Category: 112881-51-3

The author of 《Terpyridine-functionalized chemically cross-linked polyacrylamide hydrogel for white emission and multistimuli-responsive behaviour》 were Fan, Kaiqi; Wang, Xiaobo; Ma, Yongpeng; Yang, Haoran; Han, Guanglu; Zhou, Liming; Fang, Shaoming. And the article was published in New Journal of Chemistry in 2020. COA of Formula: C20H14N4 The author mentioned the following in the article:

A highly efficient and multifunctional white-emitting hydrogel was fabricated using a facile copolymerization process by introducing a hydrophilic terpyridine-based chromophore into a polyacrylamide network. White emission was obtained by a simple procedure for adjusting the concentration of the chromophore. The CIE 1931 chromaticity coordinates of white emission with 360 nm excitation were (0.349, 0.331). Exploiting the specific sensitivities of the terpyridyl group, the white emission was also highly sensitive to pH and metal ions. We envision this photoluminescent hydrogel as a versatile material for chem. and environmental sensing. In the experiment, the researchers used 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3COA of Formula: C20H14N4)

4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3) belongs to pyridine derivatives. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals. COA of Formula: C20H14N4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The author of 《Multiple electrochemically accessible colour states in surface-confined metal-organic monolayers: stepwise embedding of individual metal centres》 were Laschuk, Nadia O.; Ahmad, Rana; Ebralidze, Iraklii I.; Poisson, Jade; Gaspari, Franco; Easton, E. Bradley; Zenkina, Olena V.. And the article was published in Materials Advances in 2021. Application In Synthesis of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine The author mentioned the following in the article:

Sequential covalent embedding of cobalt, osmium, and iron complexes of 4′-(pyridin-4-yl)-2,2′ :6′ ,2”- terpyridine to surface-enhanced supports pre-functionalized with a templating layer results in hetero-bimetallic (Os-Fe and Co-Fe) and hetero-trimetallic (Co-Os-Fe) monolayer materials. During sequential embedding, each subsequent metal complex deposits onto unoccupied sites of the templating layer leading to densely packed functional materials. Electrochem. and XPS results show that the packing d. of Fe(II) species on the surface of the resulting materials is higher than those of pre-deposited Co(II) and Os(II) isostructural complexes. Moreover, according to Raman spectroscopy results, Fe-containing mols. experience steric hindrance when anchored to sequentially deposited Os- or Co-Os materials. The oxidation states of the metal centers in these materials can be successively electrochem. changed resulting in distinct color-to-color transitions. Importantly, monolayer materials formed on the conductive surface-enhanced indium-tin-oxide support can operate as entire working electrodes, which, in combination with a polymer gel electrolyte and an indium tin oxide/glass counter electrode, result in two-electrode electrochromic devices (ECDs). Upon operation these devices demonstrate some deterioration of the change in optical d. (ΔOD), however, this deterioration is mostly due to gel electrolyte decomposition The nature of the material allows easy replacement of the electrolyte and the counter electrode. Re-assembly of Co-Fe ECD using a new gel electrolyte and an ITO-glass counter electrode results in almost complete ΔOD recuperation. In the experiment, the researchers used 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3Application In Synthesis of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine)

4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. Application In Synthesis of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine Pyridine has a conjugated system of six π electrons that are delocalized over the ring.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Li, Dong; Lv, Na; Yu, Jiankang; Qiao, Yu; Xue, Xiangxin; Li, Hongji; Che, Guangbo published an article in Journal of Molecular Structure. The title of the article was 《Synthesis, crystal structure and highly sensitive detection property of a fluorescent copper coordination polymer》.Reference of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine The author mentioned the following in the article:

