User:Wayne Decatur/mof dev

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A catalytic molybdenum metal-organic framework
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<StructureSection load='' size='450' side='right' caption='A Metal–organic framework structure: the CSD entry JARMEU' scene='10/1092924/Csd_entry_jarmeu_basics/2' >
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<StructureSection load='1d66' size='500' frame='true' side='right' caption='A Metal–organic framework structure: the CSD entry WUTXUH' scene='10/1092924/Csd_entry_wutxuh_basics/2' >
 
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<!-- important to note you need to use 'side' in a StructureSection instead of 'align'. If you leave 'align' it doesn't work.-->
 
==Background==
==Background==
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Metal-organic frameworks have been shown to be applicable to catalysis, among many other applications, as [[Proteopedia:Hot_News|highlighted three chemists doing seminal work in this field being awarded the Nobel Prize in Chemistry in 2025]].
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Synthesized metal-organic frameworks have been shown to have a wide range of applications, as [[Proteopedia:Hot_News|highlighted three chemists doing seminal work in this field being awarded the Nobel Prize in Chemistry in 2025]].
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A catalytic molybdenum metal-organic framework was synthesized from porphyrin and sodium molybdate dihydrate by a hydrothermal method.<br/>
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Here the crystal structure of a cubic diamond metal-organic framework is featured; [https://www.ccdc.cam.ac.uk/structures/Search?Ccdcid=JARMEU&DatabaseToSearch=CSD the CSD entry JARMEU]<ref>B.F. Hoskins and R. Robson. 1989. Infinite polymeric frameworks consisting of three dimensionally linked rod-like segments. Journal of the American Chemical Society, v111, pg. 5962-5964, [https://pubs.acs.org/doi/abs/10.1021/ja00197a079 |DOI: 10.1021/ja00197a079]</ref>. <br/>
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The framework was characterized and shown to catalyze oxidation of cyclohexene.<br/>
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This is the structure that revealed that a crystalline, diamondoid, extended framework was formed that had large cavities, establishing this class of solid polymeric materials.
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Here the crystal structure of catalytic molybdenum metal-organic framework is featured.
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==A cubic diamond lattice metal-organic framework==
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Shown at the right is the building block of the network (<scene name='10/1092924/Csd_entry_jarmeu_basics/2'>restore initial scene</scene>).
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<span style="font-size:200%;">{{Template:ColorKey_Element_C}}, {{Template:ColorKey_Element_N}}, '''{{Font color|#C88033|Cu}}'''</span>
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==A catalytic molybdenum metal-organic framework==
 
