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2D Correlation Spectra Edited by the Sign of Relative Coupling Constant
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SYSNO ASEP 0357014 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title 2D Correlation Spectra Edited by the Sign of Relative Coupling Constant Author(s) Blechta, Vratislav (UCHP-M) RID, ORCID, SAI
Schraml, Jan (UCHP-M) RID, ORCID, SAISource Title Magnetic Resonance in Chemistry. - : Wiley - ISSN 0749-1581
Roč. 49, č. 3 (2011), s. 111-116Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords nmr ; nJ(Si,C) ; sign of coupling constant Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects IAA400720706 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000287890600003 DOI 10.1002/mrc.2720 Annotation Modifications (CSEc and CSEh) of recently published SQSQc and SQSQh pulse sequences are proposed and tested on detection of small (2 Hz) signed silicon carbon coupling constants. The new sequences increase signal intensity by simplifying the spectra. The signals are about four times stronger than in SQSQc or SQSQh spectra, achieving the sensitivity of E.COSY type experiment. The information about sign and magnitude of the coupling is preserved. CSEc and CSEh spectra for two silicon compounds are presented and compared. The two new sequences allow editing of heteronuclear correlation spectra according to the sign of the selected heteronuclear coupling constants. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2012
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