33S and 17O nuclear magnetic resonance study of liquid sulfur dioxide | Zendy

Roderick E. Wasylishen | Zendy; J. Bruce Macdonald | Zendy; Jan O. Friedrich | Zendy

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³³S and ¹⁷O nuclear magnetic resonance study of liquid sulfur dioxide

Author(s) -

Roderick E. Wasylishen,

J. Bruce Macdonald,

Jan O. Friedrich

Publication year - 1984

Publication title -

canadian journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.323

H-Index - 68

eISSN - 1480-3291

pISSN - 0008-4042

DOI - 10.1139/v84-193

Subject(s) - chemistry , rotational correlation time , relaxation (psychology) , coupling constant , sulfur , analytical chemistry (journal) , oxygen 17 , nuclear magnetic resonance , sulfur dioxide , chemical shift , ion , inorganic chemistry , molecule , organic chemistry , psychology , social psychology , physics , particle physics

The sulfur-33 chemical shift and 33 S and 17 O nmr relaxation data are reported for liquid sulfur dioxide. The 33 S nucleus in SO 2 is highly deshielded, 375 ± 2 ppm to high frequency of the sulfate anion. The rotational correlation time of SO 2 at 294 K, 0.3 ps, is only about twice that calculated using an inertial model. The temperature dependence of the 33 S and 17 O nmr relaxation data can be described by an average activation energy of 6.3 ± 0.6 kJ mol −1 . The effective rotational correlation time derived from 33 S nmr line widths is used to calculate the 17 O quadrupolar coupling constant, e 2 qQ/h = 6.6 ± 0.7 MHz, in SO 2 .

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