Publicação
Crystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal study
| Resumo: | The study’s aim was to synthesize a crystalline film formed by L-threonine crystals complexed with Cu2+ ions (LTCu) dispersed in a galactomannan (Gal) solution as well as to characterize its structural, vibrational, and thermal properties. Gal(LTCu) films were prepared by the addition of copper II L-threoninate crystals in concentrations of 0.25, 0.50, and 0.75 in 2%Gal solution. To characterize the Gal(LTCu) properties, we used X-ray diffraction (XRD), UV–Vis and Raman spectroscopy, thermogravimetry, and thermal analyses (TG- DTA). XRD showed that the Gal(LTCu) films are crystalline and have acquired coloration similar to the one of LTCu crystal. The UV–Vis spectra revealed that the films tend to assume a square planar conformation due to Jahn Teller effect. Bands related to the interaction between the metal ion with the organic compounds were observed through the Raman spectra. TG-DTA showed that the films exhibit low thermal stability due to the dehydration process |
|---|---|
| Autores principais: | Oliveira Neto, João G. |
| Outros Autores: | Cavalcante, Lincoln A.; Gomes, Eduardo S.; Dos Santos, Adenilson O.; Sousa, Francisco F; Mendes, Fernando 1973-; Macêdo, Ana Angélica M |
| Assunto: | Crystalline films Threonine Copper Galactomannan solution |
| Ano: | 2019 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Coimbra |
| Idioma: | inglês |
| Origem: | Instituto Politécnico de Coimbra |
| _version_ | 1868800996529930240 |
|---|---|
| author | Oliveira Neto, João G. |
| author2 | Cavalcante, Lincoln A. Gomes, Eduardo S. Dos Santos, Adenilson O. Sousa, Francisco F Mendes, Fernando 1973- Macêdo, Ana Angélica M |
| author2_role | author author author author author author |
| author_facet | Oliveira Neto, João G. Cavalcante, Lincoln A. Gomes, Eduardo S. Dos Santos, Adenilson O. Sousa, Francisco F Mendes, Fernando 1973- Macêdo, Ana Angélica M |
| author_role | author |
| contributor_name_str_mv | Repositório Comum |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Oliveira Neto, João G.\"},{\"Person.name\":\"Cavalcante, Lincoln A.\"},{\"Person.name\":\"Gomes, Eduardo S.\"},{\"Person.name\":\"Dos Santos, Adenilson O.\"},{\"Person.name\":\"Sousa, Francisco F\"},{\"Person.name\":\"Mendes, Fernando 1973-\"},{\"Person.name\":\"Macêdo, Ana Angélica M\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Comum |
| datacite.creators.creator.creatorName.fl_str_mv | Oliveira Neto, João G. Cavalcante, Lincoln A. Gomes, Eduardo S. Dos Santos, Adenilson O. Sousa, Francisco F Mendes, Fernando 1973- Macêdo, Ana Angélica M |
| datacite.date.Accepted.fl_str_mv | 2019-10-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2020-04-17T21:39:36Z |
| datacite.date.embargoed.fl_str_mv | 2020-04-17T21:39:36Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Crystalline films Threonine Copper Galactomannan solution |
| datacite.titles.title.fl_str_mv | Crystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal study |
| dc.contributor.none.fl_str_mv | Repositório Comum |
| dc.creator.none.fl_str_mv | Oliveira Neto, João G. Cavalcante, Lincoln A. Gomes, Eduardo S. Dos Santos, Adenilson O. Sousa, Francisco F Mendes, Fernando 1973- Macêdo, Ana Angélica M |
| dc.date.Accepted.fl_str_mv | 2019-10-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2020-04-17T21:39:36Z |
| dc.date.embargoed.fl_str_mv | 2020-04-17T21:39:36Z |
| dc.format.none.fl_str_mv | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.26/32016 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Wiley |
| dc.rights.cclincense.fl_str_mv | http://creativecommons.org/licenses/by-nc-sa/4.0/ |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Crystalline films Threonine Copper Galactomannan solution |
| dc.title.fl_str_mv | Crystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal study |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The study’s aim was to synthesize a crystalline film formed by L-threonine crystals complexed with Cu2+ ions (LTCu) dispersed in a galactomannan (Gal) solution as well as to characterize its structural, vibrational, and thermal properties. Gal(LTCu) films were prepared by the addition of copper II L-threoninate crystals in concentrations of 0.25, 0.50, and 0.75 in 2%Gal solution. To characterize the Gal(LTCu) properties, we used X-ray diffraction (XRD), UV–Vis and Raman spectroscopy, thermogravimetry, and thermal analyses (TG- DTA). XRD showed that the Gal(LTCu) films are crystalline and have acquired coloration similar to the one of LTCu crystal. The UV–Vis spectra revealed that the films tend to assume a square planar conformation due to Jahn Teller effect. Bands related to the interaction between the metal ion with the organic compounds were observed through the Raman spectra. TG-DTA showed that the films exhibit low thermal stability due to the dehydration process |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://comum.rcaap.pt/bitstreams/bddb3d0d-be01-43a7-a70f-815440ad6801/download |
