Synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution /

Synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution /

The objective of the research study is to synthesize novel compounds through substitution process. The carbonyl ligand on chromium complexes is replaced by different tertiary phosphine ligands in order to produce a novel organometallic monocrystal compound. The crystal is characterized in terms of i...

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Main Author: Hamdya Farhana, Mohidin Yahya
Format: Undergraduates Project Papers
Language:English
Published: 2012
Subjects:
QD Chemistry
Online Access:http://umpir.ump.edu.my/id/eprint/7786/
http://umpir.ump.edu.my/id/eprint/7786/
http://umpir.ump.edu.my/id/eprint/7786/1/HAMDYA_FARHANA_BT_MOHIDIN_YAHYA.PDF
id ump-7786
recordtype eprints
spelling ump-77862016-05-03T02:47:48Z http://umpir.ump.edu.my/id/eprint/7786/ Synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution / Hamdya Farhana, Mohidin Yahya QD Chemistry The objective of the research study is to synthesize novel compounds through substitution process. The carbonyl ligand on chromium complexes is replaced by different tertiary phosphine ligands in order to produce a novel organometallic monocrystal compound. The crystal is characterized in terms of its structure, followed by the physical and chemical properties. Derivatives of Chromium Carbonyl are prepared by reaction with a number of tertiary phosphine ligands which have the potential to result in novel organometallic compounds. There are five attempt substitutions being done using Dicyclophenyiphosphene, Tris-(4fluorophenyl)phosphene, Tris-(3chlorophenyl)phosphine, Diphenylpentafluorophenyiphosphene and 1,2bis(dicyclohexylphosphino)ethane. From these, the substitution reaction using Tris-(4-fluorophenyl)phosphene resulted in the formation of a fine bright yellow crystal. From the monocrystal x-ray diffraction analysis, the resulting novel crystal structure is determined as Trans-bis[tris(4flourophenyl)phosphane]tetracarbonylchromium(0) with molecular formula C40H24CrF60 4P2. Infrared Spectroscopy ([R) and Nuclear Magnetic Resonance (NMIR) further compliment the X-ray diffraction results. For the novel structure, the Cr atom is octahedrally coordinated by four carbonyl ligands and two monodentate phosphorus ligands, which are bonded in a trans position to each other. The compound crystalizes in the monoclinic system, space group C2/c with an average Cr-P bond length of 2.3331 A and average Cr-CO bond length of 1.8808 A. 2012 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7786/1/HAMDYA_FARHANA_BT_MOHIDIN_YAHYA.PDF Hamdya Farhana, Mohidin Yahya (2012) Synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution /. Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:76194&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
Hamdya Farhana, Mohidin Yahya
Synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution /
description The objective of the research study is to synthesize novel compounds through substitution process. The carbonyl ligand on chromium complexes is replaced by different tertiary phosphine ligands in order to produce a novel organometallic monocrystal compound. The crystal is characterized in terms of its structure, followed by the physical and chemical properties. Derivatives of Chromium Carbonyl are prepared by reaction with a number of tertiary phosphine ligands which have the potential to result in novel organometallic compounds. There are five attempt substitutions being done using Dicyclophenyiphosphene, Tris-(4fluorophenyl)phosphene, Tris-(3chlorophenyl)phosphine, Diphenylpentafluorophenyiphosphene and 1,2bis(dicyclohexylphosphino)ethane. From these, the substitution reaction using Tris-(4-fluorophenyl)phosphene resulted in the formation of a fine bright yellow crystal. From the monocrystal x-ray diffraction analysis, the resulting novel crystal structure is determined as Trans-bis[tris(4flourophenyl)phosphane]tetracarbonylchromium(0) with molecular formula C40H24CrF60 4P2. Infrared Spectroscopy ([R) and Nuclear Magnetic Resonance (NMIR) further compliment the X-ray diffraction results. For the novel structure, the Cr atom is octahedrally coordinated by four carbonyl ligands and two monodentate phosphorus ligands, which are bonded in a trans position to each other. The compound crystalizes in the monoclinic system, space group C2/c with an average Cr-P bond length of 2.3331 A and average Cr-CO bond length of 1.8808 A.
format Undergraduates Project Papers
author Hamdya Farhana, Mohidin Yahya
author_facet Hamdya Farhana, Mohidin Yahya
author_sort Hamdya Farhana, Mohidin Yahya
title Synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution /
title_short Synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution /
title_full Synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution /
title_fullStr Synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution /
title_full_unstemmed Synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (L) substitution /
title_sort synthesis, structure determination and characterization of novel organometallic chromium hexacarbonyl derivatives via ligand (l) substitution /
publishDate 2012
url http://umpir.ump.edu.my/id/eprint/7786/
http://umpir.ump.edu.my/id/eprint/7786/
http://umpir.ump.edu.my/id/eprint/7786/1/HAMDYA_FARHANA_BT_MOHIDIN_YAHYA.PDF
first_indexed 2023-09-18T22:04:46Z
last_indexed 2023-09-18T22:04:46Z
_version_ 1777414634631856128

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