Category: 1539-42-0

《Phosphate and Water Sensing with a Zinc-Dipicolylamine-Based Charge-Transfer Dye》 was written by Gayton, Jacqueline; Autry, Shane A.; Kolodziejczyk, Wojciech; Hill, Glake A.; Hammer, Nathan I.; Delcamp, Jared H.. Recommanded Product: Bis(pyridin-2-ylmethyl)amine And the article was included in ChemistrySelect in 2020. The article conveys some information:

A D-π-A (donor-π bridge-acceptor) dye with a conjugated dipicolylamine group as the donor was synthesized and characterized. When zinc is bound to the dipicolylamine ligand, charge transfer strength from the donor is decreased resulting in a large blue-shift in the absorption spectrum with a quenching of dye emission. Upon addition of phosphate, changes in both the absorption and emission spectrum are observed with intermediate states between the starting zinc complex and free dye observed The zinc-dye complex was found to react with two equivalent of phosphate or trace water to give the free dye. The water response is unexpected given the widespread use of the dipicolylamine group as an anion sensor in water. When the dipicolylamine group is part of conjugated D-π-A dye designs with zinc complexes, the dye is observed to act as a humidity sensor at low water amounts In the part of experimental materials, we found many familiar compounds, such as Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Recommanded Product: Bis(pyridin-2-ylmethyl)amine)

Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. The compound is a tridentate ligand in coordination chemistry and commonly used to produce Zn-based chemosensors/probes, such as Zinpry.Recommanded Product: Bis(pyridin-2-ylmethyl)amine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Application In Synthesis of Bis(pyridin-2-ylmethyl)amineIn 2020 ,《A cyclometalated trinuclear Ir(III)/Pt(II) complex as a luminescent probe for histidine-rich proteins》 appeared in Dalton Transactions. The author of the article were Sarkar, Ankita; Kumar, Ravi; Das, Bishnu; Ray, Partho Sarothi; Gupta, Parna. The article conveys some information:

Organometallic complexes have important application in the field of protein staining, with potential for use in proteomic anal. The rational synthesis of a trinuclear luminescent organometallic complex with two platinum(II) centers appended to the cyclometalated ligand of the iridium(III) center is reported here. Two di-2-picolylamine groups bonded to the cyclometalated Ph pyridine moiety provide three coordinating sites to each platinum center. The replacement of chloride in the fourth coordination site of two square planar platinum metal centers with the imidazole nitrogen or sulfur atom of histidine/cysteine is evident from the change in luminescence intensity upon binding these amino acids. The increase in luminescence emission intensity upon binding of histidine to the organometallic complex allowed it to be used as a protein staining agent. Reversibility of staining upon washing with imidazole enhances the possibility of its application in mass spectrometric anal. The experimental process involved the reaction of Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Application In Synthesis of Bis(pyridin-2-ylmethyl)amine)

Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. The compound is a tridentate ligand in coordination chemistry and commonly used to produce Zn-based chemosensors/probes, such as Zinpry.Application In Synthesis of Bis(pyridin-2-ylmethyl)amine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In 2022,Wang, Ming; Zhang, Feng; Luo, Yang; Li, Shuo; Wang, Ming-Qi published an article in Chemistry & Biodiversity. The title of the article was 《DPA-Substituted Carbazole Derivative as a Fluorescent Ligand for G4 DNA》.Electric Literature of C12H13N3 The author mentioned the following in the article:

Herein a conjugated dipicolylamine/carbazole (Car-DPA) mol. was designed and synthesized to enhance the performance for the application as a G4 fluorescent ligand. This ligand has been found to display distinct and specific fluorescence enhancements in the presence of various G4 DNA structures, but limited with ssDNA or dsDNAs. The detail binding characteristics of the ligand with c-MYC G4 DNA were investigated by fluorescence, UV/VIS absorption, CD spectroscopy, and mol. docking. The present study demonstrated that Car-DPA bound to c-MYC G4s with a two-step complex formation, in which the binding mode appeared to be end-stacking. Confocal fluorescence images indicated that ligand Car-DPA could locate in nucleus, which is quite prominent from the cellular internalization studies. After reading the article, we found that the author used Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Electric Literature of C12H13N3)

Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. As a tridentate ligand this compound provides three nitrogen donors that affords good selectivity for Zn2+ over biologically relevant metals such as Na+, K+, Mg2+ and Ca2+, and leaves coordination sites free for anion binding. Electric Literature of C12H13N3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In 2022,Smits, N. W. G.; Rademaker, D.; Konovalov, A. I.; Siegler, M. A.; Hetterscheid, D. G. H. published an article in Dalton Transactions. The title of the article was 《Influence of the spatial distribution of copper sites on the selectivity of the oxygen reduction reaction》.COA of Formula: C12H13N3 The author mentioned the following in the article:

Moving towards a hydrogen economy raises the demand for affordable and efficient catalysts for the oxygen reduction reaction. Cu-bmpa (bmpa = bis(2-picolyl)amine) is shown to have moderate activity, but poor selectivity for the 4-electron reduction of oxygen to water. To enhance the selectivity towards water formation, the cooperative effect of three Cu-bmpa binding sites in a single trinuclear complex is investigated. The catalytic currents in the presence of the trinuclear sites are lower, possibly due to the more rigid structure and therefore higher reorganization energies and/or slower diffusion rates of the catalytic species. Although the oxygen reduction activity of the trinuclear complexes is lower than that of mononuclear Cu-bmpa, the selectivity of the copper mediated oxygen reduction was significantly enhanced towards the 4-electron process due to a cooperative effect between three copper centers that have been positioned in close proximity. These results indicate that the cooperativity between metal ions within biomimetic sites can greatly enhance the ORR selectivity. In the experiment, the researchers used Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0COA of Formula: C12H13N3)

Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. As a tridentate ligand this compound provides three nitrogen donors that affords good selectivity for Zn2+ over biologically relevant metals such as Na+, K+, Mg2+ and Ca2+, and leaves coordination sites free for anion binding. COA of Formula: C12H13N3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

《Biotin-tagged cis-dichlorido-oxidovanadium(IV) complex for DNA crosslinking and photo-induced apoptotic cytotoxicity》 was written by Kumar, Arun; Sahoo, Somarupa; Dixit, Akanksha; Karande, Anjali A.; Chakravarty, Akhil R.. COA of Formula: C12H13N3This research focused onvanadium oxo chloro biotin appended dipicolylamine complex preparation anticancer; crystal structure vanadium oxo chloro biotin appended dipicolylamine complex. The article conveys some information:

Cis-dichlorido-oxidovanadium(IV) complexes [VO(dpa/L1)Cl2] (1, 2) of dipicolylamine (dpa, 1 as control species) and 5-[(3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoic acid (biotin)-appended dpa (L1, 2 as active species) were prepared and their anticancer activity studied. Single crystal X-ray diffraction anal. of complex 1 revealed a cis arrangement of two chloride ligands in a distorted octahedral geometry with VIVON3Cl2. The dpa ligand displayed a facial mode of coordination. The complexes were 1:1 electrolytic in an aqueous medium and showed a significant enhancement of conductivity on irradiation with visible light. Complex 2 having the biotin moiety showed cytotoxicity in visible light of 400-700 nm giving IC50 value of 15.0(±0.2) μM in HeLa cells and 5.0(±1.2) μM in HepG2 cells. The complex did not show any apparent generation of reactive oxygen species (ROS) in dichlorofluorescein diacetate (DCFDA) assay. The complex displayed apoptotic photo-induced cytotoxicity following DNA crosslinking pathway as ascertained from the comet assay. In the experiment, the researchers used Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0COA of Formula: C12H13N3)

Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. The compound is a tridentate ligand in coordination chemistry and commonly used to produce Zn-based chemosensors/probes, such as Zinpry.COA of Formula: C12H13N3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 1539-42-0In 2022 ,《[99mTc-BBPA]: A possible SPECT agent to understand the role of 18-kDa translocator protein (PBR/TSPO) during neuro-glial interaction》 was published in Bioorganic Chemistry. The article was written by Kumari, Neelam; Kaul, Ankur; Deepika; Srivastava, Krishna; Mishra, Gauri; Bhagat, Sunita; Singh, Vinay Kumar; KumarTiwari, Anjani. The article contains the following contents:

The translocator protein (TSPO, 18 kDa) is one of the most promising biomarker to understand the role of neuroinflammation in human as well as in different animal species. Here we report a new TSPO-selective ligand 2-(5-(2-(bis(pyridin-2-yl methyl)amino)acetamido)-2-oxobenzo[d] oxazol-3(2H)-yl)-N-methyl-N-phenylacetamide, BBPA, which is supposed to be a potential probe to understand the role of TSPO in neuro-glial interaction through SPECT modality. The experimental part of the paper was very detailed, including the reaction process of Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Related Products of 1539-42-0)

Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. The compound is a tridentate ligand in coordination chemistry and commonly used to produce Zn-based chemosensors/probes, such as Zinpry.Related Products of 1539-42-0

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of Bis(pyridin-2-ylmethyl)amineIn 2020 ,《Influence of ligand field on magnetic anisotropy in a family of pentacoordinate CoII complexes》 appeared in Dalton Transactions. The author of the article were Acharya, Joydev; Sarkar, Arup; Kumar, Pawan; Kumar, Vierandra; Flores Gonzalez, Jessica; Cador, Olivier; Pointillart, Fabrice; Rajaraman, Gopalan; Chandrasekhar, Vadapalli. The article conveys some information:

A family of mononuclear pentacoordinated CoII complexes, [Co(L)Cl2]·CH3OH (1), [Co(L)Br2] (2) and [Co(L)(NCS)2] (3) (L is 1-mesityl-N,N-bis(pyridin-2-ylmethyl)methanamine) were synthesized and characterized. In these complexes, the neutral non-planar ligand, L, binds to three coordination sites around the metal center while two others are bound by anionic halide/pseudo halide ligands. The coordination geometry of the complexes is dictated by the coordinated anionic ligands. Thus, the coordination geometry around the metal ion is distorted trigonal bipyramidal for complexes 1 and 3, while it is distorted square pyramidal for complex 2. Ab initio CASSCF/NEVPT2 calculations on the complexes reveal an easy plane magnetic anisotropy with the D and E/D values being, 13.3 and 0.14 cm-1 for 1; 36.1 and 0.24 cm-1 for 2 and ±8.6 and 0.32 cm-1 for 3. These values are in good agreement with the values that were extracted from the exptl. d.c. data. AC magnetic measurements reveal a field-induced slow relaxation of magnetization. However, clear maxima in the out-of-phase susceptibility curves were not observed for 1 and 3. For complex 2, peak maxima were observed when the measurements were carried out under an applied field of 1400 Oe which allowed an anal. of the dynamics of the slow relaxation of magnetization. The relaxation is mainly controlled by the Raman and direct processes with the values of the parameters found to be: B = 0.77(15) s-1 K-6.35, n = 6.35(12) and A = 3.41(4) x 10-10 s-1 Oe-4 K-1 and m = 4 (fixed). The ab initio calculation which showed the multifunctional nature of the electronic states of the complexes justifies the absence of zero-field SIM behavior of the complexes. The magnitude and sign of the D and E values and their relation with the covalency of the metal-ligand bonds was analyzed by the CASSCF/NEVPT2 as well as AILFT calculations In the experiment, the researchers used many compounds, for example, Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Reference of Bis(pyridin-2-ylmethyl)amine)

Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. The compound is a tridentate ligand in coordination chemistry and commonly used to produce Zn-based chemosensors/probes, such as Zinpry.Reference of Bis(pyridin-2-ylmethyl)amine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

《A cyanobiphenyl-based ratiometric fluorescent sensor for highly selective and sensitive detection of Zn2+》 was published in Inorganica Chimica Acta in 2020. These research results belong to Bie, Fusheng; Cao, Han; Yan, Peng; Cui, Haizhu; Shi, Yijun; Ma, Jie; Liu, Xuejing; Han, Ying. COA of Formula: C12H13N3 The article mentions the following:

A novel fluorescent sensor (BCN, I) based on cyanobiphenyl and di-2-picolylamine (DPA) was designed, synthesized and characterized by the UV-vis absorption, fluorescence spectra and NMR studies. This sensor demonstrated ratiometric response, high selectivity and sensitivity for the detection of Zn2+ without the interference of other metal ions particularly the Cd2+ in HEPES buffer/DMSO solution The Job’s plot, HRMS (high-resolution mass spectroscopy) and single-crystal X-ray diffraction revealed the formation of 1:1 stoichiometry for BCN-Zn2+ complex. The binding constant (Ka) of the complex was determined to be 3.67 x 104 M-1 and the detection limit for Zn2+ was calculated to be 0.77μM. The entire results certificated that BCN can be an advantageous sensor for Zn2+ detection. After reading the article, we found that the author used Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0COA of Formula: C12H13N3)

Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. As a tridentate ligand this compound provides three nitrogen donors that affords good selectivity for Zn2+ over biologically relevant metals such as Na+, K+, Mg2+ and Ca2+, and leaves coordination sites free for anion binding. COA of Formula: C12H13N3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

《Cu2+-based distance measurements by pulsed EPR provide distance constraints for DNA backbone conformations in solution》 was published in Nucleic Acids Research in 2020. These research results belong to Ghosh, Shreya; Lawless, Matthew J.; Brubaker, Hanna J.; Singewald, Kevin; Kurpiewski, Michael R.; Jen-Jacobson, Linda; Saxena, Sunil. Recommanded Product: 1539-42-0 The article mentions the following:

ESR (EPR) has become an important tool to probe conformational changes in nucleic acids. An array of EPR labels for nucleic acids are available, but they often come at the cost of long tethers, are dependent on the presence of a particular nucleotide or can be placed only at the termini. Site directed incorporation of Cu2+-chelated to a ligand, 2,2’dipicolylamine (DPA) is potentially an attractive strategy for site-specific, nucleotide independent Cu2+-labeling in DNA. To fully understand the potential of this label, we undertook a systematic and detailed anal. of the Cu2+-DPA motif using EPR and mol. dynamics (MD) simulations. We used continuous wave EPR experiments to characterize Cu2+ binding to DPA as well as optimize Cu2+ loading conditions. We performed double electron-electron resonance (DEER) experiments at two frequencies to elucidate orientational selectivity effects. Furthermore, comparison of DEER and MD simulated distance distributions reveal a remarkable agreement in the most probable distances. The results illustrate the efficacy of the Cu2+-DPA in reporting on DNA backbone conformations for sufficiently long base pair separations This labeling strategy can serve as an important tool for probing conformational changes in DNA upon interaction with other macromols. In the experiment, the researchers used Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Recommanded Product: 1539-42-0)

Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. As a tridentate ligand this compound provides three nitrogen donors that affords good selectivity for Zn2+ over biologically relevant metals such as Na+, K+, Mg2+ and Ca2+, and leaves coordination sites free for anion binding. Recommanded Product: 1539-42-0

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Das, Athulya; Rajeev, Anjana; Bhunia, Sarmistha; Arunkumar, Manivel; Chari, Nithya; Sankaralingam, Muniyandi published an article in 2021. The article was titled 《Synthesis, characterization and antimicrobial activity of nickel(II) complexes of tridentate N3 ligands》, and you may find the article in Inorganica Chimica Acta.SDS of cas: 1539-42-0 The information in the text is summarized as follows:

The desire to develop new antimicrobial agents against the rising threat of extensive antibiotic resistance led to the exploration of many natural and synthetic compounds Herein, the authors report the isolation and structural characterization of Ni(II) complexes [Ni(L)2]2+ (1 and 2) of tridentate N3 ligands such as bis(pyridin-2-ylmethyl)amine (L1) and 1-(1-methyl-1H-imidazol-2-yl)-N-(pyridin-2-ylmethyl)methanamine (L2). Both the complex cations of [Ni(L1)2]2+ (1) and [Ni(L2)2]2+ (2) possess a distorted octahedral coordination geometry in which Ni(II) is chelated to two equivalent of the tridentate L1 and L2 ligand in facial coordination, resp. 1 And 2 exhibit the bands in the visible region in UV-visible spectra and peaks in the downfield region in paramagnetic NMR spectra suggesting the octahedral coordination geometry of the complexes in solution as well. Further, complexes 1 and 2 were evaluated for their antimicrobial activity against various clin. pathogens. With in vitro studies, 1 displayed activity against Vibrio parahaemolyticus and V. alginolyticus, Staphylococcus aureus, Candida albicans, and Salmonella typhi, and 2 displayed activity against S. aureus, S. typhi, and C. albicans. With in vivo studies, complex 1 was effective in inhibiting Vibrio infection in brine shrimp larvae while having no toxicity on the larvae. The authors believe these results will encourage medicinal chemists to further the study on metal complexes against multi-resistant pathogens.Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0SDS of cas: 1539-42-0) was used in this study.

Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. As a tridentate ligand this compound provides three nitrogen donors that affords good selectivity for Zn2+ over biologically relevant metals such as Na+, K+, Mg2+ and Ca2+, and leaves coordination sites free for anion binding. SDS of cas: 1539-42-0

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem