Synthesis and Characterization of Five New Tetrakis(N-phenylacetamidato) Dirhodium(II) Amine Complexes and One Molybdenum Cofactor Described Crystallographically
Six new crystal structures were determined using a Rigaku Mercurcy 375/MCCD(XtaLab mini) diffractometer. The structure of a molybdenum cofactor was solved resulting in an R1 (R1 = Σ ||Fo| - |Fc|| / Σ |Fo|) of 3.61% despite the presence of a disordered DMSO molecule. New Tetrakis(N-phenylacetamidato)...
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ndltd-ETSU-oai-dc.etsu.edu-etd-38482019-05-16T04:50:32Z Synthesis and Characterization of Five New Tetrakis(N-phenylacetamidato) Dirhodium(II) Amine Complexes and One Molybdenum Cofactor Described Crystallographically Harris, Cragin K Six new crystal structures were determined using a Rigaku Mercurcy 375/MCCD(XtaLab mini) diffractometer. The structure of a molybdenum cofactor was solved resulting in an R1 (R1 = Σ ||Fo| - |Fc|| / Σ |Fo|) of 3.61% despite the presence of a disordered DMSO molecule. New Tetrakis(N-phenylacetamidato) Dirhodium(II) complexes were synthesized and characterized. Two 2,2-cis-[Rh2(NPhCOCH3)4]•(C3H4N2)x where x= 1 or 2 were successfully crystallized and solved with R1 values below 5%. Additional studies were conducted via NMR to observe formation of both products. Three potential catalysts were synthesized starting with 3,1-[Rh2(NPhCOCH3)4]. The resulting compounds were a mono adduct 3,1-[Rh2(NPhCOCH3)4]•(C3H4N2), and two dimer of dimers complexes with amine bridges 3,1-[Rh2(NPhCOCH3)4]2•(C8H6N2) and 3,1-[Rh2(NPhCOCH3)4]2•(C10H8N2). All three complexes were crystallized and solved with R1 values less than 10%. Additional NMR studies were conducted to elucidate solid and solution phase structures and to determine the possibility of additional amine bonds forming. 2015-05-01T07:00:00Z text application/pdf https://dc.etsu.edu/etd/2525 https://dc.etsu.edu/cgi/viewcontent.cgi?article=3848&context=etd Copyright by the authors. Electronic Theses and Dissertations eng Digital Commons @ East Tennessee State University X-ray Crystallography Dirhodium(II) Phenylacetamide Molybdenum Cofactor Catalyst Imidazole 4 4-Bipyridine 1 5-Naphthyridine Inorganic Chemistry |
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X-ray Crystallography Dirhodium(II) Phenylacetamide Molybdenum Cofactor Catalyst Imidazole 4 4-Bipyridine 1 5-Naphthyridine Inorganic Chemistry |
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X-ray Crystallography Dirhodium(II) Phenylacetamide Molybdenum Cofactor Catalyst Imidazole 4 4-Bipyridine 1 5-Naphthyridine Inorganic Chemistry Harris, Cragin K Synthesis and Characterization of Five New Tetrakis(N-phenylacetamidato) Dirhodium(II) Amine Complexes and One Molybdenum Cofactor Described Crystallographically |
description |
Six new crystal structures were determined using a Rigaku Mercurcy 375/MCCD(XtaLab mini) diffractometer. The structure of a molybdenum cofactor was solved resulting in an R1 (R1 = Σ ||Fo| - |Fc|| / Σ |Fo|) of 3.61% despite the presence of a disordered DMSO molecule. New Tetrakis(N-phenylacetamidato) Dirhodium(II) complexes were synthesized and characterized. Two 2,2-cis-[Rh2(NPhCOCH3)4]•(C3H4N2)x where x= 1 or 2 were successfully crystallized and solved with R1 values below 5%. Additional studies were conducted via NMR to observe formation of both products. Three potential catalysts were synthesized starting with 3,1-[Rh2(NPhCOCH3)4]. The resulting compounds were a mono adduct 3,1-[Rh2(NPhCOCH3)4]•(C3H4N2), and two dimer of dimers complexes with amine bridges 3,1-[Rh2(NPhCOCH3)4]2•(C8H6N2) and 3,1-[Rh2(NPhCOCH3)4]2•(C10H8N2). All three complexes were crystallized and solved with R1 values less than 10%. Additional NMR studies were conducted to elucidate solid and solution phase structures and to determine the possibility of additional amine bonds forming. |
author |
Harris, Cragin K |
author_facet |
Harris, Cragin K |
author_sort |
Harris, Cragin K |
title |
Synthesis and Characterization of Five New Tetrakis(N-phenylacetamidato) Dirhodium(II) Amine Complexes and One Molybdenum Cofactor Described Crystallographically |
title_short |
Synthesis and Characterization of Five New Tetrakis(N-phenylacetamidato) Dirhodium(II) Amine Complexes and One Molybdenum Cofactor Described Crystallographically |
title_full |
Synthesis and Characterization of Five New Tetrakis(N-phenylacetamidato) Dirhodium(II) Amine Complexes and One Molybdenum Cofactor Described Crystallographically |
title_fullStr |
Synthesis and Characterization of Five New Tetrakis(N-phenylacetamidato) Dirhodium(II) Amine Complexes and One Molybdenum Cofactor Described Crystallographically |
title_full_unstemmed |
Synthesis and Characterization of Five New Tetrakis(N-phenylacetamidato) Dirhodium(II) Amine Complexes and One Molybdenum Cofactor Described Crystallographically |
title_sort |
synthesis and characterization of five new tetrakis(n-phenylacetamidato) dirhodium(ii) amine complexes and one molybdenum cofactor described crystallographically |
publisher |
Digital Commons @ East Tennessee State University |
publishDate |
2015 |
url |
https://dc.etsu.edu/etd/2525 https://dc.etsu.edu/cgi/viewcontent.cgi?article=3848&context=etd |
work_keys_str_mv |
AT harriscragink synthesisandcharacterizationoffivenewtetrakisnphenylacetamidatodirhodiumiiaminecomplexesandonemolybdenumcofactordescribedcrystallographically |
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1719188421569675264 |