Category: 67-51-6

Category: pyrazoles-derivatives. In 2019.0 CHEM SCI published article about LATE-STAGE FUNCTIONALIZATION; DIAZO-COMPOUNDS; RH(III)-CATALYZED SYNTHESIS; BOND FUNCTIONALIZATION; DIRECT ARYLATION; CROSS-COUPLINGS; ACCESS; OLEFINATION; OXIDES; CYCLIZATION in [Dong, Yi; Chen, Jiajing; Zou, Wenxing; Lin, Songwen; Xu, Heng] Chinese Acad Med Sci, Peking Union Med Coll, Inst Mat Med, State Key Lab Bioact Subst & Funct Nat Med, Beijing 100050, Peoples R China; [Dong, Yi; Chen, Jiajing; Zou, Wenxing; Lin, Songwen; Xu, Heng] Chinese Acad Med Sci, Peking Union Med Coll, Inst Mat Med, Beijing Key Lab Act Subst Discovery & Druggabil E, Beijing 100050, Peoples R China; [Zhang, XuePeng] Peking Univ, Shenzhen Grad Sch, Lab Computat & Drug Design, Shenzhen 518055, Peoples R China in 2019.0, Cited 93.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.

The limitations of arene C-H functionalization of aryl sulfonamides containing strongly coordinating Nheterocycles were overcome using a Rh(III) catalyst. The site-selectivity of C-H carbenoid functionalization at the ortho position relative to either the sulfonamide or N-heterocycle directing groups was elegantly switched using solvents of different polarities and different additive concentrations. Importantly, sulfonamide-group-directed ortho-C-H carbenoid functionalization tolerated strongly coordinating N-heterocycles, including pyridine, pyrrole, thiazole, pyrimidine, and pyrazine. Density functional theory (DFT) calculations were performed to rationalize the reaction mechanisms and the influence of reaction polarity.

Welcome to talk about 67-51-6, If you have any questions, you can contact Dong, Y; Zhang, XP; Chen, JJ; Zou, WX; Lin, SW; Xu, H or send Email.. Category: pyrazoles-derivatives

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

Recently I am researching about VINYL POLYMERIZATION; CATALYTIC-ACTIVITY; ETHYLENE POLYMERIZATION; ADDITION POLYMERIZATION; NI COMPLEXES; LIGAND; PHOSPHINE; IRON; COORDINATION; PCN, Saw an article supported by the DST, New Delhi, IndiaDepartment of Science & Technology (India); DST FIST Level-II grant [SR/FST/CSII-026/2013]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Das, S; Subramaniyan, V; Mani, G. The CAS is 67-51-6. Through research, I have a further understanding and discovery of 3,5-Dimethyl-1H-pyrazole. Formula: C5H8N2

Unsymmetrical pincers have been shown to be better than the corresponding symmetrical pincers in several catalysis reactions. A new unsymmetrical PNN propincer, 2-(3,5-dimethylpyrazolylmethyl)-5-(diphenylphosphinomethyl)-pyrrole (1), was synthesized from pyrrole through Mannich bases in a good yield. In addition, the new byproduct 2-(3,5-dimethylpyrazolylmethyl)-5-(dimethylaminomethyl)-N-(hydroxymethyl)pyrrole was also isolated. The reaction of 1 with [PdCl2(PhCN)(2)] and Et3N in toluene yielded [PdCl-{C4H2N-2-(CH(2)Me(2)pz)-5-(CH2PPh2)-kappa P-3,N,N}] (2). The analogous reaction between 1 and [NiCl2(DME)] or NiX2 (X = Br, I) in the presence of NEt3 in acetonitrile afforded [NiX{C4H2N-2-(CH(2)Me(2)pz)-5-(CH2PPh2)-kappa P-3,N,N}] (3; X = Cl, Br, I). All complexes were structurally characterized. The norbornene polymerization behaviors of the unsymmetrical pincer complexes 2 and 3 in the presence of MMAO or EtAlCl2 were compared with those of the symmetrical pincer complexes chloro[2,5-bis(3,5-dimethylpyrazolylmethyl)pyrrolido]-palladium(II) (NNN), chloro[2,5-bis(diphenylphosphinomethyl)pyrrolido]palladium(II), and chloro[2,5-bis(diphenylphosphinomethyl)pyrrolido]nickel(II) (PNP) at different temperatures. The PNN and NNN complexes exhibited far greater activity on the order of 10(7) g of PNB/mol/h, with quantitative yields in some cases, in comparison to the PNP pincer palladium and nickel complexes. This trend was also supported by the Pr-i group substituted PNP nickel and palladium pincer complexes. These polymerization behaviors are explained using steric crowding around the metal atom with the support of NMR studies and suggested that the activity increases as the N-pyrazole donor increases. Polymers were characterized by H-1 NMR, IR, TGA, and powder XRD methods.