A new luminescent metal-organic framework [Cu(Hbcb)(PYTPY)] (1) (H3bcb = 3,5-bis((5′-carboxylbenzyl)oxy)benzoic acid, PYTPY = 4′-(4-pyridyl)-2,2′:6′,2”-terpyridine) was successfully synthesized and structurally characterized by elemental anal., IR and single crystal x-ray diffraction. Anal. revealed that an infinite one-dimensional ladder chain was created by offset face-to-face π-π stacking interactions between H3bcb and PYTPY. And it exhibits a three-dimensional supramol. structure through the π-π stacking interactions between chains. The thermal stabilities and gas adsorption properties of complex 1 was studied. Complex 1 has good thermal stabilities and selective adsorption properties for CO2. The solid-state luminescent properties of MOFs were measured carefully by UV irradiation at room temperature Most noteworthy, complex 1 exhibits a high sensitivity for Fe3+ and nitrobenzene in ethanol solution with mixed metal ions and aromatic compounds, which makes it be a promising crystalline material as luminescent probe to Fe3+ and nitrobenzene. Importantly, complex 1 can keep its original framework and be reused in sensing experiments The sensing mechanism also was studied. In addition to this study using 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine, there are many other studies that have used 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3Reference of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine) was used in this study.

4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. Reference of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine Pyridine has a conjugated system of six π electrons that are delocalized over the ring.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Synthetic Route of C20H14N4On May 31, 2020, Chen, Hong-Shuo; Guo, Rui-Yun; Zhang, Qi-Ming; Liu, Yang-Sheng published an article in Monatshefte fuer Chemie. The article was 《Tunable solid-state photochromism based on proton and anion-controlled structural transformation of pyridinium-based organic small molecules》. The article mentions the following:

An organic mol. system with proton and anion-tunable photochromism properties based on a pyridinium derivative was developed. Through controlling the pH value and anion nature of the self-assembled systems, the novel three compounds displayed different photochromism behaviors. This work reveals that the introduction of addnl. groups into the mol. increases the diversity of the property of such complexes. In the experiment, the researchers used 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3Synthetic Route of C20H14N4)

4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3) belongs to pyridine derivatives. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals. Synthetic Route of C20H14N4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In 2021,Materials Chemistry Frontiers included an article by Luo, Dong; Zuo, Tao; Zheng, Ji; Long, Zi-Hao; Wang, Xue-Zhi; Huang, Yong-Liang; Zhou, Xiao-Ping; Li, Dan. Name: 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine. The article was titled 《Enabling photocatalytic activity of [Ru(2,2′:6′,2′′-terpyridine)2]2+ integrated into a metal-organic framework》. The information in the text is summarized as follows:

As a creation platform for multifunctional materials, crystalline metal-organic frameworks (MOFs) can integrate different chromophores through reticular chem. to adjust their spatial arrangement and intermol. interaction, in turn achieving the purpose of improving the nature of optoelectronic properties. Herein, a stepwise reticular synthesis approach is successfully used to construct a multicomponent MOF, in which the well-known bis-terpyridyl ruthenium chromophore is orderly arranged into the skeleton of the material. Remarkably, this method promotes the excited state lifetime of the bis-terpyridyl ruthenium core, by two orders of magnitude (from 0.39 to 22.09 ns), to the extent that it can produce singlet oxygen under visible light irradiation at room temperature Meanwhile, the obtained multicomponent MOF has been established to have considerable porosity for exposure of substrates to the catalytic sites, rendering it suitable for heterogeneous photocatalysis, including as a photooxidation detoxifier for sulfur mustard simulant. Moreover, DFT and TDDFT calculations reveal that the synergistic charge transfer among different components in the MOF may play a crucial role in improving the excited state properties of the bis-terpyridyl ruthenium motif. After reading the article, we found that the author used 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3Name: 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine)

4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. Name: 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine Pyridine has a conjugated system of six π electrons that are delocalized over the ring.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Santos, Jonnatan J.; Toma, Sergio H.; Monezi, Natalia M.; Ando, Romulo A.; Corio, Paola; Araki, Koiti published their research in Inorganic Chemistry on August 5 ,2019. The article was titled 《Selecting the Mechanism of Surface-Enhanced Raman Scattering Effect using Shell Isolated Nanoparticles and an Oxo-Triruthenium Acetate Cluster Complex》.Recommanded Product: 112881-51-3 The article contains the following contents:

