Molecular reorientation of CD 4 in gas‐phase mixtures
Spin‐lattice relaxation times were measured for the deuterons in CD 4 in pure gas and in mixtures with the following buffer gases: Ar, Kr, Xe, HCl, N 2 , CO, CO 2 , CF 4 , and SF 6 . Effective collision cross sections σ θ, 2 for the molecular reorientation of CD 4 in collisions with these ten molecu...
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| Veröffentlicht in: | Magnetic resonance in chemistry 2006-03, Vol.44 (3), p.241-248 |
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| container_title | Magnetic resonance in chemistry |
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| creator | ter Horst, Marc A. Jameson, Cynthia J. Jameson, A. Keith |
| description | Spin‐lattice relaxation times were measured for the deuterons in CD
4
in pure gas and in mixtures with the following buffer gases: Ar, Kr, Xe, HCl, N
2
, CO, CO
2
, CF
4
, and SF
6
. Effective collision cross sections σ
θ, 2
for the molecular reorientation of CD
4
in collisions with these ten molecules are obtained as a function of temperature. These cross sections are compared with the corresponding cross sections σ
J
obtained from
1
H spin‐rotation relaxation in mixtures of CH
4
with the same set of buffer gases. Various classical reorientation models typically applied in liquids predict different ratios of the reduced correlation times for the reorientation of spherical tops. The Langevin model comes closest to predicting the magnitude of the σ
θ, 2
/σ
J
ratio that we obtain for CD
4
. Copyright © 2006 John Wiley & Sons, Ltd. |
| doi_str_mv | 10.1002/mrc.1756 |
| format | Article |
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4
in pure gas and in mixtures with the following buffer gases: Ar, Kr, Xe, HCl, N
2
, CO, CO
2
, CF
4
, and SF
6
. Effective collision cross sections σ
θ, 2
for the molecular reorientation of CD
4
in collisions with these ten molecules are obtained as a function of temperature. These cross sections are compared with the corresponding cross sections σ
J
obtained from
1
H spin‐rotation relaxation in mixtures of CH
4
with the same set of buffer gases. Various classical reorientation models typically applied in liquids predict different ratios of the reduced correlation times for the reorientation of spherical tops. The Langevin model comes closest to predicting the magnitude of the σ
θ, 2
/σ
J
ratio that we obtain for CD
4
. Copyright © 2006 John Wiley & Sons, Ltd.</description><identifier>ISSN: 0749-1581</identifier><identifier>EISSN: 1097-458X</identifier><identifier>DOI: 10.1002/mrc.1756</identifier><language>eng</language><ispartof>Magnetic resonance in chemistry, 2006-03, Vol.44 (3), p.241-248</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c726-36f9f13f543343389bbe8b223b23fd3fc55c6d3f6c742d6bfa56cf70692d5b833</citedby><cites>FETCH-LOGICAL-c726-36f9f13f543343389bbe8b223b23fd3fc55c6d3f6c742d6bfa56cf70692d5b833</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>ter Horst, Marc A.</creatorcontrib><creatorcontrib>Jameson, Cynthia J.</creatorcontrib><creatorcontrib>Jameson, A. Keith</creatorcontrib><title>Molecular reorientation of CD 4 in gas‐phase mixtures</title><title>Magnetic resonance in chemistry</title><description>Spin‐lattice relaxation times were measured for the deuterons in CD
4
in pure gas and in mixtures with the following buffer gases: Ar, Kr, Xe, HCl, N
2
, CO, CO
2
, CF
4
, and SF
6
. Effective collision cross sections σ
θ, 2
for the molecular reorientation of CD
4
in collisions with these ten molecules are obtained as a function of temperature. These cross sections are compared with the corresponding cross sections σ
J
obtained from
1
H spin‐rotation relaxation in mixtures of CH
4
with the same set of buffer gases. Various classical reorientation models typically applied in liquids predict different ratios of the reduced correlation times for the reorientation of spherical tops. The Langevin model comes closest to predicting the magnitude of the σ
θ, 2
/σ
J
ratio that we obtain for CD
4
. Copyright © 2006 John Wiley & Sons, Ltd.</description><issn>0749-1581</issn><issn>1097-458X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNotz81KAzEYheEgCo5V8BKydJOa5Jskk6WMWgstbrpwF5JMoiPzU5Ip6M5L8Bq9EqcoHHh3Bx6ErhldMkr5bZ_8kikhT1DBqFakFNXLKSqoKjVhomLn6CLnd0qp1goKpLZjF_yhswmnMKY2DJOd2nHAY8T1PS5xO-BXm3--vvdvNgfctx_TIYV8ic6i7XK4-u8C7R4fdvUT2Tyv1vXdhnjFJQEZdWQQRQkwr9LOhcpxDo5DbCB6IbycK70qeSNdtEL6qKjUvBGuAligm79bn8acU4hmn9repk_DqDl6zew1Ry_8Ai7ISLg</recordid><startdate>200603</startdate><enddate>200603</enddate><creator>ter Horst, Marc A.</creator><creator>Jameson, Cynthia J.</creator><creator>Jameson, A. Keith</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>200603</creationdate><title>Molecular reorientation of CD 4 in gas‐phase mixtures</title><author>ter Horst, Marc A. ; Jameson, Cynthia J. ; Jameson, A. Keith</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c726-36f9f13f543343389bbe8b223b23fd3fc55c6d3f6c742d6bfa56cf70692d5b833</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>ter Horst, Marc A.</creatorcontrib><creatorcontrib>Jameson, Cynthia J.</creatorcontrib><creatorcontrib>Jameson, A. Keith</creatorcontrib><collection>CrossRef</collection><jtitle>Magnetic resonance in chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ter Horst, Marc A.</au><au>Jameson, Cynthia J.</au><au>Jameson, A. Keith</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Molecular reorientation of CD 4 in gas‐phase mixtures</atitle><jtitle>Magnetic resonance in chemistry</jtitle><date>2006-03</date><risdate>2006</risdate><volume>44</volume><issue>3</issue><spage>241</spage><epage>248</epage><pages>241-248</pages><issn>0749-1581</issn><eissn>1097-458X</eissn><abstract>Spin‐lattice relaxation times were measured for the deuterons in CD
4
in pure gas and in mixtures with the following buffer gases: Ar, Kr, Xe, HCl, N
2
, CO, CO
2
, CF
4
, and SF
6
. Effective collision cross sections σ
θ, 2
for the molecular reorientation of CD
4
in collisions with these ten molecules are obtained as a function of temperature. These cross sections are compared with the corresponding cross sections σ
J
obtained from
1
H spin‐rotation relaxation in mixtures of CH
4
with the same set of buffer gases. Various classical reorientation models typically applied in liquids predict different ratios of the reduced correlation times for the reorientation of spherical tops. The Langevin model comes closest to predicting the magnitude of the σ
θ, 2
/σ
J
ratio that we obtain for CD
4
. Copyright © 2006 John Wiley & Sons, Ltd.</abstract><doi>10.1002/mrc.1756</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0749-1581 |
| ispartof | Magnetic resonance in chemistry, 2006-03, Vol.44 (3), p.241-248 |
| issn | 0749-1581 1097-458X |
| language | eng |
| recordid | cdi_crossref_primary_10_1002_mrc_1756 |
| source | Wiley Online Library Journals Frontfile Complete |
| title | Molecular reorientation of CD 4 in gas‐phase mixtures |
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