Formula: C5H8N2. Bye, fridends, I hope you can learn more about C5H8N2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

He, SR; Cao, CC; Wang, JL; Yang, JZ; Cheng, ZJ; Yan, BB; Pan, Y; Chen, GY in [He, Sirong; Cao, Congcong; Wang, Jinglan; Cheng, Zhanjun; Yan, Beibei] Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China; [Yang, Jiuzhong; Pan, Yang] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China; [Cheng, Zhanjun; Yan, Beibei] Tianjin Univ, Tianjin Engn Res Ctr Organ Wastes Safe Disposal &, Tianjin Key Lab Biomass Waste Utilizat, Key Lab Efficient Utilizat Low & Medium Energy, Tianjin 300072, Peoples R China; [Chen, Guanyi] Tianjin Univ Commerce, Sch Mech Engn, Tianjin 300134, Peoples R China published Pyrolysis study on cattle manure: From conventional analytical method to online study of pyrolysis photoionization time-of-flight mass spectrometry in 2020.0, Cited 38.0. SDS of cas: 67-51-6. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.

Cattle manure is a kind of abundant agriculture waste but potential renewable resource to be converted into fuel by pyrolysis. The pyrolysis behavior of cattle manure was analyzed by three methods in this work: thermogravimetric analyzer (TG), pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and pyrolysis photoionization time-of-flight mass spectrometry (Py-PI-TOFMS). The pyrolysis process of cattle manure included four stages, dehydration stage, lignocellulose decomposition stage, lignin and protein decomposition stage, char and mineral matter decomposition stage. The products were mainly classified into six groups: ketones, aldehydes, phenolic compounds, acids, hydrocarbons and N-containing compounds. Based on the time-evolved profiles and temperature-programmed profiles, the characteristics of these major products were analyzed and discussed. Maillard reaction has great effects on the pyrolysis process of cattle manure because cellulose can easily react with protein to produce abundant Amadori products and then generate cyclopentanes and furanmethanol. In addition, some Amadori products and amino acids can also be cyclized to generate N-heterocycle compounds like pyrroles and pyrazines. The decomposition of lignin basic units with more methoxy groups require higher reaction temperature, and the removal of hydroxy and methoxy group on phenols mainly occurred at around 350 degrees C. Furthermore, primary decomposition pathways of cattle manure were also proposed and discussed.

Welcome to talk about 67-51-6, If you have any questions, you can contact He, SR; Cao, CC; Wang, JL; Yang, JZ; Cheng, ZJ; Yan, BB; Pan, Y; Chen, GY or send Email.. SDS of cas: 67-51-6

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

An article Nanoscratch self-healing characteristics of polyvinyl polymer thin films embedded with Al2O3 nanoparticles with thermal and UV energy reactivity WOS:000601000000001 published article about BLOCKED ISOCYANATE; PHOTODIMERIZATION; POLYCARBONATE; MONOMERS; ADHESION; ACID in [Jang, Dong-Hoon; Park, Byung-Min; Han, Kwan-Young] Dankook Univ, Dept Display Engn, Cheonan Si 330714, Chungcheongnam, South Korea; [Kwon, Kyung Ho; Ree, Moonhor] Pohang Univ Sci & Technol, Polymer Res Inst, Div Adv Mat Sci, Dept Chem, Pohang 37673, South Korea in 2020.0, Cited 35.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6. Quality Control of 3,5-Dimethyl-1H-pyrazole

