A novel zinc(II) metal–organic framework with a diamond-like structure: synthesis, study of thermal robustness and gas adsorption properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F16%3A00455796" target="_blank" >RIV/61388955:_____/16:00455796 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/C5DT02437D" target="_blank" >http://dx.doi.org/10.1039/C5DT02437D</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/C5DT02437D" target="_blank" >10.1039/C5DT02437D</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A novel zinc(II) metal–organic framework with a diamond-like structure: synthesis, study of thermal robustness and gas adsorption properties

Popis výsledku v původním jazyce

A solvothermal reaction of Zn(II) salt with methanetetrabenzoic acid (H4MTB) and 1,4,8,11-tetraazacyclotetradecane (cyclam, CYC) created a new microporous metal–organic framework {[Zn2(μ4-MTB)(κ4-CYC)2]2DMF7H2O}n (DMF = N,N-dimethylformamide). Single crystal X-ray diffraction showed that the complex exhibits a four-fold interpenetrated diamond-like structure topology with 1D jar-like channels with sizes about 14.1 14.1 and 2.4 2.4 Å2. The stability of the framework and activation conditions of the compound have been studied by high-energy powder X-ray diffraction during in situ heating, thermogravimetric analysis coupled with mass spectrometry and infrared spectroscopy performed at different temperatures. The gas adsorption behaviour of {[Zn2(μ4-MTB)(κ4-CYC)2]2DMF7H2O}n was studied by adsorption of Ar, N2, CO2 and H2. Nitrogen and argon adsorption showed that the activated sample exhibits Brunauer–Emmet–Teller (BET) specific surface areas of 644 m2 g1 (N2) and 562 m2 g1 (Ar). The complex adsorbs carbon dioxide with a maximum storage capacity of 10.5 wt% at 273 K and 101 kPa. The observed hydrogen uptake was 1.27 wt% at 77 K and 800 Torr, which is the highest value reported for the compounds containing a MTB4 linker. The adsorption heats of carbon dioxide and hydrogen, calculated according to the Clausius–Clapeyron equation, were in the range 22.8–22.4 kJ mol1 for CO2 and 8.9–3.2 kJ mol1 for H2, indicating weak interactions of the gases with the framework.n

Název v anglickém jazyce

A novel zinc(II) metal–organic framework with a diamond-like structure: synthesis, study of thermal robustness and gas adsorption properties

Popis výsledku anglicky

A solvothermal reaction of Zn(II) salt with methanetetrabenzoic acid (H4MTB) and 1,4,8,11-tetraazacyclotetradecane (cyclam, CYC) created a new microporous metal–organic framework {[Zn2(μ4-MTB)(κ4-CYC)2]2DMF7H2O}n (DMF = N,N-dimethylformamide). Single crystal X-ray diffraction showed that the complex exhibits a four-fold interpenetrated diamond-like structure topology with 1D jar-like channels with sizes about 14.1 14.1 and 2.4 2.4 Å2. The stability of the framework and activation conditions of the compound have been studied by high-energy powder X-ray diffraction during in situ heating, thermogravimetric analysis coupled with mass spectrometry and infrared spectroscopy performed at different temperatures. The gas adsorption behaviour of {[Zn2(μ4-MTB)(κ4-CYC)2]2DMF7H2O}n was studied by adsorption of Ar, N2, CO2 and H2. Nitrogen and argon adsorption showed that the activated sample exhibits Brunauer–Emmet–Teller (BET) specific surface areas of 644 m2 g1 (N2) and 562 m2 g1 (Ar). The complex adsorbs carbon dioxide with a maximum storage capacity of 10.5 wt% at 273 K and 101 kPa. The observed hydrogen uptake was 1.27 wt% at 77 K and 800 Torr, which is the highest value reported for the compounds containing a MTB4 linker. The adsorption heats of carbon dioxide and hydrogen, calculated according to the Clausius–Clapeyron equation, were in the range 22.8–22.4 kJ mol1 for CO2 and 8.9–3.2 kJ mol1 for H2, indicating weak interactions of the gases with the framework.n

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA14-07101S" target="_blank" >GA14-07101S: Kombinované experimentální a teoretické studium katalytických vlastností krystalických porézních organokovových materiálů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Dalton Transactions

ISSN

1477-9226

e-ISSN

—

Svazek periodika

45

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

1233-1242

Kód UT WoS článku

000367614700045

EID výsledku v databázi Scopus

2-s2.0-84953897671