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Title: sup 125 Te solid-state NMR spectra and secondary bonding arrangements for some salts of the trimethyltelluronium and triphenyltelluronium cations

Abstract

The preparation of several salts of the Me{sub 3}Te{sup +} and Ph{sub 3}Te{sup +} cations is reported along with {sup 125}Te static and CP/MAS solid-state NMR spectra of the Me{sub 3}Te{sup +} salts and {sup 125}Te CP/MAS spectra of the Ph{sub 3}Te{sup +} salts. In addition, crystal structures of the salts Me{sub 3}Te{sup +}Cl{sup {minus}} {times} H{sub 2}O (1), Me{sub 3}Te{sup +}I{sup {minus}} (2), Me{sub 3}Te{sup +}NO{sub 3}{sup {minus}} (3), Ph{sub 3}Te{sup +}NO{sub 3}{sup {minus}} (4), Ph{sub 3}Te{sup +}Cl{sup {minus}} {times}{1/2}CHCl{sub 3} (5), and (Ph{sub 3}Te){sub 2}SO{sub 4} {times} 5H{sub 2}O (6) have been determined to help in the interpretation of some of the above spectra. It is shown that secondary bonding interactions with the anions have significant and substantial influence on the geometries of the cations and their crystal packings and on the resulting NMR spectra in terms of the tellurium shielding tensors and isotropic chemical shifts and in the presence of log-range spin {1/2} to spin 3/2 couplings. These couplings are indicative of long-range covalent interactions between the anions and cations in this series of compounds. In particular, the {sup 125}Te CP/MAS spectrum of Me{sub 3}Te{sup +}Cl{sup {minus}} {times} H{sub 2}O consists of a septet due to couplingmore » to two equivalent chlorine atoms. In the case of 4 and 5 the presence of 4 and 2 crystallographically independent Te atoms is confirmed in the NMR spectra. 38 refs., 11 figs.« less

Authors:
;  [1];  [2]
  1. (National Research Council of Canada, Ottawa, Ontario (Canada))
  2. (Univ. of Toronto, Ontario (USA))
Publication Date:
OSTI Identifier:
7268180
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of the American Chemical Society; (USA); Journal Volume: 110:26
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALKANES; CHEMICAL PREPARATION; ORGANOMETALLIC COMPOUNDS; TELLURIUM COMPOUNDS; EXPERIMENTAL DATA; NMR SPECTRA; TELLURIUM 125; DATA; DAYS LIVING RADIOISOTOPES; EVEN-ODD NUCLEI; HYDROCARBONS; INFORMATION; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; NUCLEI; NUMERICAL DATA; ORGANIC COMPOUNDS; RADIOISOTOPES; SPECTRA; STABLE ISOTOPES; SYNTHESIS; TELLURIUM ISOTOPES; 400201* - Chemical & Physicochemical Properties; 400202 - Isotope Effects, Isotope Exchange, & Isotope Separation

Citation Formats

Collins, M.J., Ripmeester, J.A., and Sawyer, J.F.. sup 125 Te solid-state NMR spectra and secondary bonding arrangements for some salts of the trimethyltelluronium and triphenyltelluronium cations. United States: N. p., 1988. Web. doi:10.1021/ja00234a002.
Collins, M.J., Ripmeester, J.A., & Sawyer, J.F.. sup 125 Te solid-state NMR spectra and secondary bonding arrangements for some salts of the trimethyltelluronium and triphenyltelluronium cations. United States. doi:10.1021/ja00234a002.
Collins, M.J., Ripmeester, J.A., and Sawyer, J.F.. Wed . "sup 125 Te solid-state NMR spectra and secondary bonding arrangements for some salts of the trimethyltelluronium and triphenyltelluronium cations". United States. doi:10.1021/ja00234a002.
@article{osti_7268180,
title = {sup 125 Te solid-state NMR spectra and secondary bonding arrangements for some salts of the trimethyltelluronium and triphenyltelluronium cations},
author = {Collins, M.J. and Ripmeester, J.A. and Sawyer, J.F.},
abstractNote = {The preparation of several salts of the Me{sub 3}Te{sup +} and Ph{sub 3}Te{sup +} cations is reported along with {sup 125}Te static and CP/MAS solid-state NMR spectra of the Me{sub 3}Te{sup +} salts and {sup 125}Te CP/MAS spectra of the Ph{sub 3}Te{sup +} salts. In addition, crystal structures of the salts Me{sub 3}Te{sup +}Cl{sup {minus}} {times} H{sub 2}O (1), Me{sub 3}Te{sup +}I{sup {minus}} (2), Me{sub 3}Te{sup +}NO{sub 3}{sup {minus}} (3), Ph{sub 3}Te{sup +}NO{sub 3}{sup {minus}} (4), Ph{sub 3}Te{sup +}Cl{sup {minus}} {times}{1/2}CHCl{sub 3} (5), and (Ph{sub 3}Te){sub 2}SO{sub 4} {times} 5H{sub 2}O (6) have been determined to help in the interpretation of some of the above spectra. It is shown that secondary bonding interactions with the anions have significant and substantial influence on the geometries of the cations and their crystal packings and on the resulting NMR spectra in terms of the tellurium shielding tensors and isotropic chemical shifts and in the presence of log-range spin {1/2} to spin 3/2 couplings. These couplings are indicative of long-range covalent interactions between the anions and cations in this series of compounds. In particular, the {sup 125}Te CP/MAS spectrum of Me{sub 3}Te{sup +}Cl{sup {minus}} {times} H{sub 2}O consists of a septet due to coupling to two equivalent chlorine atoms. In the case of 4 and 5 the presence of 4 and 2 crystallographically independent Te atoms is confirmed in the NMR spectra. 38 refs., 11 figs.},
doi = {10.1021/ja00234a002},
journal = {Journal of the American Chemical Society; (USA)},
number = ,
volume = 110:26,
place = {United States},
year = {Wed Dec 21 00:00:00 EST 1988},
month = {Wed Dec 21 00:00:00 EST 1988}
}