✦ LIBER ✦

A new technique for differentiating between 2J(C,H) and 3/4J(C,H) connectivities

✍ Scribed by Thomas Sprang; Peter Bigler

Publisher: John Wiley and Sons
Year: 2003
Tongue: English
Weight: 266 KB
Volume: 41
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1154

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

We present a new pulse sequence that yields two simultaneously detected types of long‐range correlation spectra. The one spectrum is to show all ^n^J(C,H) connectivities and the other is to show exclusively ^2^J(C,H) connectivities. The method is demonstrated by using strychnine as a test sample. A comparison with HMBC shows that the ^2^J(C,H)/^n^J(C,H) experiment supplies a ^n^J(C,H) spectrum that is of equal standard with regard to sensitivity and spectral information. The additional ^2^J(C,H) spectrum allows the disentanglement of ^2^J(C,H) and ^n^J(C,H) signals (n > 2) in HMBC type spectra, which greatly simplifies signal assignment and structure elucidation in general. Copyright © 2003 John Wiley & Sons, Ltd.

📜 SIMILAR VOLUMES

HMBC–RELAY: a combined technique for the

HMBC–RELAY: a combined technique for the differentiation of simultaneously detected 2J(C,H) and nJ(C,H) connectivities

✍ Thomas Sprang; Peter Bigler 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 404 KB

## Abstract We present a new pulse sequence that detects simultaneously ^__n__^__J__(C,H) and ^2^__J__(C,H) connectivities. The corresponding coherences are created along independent pathways and therefore can be separated into two different subspectra. One spectrum is to show all ^__n__^__J__(C,H)

ChemInform Abstract: One-Step Syntheses

ChemInform Abstract: One-Step Syntheses of Tetrapyrido(2,3-a:3′,2′-c:2′′,3′′-h:3′′′,2′′′-j) phenazine and Dibenzo(a:c)(dipyrido(2,3-h:2′,3′-j))phenazine

✍ A. GOURDON 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 27 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

Rate constants for the elementary reacti

Rate constants for the elementary reactions between CN radicals and CH4, C2H6, C2H4, C3H6, and C2H2 in the range: 295 ⩽ T/K ⩽ 700

✍ Lee Herbert; Ian W. M. Smith; Rowland D. Spencer-smith 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 724 KB

Pulsed laser photolysis, time-resolved laser-induced fluorescence experiments have been carried out on the reactions of CN radicals with CH,, CZHs, C2H4, C3H6, and C2H2. They have yielded rate constants for these five reactions at temperatures between 295 and 700 K. The data for the reactions with m

A Layered Solution Crystal Growth Techni

A Layered Solution Crystal Growth Technique and the Crystal Structure of (C6H5C2H4NH3)2PbCl4

✍ D.B Mitzi 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 591 KB

Single crystals of the organic+inorganic perovskite (C 6 H 5 C 2 H 4 NH 3 ) 2 PbCl 4 have been grown at room temperature using a layered solution approach. The bottom solution layer, contained within a long straight tube, consists of PbCl 2 dissolved in concentrated aqueous HCl. A less dense layer o

Tetrapyrido[3,2-a:2′,3′-c:3″,2″-h:2‴,3‴-

Tetrapyrido[3,2-a:2′,3′-c:3″,2″-h:2‴,3‴-j]acridine (tpac): a new extended polycyclic bis-phenanthroline ligand

✍ Martine Demeunynck; Cécile Moucheron; Andrée Kirsch-De Mesmaeker 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 156 KB

Ferrocenylpyridines: a new synthesis of

Ferrocenylpyridines: a new synthesis of 4′-ferrocenylterpyridine and the single crystal structure of a C3-ferrocenophane, [(η-C5H4CHCH2C(O)2-C5H4N)2CHC(O)2-C5H4N]Fe

✍ Ian R. Butler; Sara J. McDonald; Michael B. Hursthouse; K.M. Abdul Malik 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 885 KB