Self-healing materials can partially or completely heal the damage done to them, and it is expected that their original function will be thereby restored. Herein, we report a novel self-healing polyvinyl (Sh-PV) containing functional polymer that reacts to thermal and ultraviolet (UV) energy. The structure of Sh-PV was characterized by fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy (H-1 NMR). In addition, aluminum oxide (Al2O3) inorganic nanoparticles (NPs) were added and hybridized to improve their poor self-healing efficiency and surface hardness of the coated thin film. Mechanical nanoscratch testing and scanning probe microscopy (SPM) imaging of surface using a nanoindenter were performed to investigate the healing ability of self-healing thin films. The organic-inorganic hybrid self-healing polymer thin film exhibited a 10 % improvement in surface hardness as well as 100 % healing against nanoscale damage compared to virgin self-healing polymers. Here, we discuss and evaluate the optimized method and mechanism of the self-healing system based on the results of self-healing materials and physical recovery methods for healing surface damage.

Quality Control of 3,5-Dimethyl-1H-pyrazole. Welcome to talk about 67-51-6, If you have any questions, you can contact Jang, DH; Park, BM; Kwon, KH; Ree, M; Han, KY or send Email.

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

Quality Control of 3,5-Dimethyl-1H-pyrazole. Recently I am researching about CATALYZED N-ARYLATION; TOTAL-ENERGY CALCULATIONS; SINGLE-ATOM CATALYST; ARYL HALIDES; HETEROGENEOUS CATALYSIS; C-N; EFFICIENT; NITROGEN; LIGANDS; HYDROFORMYLATION, Saw an article supported by the Swiss National Science FoundationSwiss National Science Foundation (SNSF)European Commission; Stipendienfonds Schweizerische Chemische Industrie (SSCI); Henslow Research Fellowship at Girton College, Cambridge; Engineering and Physical Sciences Research Council (EPSRC)UK Research & Innovation (UKRI)Engineering & Physical Sciences Research Council (EPSRC) [EP/R025517/1]; EPSRCUK Research & Innovation (UKRI)Engineering & Physical Sciences Research Council (EPSRC). Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Vorobyeva, E; Gerken, VC; Mitchell, S; Sabadell-Rendon, A; Hauert, R; Xi, SB; Borgna, A; Klose, D; Collins, SM; Midgley, PA; Kepaptsoglou, DM; Ramasse, QM; Ruiz-Ferrando, A; Fako, E; Ortuno, MA; Lopez, N; Carreira, EM; Perez-Ramirez, J. The CAS is 67-51-6. Through research, I have a further understanding and discovery of 3,5-Dimethyl-1H-pyrazole

We report the promoting effect of graphitic carbon nitride in Cu-catalyzed N-arylation. The abundance of pyridinic coordination sites in this host permits the adsorption of copper iodide from the reaction medium. The key to achieving high activity is to confine active Cu species on the surface, which is accomplished by introducing atomically dispersed metal dopants to block diffusion into the bulk of the carrier. The alternative route of incorporating metal during the synthesis of graphitic carbon nitride is ineffective as Cu is thermodynamically more stable in inactive subsurface positions. A combination of X-ray absorption, X-ray photoelectron, and electron paramagnetic resonance spectroscopy, density functional theory, and kinetic Monte Carlo simulations is employed to determine the location and associated geometry as well as the electronic structure of metal centers. N-Arylation activity correlates to the surface coverage by copper, which varies during the reaction due to an interplay between site formation via adsorption from the reaction medium and deactivation by diffusion into the bulk of the material, and is highest when an Fe dopant is used to hinder such movement through the lattice.