After >40 years, surface-enhanced Raman spectroscopy (SERS) stills attract much attention from chemists, not only because of the synthesis of plasmonic nanostructures but also due to the several simultaneous mechanisms which still remain unclear. One of the possibilities for a better understanding of the SERS mechanisms is the use of suitable inorganic complexes. The use of inorganic complexes makes it possible to observe the 2 main SERS mechanisms (electromagnetic and chem.) and to observe the intensification of Raman scattering due to the resonance Raman effect. The observation of these mechanisms was possible using an unpublished and interesting complex with 2 oxo-triruthenium acetate clusters and an Fe bis(terpyridine) in its structure (7 metals) and which interacted with bare Au nanoparticles and shell-isolated Au nanoparticles (SHIN), with a 1 nm SiO2 shell. The use of SHIN allowed quenching the SERS chem. mechanism and led to a spectrum where Fe-terpyridine peaks are absent and only the modes related to [Ru3O] center were observed (due to enhancement by resonance Raman, SERRS); it can be said that the shell-isolated nanoparticles enhanced resonance Raman spectroscopy (SHINERRS) is observed This approach led to a perfect selection of SERS mechanisms never seen before with any other mol./complex. As can be seen in the UV-visible spectrum, this complex has a strong band around 700 nm, which suggests that SiO2 shell enhances only surface-enhanced resonance Raman scattering, a long-distance phenomenon, different from chem. enhancement (a short-distance phenomenon). Along with the Raman spectroscopy results, cyclic voltammetry, UV-visible spectroelectrochem., resonance Raman (using 568 and 676 nm lasers), and d. functional theory calculations of this new Ru cluster are presented. The experimental part of the paper was very detailed, including the reaction process of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3Recommanded Product: 112881-51-3)

4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. Recommanded Product: 112881-51-3The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

《Surface-Enhanced Counter Electrode Materials for the Fabrication of Ultradurable Electrochromic Devices》 was written by Ahmad, Rana; DiPalo, Vittoria-Ann; Bell, Mackenzie; Ebralidze, Iraklii I.; Zenkina, Olena V.; Easton, E. Bradley. Quality Control of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine And the article was included in ACS Applied Energy Materials on April 25 ,2022. The article conveys some information:

Electrochromic devices (ECDs) and especially electrochromic supercapacitors, where the real-time state of charge is indicated by the color, have a wide range of applications. However, to meet modern challenges, these devices should demonstrate exceptional charge-discharge durability. In this work, we demonstrate that electrochem. cycling stability of ECDs based on a monolayer of 4′-(4-pyridyl)-2,2′:6′,2′′-terpyridine-iron(II) complex that was covalently linked to the working electrode (WE) can be drastically enhanced by a proper design of the counter electrode (CE). Enhancing the surface area of the flat indium tin oxide (ITO) CE by a layer of screen-printed ITO nanoparticles results in an ECD that upon continuous spectro-electrochem. switching for 600 cycles demonstrates negligible deterioration of the change in optical d. The enhanced surface area of the CE significantly diminishes the electrode and gel electrolyte degradation and allows us to gain fundamental insight into the pathway of degradation of the electrochromic mols. at the WE. During prolonged cycling (20,000 and 50,000 cycles), the overall total resistance of ECDs remains fairly unchanged, while the capacitance decreases due to a loss of the pseudocapacitive component associated with electrochromic mols. XPS suggests that this loss is likely due to the cleavage of the linkage C-N+ bond followed by the dissolution of the entire metal complex mol. into the electrolyte. In the experiment, the researchers used 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3Quality Control of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine)

4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. Quality Control of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridineThe lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Liu, Zhida; Ning, Liangmin; Wang, Kaiyuan; Feng, Lixi; Gu, Wen; Liu, Xin published their research in Journal of Molecular Structure on December 5 ,2020. The article was titled 《A new imidazole-functionalized 3D-cobalt metal-organic framework as a high efficiency heterogeneous catalyst for Knoevenagel condensation reaction of furfural》.Reference of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine The article contains the following contents:

