Erratum to “Reactions of β-diketiminates with selenium and tellurium halides” [J. Organomet. Chem. 691 (2006) 5069–5073]

Gushwa, Audra F.; Karlin, Josh G.; Fleischer, Ray A.; Richards, Emma

doi:10.1016/j.jorganchem.2006.11.001

Cited by 4 publications

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“…Treatment of SeX 4 (X = Cl, Br) with Dippnacnac 86a (nacnac = [{N(Ar)C(Me)} 2 CH] − , Ar = Dipp = 2,6-diisopropylphenyl), MesnacnacLi 86b (Ar = Mes = C 6 H 2 Me 3 -2,4,6), or DmpnacnacLi 86c (Ar = Dmp = C 6 H 3 Me 2 -2,6) afforded new Se II six-membered heterocycles, [DippnacnacHCl 2 Se] + Cl − ( 87 ), [MesnacnacHCl 2 SeCl] ( 88 ), [MesnacnacH 2 Se] + Br − ( 89 ), and [DmpnacnacH 2 Cl 3 Se] + Cl − ( 90 ) (Scheme ) . Each of the complexes was proposed to have formed from the initial reaction of SeX 4 with the C−C double bond that resulted from the enamine form of the ligand, giving rise to a Se−C single bond.…”

Section: Intramolecularly Coordinated Organoselenium Compounds: Hyper...mentioning

confidence: 99%

Organoselenium Chemistry: Role of Intramolecular Interactions

et al. 2010

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Section: Intramolecularly Coordinated Organoselenium Compounds: Hyper...mentioning

confidence: 99%

Organoselenium Chemistry: Role of Intramolecular Interactions

et al. 2010

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“…The central Te atom lies in the basal plane (g/Cl-Te-Cl = 360.0u) with negligible deviation (0.0008 A ˚) from the mean plane of the TeCl 4 unit and a narrow Te-Cl bond length range of 2.5090(4) to 2.5449(4) A ˚. 31 The Te … Cl and Cl … Cl secondary bonding interactions that are reported 26 to give rise to oligomeric as well as polymeric species, [(ArTeCl 4 ) 2 ] n (n = 2, 3 or '), are absent in the crystal lattice of 5. Instead, weak intermolecular (naphthyl)C7-H7 … Cl2 interactions selfassemble anions into chains (Fig.…”

Section: Molecular and Crystal Structuresmentioning

confidence: 96%

Controlled hydrolysis of aryltellurium trichlorides using 2-pyrrolidinones: isolation and structural characterization of monomeric aryltellurium(IV) monohydroxides

et al. 2011

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The 2-pyrrolidinone (Pyrr)-assisted hydrolysis of aryltellurium trichlorides, provided their first-step hydrolysis products as 1 : 1 molecular adducts, ArTeCl 2 OH.Pyrr (Ar = 1-C 10 H 7 , Npl, 1; 2,4,6-Me 3 C 6 H 2 , Mes, 2). The hydroxo ligand occupies an equatorial position in the y-trigonal bipyramidal geometry around Te(IV) and is involved in a strong H-bonding interaction with the amido O of the base. As NplTeBr 3 did not react with 2-pyrrolidinone under similar conditions, the bromo analogue of 1, NplTeBr 2 OH.Pyrr (3), was prepared by a metathetical reaction with NaBr. Both 1 and 2 undergo electrophilic substitution with acetone and pinacolone to afford Ar(RCOCH 2 )TeCl 2 (R = Me, t-Bu), but do not react with iodoacetic acid, suggesting that the hydroxo ligand acts as a nucleophile rather than a base. The Te-OH bond in 1 is also cleaved by CH 3 COCl to give the parent trihalide NplTeCl 3 , while reaction with BrCH 2 COBr results in NplTeBr 3 (4) as the ultimate tellurium containing product. The reaction of NplTeCl 3 with N-Methyl protected 2-pyrrolidinone (PyrrMe), under similar conditions, gave an ionic complex [(PyrrMe) 2 H] [NplTeCl 4 ] ( 5), but did not react with N-acyl protected 2-pyrrolidinone, PyrrCOCH 2 Br. However, the latter added oxidatively to elemental tellurium to give (PyrrCOCH 2 ) 2 TeBr 2 (6). In the crystal lattice of 5, discreet five-coordinate square pyramidal CTeX 4 units are present, while in the case of 4 the same units are realized via intermolecular Te … Br interactions in a one-dimensional supramolecular architecture. N-(2-pyrrolidinone)amidomethyl ligands in 6 adopt a rare, if not the first, 1,6-(C,O) mode of chelation in preference to 1,4-(C,O) mode often observed in similar Te(IV) compounds.

