Dioxomolybdenum(VI) complexes of ONN chelating thiosemicarbazones: Crystallographic and spectroscopic (UV, IR and NMR) studies
Four new cis-dioxomolybdenum(VI) complexes of the closed formula [MoO2(L)CH3OH] have been obtained by the condensation of bis(acetylacetonato)dioxomolybdenum(VI) with S-allyl/propyl thiosemicarbazones in methanol. The compounds were identified with elemental analysis, and molecular characterization...
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Turkish Chemical Society
2021
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oai:doaj.org-article:45f9e48e5bdd4ac58e8b914715ff38702021-11-20T10:07:20Z Dioxomolybdenum(VI) complexes of ONN chelating thiosemicarbazones: Crystallographic and spectroscopic (UV, IR and NMR) studies https://doi.org/10.18596/jotcsa.9893182149-0120https://doaj.org/article/45f9e48e5bdd4ac58e8b914715ff38702021-11-01T00:00:00Zhttps://dergipark.org.tr/tr/pub/jotcsa/issue/64621/989318https://doaj.org/toc/2149-0120Four new cis-dioxomolybdenum(VI) complexes of the closed formula [MoO2(L)CH3OH] have been obtained by the condensation of bis(acetylacetonato)dioxomolybdenum(VI) with S-allyl/propyl thiosemicarbazones in methanol. The compounds were identified with elemental analysis, and molecular characterization by UV-Vis, FT-IR, 1H-NMR and 13C-NMR spectroscopies. Also, crystal structures of 1 and 2 were resolved by X-ray diffraction analysis. The single crystal studies indicated a distorted octahedral geometry for complexes. It was noticed that 1 crystallized in the monoclinic P21/c space group with Z=4, while 2 crystallized in tricilinic P-1 space group with Z=2. The O=Mo=O angles of 105.68(8)° (for 1) and 105.96(7)° (for 2) indicated the cis-dioxomolybdenum structure. The spectroscopic and crystallographic studies show that the thiosemicarbazone ligands are bound to cis-MoO22+ moiety as ONN tridentate agent and the 6th coordinated position of the molybdenum is located by the methanol molecule.Songül EĞLENCE BAKIRTurkish Chemical Societyarticlethiosemicarbazonedioxomolybdenum(vi) complexx-ray crystallographyspectroscopic studiesstructural analysisChemistryQD1-999ENJournal of the Turkish Chemical Society, Section A: Chemistry, Vol 8, Iss 4, Pp 1275 -1300 (2021) |
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thiosemicarbazone dioxomolybdenum(vi) complex x-ray crystallography spectroscopic studies structural analysis Chemistry QD1-999 |
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thiosemicarbazone dioxomolybdenum(vi) complex x-ray crystallography spectroscopic studies structural analysis Chemistry QD1-999 Songül EĞLENCE BAKIR Dioxomolybdenum(VI) complexes of ONN chelating thiosemicarbazones: Crystallographic and spectroscopic (UV, IR and NMR) studies |
description |
Four new cis-dioxomolybdenum(VI) complexes of the closed formula [MoO2(L)CH3OH] have been obtained by the condensation of bis(acetylacetonato)dioxomolybdenum(VI) with S-allyl/propyl thiosemicarbazones in methanol. The compounds were identified with elemental analysis, and molecular characterization by UV-Vis, FT-IR, 1H-NMR and 13C-NMR spectroscopies. Also, crystal structures of 1 and 2 were resolved by X-ray diffraction analysis. The single crystal studies indicated a distorted octahedral geometry for complexes. It was noticed that 1 crystallized in the monoclinic P21/c space group with Z=4, while 2 crystallized in tricilinic P-1 space group with Z=2. The O=Mo=O angles of 105.68(8)° (for 1) and 105.96(7)° (for 2) indicated the cis-dioxomolybdenum structure. The spectroscopic and crystallographic studies show that the thiosemicarbazone ligands are bound to cis-MoO22+ moiety as ONN tridentate agent and the 6th coordinated position of the molybdenum is located by the methanol molecule. |
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article |
author |
Songül EĞLENCE BAKIR |
author_facet |
Songül EĞLENCE BAKIR |
author_sort |
Songül EĞLENCE BAKIR |
title |
Dioxomolybdenum(VI) complexes of ONN chelating thiosemicarbazones: Crystallographic and spectroscopic (UV, IR and NMR) studies |
title_short |
Dioxomolybdenum(VI) complexes of ONN chelating thiosemicarbazones: Crystallographic and spectroscopic (UV, IR and NMR) studies |
title_full |
Dioxomolybdenum(VI) complexes of ONN chelating thiosemicarbazones: Crystallographic and spectroscopic (UV, IR and NMR) studies |
title_fullStr |
Dioxomolybdenum(VI) complexes of ONN chelating thiosemicarbazones: Crystallographic and spectroscopic (UV, IR and NMR) studies |
title_full_unstemmed |
Dioxomolybdenum(VI) complexes of ONN chelating thiosemicarbazones: Crystallographic and spectroscopic (UV, IR and NMR) studies |
title_sort |
dioxomolybdenum(vi) complexes of onn chelating thiosemicarbazones: crystallographic and spectroscopic (uv, ir and nmr) studies |
publisher |
Turkish Chemical Society |
publishDate |
2021 |
url |
https://doi.org/10.18596/jotcsa.989318 https://doaj.org/article/45f9e48e5bdd4ac58e8b914715ff3870 |
work_keys_str_mv |
AT songuleglencebakir dioxomolybdenumvicomplexesofonnchelatingthiosemicarbazonescrystallographicandspectroscopicuvirandnmrstudies |
_version_ |
1718419419290402816 |