<jmol>
<jmol>
<jmolCheckbox>
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<!--<scene name='70/701975/1d66_firstglance_secondary/2'>Each monomer</scene> of the protein dimer has 3 '''<font color='#f00080'> alpha helices</font>'''.
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The metal here is copper.<br/>
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A beautiful diamondoid structure appears that is a 4-connected network. <br/>
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The protein <scene name='70/701975/1d66_firstglance/2'>binds as a dimer to a symmetrical 17-base-pair sequence</scene>. Specifically, the consensus Gal4p-binding site is a 17-mer of sequence conforming to the motif below, which has the key feature of CGG triplets at the 5' ends, separated by 11 bps, or 5′-CGG-N11-CCG-3′.<br>
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When the repeats of this 4-connected network building block are shown connected to others, the crystalline lattice appears.<br/>
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&nbsp;<br>-->
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Viewing the <scene name='10/1092924/Csd_entry_jarmeu_1x1x3_set/4'>the CSD entry JARMEU as a 1x3x3 set of the metal organic framework</scene> illustrates this.<br/>
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<!--<span style="font-weight: bold;font-family: Courier New; font-size: 14pt">-->
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The large cavities are visible as the lattice layers onto itself as the view of the structure rotates. <br/>
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<!-- By setting font to courier, I can use non-proportional font. Whereas by default, rest of Proteopedia is proportional
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The cavities would contain anions and solvent that are not shown in this crystal structure as they'd be freely moving and randomly distributed.
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&nbsp;&nbsp;<span style="background:black;color:#FFC0C8">5'-CGGNNNNNNNNNNNCCG-3'</span><br>&nbsp;&nbsp;
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&nbsp;&nbsp;<font style='background:black;color:#ffffff;'>|||||||||||||||||</font><br>
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&nbsp;&nbsp;<span style="background:black;color:#FFFF80">3'-CGGNNNNNNNNNNNGGC-5'</span></span>-->
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<br/>
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<scene name='10/1092924/Csd_entry_wutxuh_set/3'>The CSD entry WUTXUH as a 1x1x3 set of the metal organic framework</scene>.
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The extensive crystalline nature with the large cavities becomes more apparent if we consider more of the repeated building blocks. <br/>
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<scene name='10/1092924/Csd_entry_jarmeu_lattice/4'>The CSD entry JARMEU as a 1x4x6 lattice of the metal organic framework</scene>.
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<scene name='10/1092924/Csd_entry_wutxuh_plane/3'>The CSD entry WUTXUH as a plane of the metal organic framework</scene>.
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<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>hide all and not cell=555;</scriptWhenChecked>
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<scriptWhenUnchecked>display all;</scriptWhenUnchecked>
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<checked>false</checked>
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<!-- <checked></checked> set it to false or delete it or comment it out as <checked>false</checked> or <checked> </checked>still show as checked-->
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<text>Toggle to limit to what is in just key cell vs. current lattice network context</text>
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</jmolCheckbox>
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</jmol>
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<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select all; spacefill on;</scriptWhenChecked>
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<scriptWhenUnchecked>select all; spacefill 0.35; select hydrogen; spacefill 0.25;</scriptWhenUnchecked>
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<checked>false</checked>
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<!-- <checked></checked> set it to false or delete it or comment it out as <checked>false</checked> or <checked> </checked>still show as checked-->
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<text>CPK Spacefll mode</text>
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</jmolCheckbox>
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</jmol>
<jmol>
<jmol>
<jmolButton>
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<script>load /wiki/scripts/10/1092924/Csd_entry_wutxuh_basics/2.spt</script>
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<script>load /wiki/scripts/10/1092924/Csd_entry_jarmeu_basics/2.spt</script>
<text>Restore Default Scene</text>
<text>Restore Default Scene</text>
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-->
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==Significance==
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Since the proposal of this class of materials, metal-organic framework have been proven to support many roles. Applications to gas storage, analytical chemistry and (bio)sensors, batteries and fuel cell technology, separation science, synthesis and catalysis, harvesting of water from dry (low humidity) air, water purification and environmental remediation, capture/destruction of harmful agents, energy conversion and storage, hydrogen generation, food
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safety, and drug delivery & diagnostics/therapy have been demonstrated<ref>https://www.nobelprize.org/uploads/2025/10/advanced-chemistryprize2025.pdf</ref>.
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</StructureSection>
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Highlighting the significance is the fact [[Proteopedia:Hot_News| three chemists doing seminal work in this field were awarded the Nobel Prize in Chemistry in 2025]]. The structure featured here played a key role in establishing this field.
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==Technical Details==
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</StructureSection>
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The views featuring the 1x1x3 set and the plane were built using [https://chemapps.stolaf.edu/jmol/jsmol/jcse/explore.htm the Jmol Crystal Symmetry Explorer] to examine [https://www.ccdc.cam.ac.uk/structures/Search?Ccdcid=WUTXUH&DatabaseToSearch=CSD CSD Entry: WUTXUH].
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==References==
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<references/>
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==Reference==
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==See also==
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<ref group="xtra">PMID: 32744270</ref><references group="xtra"/>
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* [[Catalytic Molybdenum Metal-Organic Framework]]
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* [[Metal-Ligand Polyhedra]]

Current revision

A Metal–organic framework structure: the CSD entry JARMEU

Drag the structure with the mouse to rotate

References

  1. ↑ B.F. Hoskins and R. Robson. 1989. Infinite polymeric frameworks consisting of three dimensionally linked rod-like segments. Journal of the American Chemical Society, v111, pg. 5962-5964, |DOI: 10.1021/ja00197a079
  2. ↑ https://www.nobelprize.org/uploads/2025/10/advanced-chemistryprize2025.pdf

See also

Proteopedia Page Contributors and Editors (what is this?)

Wayne Decatur

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