benzo derivatives in sulphuric acid (azolium cations)

✍ José Elguero; María Luisa Jimeno; Gloria I. Yranzo 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 408 KB

## Abstract The NMR spectra of two imidazoles, benzimidazole, four pyrazoles and three indazoles were recorded in 98% sulphuric acid, and the ^1^H, ^13^C, ^1^H–^1^H and ^1^H–^13^C spectral parameters of the corresponding azolium ions were obtained. The ^1^H N‐H chemical shifts and the ^1^H and ^13^