Welcome to talk about 67-51-6, If you have any questions, you can contact Vorobyeva, E; Gerken, VC; Mitchell, S; Sabadell-Rendon, A; Hauert, R; Xi, SB; Borgna, A; Klose, D; Collins, SM; Midgley, PA; Kepaptsoglou, DM; Ramasse, QM; Ruiz-Ferrando, A; Fako, E; Ortuno, MA; Lopez, N; Carreira, EM; Perez-Ramirez, J or send Email.. Quality Control of 3,5-Dimethyl-1H-pyrazole

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

In 2019.0 BIOORGAN MED CHEM published article about BENZIMIDAZOLE; QUINOLONES; DRUGS; ANTIBACTERIAL; ARTEMISININ; STRATEGY in [Liu, Jie; Ren, Zhenghong; Fan, Li; Wei, Jianyong; Yang, Dacheng] Southwest Univ, Sch Chem & Chem Engn, Inst Bioorgan & Med Chem, Key Lab Appl Chem Chongqing Municipal, Chongqing 400715, Peoples R China; [Tang, Xuemei] Southwest Univ, Sch Life Sci, Chongqing 400715, Peoples R China; [Xu, Xingran] Southwest Univ, Coll Pharmaceut Sci, Chongqing 400715, Peoples R China in 2019.0, Cited 44.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6. Recommanded Product: 3,5-Dimethyl-1H-pyrazole

Based on the advantages of azole molecules and fluoroquinolone drugs, we designed and synthesized 34 clinafloxacin- azole conjugates using fragment-based drug design and drug combination principles. The in vitro activities of the synthesized conjugates against Mycobacterium tuberculosis (H37Rv), Hela cell as well as Gram-positive and Gram-negative bacteria were assayed. The bioassay results revealed that most of the target molecules had anti-tuberculosis (anti-TB) activity, of which 14 compounds had very strong anti-TB activity [minimum inhibitory concentration (MIC) < 2 mu M]. In addition, the compounds with strong activity towards H37Rv had weak activity towards Gram-negative and Gram-positive bacteria, showing obvious selectivity towards H37Rv. Predicted toxicity data indicated that 27 molecules were less toxic or equivalent to that of the original drug (clinafloxacin). Especially, it is demonstrated that compound TM2l exhibited the strongest anti-TB activity (MIC = 0.29 mu M), low antibacterial activity, negligible toxicity, and good drug-likeness values, which can be considered as an ideal lead molecule for future optimization. Bye, fridends, I hope you can learn more about C5H8N2, If you have any questions, you can browse other blog as well. See you lster.. Recommanded Product: 3,5-Dimethyl-1H-pyrazole

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

Recommanded Product: 67-51-6. I found the field of Biochemistry & Molecular Biology; Chemistry very interesting. Saw the article Controlling the reactivity of [Pd-(II)(N boolean AND N boolean AND N)Cl] plus complexes using 2,6-bis (pyrazol-2-yl)pyridine ligands for biological application: Substitution reactivity, CT-DNA interactions and in vitro cytotoxicity study published in 2020.0, Reprint Addresses Onunga, DO (corresponding author), Univ KwaZulu Natal, Sch Chem & Phys, Private Bag X01, ZA-3209 Pietermaritzburg, South Africa.; Jaganyi, D (corresponding author), Mt Kenya Univ, Sch Pure & Appl Sci, POB 342-01000, Thika, Kenya.; Onunga, DO (corresponding author), Maseno Univ, Dept Chem, POB 333-40105, Maseno, Kenya.. The CAS is 67-51-6. Through research, I have a further understanding and discovery of 3,5-Dimethyl-1H-pyrazole.

Four [(NNN)(PdCl)-Cl-(II)]+ complexes [chloride-(2,2 ‘:6 ‘,2 ”-terpyridine)Pd-(II)]Cl (PdL1), [chlorido(2,6-bis(N-pyrazol-2-yl)pyridine)Pd(II)]Cl (PdL2), [chlorido(2,6-bis(3,5-dimethyl-N-pyrazol-2-yl)pyridine)Pd(II)]Cl (PdL3) and [chlorido(2,6-bis(3,5-dimethyl-N-pyrazol-2-ylmethyl)pyridine)Pd(II)]BF4 (PdL4) were synthesized and characterized. The rates of substitution of these Pd(II) complexes with thiourea nucleophiles viz; thiourea (Tu), N,N ‘-dimethylthiourea (Dmtu) and N,N,N ‘,N ‘-tetramethylthiourea (Tmtu) was investigated under pseudo first order conditions as a function of nucleophile concentration [Nu] and temperature using the stopped-flow technique. The observed rate constants vary linearly with [Nu]; k(obs) = k(2)[Nu] and decreased in the order: PdL1 > PdL2 > PdL3 >> PdL4. The lower pi-acceptability of the cis-coordinated N-pyrazol-2-yl groups (which coordinates via pyrazollic-N pi-donor atoms) of the PdL2-4 significantly decelerates the reactivity relative to PdL1. Furthermore, the six-membered chelates having methylene bridge in PdL4 do not allow pi-extension in the ligand and introduces steric hindrance further lowering the reactivity. Trends in DFT calculated data supported the observed reactivity trend. Spectrophotometric titration data of complexes with calf thymus DNA (CT-DNA) and viscosity measurements of the resultant mixtures suggested that associative interactions occur between the complexes and CT-DNA, likely through groove binding with high binding constants (K-b = 10(4) M-1). In vitro MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] cytotoxic activity data showed that PdL1 was the most potent complex against MCF7 breast cancer cells; its IC50 value is lower than that of cisplatin. The results demonstrate how modification of a spectator ligand can be used to slow down the reactivity of Pd(II) complexes. This is of special importance in controlling drug toxicity in both pharmaceutical and biomedical applications.

Welcome to talk about 67-51-6, If you have any questions, you can contact Onunga, DO; Bellam, R; Mutua, GK; Sitati, M; BalaKumaran, MD; Jaganyi, D; Mambanda, A or send Email.. Recommanded Product: 67-51-6

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

An article Syntheses of Acyclic and Macrocyclic Compounds Derived from 9,9-Diethylfluorene (Part I) WOS:000593986800015 published article about PYRAZOLE-BASED RECEPTORS; N-ACETYLNEURAMINIC ACID; FLEXIBLE SIDE ARMS; MOLECULAR RECOGNITION; CARBOHYDRATE RECEPTORS; BINDING-PROPERTIES; FLUORENE DERIVATIVES; ARTIFICIAL RECEPTORS; BUILDING-BLOCK; ORGANIC-DYES in [Seidel, Pierre; Mazik, Monika] Tech Univ Bergakad Freiberg, Inst Organ Chem, Leipziger Str 29, D-09599 Freiberg, Germany in 2020.0, Cited 78.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6. Computed Properties of C5H8N2

A series of new 9,9-diethylfluorenes consisting of three side-arms each bearing a heterocyclic, bis(carboxymethyl)amino, bis(carbamoylmethyl)amino, bis(ethoxycarbonylmethyl)amino or an amino group were prepared on the basis of 2,4,7-tris(bromomethyl)-9,9-diethylfluorene. Imidazolyl, benzimidazolyl, pyrazolyl, pyrrolyl, 1,3-dioxoisoindolyl and pyridinium groups were taken into account as heterocyclic units, attached to the aromatic skeleton via -CH2-, -CH2NHCH2- or -CH2N=CH- linkers. In addition to the seventeen 2,4,7-trisubstituted 9,9-diethylfluorenes, two macrocyclic compounds were prepared on the basis of 2,7-bis(aminomethyl)-9,9-diethylfluorene. The excellent yield of the macrocyclization reaction is worth a special mention. Both the acyclic and the macrocyclic fluorene-based compounds have, among other things, the potential to act as artificial receptors for different substrates in analogy to the known receptors consisting of a benzene or biphenyl core.

