Synthesis and structure of [Sb{(PriN)2CNHPri}{(Pr iN)2CNPri}]; a distorted trigonal-bipyramidal antimony(iii) complex with a helical hydrogen-bond network

Bailey, Philip J.; Gould, Robert O.; Harmer, Christopher N.; Pace, Stuart; Steiner, Alexander; Wright, Dominic S.

doi:10.1039/a701675a

Cited by 42 publications

(26 citation statements)

References 9 publications

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“…The calculated values of bond lengths Sb─S(1) of 1.79 Å and Sb─S(2) of 2.46 Å indicate anisobidentate behaviour of dithiocarbamate. The other characteristic bond lengths (Å) of Sb─O = 2.06, Sb─C(2) = 2.24, S(1)─C(1) = 1.68, S(2)─C(1) = 1.79, C(1)─N(1) = 1.48, O─N(2) = 1.33, N(2)─C(3) = 1.45 are comparable to already reported X‐ray crystallographic structures for similar types of derivatives in the literature …”

Section: Resultssupporting

confidence: 88%

Syntheses, characterization, antibacterial activity and molecular modelling of phenylantimony(III) heteroleptic derivatives containing substituted oximes and piperidine dithiocarbamate

Beniwal

Chhimpa

Gaur

et al. 2017

Applied Organom Chemis

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Six new heteroleptic phenylantimony(III) derivatives containing substituted oximes and dithiocarbamate moieties of the type (where R = ─C 6 H 5 , X = ─CH 3 (2a); R = ─C 6 H 4 CH 3 , X = ─CH 3 (2b); R = ─C 6 H 4 Cl, X = ─CH 3 (2c); R = ─C 6 H 4 Br, X = ─CH 3 (2d); R = ─C 6 H 4 OH, X = ─H (2e); R(X)C = (2f)) have been synthesized by the reactions of phenylantimony(III) dichloride with the sodium salt of substituted oximes and dithiocarbamate moiety in unimolar ratio with stirring in dichloromethane. All these newly synthesized derivatives have been characterized using physicochemical and elemental analyses. Structures have been proposed on the basis of infrared, 1 H NMR, 13 C NMR and LC-MS spectral studies and molecular modelling. In these derivatives the oxime behaves in an unidentate manner whereas dithiocarbamate behaves in a monofunctional anisobidentate manner. Pseudo-trigonal bipyramidal (ψ-TBP) geometry around the antimony metal centre is proposed for these phenylantimony(III) heteroleptic derivatives. The geometry of a representative complex has been optimized through molecular modelling. These newly synthesized derivatives were screened against Bacillus subtilis (Gram-positive) and Escherichia coli (Gram-negative) bacteria to evaluate their antibacterial potential. The structureactivity relationship for antibacterial activity among the four derivatives 2a, 2c, 2e and 2f is discussed.

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Section: Resultssupporting

confidence: 88%

Syntheses, characterization, antibacterial activity and molecular modelling of phenylantimony(III) heteroleptic derivatives containing substituted oximes and piperidine dithiocarbamate

Beniwal

Chhimpa

Gaur

et al. 2017

Applied Organom Chemis

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“…There is only one previous report of a (dianionic)guanidinate being used to support a group 15 atom involving antimony 45 (Chart 3d), and one example of a phosphorus centre 39 being supported by a guanidinate ligand. In this context, we report the first synthesis and comprehensive characterization of a series of chlorophosphines supported by homo-and heteroleptic (dianionic)guanidinates.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Reactivity, and Computational Analysis of Halophosphines Supported by Dianionic Guanidinate Ligands

et al. 2012

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The reported chemistry and reactivity of guanidinate supported group 15 elements in the +3 oxidation state, particularly phosphorus, is limited when compared to their ubiquity in supporting metallic elements across the periodic table. We have synthesized a series of chlorophosphines utilizing homo-and heteroleptic (dianionic)guanidinates and have completed a comprehensive study of their reactivity. Most notable is the reluctancy of these four-membered rings to form the corresponding Nheterocyclic phosphenium cations, the tendency to chemically and thermally eliminate carbodiimide and the scarcely observed ring expansion by insertion of a chloro(imino)phosphine into a P-N bond of the P-N-C-N framework.Computational analysis has provided corroborating evidence for the unwillingness of the halide abstraction reaction by demonstrating the exceptional electron acceptor properties of the target phosphenium cations and the underscoring strength of the P-X bond.

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“…In the solid state, the complex forms a helical polymer by N–H ··· N hydrogen bonding of the remaining N–H moiety. Most likely, the volatility of Sb[( i PrN) 2 CNH i Pr][( i PrN) 2 CN i Pr] is low due to its polymeric nature …”

Section: Development Of New Ge Sb and Te Precursors Including Simentioning

confidence: 99%

Molecular Precursors for the Phase‐Change Material Germanium‐Antimony‐Telluride, Ge₂Sb₂Te₅ (GST)

Harmgarth

Zörner

Liebing

et al. 2017

Zeitschrift anorg allge chemie

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This review provides an overview of the precursor chemistry that has been developed around the phase‐change material germanium‐antimony‐telluride, Ge2Sb2Te5 (GST). Thin films of GST can be deposited by employing either chemical vapor deposition (CVD) or atomic layer deposition (ALD) techniques. In both cases, the success of the layer deposition crucially depends on the proper choice of suitable molecular precursors. Previously reported processes mainly relied on simple alkoxides, alkyls, amides and halides of germanium, antimony, and tellurium. More sophisticated precursor design provided a number of promising new aziridinides and guanidinates.

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Synthesis and structure of [Sb{(PriN)2CNHPri}{(Pr iN)2CNPri}]; a distorted trigonal-bipyramidal antimony(iii) complex with a helical hydrogen-bond network

Cited by 42 publications

References 9 publications

Syntheses, characterization, antibacterial activity and molecular modelling of phenylantimony(III) heteroleptic derivatives containing substituted oximes and piperidine dithiocarbamate

Syntheses, characterization, antibacterial activity and molecular modelling of phenylantimony(III) heteroleptic derivatives containing substituted oximes and piperidine dithiocarbamate

Synthesis, Reactivity, and Computational Analysis of Halophosphines Supported by Dianionic Guanidinate Ligands

Molecular Precursors for the Phase‐Change Material Germanium‐Antimony‐Telluride, Ge₂Sb₂Te₅ (GST)

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Synthesis and structure of [Sb{(PriN)2CNHPri}{(Pr iN)2CNPri}]; a distorted trigonal-bipyramidal antimony(iii) complex with a helical hydrogen-bond network

Cited by 42 publications

References 9 publications

Syntheses, characterization, antibacterial activity and molecular modelling of phenylantimony(III) heteroleptic derivatives containing substituted oximes and piperidine dithiocarbamate

Syntheses, characterization, antibacterial activity and molecular modelling of phenylantimony(III) heteroleptic derivatives containing substituted oximes and piperidine dithiocarbamate

Synthesis, Reactivity, and Computational Analysis of Halophosphines Supported by Dianionic Guanidinate Ligands

Molecular Precursors for the Phase‐Change Material Germanium‐Antimony‐Telluride, Ge2Sb2Te5 (GST)

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Molecular Precursors for the Phase‐Change Material Germanium‐Antimony‐Telluride, Ge₂Sb₂Te₅ (GST)