Microwave observation of H 3N-SO 3⋯H 2O using a concentric, dual-injection nozzle source

S. W. Hunt; C. S. Brauer; M. B. Craddock; K. J. Higgins; A. M. Nienow; Kenneth R Leopold

doi:10.1016/j.chemphys.2004.06.040

Microwave observation of H ₃N-SO ₃⋯H ₂O using a concentric, dual-injection nozzle source

S. W. Hunt, C. S. Brauer, M. B. Craddock, K. J. Higgins, A. M. Nienow, Kenneth R Leopold

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The complex H ₃N-SO ₃⋯H ₂O is observed by pulsed nozzle Fourier transform microwave spectroscopy using a newly designed concentric, dual-injection nozzle source. This source allows two reactive species to be injected independently into a seeded supersonic expansion by introducing gases through a pair of concentric hypodermic needles situated downstream of the nozzle orifice. Microwave spectra of the parent form of H ₃N-SO ₃⋯H ₂O, as well as nine isotopically substituted derivatives are observed, and the N-S bond length is estimated to be 1.83(13) Å. This value is in reasonable agreement with previous theoretical calculations and suggests that the complexation of H ₃N-SO ₃ with water produces a substantial contraction of the nitrogen-sulfur bond. The spectrum shows no evidence of internal motion of the water subunit.

Original language	English (US)
Pages (from-to)	155-164
Number of pages	10
Journal	Chemical Physics
Volume	305
Issue number	1-3
DOIs	https://doi.org/10.1016/j.chemphys.2004.06.040
State	Published - Oct 25 2004

Bibliographical note

Funding Information:
This work was supported by the National Science Foundation, the donors of the Petroleum Research Fund, administered by the American Chemical Society, and the Minnesota Supercomputing Institute. We are also grateful to Professor Fu-Ming Tao for making the results of [8] available to us prior to publication.

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title = "Microwave observation of H 3N-SO 3⋯H 2O using a concentric, dual-injection nozzle source",

abstract = "The complex H 3N-SO 3⋯H 2O is observed by pulsed nozzle Fourier transform microwave spectroscopy using a newly designed concentric, dual-injection nozzle source. This source allows two reactive species to be injected independently into a seeded supersonic expansion by introducing gases through a pair of concentric hypodermic needles situated downstream of the nozzle orifice. Microwave spectra of the parent form of H 3N-SO 3⋯H 2O, as well as nine isotopically substituted derivatives are observed, and the N-S bond length is estimated to be 1.83(13) {\AA}. This value is in reasonable agreement with previous theoretical calculations and suggests that the complexation of H 3N-SO 3 with water produces a substantial contraction of the nitrogen-sulfur bond. The spectrum shows no evidence of internal motion of the water subunit.",

author = "Hunt, {S. W.} and Brauer, {C. S.} and Craddock, {M. B.} and Higgins, {K. J.} and Nienow, {A. M.} and Leopold, {Kenneth R}",

note = "Funding Information: This work was supported by the National Science Foundation, the donors of the Petroleum Research Fund, administered by the American Chemical Society, and the Minnesota Supercomputing Institute. We are also grateful to Professor Fu-Ming Tao for making the results of [8] available to us prior to publication. ",

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T1 - Microwave observation of H 3N-SO 3⋯H 2O using a concentric, dual-injection nozzle source

AU - Hunt, S. W.

AU - Brauer, C. S.

AU - Craddock, M. B.

AU - Higgins, K. J.

AU - Nienow, A. M.

AU - Leopold, Kenneth R

N1 - Funding Information: This work was supported by the National Science Foundation, the donors of the Petroleum Research Fund, administered by the American Chemical Society, and the Minnesota Supercomputing Institute. We are also grateful to Professor Fu-Ming Tao for making the results of [8] available to us prior to publication.

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N2 - The complex H 3N-SO 3⋯H 2O is observed by pulsed nozzle Fourier transform microwave spectroscopy using a newly designed concentric, dual-injection nozzle source. This source allows two reactive species to be injected independently into a seeded supersonic expansion by introducing gases through a pair of concentric hypodermic needles situated downstream of the nozzle orifice. Microwave spectra of the parent form of H 3N-SO 3⋯H 2O, as well as nine isotopically substituted derivatives are observed, and the N-S bond length is estimated to be 1.83(13) Å. This value is in reasonable agreement with previous theoretical calculations and suggests that the complexation of H 3N-SO 3 with water produces a substantial contraction of the nitrogen-sulfur bond. The spectrum shows no evidence of internal motion of the water subunit.

AB - The complex H 3N-SO 3⋯H 2O is observed by pulsed nozzle Fourier transform microwave spectroscopy using a newly designed concentric, dual-injection nozzle source. This source allows two reactive species to be injected independently into a seeded supersonic expansion by introducing gases through a pair of concentric hypodermic needles situated downstream of the nozzle orifice. Microwave spectra of the parent form of H 3N-SO 3⋯H 2O, as well as nine isotopically substituted derivatives are observed, and the N-S bond length is estimated to be 1.83(13) Å. This value is in reasonable agreement with previous theoretical calculations and suggests that the complexation of H 3N-SO 3 with water produces a substantial contraction of the nitrogen-sulfur bond. The spectrum shows no evidence of internal motion of the water subunit.

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