Heat capacities and thermodynamic properties of CoPc and CoTMPP
The low-temperature molar heat capacities of CoPc and CoTMPP were measured by temperature modulated differential scanning calorimetry (TMDSC) over the temperature range from 223 to 413 K for the first time. No phase transition or thermal anomaly was observed in the experimental temperature range for...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2008-03, Vol.91 (3), p.841-848 |
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| container_title | Journal of thermal analysis and calorimetry |
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| creator | Qiu, S. J. Chu, H. L. Zhang, J. Qi, Y. N. Sun, L. X. Xu, F. |
| description | The low-temperature molar heat capacities of CoPc and CoTMPP were measured by temperature modulated differential scanning calorimetry (TMDSC) over the temperature range from 223 to 413 K for the first time. No phase transition or thermal anomaly was observed in the experimental temperature range for CoPc. However, a structural change was found to be nonreversible for CoTMPP in the temperature range of 368–403 K, which was further validated by the results of IR and XRD. The molar enthalpy Δ
H
m
and entropy Δ
S
m
of phase transition of the CoTMPP were determined to be 3.301 kJ mol
−1
and 8.596 J K
−1
mol
−1
, respectively. The thermodynamic parameters of CoPc and CoTMPP such as entropy and enthalpy relative to reference temperature 298.15 K were derived based on the above molar heat capacity data. Moreover, the thermal stability of these two compounds was further investigated through TG measurements. Three steps of mass loss were observed in the TG curve for CoPc and five steps for CoTMPP. |
| doi_str_mv | 10.1007/s10973-007-8625-3 |
| format | Article |
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H
m
and entropy Δ
S
m
of phase transition of the CoTMPP were determined to be 3.301 kJ mol
−1
and 8.596 J K
−1
mol
−1
, respectively. The thermodynamic parameters of CoPc and CoTMPP such as entropy and enthalpy relative to reference temperature 298.15 K were derived based on the above molar heat capacity data. Moreover, the thermal stability of these two compounds was further investigated through TG measurements. Three steps of mass loss were observed in the TG curve for CoPc and five steps for CoTMPP.</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>EISSN: 1572-8943</identifier><identifier>DOI: 10.1007/s10973-007-8625-3</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Analytical Chemistry ; Chemistry ; Chemistry and Materials Science ; Coordination compounds ; Exact sciences and technology ; Inorganic Chemistry ; Inorganic chemistry and origins of life ; Measurement Science and Instrumentation ; Physical Chemistry ; Polymer Sciences ; Preparations and properties</subject><ispartof>Journal of thermal analysis and calorimetry, 2008-03, Vol.91 (3), p.841-848</ispartof><rights>Springer Science+Business Media, LLC. 2008</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-7f2774669825f0d49af25fcd27194898297e791fa44012caa909805c33bac8b43</citedby><cites>FETCH-LOGICAL-c349t-7f2774669825f0d49af25fcd27194898297e791fa44012caa909805c33bac8b43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10973-007-8625-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10973-007-8625-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20175793$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Qiu, S. J.</creatorcontrib><creatorcontrib>Chu, H. L.</creatorcontrib><creatorcontrib>Zhang, J.</creatorcontrib><creatorcontrib>Qi, Y. N.</creatorcontrib><creatorcontrib>Sun, L. X.</creatorcontrib><creatorcontrib>Xu, F.</creatorcontrib><title>Heat capacities and thermodynamic properties of CoPc and CoTMPP</title><title>Journal of thermal analysis and calorimetry</title><addtitle>J Therm Anal Calorim</addtitle><description>The low-temperature molar heat capacities of CoPc and CoTMPP were measured by temperature modulated differential scanning calorimetry (TMDSC) over the temperature range from 223 to 413 K for the first time. No phase transition or thermal anomaly was observed in the experimental temperature range for CoPc. However, a structural change was found to be nonreversible for CoTMPP in the temperature range of 368–403 K, which was further validated by the results of IR and XRD. The molar enthalpy Δ
H
m
and entropy Δ
S
m
of phase transition of the CoTMPP were determined to be 3.301 kJ mol
−1
and 8.596 J K
−1
mol
−1
