ESTUDO TEÓRICO DA INTERAÇÃO ENTRE HIDRAZINA E COMPLEXOS TETRAAZAMACROCICLOS DE FERRO E MANGANÊS.
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFMA |
Texto Completo: | https://tedebc.ufma.br/jspui/handle/tede/tede/2167 |
Resumo: | In this work a theoretical study was carried out by DFT using the B3LYP functional with set of LANL2DZ / 6-31G* base functions for interaction of hydrazine and iron and manganese metal complexes. The calculations for the system were performed by the Gaussian 09 program to verify parameters such as: bond length and angles, charge distribution, electron population, vibrational frequencies and binding order for hydrazine, complexes and adducts (complex-hydrazine interaction). The complexes studied were tetraaza[14]anulene ligands (TAA: Tetraaza[14]anulene; DBTAA: Dibenzo[b,i]-[1,4,8,11]-tetraaza[14] anulene; TMTAA: 5,7,12,14-tetramethyl-tetraaza [14] anulene; TMDBTAA1: 5,7,12,14-tetramethyl-dibenzo[b,i]-[1,4,8,11]-tetraaza[14]anulene and TMDBTAA2: 2,3,9,10-tetramethyl-dibenzo[b,i]-[1,4,8,11]-tetraaza[14]anulene), porphyrin (P) and phthalocyanine (Pc) at their most stable spin multiplicities. Calculations showed that the most stable multiplicity of the iron complexes was triplet and for the manganese the quartet, except for the MnP complex which was sextet. After interaction with the hydrazine, the more stable multiplicity of the FeTAA'sN2H3 -adducts passed to the quintet and that of the adducts MnTAA's- N2H3 -passed to sextet. The Fe-porphyrin adduct changed its multiplicity to quintet and that of Mn remained sextet. Already the iron phthalocyanine adduct changed the multiplicity to quintet and that of Mn to doublet. The analyzed parameters show a tendency for oxidation, since it was verified that between the nitrogen atoms (N1–N2) of the complexed hydrazine there was decrease in bond length, increase of Mulliken and NBO charges and decrease of the electron population after formation of adducts. However, the most favorable complexes for the redox process were phthalocyanines and porphyrins, which also had lower HOMO-LUMO energy gap and higher catalytic activity compared to tetraaza [14] anulenes. |
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VARELA JÚNIOR, Jaldyr de Jesus Gomes666.873.227-20VARELA JÚNIOR, Jaldyr de Jesus Gomes666.873.227-20BEZERRA, Cícero Wellington Britohttp://lattes.cnpq.br/1474300723265204MOREIRA, Edvanhttp://lattes.cnpq.br/9406912742121871773.685.683-49http://lattes.cnpq.br/2955579113461800SILVA, Francivaldo Santos da2018-04-13T13:36:14Z2018-02-23Silva, Francivaldo Santos da. Estudo Teórico da interação entre hidrazina e compexos tetraazamacrociclos de ferro e manganês. 2018. [ 70 folhas]. Dissertação( PROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA/CCET) - Universidade Federal do Maranhão, [São Luís].https://tedebc.ufma.br/jspui/handle/tede/tede/2167In this work a theoretical study was carried out by DFT using the B3LYP functional with set of LANL2DZ / 6-31G* base functions for interaction of hydrazine and iron and manganese metal complexes. The calculations for the system were performed by the Gaussian 09 program to verify parameters such as: bond length and angles, charge distribution, electron population, vibrational frequencies and binding order for hydrazine, complexes and adducts (complex-hydrazine interaction). The complexes studied were tetraaza[14]anulene ligands (TAA: Tetraaza[14]anulene; DBTAA: Dibenzo[b,i]-[1,4,8,11]-tetraaza[14] anulene; TMTAA: 5,7,12,14-tetramethyl-tetraaza [14] anulene; TMDBTAA1: 5,7,12,14-tetramethyl-dibenzo[b,i]-[1,4,8,11]-tetraaza[14]anulene