H-1 NMR monitoring of water behavior during the Bray-Liebhafsky oscillatory reaction
Abstract
Proton NMR spectroscopy was used to monitor behavior of water during the oscillatiory part of the Bray-Liebhafsky (BL) reaction. A series of H-1 NMR spectra showed the complex structure of the water signal with periodic changes of the chemical shift and line splitting, which were in agreement with the periodicity of the BL reaction obtained by potentiometric measurements. An analysis of known intermediates in the BL reaction indicated that oxygen formation both as dissolved and in form of bubbles has the dominant effect on NMR spectra. In addition, certain restructuring of water was observed during oscillations, suggesting the subtle role of water in the mechanism of the BL reaction and pointing out to the importance of the NMR techniques in investigation of the chemical oscillators.
Source:
Journal of Physical Chemistry A, 1998, 102, 35, 6883-6886
DOI: 10.1021/jp980803x
ISSN: 1089-5639
WoS: 000075744300001
Scopus: 2-s2.0-11744277583
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Institution/Community
Institut za opštu i fizičku hemijuTY - JOUR AU - Stanisavljev, Dragomir AU - Begović, Nebojša AU - Zujović, Z AU - Vucelić, D AU - Bacić, G PY - 1998 UR - https://riofh.iofh.bg.ac.rs/handle/123456789/42 AB - Proton NMR spectroscopy was used to monitor behavior of water during the oscillatiory part of the Bray-Liebhafsky (BL) reaction. A series of H-1 NMR spectra showed the complex structure of the water signal with periodic changes of the chemical shift and line splitting, which were in agreement with the periodicity of the BL reaction obtained by potentiometric measurements. An analysis of known intermediates in the BL reaction indicated that oxygen formation both as dissolved and in form of bubbles has the dominant effect on NMR spectra. In addition, certain restructuring of water was observed during oscillations, suggesting the subtle role of water in the mechanism of the BL reaction and pointing out to the importance of the NMR techniques in investigation of the chemical oscillators. T2 - Journal of Physical Chemistry A T1 - H-1 NMR monitoring of water behavior during the Bray-Liebhafsky oscillatory reaction EP - 6886 IS - 35 SP - 6883 VL - 102 DO - 10.1021/jp980803x UR - conv_156 ER -
@article{ author = "Stanisavljev, Dragomir and Begović, Nebojša and Zujović, Z and Vucelić, D and Bacić, G", year = "1998", abstract = "Proton NMR spectroscopy was used to monitor behavior of water during the oscillatiory part of the Bray-Liebhafsky (BL) reaction. A series of H-1 NMR spectra showed the complex structure of the water signal with periodic changes of the chemical shift and line splitting, which were in agreement with the periodicity of the BL reaction obtained by potentiometric measurements. An analysis of known intermediates in the BL reaction indicated that oxygen formation both as dissolved and in form of bubbles has the dominant effect on NMR spectra. In addition, certain restructuring of water was observed during oscillations, suggesting the subtle role of water in the mechanism of the BL reaction and pointing out to the importance of the NMR techniques in investigation of the chemical oscillators.", journal = "Journal of Physical Chemistry A", title = "H-1 NMR monitoring of water behavior during the Bray-Liebhafsky oscillatory reaction", pages = "6886-6883", number = "35", volume = "102", doi = "10.1021/jp980803x", url = "conv_156" }
Stanisavljev, D., Begović, N., Zujović, Z., Vucelić, D.,& Bacić, G.. (1998). H-1 NMR monitoring of water behavior during the Bray-Liebhafsky oscillatory reaction. in Journal of Physical Chemistry A, 102(35), 6883-6886. https://doi.org/10.1021/jp980803x conv_156
Stanisavljev D, Begović N, Zujović Z, Vucelić D, Bacić G. H-1 NMR monitoring of water behavior during the Bray-Liebhafsky oscillatory reaction. in Journal of Physical Chemistry A. 1998;102(35):6883-6886. doi:10.1021/jp980803x conv_156 .
Stanisavljev, Dragomir, Begović, Nebojša, Zujović, Z, Vucelić, D, Bacić, G, "H-1 NMR monitoring of water behavior during the Bray-Liebhafsky oscillatory reaction" in Journal of Physical Chemistry A, 102, no. 35 (1998):6883-6886, https://doi.org/10.1021/jp980803x ., conv_156 .