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“…[2] This occurrence, along with chlorination of the ligand, suggested that Cl 2 , formed in situ from SeCl 4 , was halogenating the ligand backbone.…”

Section: Synthesis Ofmentioning

confidence: 99%

“…124.7 (2) 125.36 (18 all the molecules in the neighboring row are oriented in the opposite direction.…”

Section: X-ray Crystal Structure Ofmentioning

confidence: 99%

“…(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008) Scheme 1) [2] prepared by the direct 1:1 reaction of the lithium salt of Dippnacnac (Dipp = 2,6-diisopropylphenyl) and the chalcogen tetrahalide. Like many of the electron-rich p-block β-diketiminato complexes, these avoided the usual N,NЈ-chelation [3] and instead favored reaction at the former backbone methyl carbon atom.…”

Section: Introduction β-Diketiminato Ligands [{N(ar)c(me)} 2 Ch]mentioning

confidence: 99%

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Selenium Heterocycles: Reactions of SeX₄ (X = Cl, Br) with the Enamine Form of β‐Diketiminato Ligands

Gushwa

Richards

2008

Eur J Inorg Chem

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Treatment of SeX4 (X = Cl, Br) with either MesnacnacLi(nacnac = [{N(Ar)C(Me)}2CH]–, Ar = Mes = C6H2Me3‐2,4,6) or DmpnacnacLi (Ar = Dmp = C6H3Me2‐2,6) affords four new SeII six‐membered heterocycles, [MesnacnacHCl2SeCl] (2), [MesnacnacH2Se]+Br– (3), [DmpnacnacH2Cl3Se]+Cl– (4), and [MesnacnacH2(O)Br2Se] (5). All have been characterized in the solid state by X‐ray crystallography. Each of the four complexes is proposed to have formed from the initial reaction of SeX4 with the C–C double bond that results from the enamine form of the ligand, giving rise to an Se–C single bond. Subsequent nucleophilic attack by either the more distant nitrogen atom or the remaining C–C double bond of the enamine form results in the Se heterocycle. In complexes 2, 4, and 5 varying degrees of halogenation of the newly formed heterocycles was observed.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

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Erratum to “Reactions of β-diketiminates with selenium and tellurium halides” [J. Organomet. Chem. 691 (2006) 5069–5073]

Cited by 4 publications

References 0 publications

Organoselenium Chemistry: Role of Intramolecular Interactions

Organoselenium Chemistry: Role of Intramolecular Interactions

Controlled hydrolysis of aryltellurium trichlorides using 2-pyrrolidinones: isolation and structural characterization of monomeric aryltellurium(IV) monohydroxides

Selenium Heterocycles: Reactions of SeX₄ (X = Cl, Br) with the Enamine Form of β‐Diketiminato Ligands

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Erratum to “Reactions of β-diketiminates with selenium and tellurium halides” [J. Organomet. Chem. 691 (2006) 5069–5073]

Cited by 4 publications

References 0 publications

Organoselenium Chemistry: Role of Intramolecular Interactions

Organoselenium Chemistry: Role of Intramolecular Interactions

Controlled hydrolysis of aryltellurium trichlorides using 2-pyrrolidinones: isolation and structural characterization of monomeric aryltellurium(IV) monohydroxides

Selenium Heterocycles: Reactions of SeX4 (X = Cl, Br) with the Enamine Form of β‐Diketiminato Ligands

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Selenium Heterocycles: Reactions of SeX₄ (X = Cl, Br) with the Enamine Form of β‐Diketiminato Ligands