Homochiral iron(ii)-based metal–organic nanotubes: metamagnetism and selective nitric oxide adsorption in a confined channel

2019 ◽  
Vol 55 (19) ◽  
pp. 2825-2828 ◽  
Author(s):  
Jia-Ge Jia ◽  
Jian-Shen Feng ◽  
Xin-Da Huang ◽  
Song-Song Bao ◽  
Li-Min Zheng
Keyword(s):  
Nitric Oxide ◽  
Metal Phosphonates ◽  
Metal Organic ◽  
Nitric Oxide Adsorption ◽  
Organic Nanotubes ◽  
Confined Channel

Homochiral nanotubular metal phosphonates (R)-or (S)-[Fe(pemp)(H2O2)2] [pemp2− = (R)- or (S)-(1-phenylethylamino) methylphonate] are reported which are the first examples of metal–organic nanotubes combining chirality, metamagnetism and highly selective nitric oxide absorption in the same molecular composite.

High-Capacity Hydrogen and Nitric Oxide Adsorption and Storage in a Metal−Organic Framework

2007 ◽  
Vol 129 (5) ◽  
pp. 1203-1209 ◽  
Author(s):  
Bo Xiao ◽  
Paul S. Wheatley ◽  
Xuebo Zhao ◽  
Ashleigh J. Fletcher ◽  
Sarah Fox ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Metal Organic Framework ◽  
High Capacity ◽  
Metal Organic ◽  
Nitric Oxide Adsorption ◽  
And Storage ◽  
Organic Framework

scholarly journals Tuning Nitric Oxide Adsorption in Cobalt–Triazolate Frameworks

2020 ◽  
Author(s):  
Julia Oktawiec ◽  
Henry Z. H. Jiang ◽  
Ari Turkiewicz ◽  
Jeffrey R. Long
Keyword(s):  
Nitric Oxide ◽  
Infrared Spectroscopy ◽  
Gas Adsorption ◽  
Metal Organic Framework ◽  
No Adsorption ◽  
Coordination Environment ◽  
Metal Centers ◽  
Metal Organic ◽  
Nitric Oxide Adsorption ◽  
Unsaturated Metal Sites

<p>Nitric oxide (NO) is an important signaling molecule in biological systems, and as such the ability of certain porous materials to reversibly adsorb NO is of interest for medical applications. Metal–organic frameworks have been explored for their ability to reversibly bind NO at coordinatively-unsaturated metal sites, however the influence of metal coordination environment on NO adsorption has yet to be studied in detail. Here, we examine NO adsorption in the frameworks Co<sub>2</sub>Cl<sub>2</sub>(bbta) and Co<sub>2</sub>(OH)<sub>2</sub>(bbta) (H<sub>2</sub>bbta = 1<i>H</i>,5<i>H</i>-benzo(1,2-<i>d</i>:4,5-<i>d</i>′)bistriazole) via gas adsorption, infrared spectroscopy, powder X-ray diffaction, and magnetometry measurements. While NO adsorbs reversibly in Co<sub>2</sub>Cl<sub>2</sub>(bbta) without electron-transfer, adsorption of low pressures of NO in Co<sub>2</sub>(OH)<sub>2</sub>(bbta) is accompanied by charge transfer from the cobalt(II) centers to form a cobalt(III)–NO<sup>−</sup> adduct, as supported by diffraction and infrared spectroscopy data. At higher pressures of NO, characterization data support additional uptake of the gas and disproportionation of the bound NO to form a cobalt(III)–nitro (NO<sub>2</sub><sup>−</sup>) species and N<sub>2</sub>O gas, a transformation that appears to be facilitated in part by stabilizing hydrogen bonding interactions between the bound NO<sub>2</sub><sup>−</sup> and framework hydroxo groups. This reactivity represents a rare example of reductive NO-binding in a metal–organic framework and demonstrates that NO binding can be tuned by changing the coordination environment of the framework metal centers.</p>

scholarly journals Tuning Nitric Oxide Adsorption in Cobalt–Triazolate Frameworks

2020 ◽  
Author(s):  
Julia Oktawiec ◽  
Henry Z. H. Jiang ◽  
Ari Turkiewicz ◽  
Jeffrey R. Long
Keyword(s):  
Nitric Oxide ◽  
Infrared Spectroscopy ◽  
Gas Adsorption ◽  
Metal Organic Framework ◽  
No Adsorption ◽  
Coordination Environment ◽  
Metal Centers ◽  
Metal Organic ◽  
Nitric Oxide Adsorption ◽  
Unsaturated Metal Sites

<p>Nitric oxide (NO) is an important signaling molecule in biological systems, and as such the ability of certain porous materials to reversibly adsorb NO is of interest for medical applications. Metal–organic frameworks have been explored for their ability to reversibly bind NO at coordinatively-unsaturated metal sites, however the influence of metal coordination environment on NO adsorption has yet to be studied in detail. Here, we examine NO adsorption in the frameworks Co<sub>2</sub>Cl<sub>2</sub>(bbta) and Co<sub>2</sub>(OH)<sub>2</sub>(bbta) (H<sub>2</sub>bbta = 1<i>H</i>,5<i>H</i>-benzo(1,2-<i>d</i>:4,5-<i>d</i>′)bistriazole) via gas adsorption, infrared spectroscopy, powder X-ray diffaction, and magnetometry measurements. While NO adsorbs reversibly in Co<sub>2</sub>Cl<sub>2</sub>(bbta) without electron-transfer, adsorption of low pressures of NO in Co<sub>2</sub>(OH)<sub>2</sub>(bbta) is accompanied by charge transfer from the cobalt(II) centers to form a cobalt(III)–NO<sup>−</sup> adduct, as supported by diffraction and infrared spectroscopy data. At higher pressures of NO, characterization data support additional uptake of the gas and disproportionation of the bound NO to form a cobalt(III)–nitro (NO<sub>2</sub><sup>−</sup>) species and N<sub>2</sub>O gas, a transformation that appears to be facilitated in part by stabilizing hydrogen bonding interactions between the bound NO<sub>2</sub><sup>−</sup> and framework hydroxo groups. This reactivity represents a rare example of reductive NO-binding in a metal–organic framework and demonstrates that NO binding can be tuned by changing the coordination environment of the framework metal centers.</p>

Nitric Oxide Adsorption and Delivery in Flexible MIL-88(Fe) Metal–Organic Frameworks

2013 ◽  
Vol 25 (9) ◽  
pp. 1592-1599 ◽  
Author(s):  
A. C. McKinlay ◽  
J. F. Eubank ◽  
S. Wuttke ◽  
B. Xiao ◽  
P. S. Wheatley ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Nitric Oxide Adsorption

The quest for hydrogen bond-based metal organic nanotubes (MONT)

2014 ◽  
Vol 67 (23-24) ◽  
pp. 3863-3872 ◽  
Author(s):  
Andrea Ienco ◽  
Maria Caporali ◽  
Ferdinando Costantino ◽  
Annalisa Guerri ◽  
Gabriele Manca ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Metal Organic ◽  
Organic Nanotubes

Folate-targeted single-wall metal-organic nanotubes used as multifunctional drug carriers

2017 ◽  
Vol 392 ◽  
pp. 189-195 ◽  
Author(s):  
Linyan Yang ◽  
Min Liu ◽  
Kebin Huang ◽  
Xia Ai ◽  
Cun Li ◽  
...  
Keyword(s):  
Drug Carriers ◽  
Metal Organic ◽  
Organic Nanotubes

Enzyme-immobilized metal–organic framework nanosheets as tandem catalysts for the generation of nitric oxide

2018 ◽  
Vol 54 (79) ◽  
pp. 11176-11179 ◽  
Author(s):  
Pinghua Ling ◽  
Caihua Qian ◽  
Feng Gao ◽  
Jianping Lei
Keyword(s):  
Nitric Oxide ◽  
Metal Organic Framework ◽  
Serum Samples ◽  
Metal Organic ◽  
Organic Framework

An enzyme-immobilized metal–organic framework nanosystem was developed as a tandem catalyst for in situ generation of nitric oxide in serum samples.

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