and TMDBTAA2: 2,3,9,10-tetramethyl-dibenzo[b,i]-[1,4,8,11]-tetraaza[14]anulene), porphyrin (P) and phthalocyanine (Pc) at their most stable spin multiplicities. Calculations showed that the most stable multiplicity of the iron complexes was triplet and for the manganese the quartet, except for the MnP complex which was sextet. After interaction with the hydrazine, the more stable multiplicity of the FeTAA'sN2H3 -adducts passed to the quintet and that of the adducts MnTAA's- N2H3 -passed to sextet. The Fe-porphyrin adduct changed its multiplicity to quintet and that of Mn remained sextet. Already the iron phthalocyanine adduct changed the multiplicity to quintet and that of Mn to doublet. The analyzed parameters show a tendency for oxidation, since it was verified that between the nitrogen atoms (N1–N2) of the complexed hydrazine there was decrease in bond length, increase of Mulliken and NBO charges and decrease of the electron population after formation of adducts. However, the most favorable complexes for the redox process were phthalocyanines and porphyrins, which also had lower HOMO-LUMO energy gap and higher catalytic activity compared to tetraaza [14] anulenes.Neste trabalho foi realizado um estudo teórico por DFT usando o funcional B3LYP com conjunto funções de base LANL2DZ/6-31G* para interação da hidrazina e complexos metálicos de ferro e manganês. Os cálculos para o sistema foram realizados pelo programa Gaussian 09 para verificar parâmetros como: comprimento e ângulos de ligação, distribuição de cargas, população de elétrons, frequências vibracionais e ordem de ligação para hidrazina, complexos e adutos (interação complexos–hidrazina). Os complexos estudados foram dos ligantes tetraaza[14]anulenos (TAA: Tetraaza[14]anuleno; DBTAA: Dibenzo[b,i]-[1,4,8,11]-tetraaza[14]anuleno; TMTAA: 5,7,12,14-tetrametil-tetraaza[14]anuleno; TMDBTAA1: 5,7,12,14-tetrametil-dibenzo[b,i]-[1,4,8,11]-tetraaza[14]anuleno e TMDBTAA2: 2,3,9,10-tetrametil-dibenzo[b,i]-[1,4,8,11]-tetraaza[14]anuleno), porfirina (P) e ftalocianina (Pc) em suas multiplicidades de spin mais estáveis. Os cálculos demonstraram que a multiplicidade mais estável dos complexos de ferro foi tripleto e para o manganês o quarteto, exceto para o complexo MnP que foi sexteto. Após interação com a hidrazina, a multiplicidade mais estável dos adutos de FeTAA’s–N2H3 -passou para quinteto e a dos adutos MnTAA’s–N2H3 -passou para sexteto. O aduto de porfirina de Fe alterou sua multiplicidade para quinteto e o de Mn manteve-se sexteto. Já o aduto de ftalocianina de ferro mudou a multiplicidade para quinteto e o de Mn para dupleto. Os parâmetros analisados mostram uma tendência para oxidação, pois, foi verificado que entre os átomos de nitrogênios (N1–N2) da hidrazina complexada ocorreu diminuição no comprimento de ligação, aumento das cargas de Mulliken e NBO e diminuição da população de elétrons após formação dos adutos. No entanto, os complexos mais favoráveis para o processo redox foram a ftalocianinas e porfirinas que também apresentaram menores gap de energia HOMO-LUMO e maior atividade catalítica frente aos tetraaza[14]anulenos.Submitted by Maria Aparecida (cidazen@gmail.com) on 2018-04-13T13:36:14Z No. of bitstreams: 1 Francivaldo Santos da Silva.pdf: 3046426 bytes, checksum: 40ac4c8ba669d0e7a19ed0570d8fee65 (MD5)Made available in DSpace on 2018-04-13T13:36:14Z (GMT). No. of bitstreams: 1 Francivaldo Santos da Silva.pdf: 3046426 bytes, checksum: 40ac4c8ba669d0e7a19ed0570d8fee65 (MD5) Previous issue date: 2018-02-23application/pdfporUniversidade Federal do MaranhãoPROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA/CCETUFMABrasilDEPARTAMENTO DE QUÍMICA/CCETHidrazina; Teoria do Funcional da Densidade; Complexos macrociclosHydrazine; Density Functional Theory; Complexes macrocyclesEletroanalítica.ESTUDO TEÓRICO DA INTERAÇÃO ENTRE HIDRAZINA E COMPLEXOS TETRAAZAMACROCICLOS DE FERRO E MANGANÊS.THEORETICAL STUDY of the INTERACTION BETWEEN HYDRAZINE AND TETRAAZAMACROCICLOS COMPLEXES OF IRON AND MANGANESE.