, respectively. The thermodynamic parameters of CoPc and CoTMPP such as entropy and enthalpy relative to reference temperature 298.15 K were derived based on the above molar heat capacity data. Moreover, the thermal stability of these two compounds was further investigated through TG measurements. Three steps of mass loss were observed in the TG curve for CoPc and five steps for CoTMPP.</description><subject>Analytical Chemistry</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Coordination compounds</subject><subject>Exact sciences and technology</subject><subject>Inorganic Chemistry</subject><subject>Inorganic chemistry and origins of life</subject><subject>Measurement Science and Instrumentation</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><subject>Preparations and properties</subject><issn>1388-6150</issn><issn>1588-2926</issn><issn>1572-8943</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kL1OwzAURi0EElXpA7BlgS3gnyS2J4QioEhFZCizdevYEJTEwU6Hvj1OUzEy-cj33E_2h9A1wXcEY34fCJacpRFTUdA8ZWdoQXIhUippcR6ZRS5Iji_RKoRmhynBhcyFXKCHtYEx0TCAbsbGhAT6Ohm_jO9cfeiha3QyeDcYfxw6m5Su0kepdNu3qrpCFxbaYFanc4k-np-25TrdvL-8lo-bVLNMjim3lPOsKKSgucV1JsFG0DXlRGYi3kpuuCQWsgwTqgEklgLnmrEdaLHL2BLdzrnxNT97E0bVNUGbtoXeuH1QjMaQQtAoklnU3oXgjVWDbzrwB0WwmtpSc1tqwqktxeLOzSkcgobWeuh1E_4WKSY853Ly6OyFOOo_jVffbu_7-O9_wn8Bmg53uw</recordid><startdate>20080301</startdate><enddate>20080301</enddate><creator>Qiu, S. J.</creator><creator>Chu, H. L.</creator><creator>Zhang, J.</creator><creator>Qi, Y. N.</creator><creator>Sun, L. X.</creator><creator>Xu, F.</creator><general>Springer Netherlands</general><general>Springer</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20080301</creationdate><title>Heat capacities and thermodynamic properties of CoPc and CoTMPP</title><author>Qiu, S. J. ; Chu, H. L. ; Zhang, J. ; Qi, Y. N. ; Sun, L. X. ; Xu, F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c349t-7f2774669825f0d49af25fcd27194898297e791fa44012caa909805c33bac8b43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Analytical Chemistry</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Coordination compounds</topic><topic>Exact sciences and technology</topic><topic>Inorganic Chemistry</topic><topic>Inorganic chemistry and origins of life</topic><topic>Measurement Science and Instrumentation</topic><topic>Physical Chemistry</topic><topic>Polymer Sciences</topic><topic>Preparations and properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qiu, S. J.</creatorcontrib><creatorcontrib>Chu, H. L.</creatorcontrib><creatorcontrib>Zhang, J.</creatorcontrib><creatorcontrib>Qi, Y. N.</creatorcontrib><creatorcontrib>Sun, L. X.</creatorcontrib><creatorcontrib>Xu, F.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qiu, S. J.</au><au>Chu, H. L.</au><au>Zhang, J.</au><au>Qi, Y. N.</au><au>Sun, L. X.</au><au>Xu, F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Heat capacities and thermodynamic properties of CoPc and CoTMPP</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><stitle>J Therm Anal Calorim</stitle><date>2008-03-01</date><risdate>2008</risdate><volume>91</volume><issue>3</issue><spage>841</spage><epage>848</epage><pages>841-848</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><eissn>1572-8943</eissn><abstract>The low-temperature molar heat capacities of CoPc and CoTMPP were measured by temperature modulated differential scanning calorimetry (TMDSC) over the temperature range from 223 to 413 K for the first time. No phase transition or thermal anomaly was observed in the experimental temperature range for CoPc. However, a structural change was found to be nonreversible for CoTMPP in the temperature range of 368–403 K, which was further validated by the results of IR and XRD. The molar enthalpy Δ
H
m
and entropy Δ
S
m
of phase transition of the CoTMPP were determined to be 3.301 kJ mol
−1
and 8.596 J K
−1
mol
−1
, respectively. The thermodynamic parameters of CoPc and CoTMPP such as entropy and enthalpy relative to reference temperature 298.15 K were derived based on the above molar heat capacity data. Moreover, the thermal stability of these two compounds was further investigated through TG measurements. Three steps of mass loss were observed in the TG curve for CoPc and five steps for CoTMPP.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s10973-007-8625-3</doi><tpages>8</tpages></addata></record> |
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| subjects | Analytical Chemistry Chemistry Chemistry and Materials Science Coordination compounds Exact sciences and technology Inorganic Chemistry Inorganic chemistry and origins of life Measurement Science and Instrumentation Physical Chemistry Polymer Sciences Preparations and properties |
| title | Heat capacities and thermodynamic properties of CoPc and CoTMPP |
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