Enthalpies of solution of some L-α-amino acids in aqueous solutions of urea at 298.15 K
The standard molar enthalpies of solution of glycine, L-α-alanine, L-α-valine and L-α-leucine in aqueous solutions of urea at 298.15 K were determined by calorimetry. The results obtained were used to calculate the heterogeneous enthalpic interaction coefficients between the zwitterions of the L-α-a...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 1998, Vol.54 (1), p.265-269 |
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| container_title | Journal of thermal analysis and calorimetry |
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| creator | PAŁECZ, B |
| description | The standard molar enthalpies of solution of glycine, L-α-alanine, L-α-valine and L-α-leucine in aqueous solutions of urea at 298.15 K were determined by calorimetry. The results obtained were used to calculate the heterogeneous enthalpic interaction coefficients between the zwitterions of the L-α-amino acids and a molecule of urea in water. The values of the resultant enthalpic interaction coefficients are interpreted in terms of the effects of the hydrophobic alkyl groups on the interactions between the zwitterions of the L-α-amino acids and a polar molecule of urea in aqueous solutions. |
| doi_str_mv | 10.1023/A:1010110128337 |
| format | Article |
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The results obtained were used to calculate the heterogeneous enthalpic interaction coefficients between the zwitterions of the L-α-amino acids and a molecule of urea in water. The values of the resultant enthalpic interaction coefficients are interpreted in terms of the effects of the hydrophobic alkyl groups on the interactions between the zwitterions of the L-α-amino acids and a polar molecule of urea in aqueous solutions.</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>DOI: 10.1023/A:1010110128337</identifier><language>eng</language><publisher>Dordrecht: Springer</publisher><subject>Alanine ; Amino acids ; Aqueous solutions ; Chemistry ; Enthalpy ; Exact sciences and technology ; General and physical chemistry ; Glycine ; Leucine ; Mathematical analysis ; Solution properties ; Solutions ; Ureas ; Valine ; Zwitterions</subject><ispartof>Journal of thermal analysis and calorimetry, 1998, Vol.54 (1), p.265-269</ispartof><rights>1999 INIST-CNRS</rights><rights>Kluwer Academic Publishers 1998.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,310,314,780,784,789,790,4050,4051,23930,23931,25140,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1816184$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>PAŁECZ, B</creatorcontrib><title>Enthalpies of solution of some L-α-amino acids in aqueous solutions of urea at 298.15 K</title><title>Journal of thermal analysis and calorimetry</title><description>The standard molar enthalpies of solution of glycine, L-α-alanine, L-α-valine and L-α-leucine in aqueous solutions of urea at 298.15 K were determined by calorimetry. The results obtained were used to calculate the heterogeneous enthalpic interaction coefficients between the zwitterions of the L-α-amino acids and a molecule of urea in water. The values of the resultant enthalpic interaction coefficients are interpreted in terms of the effects of the hydrophobic alkyl groups on the interactions between the zwitterions of the L-α-amino acids and a polar molecule of urea in aqueous solutions.</description><subject>Alanine</subject><subject>Amino acids</subject><subject>Aqueous solutions</subject><subject>Chemistry</subject><subject>Enthalpy</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Glycine</subject><subject>Leucine</subject><subject>Mathematical analysis</subject><subject>Solution properties</subject><subject>Solutions</subject><subject>Ureas</subject><subject>Valine</subject><subject>Zwitterions</subject><issn>1388-6150</issn><issn>1588-2926</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><recordid>eNo9UMtOwzAQtBBIlMKZqyW4pnj9qs2tqspDVOICErdo4zjCVRqHODnwWfwI34QFFdqVdg4zO7NLyCWwBTAubla3wHLl5kaI5RGZgTKm4Jbr44xFxhoUOyVnKe0YY9YymJG3TTe-Y9sHn2hsaIrtNIbY_eG9p9vi-6vAfegiRRfqRENH8WPycUr_5F_lNHikOFJuzQIUfTonJw22yV8c5py83m1e1g_F9vn-cb3aFj0HNhbgK-nRKqkkWl_bJt9Qcb2snRUVr5qcXi-9Elx4x52zXlc1WInSciOVADEnV397-yHmXGksd3EaumxZZqlkWuYPZNb1gYXJYdsM2LmQyn4Iexw-SzCgwUjxAyXrXso</recordid><startdate>1998</startdate><enddate>1998</enddate><creator>PAŁECZ, B</creator><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope></search><sort><creationdate>1998</creationdate><title>Enthalpies of solution of some L-α-amino acids in aqueous solutions of urea at 298.15 K</title><author>PAŁECZ, B</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p210t-1eb4ea95454a9ed9f010b267dc93b2bf92667e5323ec2cc9e6bd194a492845313</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Alanine</topic><topic>Amino acids</topic><topic>Aqueous solutions</topic><topic>Chemistry</topic><topic>Enthalpy</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Glycine</topic><topic>Leucine</topic><topic>Mathematical analysis</topic><topic>Solution properties</topic><topic>Solutions</topic><topic>Ureas</topic><topic>Valine</topic><topic>Zwitterions</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>PAŁECZ, B</creatorcontrib><collection>Pascal-Francis</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>PAŁECZ, B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enthalpies of solution of some L-α-amino acids in aqueous solutions of urea at 298.15 K</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><date>1998</date><risdate>1998</risdate><volume>54</volume><issue>1</issue><spage>265</spage><epage>269</epage><pages>265-269</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><abstract>The standard molar enthalpies of solution of glycine, L-α-alanine, L-α-valine and L-α-leucine in aqueous solutions of urea at 298.15 K were determined by calorimetry. The results obtained were used to calculate the heterogeneous enthalpic interaction coefficients between the zwitterions of the L-α-amino acids and a molecule of urea in water. The values of the resultant enthalpic interaction coefficients are interpreted in terms of the effects of the hydrophobic alkyl groups on the interactions between the zwitterions of the L-α-amino acids and a polar molecule of urea in aqueous solutions.</abstract><cop>Dordrecht</cop><pub>Springer</pub><doi>10.1023/A:1010110128337</doi><tpages>5</tpages></addata></record> |
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| issn | 1388-6150 1588-2926 |
| language | eng |
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| source | SpringerNature Journals |
| subjects | Alanine Amino acids Aqueous solutions Chemistry Enthalpy Exact sciences and technology General and physical chemistry Glycine Leucine Mathematical analysis Solution properties Solutions Ureas Valine Zwitterions |
| title | Enthalpies of solution of some L-α-amino acids in aqueous solutions of urea at 298.15 K |
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