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFMAinstname:Universidade Federal do Maranhão (UFMA)instacron:UFMAORIGINALFrancivaldo Santos da Silva.pdfFrancivaldo Santos da Silva.pdfapplication/pdf3046426http://tedebc.ufma.br:8080/bitstream/tede/2167/2/Francivaldo+Santos+da+Silva.pdf40ac4c8ba669d0e7a19ed0570d8fee65MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82255http://tedebc.ufma.br:8080/bitstream/tede/2167/1/license.txt97eeade1fce43278e63fe063657f8083MD51tede/21672018-04-13 10:36:14.975oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttps://tedebc.ufma.br/jspui/PUBhttp://tedebc.ufma.br:8080/oai/requestrepositorio@ufma.br||repositorio@ufma.bropendoar:21312018-04-13T13:36:14Biblioteca Digital de Teses e Dissertações da UFMA - Universidade Federal do Maranhão (UFMA)false |
dc.title.por.fl_str_mv |
ESTUDO TEÓRICO DA INTERAÇÃO ENTRE HIDRAZINA E COMPLEXOS TETRAAZAMACROCICLOS DE FERRO E MANGANÊS. |
dc.title.alternative.eng.fl_str_mv |
THEORETICAL STUDY of the INTERACTION BETWEEN HYDRAZINE AND TETRAAZAMACROCICLOS COMPLEXES OF IRON AND MANGANESE. |
title |
ESTUDO TEÓRICO DA INTERAÇÃO ENTRE HIDRAZINA E COMPLEXOS TETRAAZAMACROCICLOS DE FERRO E MANGANÊS. |
spellingShingle |
ESTUDO TEÓRICO DA INTERAÇÃO ENTRE HIDRAZINA E COMPLEXOS TETRAAZAMACROCICLOS DE FERRO E MANGANÊS. SILVA, Francivaldo Santos da Hidrazina; Teoria do Funcional da Densidade; Complexos macrociclos Hydrazine; Density Functional Theory; Complexes macrocycles Eletroanalítica. |
title_short |
ESTUDO TEÓRICO DA INTERAÇÃO ENTRE HIDRAZINA E COMPLEXOS TETRAAZAMACROCICLOS DE FERRO E MANGANÊS. |
title_full |
ESTUDO TEÓRICO DA INTERAÇÃO ENTRE HIDRAZINA E COMPLEXOS TETRAAZAMACROCICLOS DE FERRO E MANGANÊS. |
title_fullStr |
ESTUDO TEÓRICO DA INTERAÇÃO ENTRE HIDRAZINA E COMPLEXOS TETRAAZAMACROCICLOS DE FERRO E MANGANÊS. |
title_full_unstemmed |
ESTUDO TEÓRICO DA INTERAÇÃO ENTRE HIDRAZINA E COMPLEXOS TETRAAZAMACROCICLOS DE FERRO E MANGANÊS. |
title_sort |
ESTUDO TEÓRICO DA INTERAÇÃO ENTRE HIDRAZINA E COMPLEXOS TETRAAZAMACROCICLOS DE FERRO E MANGANÊS. |
author |
SILVA, Francivaldo Santos da |
author_facet |
SILVA, Francivaldo Santos da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
VARELA JÚNIOR, Jaldyr de Jesus Gomes |
dc.contributor.advisor1ID.fl_str_mv |
666.873.227-20 |
dc.contributor.referee1.fl_str_mv |
VARELA JÚNIOR, Jaldyr de Jesus Gomes |
dc.contributor.referee1ID.fl_str_mv |
666.873.227-20 |
dc.contributor.referee2.fl_str_mv |
BEZERRA, Cícero Wellington Brito |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/1474300723265204 |
dc.contributor.referee3.fl_str_mv |
MOREIRA, Edvan |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/9406912742121871 |
dc.contributor.authorID.fl_str_mv |
773.685.683-49 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/2955579113461800 |
dc.contributor.author.fl_str_mv |
SILVA, Francivaldo Santos da |
contributor_str_mv |
VARELA JÚNIOR, Jaldyr de Jesus Gomes VARELA JÚNIOR, Jaldyr de Jesus Gomes BEZERRA, Cícero Wellington Brito MOREIRA, Edvan |
dc.subject.por.fl_str_mv |
Hidrazina; Teoria do Funcional da Densidade; Complexos macrociclos |
topic |
