Investigations of the coordination chemistry of molybdenum with facultative tetradentate ligands possessing N2S2 donor sets. 5. Crystal and molecular structures of the hydrazido(2-) and diazenido derivatives [MoO(N2Ph2)L] and [Mo(N2C6H4OCH3)2L]

P. L. Dahlstrom, J. R. Dilworth, P. Shulman, Jon A Zubieta

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Abstract

The crystal and molecular structures of two derivatives of Mo(VI) with substituted hydrazine ligands, oxo[diphenyl-hydrazido(2-)][N,N′-dimethyl-N,N′-bis(mercaptoethyl) ethylenediamine]molybdenum(VI), [MoO(N2Ph2)L], and [bis-((p-methoxyphenyl)diazenido)][N,N′-dimethyl-N,N′- bis(mercaptoethyl)ethylenediamine]molybdenum(VI), [Mo(N2C6H4OCH3)2L], are reported. [MoO(N2Ph2)L] crystallizes as red needles in space group P21/c with unit cell dimensions a = 13.248 (2) Å, b = 11.229 (2) Å, and c = 15.780 (2) Å and with β = 109.46 (1)° and Z = 4. The structure has been refined to R1 = 0.027 and R2 = 0.048 on the basis of 2784 independent reflections. The molecule is pseudooctahedral with the hydrazido(2-) group cis to the oxo ligand. [Mo(N2C6H4OCH3)2L] crystallizes in space group Cc with unit cell dimensions a = 22.557 (2) Å, b = 8.483 (3) Å, and c = 18.030 (2) Å and with β = 133.25 (1)° and Z = 4. The structure refined to values of R1 and R2 of 0.043 and 0.049, respectively, on the basis of 1505 independent reflections. The diazenido ligands are mutually cis and enjoy significant multiple-bond interaction with the molybdenum, as indicated by the short average Mo-N distance of 1.81 (2) Å. In both structures, the ligand L exhibits the sterically strained configuration associated with this tetradentate ligand. The electrochemistry of a series of complexes of the type [Mo(N2C6H4X)2L] is discussed and related to the geometry of the diazenido ligands.

Original languageEnglish (US)
Pages (from-to)933-939
Number of pages7
JournalInorganic Chemistry
Volume21
Issue number3
StatePublished - 1982
Externally publishedYes

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Molybdenum
Molecular structure
molybdenum
ethylenediamine
molecular structure
Crystal structure
chemistry
Ligands
Derivatives
ligands
crystal structure
hydrazine
hydrazines
Electrochemistry
electrochemistry
cells
needles
Needles
Molecules
Geometry

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

@article{ec681b026573432a9bbadf27a69ad055,
title = "Investigations of the coordination chemistry of molybdenum with facultative tetradentate ligands possessing N2S2 donor sets. 5. Crystal and molecular structures of the hydrazido(2-) and diazenido derivatives [MoO(N2Ph2)L] and [Mo(N2C6H4OCH3)2L]",
abstract = "The crystal and molecular structures of two derivatives of Mo(VI) with substituted hydrazine ligands, oxo[diphenyl-hydrazido(2-)][N,N′-dimethyl-N,N′-bis(mercaptoethyl) ethylenediamine]molybdenum(VI), [MoO(N2Ph2)L], and [bis-((p-methoxyphenyl)diazenido)][N,N′-dimethyl-N,N′- bis(mercaptoethyl)ethylenediamine]molybdenum(VI), [Mo(N2C6H4OCH3)2L], are reported. [MoO(N2Ph2)L] crystallizes as red needles in space group P21/c with unit cell dimensions a = 13.248 (2) {\AA}, b = 11.229 (2) {\AA}, and c = 15.780 (2) {\AA} and with β = 109.46 (1)° and Z = 4. The structure has been refined to R1 = 0.027 and R2 = 0.048 on the basis of 2784 independent reflections. The molecule is pseudooctahedral with the hydrazido(2-) group cis to the oxo ligand. [Mo(N2C6H4OCH3)2L] crystallizes in space group Cc with unit cell dimensions a = 22.557 (2) {\AA}, b = 8.483 (3) {\AA}, and c = 18.030 (2) {\AA} and with β = 133.25 (1)° and Z = 4. The structure refined to values of R1 and R2 of 0.043 and 0.049, respectively, on the basis of 1505 independent reflections. The diazenido ligands are mutually cis and enjoy significant multiple-bond interaction with the molybdenum, as indicated by the short average Mo-N distance of 1.81 (2) {\AA}. In both structures, the ligand L exhibits the sterically strained configuration associated with this tetradentate ligand. The electrochemistry of a series of complexes of the type [Mo(N2C6H4X)2L] is discussed and related to the geometry of the diazenido ligands.",
author = "Dahlstrom, {P. L.} and Dilworth, {J. R.} and P. Shulman and Zubieta, {Jon A}",
year = "1982",
language = "English (US)",
volume = "21",
pages = "933--939",
journal = "Inorganic Chemistry",
issn = "0020-1669",
publisher = "American Chemical Society",
number = "3",

