Photo-CIDNP Studies of 2-Butanone and 3-Pentanone in Solution
The results of photolysis of 2-butanone and 3-pentanone as studied by chemically induced dynamic nuclear polarization (CIDNP) and electron spin resonance spectroscopy (e.s.r.) are reported. In aqueous solutions and t-butanol only the ethyl radical is detected by means of e.s.r., indicating α cleavag...
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| Veröffentlicht in: | Canadian journal of chemistry 1974-08, Vol.52 (16), p.2978-2984 |
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| Sprache: | eng |
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| container_end_page | 2984 |
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| container_issue | 16 |
| container_start_page | 2978 |
| container_title | Canadian journal of chemistry |
| container_volume | 52 |
| creator | Vaish, Shiv P McAlpine, Robert D Cocivera, Michael |
| description | The results of photolysis of 2-butanone and 3-pentanone as studied by chemically induced dynamic nuclear polarization (CIDNP) and electron spin resonance spectroscopy (e.s.r.) are reported. In aqueous solutions and t-butanol only the ethyl radical is detected by means of e.s.r., indicating α cleavage to be a major path involving excited states. This observation is further supported by the n.m.r. spectra which are obtained during irradiation of these ketones in D
2
O and a mixture of CD
3
CN-D
2
O (1:1 by volume) containing carbon tetrachloride. Several compounds are detected with their protons spin polarized. A mechanism involving radical reactions is proposed which is consistent with the experimental results. |
| doi_str_mv | 10.1139/v74-437 |
| format | Article |
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2
O and a mixture of CD
3
CN-D
2
O (1:1 by volume) containing carbon tetrachloride. Several compounds are detected with their protons spin polarized. A mechanism involving radical reactions is proposed which is consistent with the experimental results.</description><identifier>ISSN: 0008-4042</identifier><identifier>EISSN: 1480-3291</identifier><identifier>DOI: 10.1139/v74-437</identifier><language>eng</language><publisher>Ottawa, Canada: NRC Research Press</publisher><ispartof>Canadian journal of chemistry, 1974-08, Vol.52 (16), p.2978-2984</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c221t-468ad6467653398454b561a878bfda7d4f32435140c84ebcdeed5e73862e93c73</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://cdnsciencepub.com/doi/pdf/10.1139/v74-437$$EPDF$$P50$$Gnrcresearch$$H</linktopdf><linktohtml>$$Uhttps://cdnsciencepub.com/doi/full/10.1139/v74-437$$EHTML$$P50$$Gnrcresearch$$H</linktohtml><link.rule.ids>314,776,780,2919,27901,27902,64401,64979</link.rule.ids></links><search><creatorcontrib>Vaish, Shiv P</creatorcontrib><creatorcontrib>McAlpine, Robert D</creatorcontrib><creatorcontrib>Cocivera, Michael</creatorcontrib><title>Photo-CIDNP Studies of 2-Butanone and 3-Pentanone in Solution</title><title>Canadian journal of chemistry</title><addtitle>Revue canadienne de chimie</addtitle><description>The results of photolysis of 2-butanone and 3-pentanone as studied by chemically induced dynamic nuclear polarization (CIDNP) and electron spin resonance spectroscopy (e.s.r.) are reported. In aqueous solutions and t-butanol only the ethyl radical is detected by means of e.s.r., indicating α cleavage to be a major path involving excited states. This observation is further supported by the n.m.r. spectra which are obtained during irradiation of these ketones in D
2
O and a mixture of CD
3
CN-D
2
O (1:1 by volume) containing carbon tetrachloride. Several compounds are detected with their protons spin polarized. A mechanism involving radical reactions is proposed which is consistent with the experimental results.</description><issn>0008-4042</issn><issn>1480-3291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1974</creationdate><recordtype>article</recordtype><recordid>eNp9z0tLxDAUhuEgCtZR_AtdKQjRXE6adOFC621g0MLouqRJylTGZEjaAf-9lZmtrg4fPBx4ETqn5JpSXt5sJWDg8gBlFBTBnJX0EGWEEIWBADtGJyl9TlMSJjJ0W6_CEHA1f3it8-Uw2t6lPHQ5w_fjoH3wLtfe5hzXzu937_NlWI9DH_wpOur0Ormz_Z2hj6fH9-oFL96e59XdAhvG6IChUNoWUMhCcF4qENCKgmolVdtZLS10nAEXFIhR4FpjnbPCSa4K5kpuJJ-hy91fE0NK0XXNJvZfOn43lDS_1c1U3UzVk7zaSR9NdMnpaFb_4Iu_8R41G9vxH1mAYzw</recordid><startdate>19740815</startdate><enddate>19740815</enddate><creator>Vaish, Shiv P</creator><creator>McAlpine, Robert D</creator><creator>Cocivera, Michael</creator><general>NRC Research Press</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19740815</creationdate><title>Photo-CIDNP Studies of 2-Butanone and 3-Pentanone in Solution</title><author>Vaish, Shiv P ; McAlpine, Robert D ; Cocivera, Michael</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c221t-468ad6467653398454b561a878bfda7d4f32435140c84ebcdeed5e73862e93c73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1974</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vaish, Shiv P</creatorcontrib><creatorcontrib>McAlpine, Robert D</creatorcontrib><creatorcontrib>Cocivera, Michael</creatorcontrib><collection>CrossRef</collection><jtitle>Canadian journal of chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vaish, Shiv P</au><au>McAlpine, Robert D</au><au>Cocivera, Michael</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photo-CIDNP Studies of 2-Butanone and 3-Pentanone in Solution</atitle><jtitle>Canadian journal of chemistry</jtitle><addtitle>Revue canadienne de chimie</addtitle><date>1974-08-15</date><risdate>1974</risdate><volume>52</volume><issue>16</issue><spage>2978</spage><epage>2984</epage><pages>2978-2984</pages><issn>0008-4042</issn><eissn>1480-3291</eissn><abstract>The results of photolysis of 2-butanone and 3-pentanone as studied by chemically induced dynamic nuclear polarization (CIDNP) and electron spin resonance spectroscopy (e.s.r.) are reported. In aqueous solutions and t-butanol only the ethyl radical is detected by means of e.s.r., indicating α cleavage to be a major path involving excited states. This observation is further supported by the n.m.r. spectra which are obtained during irradiation of these ketones in D
2
O and a mixture of CD
3
CN-D
2
O (1:1 by volume) containing carbon tetrachloride. Several compounds are detected with their protons spin polarized. A mechanism involving radical reactions is proposed which is consistent with the experimental results.</abstract><cop>Ottawa, Canada</cop><pub>NRC Research Press</pub><doi>10.1139/v74-437</doi><tpages>7</tpages></addata></record> |
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| ispartof | Canadian journal of chemistry, 1974-08, Vol.52 (16), p.2978-2984 |
| issn | 0008-4042 1480-3291 |
| language | eng |
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| source | NRC Research Press; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Free Full-Text Journals in Chemistry |
| title | Photo-CIDNP Studies of 2-Butanone and 3-Pentanone in Solution |
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