✦ LIBER ✦

Resolution enhancement in solid-state MQ-MAS experiments achieved by composite decoupling

✍ Scribed by Vincent Lacassagne; Pierre Florian; Valérie Montouillout; Christel Gervais; Florence Babonneau; Dominique Massiot

Book ID: 101251721
Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 170 KB
Volume: 36
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199812)36:12<956::aid-omr424>3.0.co;2-7

No coin nor oath required. For personal study only.

✦ Synopsis

It is shown that, in the presence of strong heteronuclear dipolar couplings, resolution can be signiÐcantly improved in solid-state multiple quantum magic angle spinning NMR experiments on half integer quadrupolar nuclei by applying composite decoupling schemes during triple quantum evolution and acquisition. Reduction of the e †ects of heteronuclear dipolar coupling during the multiple quantum evolution period is shown to lead to improved resolution of 27Al sites in crystalline chiolite and 11B sites in a polyborazilene (Na 5 Al 3 F 14 ) sample.

📜 SIMILAR VOLUMES

An experimental study of decoupling sequ

An experimental study of decoupling sequences for multiple-quantum and high-resolution MAS experiments in solid-state NMR

✍ Rajendra Singh Thakur; Narayanan D. Kurur; P. K. Madhu 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 259 KB

## Abstract Recently, a sequence for heteronuclear dipolar decoupling in solid‐state NMR, namely SW~__f__~‐TPPM, was introduced by us. Under magic‐angle spinning (MAS), the decoupling efficiency of the sequence was unaffected over a range of values for various experimental parameters such as the pu