Synthesis, reactivity, and structures of (μ-acetamidato)hexakis(acetonitrilo)dimolybdenum(II) tris(tetrafluoroborate) and derivatives

F. Albert Cotton; Lee M. Daniels; Steven C. Haefner; Fritz E. Kühn

doi:10.1016/S0020-1693(98)00415-0

Synthesis, reactivity, and structures of (μ-acetamidato)hexakis(acetonitrilo)dimolybdenum(II) tris(tetrafluoroborate) and derivatives

F. Albert Cotton
, Lee M. Daniels
, Steven C. Haefner
, Fritz E. Kühn

Associate Professorship of Molecular Catalysis

Texas A and M University

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

33 Scopus citations

Abstract

Reaction of [Mo₂(CH₃CN)₈](BF₄)₄ (1) with the stoichiometric amount of acetamide leads to the violet, moisture sensitive complex [Mo₂(μ-CH₃CONH)(CH₃CN)₆](BF ₄)₃ (2). Reaction of the latter compound with two equivalents of dppm yields the purple [Mo₂(μ-CH₃CONH)(μ-dppm)₂(CH ₃CN)₂](BF₄)₃ (3). Compound 2 can also be prepared by reacting 1 with H₂O in acetonitrile. Reaction of 1 with toluidine leads to a compound of composition [Imidinium] [Mo₂(μ-(HNC(CH₃)N(C₇H₇))(CH ₃CN)₆](BF₄)₄ (4), and reaction with pyridine in the presence of water yields [Mo₂(μ-CH₃CONH)(NC₅H₅) ₅(OH)](BF₄)₂ (5). All these latter reactions are driven by the high electrophilicity of the [Mo₂]⁴⁺ core which makes the coordinated nitrile ligands highly susceptible to nucleophilic attack.

Original language	English
Pages (from-to)	159-166
Number of pages	8
Journal	Inorganica Chimica Acta
Volume	287
Issue number	2
DOIs	https://doi.org/10.1016/S0020-1693(98)00415-0
State	Published - 30 Apr 1999

Keywords

Crystal structures
Dinuclear complexes
Molybdenum complexes
Nitrile complexes

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title = "Synthesis, reactivity, and structures of (μ-acetamidato)hexakis(acetonitrilo)dimolybdenum(II) tris(tetrafluoroborate) and derivatives",

abstract = "Reaction of [Mo2(CH3CN)8](BF4)4 (1) with the stoichiometric amount of acetamide leads to the violet, moisture sensitive complex [Mo2(μ-CH3CONH)(CH3CN)6](BF 4)3 (2). Reaction of the latter compound with two equivalents of dppm yields the purple [Mo2(μ-CH3CONH)(μ-dppm)2(CH 3CN)2](BF4)3 (3). Compound 2 can also be prepared by reacting 1 with H2O in acetonitrile. Reaction of 1 with toluidine leads to a compound of composition [Imidinium] [Mo2(μ-(HNC(CH3)N(C7H7))(CH 3CN)6](BF4)4 (4), and reaction with pyridine in the presence of water yields [Mo2(μ-CH3CONH)(NC5H5) 5(OH)](BF4)2 (5). All these latter reactions are driven by the high electrophilicity of the [Mo2]4+ core which makes the coordinated nitrile ligands highly susceptible to nucleophilic attack.",

keywords = "Crystal structures, Dinuclear complexes, Molybdenum complexes, Nitrile complexes",

author = "Cotton, \{F. Albert\} and Daniels, \{Lee M.\} and Haefner, \{Steven C.\} and K{\"u}hn, \{Fritz E.\}",

year = "1999",

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doi = "10.1016/S0020-1693(98)00415-0",

language = "English",

volume = "287",

pages = "159--166",

journal = "Inorganica Chimica Acta",

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TY - JOUR

T1 - Synthesis, reactivity, and structures of (μ-acetamidato)hexakis(acetonitrilo)dimolybdenum(II) tris(tetrafluoroborate) and derivatives

AU - Cotton, F. Albert

AU - Daniels, Lee M.

AU - Haefner, Steven C.

AU - Kühn, Fritz E.

PY - 1999/4/30

Y1 - 1999/4/30

N2 - Reaction of [Mo2(CH3CN)8](BF4)4 (1) with the stoichiometric amount of acetamide leads to the violet, moisture sensitive complex [Mo2(μ-CH3CONH)(CH3CN)6](BF 4)3 (2). Reaction of the latter compound with two equivalents of dppm yields the purple [Mo2(μ-CH3CONH)(μ-dppm)2(CH 3CN)2](BF4)3 (3). Compound 2 can also be prepared by reacting 1 with H2O in acetonitrile. Reaction of 1 with toluidine leads to a compound of composition [Imidinium] [Mo2(μ-(HNC(CH3)N(C7H7))(CH 3CN)6](BF4)4 (4), and reaction with pyridine in the presence of water yields [Mo2(μ-CH3CONH)(NC5H5) 5(OH)](BF4)2 (5). All these latter reactions are driven by the high electrophilicity of the [Mo2]4+ core which makes the coordinated nitrile ligands highly susceptible to nucleophilic attack.

AB - Reaction of [Mo2(CH3CN)8](BF4)4 (1) with the stoichiometric amount of acetamide leads to the violet, moisture sensitive complex [Mo2(μ-CH3CONH)(CH3CN)6](BF 4)3 (2). Reaction of the latter compound with two equivalents of dppm yields the purple [Mo2(μ-CH3CONH)(μ-dppm)2(CH 3CN)2](BF4)3 (3). Compound 2 can also be prepared by reacting 1 with H2O in acetonitrile. Reaction of 1 with toluidine leads to a compound of composition [Imidinium] [Mo2(μ-(HNC(CH3)N(C7H7))(CH 3CN)6](BF4)4 (4), and reaction with pyridine in the presence of water yields [Mo2(μ-CH3CONH)(NC5H5) 5(OH)](BF4)2 (5). All these latter reactions are driven by the high electrophilicity of the [Mo2]4+ core which makes the coordinated nitrile ligands highly susceptible to nucleophilic attack.

KW - Crystal structures

KW - Dinuclear complexes

KW - Molybdenum complexes

KW - Nitrile complexes

UR - https://www.scopus.com/pages/publications/0000502301

U2 - 10.1016/S0020-1693(98)00415-0

DO - 10.1016/S0020-1693(98)00415-0

M3 - Article

AN - SCOPUS:0000502301

SN - 0020-1693

VL - 287

SP - 159

EP - 166

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - 2

ER -

Synthesis, reactivity, and structures of (μ-acetamidato)hexakis(acetonitrilo)dimolybdenum(II) tris(tetrafluoroborate) and derivatives

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