Infrared spectra of the weak H2, O2, and N2 complexes with HCl in solid neon

Robert B. Bohn; Rodney D. Hunt; Lester Andrews

doi:10.1021/j100347a023

Infrared spectra of the weak H₂, O₂, and N₂ complexes with HCl in solid neon

Robert B. Bohn, Rodney D. Hunt, Lester Andrews

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Abstract

Weak 1:1 hydrogen-bonded complexes of molecular hydrogen, oxygen, and nitrogen with HCl have been prepared in solid neon at 4-5 K. Their infrared spectra have been characterized and H-Cl stretching fundamentals with chlorine isotopic splittings have been identified. The H₂-HCl complex has a v_s(HCl) absorption at 2879.4 cm^-1 and N₂-HCl, which is a stronger complex, has a v_s mode at 2871.4 cm^-1. The O₂-HCl complex has the smallest red shift (1.8 cm^-1) from the Q branch of HCl with v_s(HCl) at 2881.9 cm^-1. The H₂ and N₂ complexes are believed to be structurally similar to the corresponding HF complexes; however the O₂-HCl complex may be anti-hydrogen-bonded owing to the very small perturbation of the HCl stretching fundamental. The 1:2 base/HCl complexes were also prepared under conditions with higher HCl concentrations. Furthermore, a 2:1 O₂/HCl complex was characterized and identified under reaction conditions with high O₂ concentrations or annealing of the Ne/O₂/HCl matrices.

Original language	English
Pages (from-to)	3979-3983
Number of pages	5
Journal	Journal of Physical Chemistry
Volume	93
Issue number	10
DOIs	https://doi.org/10.1021/j100347a023
State	Published - 1989
Externally published	Yes

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title = "Infrared spectra of the weak H2, O2, and N2 complexes with HCl in solid neon",

abstract = "Weak 1:1 hydrogen-bonded complexes of molecular hydrogen, oxygen, and nitrogen with HCl have been prepared in solid neon at 4-5 K. Their infrared spectra have been characterized and H-Cl stretching fundamentals with chlorine isotopic splittings have been identified. The H2-HCl complex has a vs(HCl) absorption at 2879.4 cm-1 and N2-HCl, which is a stronger complex, has a vs mode at 2871.4 cm-1. The O2-HCl complex has the smallest red shift (1.8 cm-1) from the Q branch of HCl with vs(HCl) at 2881.9 cm-1. The H2 and N2 complexes are believed to be structurally similar to the corresponding HF complexes; however the O2-HCl complex may be anti-hydrogen-bonded owing to the very small perturbation of the HCl stretching fundamental. The 1:2 base/HCl complexes were also prepared under conditions with higher HCl concentrations. Furthermore, a 2:1 O2/HCl complex was characterized and identified under reaction conditions with high O2 concentrations or annealing of the Ne/O2/HCl matrices.",

author = "Bohn, {Robert B.} and Hunt, {Rodney D.} and Lester Andrews",

year = "1989",

doi = "10.1021/j100347a023",

language = "English",

volume = "93",

pages = "3979--3983",

journal = "Journal of Physical Chemistry",

issn = "0022-3654",

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TY - JOUR

T1 - Infrared spectra of the weak H2, O2, and N2 complexes with HCl in solid neon

AU - Bohn, Robert B.

AU - Hunt, Rodney D.

AU - Andrews, Lester

PY - 1989

Y1 - 1989

N2 - Weak 1:1 hydrogen-bonded complexes of molecular hydrogen, oxygen, and nitrogen with HCl have been prepared in solid neon at 4-5 K. Their infrared spectra have been characterized and H-Cl stretching fundamentals with chlorine isotopic splittings have been identified. The H2-HCl complex has a vs(HCl) absorption at 2879.4 cm-1 and N2-HCl, which is a stronger complex, has a vs mode at 2871.4 cm-1. The O2-HCl complex has the smallest red shift (1.8 cm-1) from the Q branch of HCl with vs(HCl) at 2881.9 cm-1. The H2 and N2 complexes are believed to be structurally similar to the corresponding HF complexes; however the O2-HCl complex may be anti-hydrogen-bonded owing to the very small perturbation of the HCl stretching fundamental. The 1:2 base/HCl complexes were also prepared under conditions with higher HCl concentrations. Furthermore, a 2:1 O2/HCl complex was characterized and identified under reaction conditions with high O2 concentrations or annealing of the Ne/O2/HCl matrices.

AB - Weak 1:1 hydrogen-bonded complexes of molecular hydrogen, oxygen, and nitrogen with HCl have been prepared in solid neon at 4-5 K. Their infrared spectra have been characterized and H-Cl stretching fundamentals with chlorine isotopic splittings have been identified. The H2-HCl complex has a vs(HCl) absorption at 2879.4 cm-1 and N2-HCl, which is a stronger complex, has a vs mode at 2871.4 cm-1. The O2-HCl complex has the smallest red shift (1.8 cm-1) from the Q branch of HCl with vs(HCl) at 2881.9 cm-1. The H2 and N2 complexes are believed to be structurally similar to the corresponding HF complexes; however the O2-HCl complex may be anti-hydrogen-bonded owing to the very small perturbation of the HCl stretching fundamental. The 1:2 base/HCl complexes were also prepared under conditions with higher HCl concentrations. Furthermore, a 2:1 O2/HCl complex was characterized and identified under reaction conditions with high O2 concentrations or annealing of the Ne/O2/HCl matrices.

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U2 - 10.1021/j100347a023

DO - 10.1021/j100347a023

M3 - Article

AN - SCOPUS:0000662112

SN - 0022-3654

VL - 93

SP - 3979

EP - 3983

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

IS - 10

ER -

Infrared spectra of the weak H₂, O₂, and N₂ complexes with HCl in solid neon

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