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

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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Main Author: Muhammad Yazid, Mohamad Yunus
Format: Undergraduates Project Papers
Language:English
Published: 2012
Subjects:
QD Chemistry
Online Access:http://umpir.ump.edu.my/id/eprint/7812/
http://umpir.ump.edu.my/id/eprint/7812/
http://umpir.ump.edu.my/id/eprint/7812/1/MUHAMMAD_YAZID_BIN_MOHAMAD_YUNUS.PDF
id ump-7812
recordtype eprints
spelling ump-78122017-09-11T00:55:16Z 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. http://iportal.ump.edu.my/lib/item?id=chamo:76338&theme=UMP2
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic QD Chemistry
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
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).
format Undergraduates Project Papers
author Muhammad Yazid, Mohamad Yunus
author_facet Muhammad Yazid, Mohamad Yunus
author_sort Muhammad Yazid, Mohamad Yunus
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_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_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_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
publishDate 2012
url http://umpir.ump.edu.my/id/eprint/7812/
http://umpir.ump.edu.my/id/eprint/7812/
http://umpir.ump.edu.my/id/eprint/7812/1/MUHAMMAD_YAZID_BIN_MOHAMAD_YUNUS.PDF
first_indexed 2023-09-18T22:04:49Z
last_indexed 2023-09-18T22:04:49Z
_version_ 1777414638113128448

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