| id | ipc_f4ace04e2ca910adbd55561ade52cfb8 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.26/32016 |
| instacron_str | ipc |
| institution | Instituto Politécnico de Coimbra |
| instname_str | Instituto Politécnico de Coimbra |
| language | eng |
| network_acronym_str | ipc |
| network_name_str | Instituto Politécnico de Coimbra |
| oai_identifier_str | oai:comum.rcaap.pt:10400.26/32016 |
| organization_str_mv | urn:organizationAcronym:ipc |
| person_str_mv | Oliveira Neto, João G. Cavalcante, Lincoln A. Gomes, Eduardo S. Dos Santos, Adenilson O. Sousa, Francisco F Mendes, Fernando 1973- Macêdo, Ana Angélica M |
| publishDate | 2019 |
| publisher.none.fl_str_mv | Wiley |
| reponame_str | Instituto Politécnico de Coimbra |
| repository_id_str | urn:repositoryAcronym:ipc |
| service_str_mv | urn:repositoryAcronym:ipc |
| spelling | engWileypt_PTThe study’s aim was to synthesize a crystalline film formed by L-threonine crystals complexed with Cu2+ ions (LTCu) dispersed in a galactomannan (Gal) solution as well as to characterize its structural, vibrational, and thermal properties. Gal(LTCu) films were prepared by the addition of copper II L-threoninate crystals in concentrations of 0.25, 0.50, and 0.75 in 2%Gal solution. To characterize the Gal(LTCu) properties, we used X-ray diffraction (XRD), UV–Vis and Raman spectroscopy, thermogravimetry, and thermal analyses (TG- DTA). XRD showed that the Gal(LTCu) films are crystalline and have acquired coloration similar to the one of LTCu crystal. The UV–Vis spectra revealed that the films tend to assume a square planar conformation due to Jahn Teller effect. Bands related to the interaction between the metal ion with the organic compounds were observed through the Raman spectra. TG-DTA showed that the films exhibit low thermal stability due to the dehydration processapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentpt_PTCrystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal studyOliveira Neto, João G.Cavalcante, Lincoln A.Gomes, Eduardo S.Dos Santos, Adenilson O.Sousa, Francisco FMendes, Fernando 1973-Macêdo, Ana Angélica MHostingInstitutionOrganizationalRepositório Comume-mailmailto:comum@rcaap.ptcomum@rcaap.ptISSNIsPartOf1548-2634DOIIsPartOf10.1002/pen.252602020-04-17T21:39:36Z2019-10-012019-10-01T00:00:00ZHandlehttp://hdl.handle.net/10400.26/32016http://purl.org/coar/access_right/c_abf2open accessCrystalline filmsThreonineCopperGalactomannan solution15475 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal article2019-10-01http://creativecommons.org/licenses/by-nc-sa/4.0/http://purl.org/coar/access_right/c_abf2application/vnd.openxmlformats-officedocument.wordprocessingml.documentfulltexthttps://comum.rcaap.pt/bitstreams/bddb3d0d-be01-43a7-a70f-815440ad6801/downloadPolymer Engineering & Science6017177 |
| spellingShingle | Crystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal study Oliveira Neto, João G. Crystalline films Threonine Copper Galactomannan solution |
| status | SINGLETON |
| subject.fl_str_mv | Crystalline films Threonine Copper Galactomannan solution |
| title | Crystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal study |
| title_full | Crystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal study |
| title_fullStr | Crystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal study |
| title_full_unstemmed | Crystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal study |
| title_short | Crystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal study |
| title_sort | Crystalline films of L‐threonine complexed with copper (II) dispersed in a Galactomannan solution: a structural, vibrational, and thermal study |
| topic | Crystalline films Threonine Copper Galactomannan solution |
| topic_facet | Crystalline films Threonine Copper Galactomannan solution |
| url | http://hdl.handle.net/10400.26/32016 |
| visible | 1 |