Hidrazina; Teoria do Funcional da Densidade; Complexos macrociclos Hydrazine; Density Functional Theory; Complexes macrocycles Eletroanalítica. |
dc.subject.eng.fl_str_mv |
Hydrazine; Density Functional Theory; Complexes macrocycles |
dc.subject.cnpq.fl_str_mv |
Eletroanalítica. |
description |
In this work a theoretical study was carried out by DFT using the B3LYP functional with set of LANL2DZ / 6-31G* base functions for interaction of hydrazine and iron and manganese metal complexes. The calculations for the system were performed by the Gaussian 09 program to verify parameters such as: bond length and angles, charge distribution, electron population, vibrational frequencies and binding order for hydrazine, complexes and adducts (complex-hydrazine interaction). The complexes studied were tetraaza[14]anulene ligands (TAA: Tetraaza[14]anulene; DBTAA: Dibenzo[b,i]-[1,4,8,11]-tetraaza[14] anulene; TMTAA: 5,7,12,14-tetramethyl-tetraaza [14] anulene; TMDBTAA1: 5,7,12,14-tetramethyl-dibenzo[b,i]-[1,4,8,11]-tetraaza[14]anulene and TMDBTAA2: 2,3,9,10-tetramethyl-dibenzo[b,i]-[1,4,8,11]-tetraaza[14]anulene), porphyrin (P) and phthalocyanine (Pc) at their most stable spin multiplicities. Calculations showed that the most stable multiplicity of the iron complexes was triplet and for the manganese the quartet, except for the MnP complex which was sextet. After interaction with the hydrazine, the more stable multiplicity of the FeTAA'sN2H3 -adducts passed to the quintet and that of the adducts MnTAA's- N2H3 -passed to sextet. The Fe-porphyrin adduct changed its multiplicity to quintet and that of Mn remained sextet. Already the iron phthalocyanine adduct changed the multiplicity to quintet and that of Mn to doublet. The analyzed parameters show a tendency for oxidation, since it was verified that between the nitrogen atoms (N1–N2) of the complexed hydrazine there was decrease in bond length, increase of Mulliken and NBO charges and decrease of the electron population after formation of adducts. However, the most favorable complexes for the redox process were phthalocyanines and porphyrins, which also had lower HOMO-LUMO energy gap and higher catalytic activity compared to tetraaza [14] anulenes. |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-04-13T13:36:14Z |
dc.date.issued.fl_str_mv |
2018-02-23 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Silva, Francivaldo Santos da. Estudo Teórico da interação entre hidrazina e compexos tetraazamacrociclos de ferro e manganês. 2018. [ 70 folhas]. Dissertação( PROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA/CCET) - Universidade Federal do Maranhão, [São Luís]. |
dc.identifier.uri.fl_str_mv |
https://tedebc.ufma.br/jspui/handle/tede/tede/2167 |
identifier_str_mv |
Silva, Francivaldo Santos da. Estudo Teórico da interação entre hidrazina e compexos tetraazamacrociclos de ferro e manganês. 2018. [ 70 folhas]. Dissertação( PROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA/CCET) - Universidade Federal do Maranhão, [São Luís]. |
url |
https://tedebc.ufma.br/jspui/handle/tede/tede/2167 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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dc.publisher.none.fl_str_mv |
Universidade Federal do Maranhão |
dc.publisher.program.fl_str_mv |
PROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA/CCET |
dc.publisher.initials.fl_str_mv |
UFMA |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
DEPARTAMENTO DE QUÍMICA/CCET |
publisher.none.fl_str_mv |
Universidade Federal do Maranhão |
dc.source.none.fl_str_mv |
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