Welcome to talk about 67-51-6, If you have any questions, you can contact Seidel, P; Mazik, M or send Email.. Computed Properties of C5H8N2

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

Recently I am researching about REGIOSELECTIVE IODINATION; NITROSYLSULFURIC ACID; AROMATIC-COMPOUNDS; EFFICIENT METHOD; NITROGEN-OXIDE; C-13 NMR; MILD; CONVENIENT; BROMINATION; 3,5-DIARYLISOXAZOLES, Saw an article supported by the Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-33-01109, 20-33-90030]; M.V. Lomonosov Moscow State University Program of Development. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Bondarenko, OB; Karetnikov, GL; Komarov, AI; Pavlov, AI; Nikolaeva, SN. The CAS is 67-51-6. Through research, I have a further understanding and discovery of 3,5-Dimethyl-1H-pyrazole. HPLC of Formula: C5H8N2

A new convenient and versatile halogenating system (R(4)NHal/NOHSO4), giving straightforward and general access to halogenated 3,5-diaryl- and alkylarylisoxazoles, pyrazoles and electron-rich benzenes from the corresponding scaffolds, is suggested. The method provides excellent regioselectivity, scalability to the gram scale, and a broad scope for both aromatics and halogens. A three-step, one-pot reaction protocol was developed, and a series of 3,5-diaryl-4-haloisoxazoles has been efficiently synthesized from 1,2-diarylcyclopropanes under suggested nitrosating-halogenating conditions.

Welcome to talk about 67-51-6, If you have any questions, you can contact Bondarenko, OB; Karetnikov, GL; Komarov, AI; Pavlov, AI; Nikolaeva, SN or send Email.. HPLC of Formula: C5H8N2

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

Liebing, P; Wang, L; Gilje, JW; Hilfert, L; Edelmann, FT in [Liebing, Phil; Wang, Ling; Hilfert, Liane; Edelmann, Frank T.] Otto von Guericke Univ, Chem Inst, Univ Pl 2, D-39106 Magdeburg, Germany; [Gilje, John W.] James Madison Univ, Dept Chem & Biochem, MSC 4501, Harrisonburg, VA 22807 USA published Supramolecular first-row transition metal complexes of 3-(3,5-dimethylpyrazol-1-yl)propanamide: Three different coordination modes in 2019.0, Cited 51.0. HPLC of Formula: C5H8N2. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.

Michael addition of 3-tert-butylpyrazole (1) or 3,5-dimethylpyrazole (2) to acrylamide afforded the pyrazolylpropanamide-type ligands 3-(3-tert-pyrazol-1-yl)propanamide (3, = (t)BuPPA) and 3-(3,5-dimethylpyrazol-1-yl)propanamide (4, = Me(2)PPA), respectively, in high isolated yields (3: 80%, 4: 76%). Reactions of 4 with selected first-row transition-metal chlorides (MnCl2 center dot 4H(2)O, CoCl2 center dot 6H(2)O, ZnCl2, CuCl2 center dot 2H(2)O) afforded the new complexes MnCl2(Me(2)PPA)(2) (5), [MCl2(Me(2)PPA)](2) (M = Co (6), Zn (7)), and CuCl2(Me(2)PPA)(2)center dot 2H(2)O (8). Ligand 3 and all four new complexes 58 have been structurally characterized though single-crystal X-ray diffraction. Surprisingly, the crystal structure determinations revealed three different coordination modes for the pyrazole-based ligand in these complexes. Seven-membered kappa N,kappa O-chelate rings are present in the manganese(II) complex 5. In contrast, kappa N: kappa O-bridging coordination of Me(2)PPA in compounds 6 and 7 leads to formation of dimers comprising 14-membered ring systems. Furthermore, unusual kappa N-monodentate coordination of Me2PPA has been found in the structure of the hydrated copper(II) complex Cu(Me(2)PPA)(2)Cl-2 center dot 2H(2)O (8). In the crystalline state, all four complexes 58 form one- or two-dimensional supramolecular structures assembled through different types of hydrogen bonding. (C) 2019 Elsevier Ltd. All rights reserved.

HPLC of Formula: C5H8N2. Bye, fridends, I hope you can learn more about C5H8N2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics