Sublimation Enthalpies of Substituted Pyridine N-Oxides
The enthalpies of sublimation of five substituted pyridine N- oxides were determined by the Knudsen effusion method with mass spectrometric control of the vapor composition within the framework of the second law of thermodynamics. The sublimation enthalpy of mono-substituted compounds 4-X-PyO depend...
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| Veröffentlicht in: | Russian journal of general chemistry 2021, Vol.91 (10), p.1932-1937 |
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| container_end_page | 1937 |
|---|---|
| container_issue | 10 |
| container_start_page | 1932 |
| container_title | Russian journal of general chemistry |
| container_volume | 91 |
| creator | Belova, N. V. Giricheva, N. I. Zhabanov, Yu. A. Andreev, V. P. Girichev, G. V. |
| description | The enthalpies of sublimation of five substituted pyridine
N-
oxides were determined by the Knudsen effusion method with mass spectrometric control of the vapor composition within the framework of the second law of thermodynamics. The sublimation enthalpy of mono-substituted compounds 4-X-PyO depends on the nature of the substituent X and increases in the order CH
3
→NO
2
→OCH
3
. A difference is noted in the nature of dissociative ionization of disubstituted derivatives 2-CH
3
-4-NO
2
PyO and 3-CH
3
-4-NO
2
PyO. The relationship between the packing of molecules in crystals and the Δ
H
°
subl
values is considered. |
| doi_str_mv | 10.1134/S1070363221100029 |
| format | Article |
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N-
oxides were determined by the Knudsen effusion method with mass spectrometric control of the vapor composition within the framework of the second law of thermodynamics. The sublimation enthalpy of mono-substituted compounds 4-X-PyO depends on the nature of the substituent X and increases in the order CH
3
→NO
2
→OCH
3
. A difference is noted in the nature of dissociative ionization of disubstituted derivatives 2-CH
3
-4-NO
2
PyO and 3-CH
3
-4-NO
2
PyO. The relationship between the packing of molecules in crystals and the Δ
H
°
subl
values is considered.</description><identifier>ISSN: 1070-3632</identifier><identifier>EISSN: 1608-3350</identifier><identifier>DOI: 10.1134/S1070363221100029</identifier><identifier>PMID: 34776726</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Chemistry ; Chemistry and Materials Science ; Chemistry, Multidisciplinary ; Chemistry/Food Science ; Enthalpy ; Knudsen effusion ; Mass spectrometry ; Nitrogen dioxide ; Oxides ; Physical Sciences ; Pyridine ; Pyridines ; Science & Technology ; Spectrometry ; Sublimation ; Substitutes ; Thermodynamics</subject><ispartof>Russian journal of general chemistry, 2021, Vol.91 (10), p.1932-1937</ispartof><rights>Pleiades Publishing, Ltd. 2021</rights><rights>Pleiades Publishing, Ltd. 2021.</rights><rights>COPYRIGHT 2021 Springer</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>true</woscitedreferencessubscribed><woscitedreferencescount>1</woscitedreferencescount><woscitedreferencesoriginalsourcerecordid>wos000715802900002</woscitedreferencesoriginalsourcerecordid><citedby>FETCH-LOGICAL-c509t-61b05e6f0c1c5daafce8be18a83156f59b02ec2c2d7ae2347a6914dd9953d91a3</citedby><cites>FETCH-LOGICAL-c509t-61b05e6f0c1c5daafce8be18a83156f59b02ec2c2d7ae2347a6914dd9953d91a3</cites><orcidid>0000-0002-5846-6896 ; 0000-0001-7584-584X ; 0000-0001-7064-0693 ; 0000-0001-8249-5534 ; 0000-0003-0264-3408</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S1070363221100029$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1070363221100029$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>230,315,781,785,886,27929,27930,39263,41493,42562,51324</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/34776726$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Belova, N. V.</creatorcontrib><creatorcontrib>Giricheva, N. I.</creatorcontrib><creatorcontrib>Zhabanov, Yu. A.</creatorcontrib><creatorcontrib>Andreev, V. P.</creatorcontrib><creatorcontrib>Girichev, G. V.</creatorcontrib><title>Sublimation Enthalpies of Substituted Pyridine N-Oxides</title><title>Russian journal of general chemistry</title><addtitle>Russ J Gen Chem</addtitle><addtitle>RUSS J GEN CHEM</addtitle><addtitle>Russ J Gen Chem</addtitle><description>The enthalpies of sublimation of five substituted pyridine
N-
oxides were determined by the Knudsen effusion method with mass spectrometric control of the vapor composition within the framework of the second law of thermodynamics. The sublimation enthalpy of mono-substituted compounds 4-X-PyO depends on the nature of the substituent X and increases in the order CH
3
→NO
2
→OCH
3
. A difference is noted in the nature of dissociative ionization of disubstituted derivatives 2-CH
3
-4-NO
2
PyO and 3-CH
3
-4-NO
2
PyO. The relationship between the packing of molecules in crystals and the Δ
H
°
subl
values is considered.</description><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Chemistry, Multidisciplinary</subject><subject>Chemistry/Food Science</subject><subject>Enthalpy</subject><subject>Knudsen effusion</subject><subject>Mass spectrometry</subject><subject>Nitrogen dioxide</subject><subject>Oxides</subject><subject>Physical Sciences</subject><subject>Pyridine</subject><subject>Pyridines</subject><subject>Science & Technology</subject><subject>Spectrometry</subject><subject>Sublimation</subject><subject>Substitutes</subject><subject>Thermodynamics</subject><issn>1070-3632</issn><issn>1608-3350</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>HGBXW</sourceid><recordid>eNqNkltrFDEUxwdRbF39AL7IgC-CTM1lcnsRylIvUKxQfQ6Z5Mw2ZTZZJzNqv71nnbreECQPCTm__z_nkqp6TMkJpbx9cUmJIlxyxiglhDBzpzqmkuiGc0Hu4hnDzT5-VD0o5ZoQpCS7Xx3xVimpmDyu1OXcDXHrpphTfZamKzfsIpQ69zVGyhSneYJQv78ZY4gJ6nfNxdcYoDys7vVuKPDodl9VH1-dfVi_ac4vXr9dn543XhAzNZJ2RIDsiadeBOd6D7oDqp3mVMhemI4w8MyzoBwwTMtJQ9sQjBE8GOr4qnq5-O7mbgvBQ5pGN9jdiDmPNza7aH-PpHhlN_mz1UK1hms0eHZrMOZPM5TJbmPxMAwuQZ6LZcIozYhuCaJP_0Cv8zwmLG9PCcqlwravqpOF2rgBbEx9xnc9rgDb6HOCPuL9qaKaG6qkQQFdBH7MpYzQH7KnxO7naP-aI2qe_Fr2QfFjcAg8X4Av0OW--AjJwwFDE0WFRiey90Na_z-9jtP377DOc5pQyhZpQTxtYPzZlH-n_w3vrccg</recordid><startdate>2021</startdate><enddate>2021</enddate><creator>Belova, N. V.</creator><creator>Giricheva, N. I.</creator><creator>Zhabanov, Yu. A.</creator><creator>Andreev, V. P.</creator><creator>Girichev, G. V.</creator><general>Pleiades Publishing</general><general>Springer Nature</general><general>Springer</general><general>Springer Nature B.V</general><scope>BLEPL</scope><scope>DTL</scope><scope>HGBXW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-5846-6896</orcidid><orcidid>https://orcid.org/0000-0001-7584-584X</orcidid><orcidid>https://orcid.org/0000-0001-7064-0693</orcidid><orcidid>https://orcid.org/0000-0001-8249-5534</orcidid><orcidid>https://orcid.org/0000-0003-0264-3408</orcidid></search><sort><creationdate>2021</creationdate><title>Sublimation Enthalpies of Substituted Pyridine N-Oxides</title><author>Belova, N. V. ; Giricheva, N. I. ; Zhabanov, Yu. A. ; Andreev, V. P. ; Girichev, G. V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c509t-61b05e6f0c1c5daafce8be18a83156f59b02ec2c2d7ae2347a6914dd9953d91a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Chemistry, Multidisciplinary</topic><topic>Chemistry/Food Science</topic><topic>Enthalpy</topic><topic>Knudsen effusion</topic><topic>Mass spectrometry</topic><topic>Nitrogen dioxide</topic><topic>Oxides</topic><topic>Physical Sciences</topic><topic>Pyridine</topic><topic>Pyridines</topic><topic>Science & Technology</topic><topic>Spectrometry</topic><topic>Sublimation</topic><topic>Substitutes</topic><topic>Thermodynamics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Belova, N. V.</creatorcontrib><creatorcontrib>Giricheva, N. I.</creatorcontrib><creatorcontrib>Zhabanov, Yu. A.</creatorcontrib><creatorcontrib>Andreev, V. P.</creatorcontrib><creatorcontrib>Girichev, G. V.</creatorcontrib><collection>Web of Science Core Collection</collection><collection>Science Citation Index Expanded</collection><collection>Web of Science - Science Citation Index Expanded - 2021</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Russian journal of general chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Belova, N. V.</au><au>Giricheva, N. I.</au><au>Zhabanov, Yu. A.</au><au>Andreev, V. P.</au><au>Girichev, G. V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sublimation Enthalpies of Substituted Pyridine N-Oxides</atitle><jtitle>Russian journal of general chemistry</jtitle><stitle>Russ J Gen Chem</stitle><stitle>RUSS J GEN CHEM</stitle><addtitle>Russ J Gen Chem</addtitle><date>2021</date><risdate>2021</risdate><volume>91</volume><issue>10</issue><spage>1932</spage><epage>1937</epage><pages>1932-1937</pages><issn>1070-3632</issn><eissn>1608-3350</eissn><abstract>The enthalpies of sublimation of five substituted pyridine
N-
oxides were determined by the Knudsen effusion method with mass spectrometric control of the vapor composition within the framework of the second law of thermodynamics. The sublimation enthalpy of mono-substituted compounds 4-X-PyO depends on the nature of the substituent X and increases in the order CH
3
→NO
2
→OCH
3
. A difference is noted in the nature of dissociative ionization of disubstituted derivatives 2-CH
3
-4-NO
2
PyO and 3-CH
3
-4-NO
2
PyO. The relationship between the packing of molecules in crystals and the Δ
H
°
subl
values is considered.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><pmid>34776726</pmid><doi>10.1134/S1070363221100029</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-5846-6896</orcidid><orcidid>https://orcid.org/0000-0001-7584-584X</orcidid><orcidid>https://orcid.org/0000-0001-7064-0693</orcidid><orcidid>https://orcid.org/0000-0001-8249-5534</orcidid><orcidid>https://orcid.org/0000-0003-0264-3408</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Chemistry Chemistry and Materials Science Chemistry, Multidisciplinary Chemistry/Food Science Enthalpy Knudsen effusion Mass spectrometry Nitrogen dioxide Oxides Physical Sciences Pyridine Pyridines Science & Technology Spectrometry Sublimation Substitutes Thermodynamics |
| title | Sublimation Enthalpies of Substituted Pyridine N-Oxides |
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