What question did this study set out to answer?

Synthesize and structurally characterize a crystalline, highly porous titanium(IV) dicarboxylate framework endowed with high thermal stability and photochemical responsiveness.

July 21, 2009Journal of the American Chemical Society

A New Photoactive Crystalline Highly Porous Titanium(IV) Dicarboxylate

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Authors

MDM. Dan‐HardiÉcole Nationale Supérieure de Chimie de Montpellier CSChristian SerreUniversité Claude Bernard Lyon 1 TFT. FrotIBM Research - Almaden

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Implication

Material characterization reveals a highly porous and thermally stable photoactive titanium framework in MIL-125, highlighting promising utility in smart photonic devices and catalysis.

Key Points

Synthesize and structurally characterize a crystalline, highly porous titanium(IV) dicarboxylate framework endowed with high thermal stability and photochemical responsiveness.
Synthesized MIL-125 from octameric titanium octahedra wheels linked by terephthalate dianions to form three-dimensional hybrid cages.
Evaluated thermal stability and porous architecture using X-ray thermodiffractometry, thermal analysis up to elevated temperatures in air, and nitrogen sorption analysis.
Characterized photochromic behavior and electron transfer mechanisms upon alcohol and nitrogen adsorption using electron spin resonance and UV-visible absorption spectroscopy.
MIL-125 formed accessible cage pore diameters of 6.13 Å and 12.55 Å, achieved a BET surface area of 1550 m²/g, and demonstrated thermal stability up to 360 °C in air.
Light exposure in the presence of adsorbed alcohol induced photochromic Ti(IV) reduction to stable Ti(III) centers alongside alcohol oxidation, which completely re-oxidized upon exposure to oxygen.

Cite This Study

Dan‐Hardi et al. (2009) studied this question.

synapsesocial.com/papers/69d6d02ffca0359822aa8a9f https://doi.org/10.1021/ja903726m

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Implication

Material characterization reveals a highly porous and thermally stable photoactive titanium framework in MIL-125, highlighting promising utility in smart photonic devices and catalysis.

A New Photoactive Crystalline Highly Porous Titanium(IV) Dicarboxylate

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Implication

Key Points

Cite This Study

A New Photoactive Crystalline Highly Porous Titanium(IV) Dicarboxylate

Discussion

Member takes

Implication

Key Points

Cite This Study

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