31P{1H}NMR and carbonyl force constants of unsymmetrical bidentate phosphine complexes of group (VI) metal carbonyls

Joe Gerald Jesu Raj; Devendra Deo Pathak; Pramesh N. Kapoor

doi:10.1016/j.molstruc.2015.01.041

³¹P{¹H}NMR and carbonyl force constants of unsymmetrical bidentate phosphine complexes of group (VI) metal carbonyls

Joe Gerald Jesu Raj, Devendra Deo Pathak, Pramesh N. Kapoor

Research output: Contribution to journal › Article › peer-review

Abstract

In our present work we report synthesis of an unsymmetrical diphos ligand, 1-diphenylphosphino-2-di-m-tolylphosphinoethane and its coordinate complexes with group (VI) metal carbonyls such as Cr(CO)₆ Mo(CO)₆ and W(CO)₆. The synthesized ligand and its complexes have been completely characterized by elemental analyses, FTIR, ¹HNMR, ³¹P{¹H}NMR and FAB mass spectrometry methods. Special emphasis has been given to calculations of carbonyl force constants. Based on the spectroscopic evidences it has been confirmed that these metal carbonyl complexes with the ditertiary phosphine ligand showed cis geometry in their molecular structure.

Original language	English
Pages (from-to)	41-45
Number of pages	5
Journal	Journal of Molecular Structure
Volume	1087
DOIs	https://doi.org/10.1016/j.molstruc.2015.01.041
State	Published - 5 May 2015
Externally published	Yes

Keywords

Carbonyls
Catalysis
Complexes
Force constant
Phosphines

Access to Document

10.1016/j.molstruc.2015.01.041

Cite this

@article{23b1ee3616bf4e1e9c4821ab18a7098b,

title = "31P{1H}NMR and carbonyl force constants of unsymmetrical bidentate phosphine complexes of group (VI) metal carbonyls",

abstract = "In our present work we report synthesis of an unsymmetrical diphos ligand, 1-diphenylphosphino-2-di-m-tolylphosphinoethane and its coordinate complexes with group (VI) metal carbonyls such as Cr(CO)6 Mo(CO)6 and W(CO)6. The synthesized ligand and its complexes have been completely characterized by elemental analyses, FTIR, 1HNMR, 31P{1H}NMR and FAB mass spectrometry methods. Special emphasis has been given to calculations of carbonyl force constants. Based on the spectroscopic evidences it has been confirmed that these metal carbonyl complexes with the ditertiary phosphine ligand showed cis geometry in their molecular structure.",

keywords = "Carbonyls, Catalysis, Complexes, Force constant, Phosphines",

author = "{Jesu Raj}, {Joe Gerald} and Pathak, {Devendra Deo} and Kapoor, {Pramesh N.}",

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language = "English",

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journal = "Journal of Molecular Structure",

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TY - JOUR

T1 - 31P{1H}NMR and carbonyl force constants of unsymmetrical bidentate phosphine complexes of group (VI) metal carbonyls

AU - Jesu Raj, Joe Gerald

AU - Pathak, Devendra Deo

AU - Kapoor, Pramesh N.

PY - 2015/5/5

Y1 - 2015/5/5

N2 - In our present work we report synthesis of an unsymmetrical diphos ligand, 1-diphenylphosphino-2-di-m-tolylphosphinoethane and its coordinate complexes with group (VI) metal carbonyls such as Cr(CO)6 Mo(CO)6 and W(CO)6. The synthesized ligand and its complexes have been completely characterized by elemental analyses, FTIR, 1HNMR, 31P{1H}NMR and FAB mass spectrometry methods. Special emphasis has been given to calculations of carbonyl force constants. Based on the spectroscopic evidences it has been confirmed that these metal carbonyl complexes with the ditertiary phosphine ligand showed cis geometry in their molecular structure.

AB - In our present work we report synthesis of an unsymmetrical diphos ligand, 1-diphenylphosphino-2-di-m-tolylphosphinoethane and its coordinate complexes with group (VI) metal carbonyls such as Cr(CO)6 Mo(CO)6 and W(CO)6. The synthesized ligand and its complexes have been completely characterized by elemental analyses, FTIR, 1HNMR, 31P{1H}NMR and FAB mass spectrometry methods. Special emphasis has been given to calculations of carbonyl force constants. Based on the spectroscopic evidences it has been confirmed that these metal carbonyl complexes with the ditertiary phosphine ligand showed cis geometry in their molecular structure.

KW - Carbonyls

KW - Catalysis

KW - Complexes

KW - Force constant

KW - Phosphines

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DO - 10.1016/j.molstruc.2015.01.041

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JO - Journal of Molecular Structure

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