Synthesis and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution, where L = tris (3-methylphenyl) arsine, tris (M-fluorophenyl) phosphine and tris [3, 5-Bis (trifluoromethyl) phenyl] phosphine
The aim of the research study is to substitute the carbonyl ligand on chromium complexes in order to result in novel organometallic monocrystal compounds for crystal structure elucidation followed by physical and chemical characterization. Derivatives of Chromium Carbonyl are prepared by reaction wi...
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| Format: | Undergraduates Project Papers |
| Language: | English |
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2012
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| Online Access: | http://umpir.ump.edu.my/id/eprint/7812/1/MUHAMMAD_YAZID_BIN_MOHAMAD_YUNUS.PDF |
| _version_ | 1825822003432521728 |
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| author | Muhammad Yazid, Mohamad Yunus |
| author_facet | Muhammad Yazid, Mohamad Yunus |
| author_sort | Muhammad Yazid, Mohamad Yunus |
| collection | UMP |
| description | The aim of the research study is to substitute the carbonyl ligand on chromium complexes in order to result in novel organometallic monocrystal compounds for crystal structure elucidation followed by physical and chemical characterization. Derivatives of Chromium Carbonyl are prepared by reaction with a number of tertiary phosphines and arsenic ligands which have the potential to result in novel organometallic compounds. Three different ligands were used to produce novel organornetallic monocrystal compounds which are Tris(3-methylphenyl)Arsine,
Tris(m-flurophenyl)Phosphine, and Tris[3 ,5-bis(trifluoromethyl)phenyl]Phosphine. Of these, the substitution reaction using Tris(m-fluorophenyl)Phosphine resulted in the formation of crystals with pale yellow colour. Monocrystal x-ray diffraction on a resulted in the novel crystal structure determined as trans-Tetracarbonylbis[tris(3fluorophenyl)phosphane]chromium(0) with molecular formula Cr(C 1 8H12F3P)2(CO)4.
Infrared Spectroscopy (IR) and Nuclear Magnetic Resonance (NMR) further compliment the X-ray diffraction results. In this novel structure, the Cr atom is octahedrally coordinated by four carbonyl ligands and two tertiary phosphanes, which are located trans to each other with a fluorine atom in the meta-position on each phenyl ring. The compound crystalises in the monoclinic system with space
group P2 1 /c and with an average Cr-P bond length of 2.3327 A and average Cr-CO bond length of 1.8869 A. This final year project meets international standards and led to an International Union of Crystallography (1UCr) journal publication, specifically in Acta Crystallographica Section E; (2011) with the title trans-Tetracarbonylbis [tris(3-fluorophenyl) phosphane]chromium(0). |
| first_indexed | 2024-03-06T11:50:05Z |
| format | Undergraduates Project Papers |
| id | UMPir7812 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T11:50:05Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | UMPir78122021-06-10T04:00:45Z http://umpir.ump.edu.my/id/eprint/7812/ Synthesis and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution, where L = tris (3-methylphenyl) arsine, tris (M-fluorophenyl) phosphine and tris [3, 5-Bis (trifluoromethyl) phenyl] phosphine Muhammad Yazid, Mohamad Yunus QD Chemistry The aim of the research study is to substitute the carbonyl ligand on chromium complexes in order to result in novel organometallic monocrystal compounds for crystal structure elucidation followed by physical and chemical characterization. Derivatives of Chromium Carbonyl are prepared by reaction with a number of tertiary phosphines and arsenic ligands which have the potential to result in novel organometallic compounds. Three different ligands were used to produce novel organornetallic monocrystal compounds which are Tris(3-methylphenyl)Arsine, Tris(m-flurophenyl)Phosphine, and Tris[3 ,5-bis(trifluoromethyl)phenyl]Phosphine. Of these, the substitution reaction using Tris(m-fluorophenyl)Phosphine resulted in the formation of crystals with pale yellow colour. Monocrystal x-ray diffraction on a resulted in the novel crystal structure determined as trans-Tetracarbonylbis[tris(3fluorophenyl)phosphane]chromium(0) with molecular formula Cr(C 1 8H12F3P)2(CO)4. Infrared Spectroscopy (IR) and Nuclear Magnetic Resonance (NMR) further compliment the X-ray diffraction results. In this novel structure, the Cr atom is octahedrally coordinated by four carbonyl ligands and two tertiary phosphanes, which are located trans to each other with a fluorine atom in the meta-position on each phenyl ring. The compound crystalises in the monoclinic system with space group P2 1 /c and with an average Cr-P bond length of 2.3327 A and average Cr-CO bond length of 1.8869 A. This final year project meets international standards and led to an International Union of Crystallography (1UCr) journal publication, specifically in Acta Crystallographica Section E; (2011) with the title trans-Tetracarbonylbis [tris(3-fluorophenyl) phosphane]chromium(0). 2012 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7812/1/MUHAMMAD_YAZID_BIN_MOHAMAD_YUNUS.PDF Muhammad Yazid, Mohamad Yunus (2012) Synthesis and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution, where L = tris (3-methylphenyl) arsine, tris (M-fluorophenyl) phosphine and tris [3, 5-Bis (trifluoromethyl) phenyl] phosphine. Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang. |
| spellingShingle | QD Chemistry Muhammad Yazid, Mohamad Yunus Synthesis and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution, where L = tris (3-methylphenyl) arsine, tris (M-fluorophenyl) phosphine and tris [3, 5-Bis (trifluoromethyl) phenyl] phosphine |
| title | Synthesis and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution, where L = tris (3-methylphenyl) arsine, tris (M-fluorophenyl) phosphine and tris [3, 5-Bis (trifluoromethyl) phenyl] phosphine |
| title_full | Synthesis and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution, where L = tris (3-methylphenyl) arsine, tris (M-fluorophenyl) phosphine and tris [3, 5-Bis (trifluoromethyl) phenyl] phosphine |
| title_fullStr | Synthesis and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution, where L = tris (3-methylphenyl) arsine, tris (M-fluorophenyl) phosphine and tris [3, 5-Bis (trifluoromethyl) phenyl] phosphine |
| title_full_unstemmed | Synthesis and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution, where L = tris (3-methylphenyl) arsine, tris (M-fluorophenyl) phosphine and tris [3, 5-Bis (trifluoromethyl) phenyl] phosphine |
| title_short | Synthesis and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution, where L = tris (3-methylphenyl) arsine, tris (M-fluorophenyl) phosphine and tris [3, 5-Bis (trifluoromethyl) phenyl] phosphine |
| title_sort | synthesis and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand l substitution where l tris 3 methylphenyl arsine tris m fluorophenyl phosphine and tris 3 5 bis trifluoromethyl phenyl phosphine |
| topic | QD Chemistry |
| url | http://umpir.ump.edu.my/id/eprint/7812/1/MUHAMMAD_YAZID_BIN_MOHAMAD_YUNUS.PDF |
| work_keys_str_mv | AT muhammadyazidmohamadyunus synthesisandcharacterizationofnovelorganometallicchromiumhexacarbonylderivativesvialigandlsubstitutionwhereltris3methylphenylarsinetrismfluorophenylphosphineandtris35bistrifluoromethylphenylphosphine |