}

TY - JOUR

T1 - Investigations of the coordination chemistry of molybdenum with facultative tetradentate ligands possessing N2S2 donor sets. 5. Crystal and molecular structures of the hydrazido(2-) and diazenido derivatives [MoO(N2Ph2)L] and [Mo(N2C6H4OCH3)2L]

AU - Dahlstrom, P. L.

AU - Dilworth, J. R.

AU - Shulman, P.

AU - Zubieta, Jon A

PY - 1982

Y1 - 1982

N2 - The crystal and molecular structures of two derivatives of Mo(VI) with substituted hydrazine ligands, oxo[diphenyl-hydrazido(2-)][N,N′-dimethyl-N,N′-bis(mercaptoethyl) ethylenediamine]molybdenum(VI), [MoO(N2Ph2)L], and [bis-((p-methoxyphenyl)diazenido)][N,N′-dimethyl-N,N′- bis(mercaptoethyl)ethylenediamine]molybdenum(VI), [Mo(N2C6H4OCH3)2L], are reported. [MoO(N2Ph2)L] crystallizes as red needles in space group P21/c with unit cell dimensions a = 13.248 (2) Å, b = 11.229 (2) Å, and c = 15.780 (2) Å and with β = 109.46 (1)° and Z = 4. The structure has been refined to R1 = 0.027 and R2 = 0.048 on the basis of 2784 independent reflections. The molecule is pseudooctahedral with the hydrazido(2-) group cis to the oxo ligand. [Mo(N2C6H4OCH3)2L] crystallizes in space group Cc with unit cell dimensions a = 22.557 (2) Å, b = 8.483 (3) Å, and c = 18.030 (2) Å and with β = 133.25 (1)° and Z = 4. The structure refined to values of R1 and R2 of 0.043 and 0.049, respectively, on the basis of 1505 independent reflections. The diazenido ligands are mutually cis and enjoy significant multiple-bond interaction with the molybdenum, as indicated by the short average Mo-N distance of 1.81 (2) Å. In both structures, the ligand L exhibits the sterically strained configuration associated with this tetradentate ligand. The electrochemistry of a series of complexes of the type [Mo(N2C6H4X)2L] is discussed and related to the geometry of the diazenido ligands.

AB - The crystal and molecular structures of two derivatives of Mo(VI) with substituted hydrazine ligands, oxo[diphenyl-hydrazido(2-)][N,N′-dimethyl-N,N′-bis(mercaptoethyl) ethylenediamine]molybdenum(VI), [MoO(N2Ph2)L], and [bis-((p-methoxyphenyl)diazenido)][N,N′-dimethyl-N,N′- bis(mercaptoethyl)ethylenediamine]molybdenum(VI), [Mo(N2C6H4OCH3)2L], are reported. [MoO(N2Ph2)L] crystallizes as red needles in space group P21/c with unit cell dimensions a = 13.248 (2) Å, b = 11.229 (2) Å, and c = 15.780 (2) Å and with β = 109.46 (1)° and Z = 4. The structure has been refined to R1 = 0.027 and R2 = 0.048 on the basis of 2784 independent reflections. The molecule is pseudooctahedral with the hydrazido(2-) group cis to the oxo ligand. [Mo(N2C6H4OCH3)2L] crystallizes in space group Cc with unit cell dimensions a = 22.557 (2) Å, b = 8.483 (3) Å, and c = 18.030 (2) Å and with β = 133.25 (1)° and Z = 4. The structure refined to values of R1 and R2 of 0.043 and 0.049, respectively, on the basis of 1505 independent reflections. The diazenido ligands are mutually cis and enjoy significant multiple-bond interaction with the molybdenum, as indicated by the short average Mo-N distance of 1.81 (2) Å. In both structures, the ligand L exhibits the sterically strained configuration associated with this tetradentate ligand. The electrochemistry of a series of complexes of the type [Mo(N2C6H4X)2L] is discussed and related to the geometry of the diazenido ligands.

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