Day: February 3, 2023

Charge Control in Two Isostructural Anionic/Cationic Co^II Coordination Frameworks for Enhanced Acetylene Capture was written by Chen, Di-Ming;Tian, Jia-Yue;Liu, Chun-Sen;Chen, Min;Du, Miao. And the article was included in Chemistry – A European Journal in 2016.Computed Properties of C9H7N3O2 This article mentions the following:

Two isostructural Co^II-based metal-organic frameworks (MOFs) with the opposite framework charges were constructed, which can be simply controlled by changing the tetrazolyl or triazolyl terminal in two bifunctional ligands. Notably, the cationic MOF {[Co₆(OH)₂(INA)₆(CPT)₃](NO₃)(DMA)₈}_n 2 can adsorb much more C₂H₂ than the anionic MOF {[Co₆(OH)₂(INA)₆(TZB)₃](H₂NMe₂)₂(DMA)₇}_n (1) with an increase of 88% for C₂H₂ uptake at 298 K in spite of more active nitrogen sites in 1 (HINA = isonicotinic acid, H₂TZB = 4-(1H-tetrazol-5-ye)benzoic acid, HCPT = 4-(4-carboxyphenyl)-1,2,4-triazole). Theor. calculations indicate that both nitrate and triazolyl play vital roles in C₂H₂ binding and the C₂H₂ adsorption isotherm confirms that the enhanced C₂H₂ uptake for 2 (225 and 163 cm³g^-1 at 273 and 298 K) is exceptionally high for MOF materials without open metal sites or uncoordinated polar atom groups on the frameworks. In the experiment, the researchers used many compounds, for example, 4-(4H-1,2,4-Triazol-4-yl)benzoic acid (cas: 157069-48-2Computed Properties of C9H7N3O2).

4-(4H-1,2,4-Triazol-4-yl)benzoic acid (cas: 157069-48-2) belongs to triazole derivatives. However, triazoles are also useful in bioorthogonal chemistry, because the large number of nitrogen atoms causes triazoles to react similar to azides. Triazole growth retardants such as uniconazole and paclobutrazol have been known to inhibit the biosynthesis of gibberellins by blocking kaurene oxidase, an P450 enzymeComputed Properties of C9H7N3O2

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Solvent-induced secondary building unit (SBU) variations in a series of Cu(II) metal-organic frameworks derived from a bifunctional ligand was written by Chen, Di-Ming;Ma, Jian-Gong;Cheng, Peng. And the article was included in Dalton Transactions in 2015.Application of 157069-48-2 This article mentions the following:

The role of auxiliary solvents in the formation of metal-organic frameworks (MOFs) has been studied for a series of copper-based framework systems. Herein the authors show the formation of three different 3D ordered frameworks with the formulas {[Cu₄(cpt)₄Cl₄]·2DMF·dioxane·3H₂O}_n (1), {[Cu₈(cpt)₄(Hcpt)₂Cl₇(μ₃-OH)₂(H₂O)₄]Cl₃·4CH₃CN}_n (2), and {[Cu₈(cpt)₄Cl₄(μ₃-OH)₂(μ₄-O)₂]Cl₂·4H₂O·2CH₃CN·3MeOH}_n (3) [Hcpt = 4-(4-carboxyphenyl)-1,2,4-triazole], resp., from the same reaction mixture through varying auxiliary solvents of the medium. These MOFs were fully characterized by single-crystal x-ray diffraction, showing interesting secondary building unit (SBU) variations. The varied SBUs not only bring different framework architectures to these MOFs, but also affect their framework stability. Gas sorption studies of MOF 3 reveal high CO₂-N₂ selectivity at 298 K and 0.16 bar (a typical partial pressure of CO₂ in an industrial flue gas). A high isosteric heat of adsorption (Q_st) at zero loading (53 kJ mol^-1) was also observed in MOF 3. In the experiment, the researchers used many compounds, for example, 4-(4H-1,2,4-Triazol-4-yl)benzoic acid (cas: 157069-48-2Application of 157069-48-2).

4-(4H-1,2,4-Triazol-4-yl)benzoic acid (cas: 157069-48-2) belongs to triazole derivatives. Among the nitrogen-containing heterocyclic compounds, triazoles emerge with superior pharmacological applications.Triazole heterocyclic structures are found to form many weak nonbond interactions with the receptors and enzymes in biological systems.Application of 157069-48-2

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics