Vibrational spectra and structure of antimony (III) trialkoxides

Arbuzöv, B. A.; Shagidullin, R. R.; Vinogradova, V. S.; Shakirov, I. Kh.; Mareev, Yu. M.

doi:10.1007/bf00950571

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…The calculated vibrational frequencies show that there is a marked shift in the Sb–O stretching frequency upon self-assembly (from 559 cm –1 in 1 to 511 cm –1 in 1 2 , Table ). This shift in Sb–O frequency has been used previously as a spectroscopic signature of self-assembly with antimony aryl- and alkoxides. , This shift in the IR frequency is the result of the population of the Sb–O σ* orbitals by the lone pair of electrons from the O atoms on a neighboring molecule. This weakens the Sb–O primary bonds which results in a shift to lower vibrational frequencies.…”

Section: Resultsmentioning

confidence: 88%

“…This shift in Sb−O frequency has been used previously as a spectroscopic signature of self-assembly with antimony aryl-and alkoxides. 46,47 This shift in the IR frequency is the result of the population of the Sb−O σ* orbitals by the lone pair of electrons from the O atoms on a neighboring molecule. This weakens the Sb−O primary bonds which results in a shift to lower vibrational frequencies.…”

Section: ■ Introductionmentioning

confidence: 99%

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Precise Steric Control over 2D versus 3D Self-Assembly of Antimony(III) Alkoxide Cages through Strong Secondary Bonding Interactions

Moaven

Yasin

et al. 2017

Inorg. Chem.

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Antimony(III) alkoxide cages were designed as building blocks for predictable supramolecular self-assembly. Supramolecular synthons featuring two Sb···O secondary bonding interactions (SBIs), each SBI stronger than 30 kJ/mol, were used to drive the formation of the supramolecular architectures. Judicious choice of pendant groups provided predictable control over the formation of self-assembled 3D columnar helices, which crystallized with hollow morphologies, or a self-assembled 2D bilayer. The Sb-O stretching frequency provides a spectroscopic signature of Sb···O SBI formation.

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Section: Resultsmentioning

confidence: 88%

Section: ■ Introductionmentioning

confidence: 99%

Precise Steric Control over 2D versus 3D Self-Assembly of Antimony(III) Alkoxide Cages through Strong Secondary Bonding Interactions

Moaven

Yasin

et al. 2017

Inorg. Chem.

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Ethoxy and silsesquioxane derivatives of antimony as dopant precursors: unravelling the structure and thermal stability of surface species on SiO₂

Alphazan

Florian

Thieuleux

2017

Phys. Chem. Chem. Phys.

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We report here the controlled preparation of SiO supported Sb-(mono)layers and their thorough characterization by in situ IR, solid-state NMR and elemental analyses. This study allows for the molecular understanding of the surface Sb species derived from the grafting of ethoxy and polyhedral oligomeric silsesquioxane antimony derivatives as mono- or bi-podal Sb(iii) surface species depending on the number of surface SiOH groups. This result is different from what was observed with the phosphorus analogue (POSS-P) that yielded P(v) species. A monolayer coverage of Sb species onto silica was also obtained using both POSS-Sb and the [Sb(OEt)] derivative with surface densities ranging from ∼0.3 Sb nm to 1.8 Sb nm, respectively. It is noteworthy that under optimized conditions, a layer of antimony species or suboxides on silica was produced using POSS-Sb without significant Sb loss, highlighting the protective properties of the POSS cage. These results open new perspectives for the controlled and non-destructive Sb-doping (Molecular Layer Doping) of semiconductors dedicated to nano-device applications.

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Self-assembled reversed bilayers directed by pnictogen bonding to form vesicles in solution

Moaven

Vega

et al. 2018

Chem. Commun.

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Artificial vesicles can aid in the study and understanding of biological cell membranes. This study employs pnictogen bonding to actively direct the self-assembly of a true reversed bilayer. Antimony(iii) alkoxide cages that self-assemble through multiple strong SbO interactions propagate in two dimensions to form a reverse bilayer structure in the solid state. Long alkyl tails allow these reverse bilayers to be processed into vesicles in solution that are a reverse of biological cell membranes.

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Vibrational spectra and structure of antimony (III) trialkoxides

Cited by 4 publications

References 3 publications

Precise Steric Control over 2D versus 3D Self-Assembly of Antimony(III) Alkoxide Cages through Strong Secondary Bonding Interactions

Precise Steric Control over 2D versus 3D Self-Assembly of Antimony(III) Alkoxide Cages through Strong Secondary Bonding Interactions

Ethoxy and silsesquioxane derivatives of antimony as dopant precursors: unravelling the structure and thermal stability of surface species on SiO₂

Self-assembled reversed bilayers directed by pnictogen bonding to form vesicles in solution

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Vibrational spectra and structure of antimony (III) trialkoxides

Cited by 4 publications

References 3 publications

Precise Steric Control over 2D versus 3D Self-Assembly of Antimony(III) Alkoxide Cages through Strong Secondary Bonding Interactions

Precise Steric Control over 2D versus 3D Self-Assembly of Antimony(III) Alkoxide Cages through Strong Secondary Bonding Interactions

Ethoxy and silsesquioxane derivatives of antimony as dopant precursors: unravelling the structure and thermal stability of surface species on SiO2

Self-assembled reversed bilayers directed by pnictogen bonding to form vesicles in solution

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Ethoxy and silsesquioxane derivatives of antimony as dopant precursors: unravelling the structure and thermal stability of surface species on SiO₂