A new 3D Co(II) based metal-organic framework [Co(pytpy)(AIP)·H2O]n (I) (C2/c)(pytpy = 4′-(4-pyridyl)-4,2′:6′,4″”-terpyridine, AIP = 5-aminoisophthalic acid) by solvothermal method was synthesized. Its crystal structure was determined with single-crystal X-ray diffraction (SC-XRD) techniques. And then Imidazole groups were introduced into I by Schiff base post-synthetic reaction to make a Lewis base sites rich MOF-based catalyst. The post-synthetic MOF-based catalyst showed an excellent performance in Knoevenagel Condensation Reaction of furfural. Moreover, the catalytic performance for others homologues of furfural RCHO [R = [5-(hydroxymethyl)furan-2-yl], 4-fluorophenyl, Pr, etc.] and malononitrile was also tested. In the experiment, the researchers used 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3Reference of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine)

4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. Reference of 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine Pyridine has a conjugated system of six π electrons that are delocalized over the ring.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Khavasi, Hamid Reza; Esmaeili, Maryam published their research in Crystal Growth & Design on August 7 ,2019. The article was titled 《Case Study of the Correlation between Metallogelation Ability and Crystal Packing》.HPLC of Formula: 112881-51-3 The article contains the following contents:

In the present paper, in order to find the correlation between the mol. structure and the intermol. interaction patterns in the crystalline state and the corresponding gelating or nongelating behavior, two structurally related sets of copper complexes, including (CuCl2[L2pyTerpy]), 1, (CuCl2[L3pyTerpy]), 2, and (CuCl2[L4pyTerpy]), 3, (where LnpyTerpy is 4′-(n-pyridyl)-2,2′,6′,2”-terpyridine) as the first set and (CuCl2[L2pydipyz-py]), 4, (CuCl2[L3pydipyz-py]), 5, and (CuCl2[L4pydipyz-py]), 6, (where Lnpydipyz-py is 4-(n-pyridyl)-2,6-dipyrazin-2-yl-pyridine) as the second one, have been synthesized, and their crystal packing as well as gelating properties have been investigated. Results show that although these two sets are structurally similar the first set forms a metastable hydrogel, while the second one is unable to form a gel. To investigate the reasons, we employed Hirshfeld surface anal. and examined the differences in their packing arrangements, which suggest hydrogen bonding arranged into the three-dimensional network is a preferred mode of packing for the crystalline solid but is unfavorable for gel formation. In the part of experimental materials, we found many familiar compounds, such as 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3HPLC of Formula: 112881-51-3)

4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3) belongs to pyridine derivatives. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals. HPLC of Formula: 112881-51-3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Wang, Xiaobo; Ma, Yongpeng; Li, Zhenxing; Han, Guanglu; Guan, Xidong; Fan, Kaiqi published an article in Journal of Applied Spectroscopy. The title of the article was 《Colorimetric Detection of Fe(II) and Co(II) by Using Terpyridine-Based Derivative》.Related Products of 112881-51-3 The author mentioned the following in the article:

A multi-ion chromogenic sensor based on a terpyridine moiety was developed for the semiquant., visual, and sensitive speciation anal. of Fe2+ and Co2+ ions in water. Each metal ion exhibited a different color, and significant color evolution was observed by the naked eye, resulting in semiquant. visual detection. A smartphone was used for visual detection by identifying the RGB values of the probe solutions The application of smartphones shortened the detection time dramatically and reduced the detection cost. This method provides a new strategy for the semiquant. detection of heavy metal ions in water samples. In the experiment, the researchers used many compounds, for example, 4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3Related Products of 112881-51-3)

4′-(4-Pyridyl)-2,2′:6′,2”-terpyridine(cas: 112881-51-3) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. Related Products of 112881-51-3 Pyridine has a conjugated system of six π electrons that are delocalized over the ring.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem