Category: 94-91-7

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.94-91-7, Name is N,N’-Bis(salicylidene)-1,2-propanediamine, molecular formula is C17H18N2O2. In a Article£¬once mentioned of 94-91-7, Recommanded Product: 94-91-7

Spectroscopic properties of the palladium(II) complex with bis(salicylidene)-1,2-propylenediamine

According to spectroscopic data, the lifetime of the excited electronic state of the Pd(II) complex with bis(salicylidene)-1,2-propylenediamine in dichloromethane is equal to 60 mus at 77 K. Quantum yield (Phi = 0.35) and radiative and nonradiative decay rates are calculated for the triplet excited state. It is found that the monomers combine into aggregates with an increase in the concentration of the complex from 1 ¡Á 10-5 to 5 ¡Á 10-4 mol/1 in dichloromethane and acetonitrile solutions at 77 K, leading to a decrease in the phosphorescence quantum yield at a constant lifetime of the excited state. The origin of the formation of molecular ensembles is discussed.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Recommanded Product: 94-91-7, you can also check out more blogs about94-91-7

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In an article, published in an article, once mentioned the application of 94-91-7, Name is N,N’-Bis(salicylidene)-1,2-propanediamine,molecular formula is C17H18N2O2, is a conventional compound. this article was the specific content is as follows.HPLC of Formula: C17H18N2O2

Out-of-plane dimeric MnIII quadridentate Schiff-base complexes: Synthesis, structure and magnetic properties

Four MnIII quadridentate Schiff-base compounds have been prepared and structurally characterized: [Mn(salpn)(CH3OH)2]BPh4 (1), [Mn2(salpn)2(N3)2] (2), [Mn2(salpn)2(NCS)2] (3), [Mn2(salpn)2(H2O)2](H2O)(ClO4)2 (4) (salpn = N,N?-(1,2-propylene)-bis-(salicylideneiminate)). Among them, 1 is a discrete MnIII monomeric complex with a square-bipyramidal geometry. Complexes 2, 3 and 4 form the similar phenolate-bridged out-of-plane dimers. Magnetic susceptibility studies reveal that 2, 3 and 4 all exhibit ferromagnetic intra-dimer coupling between MnIII ions.

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In an article, published in an article, once mentioned the application of 94-91-7, Name is N,N’-Bis(salicylidene)-1,2-propanediamine,molecular formula is C17H18N2O2, is a conventional compound. this article was the specific content is as follows.Product Details of 94-91-7

Synthesis and characterization of ruthenium(III) schiff base and macrocyclic complexes

The ruthenium(III) complexes of schiff bases and macrocylic ligands are electroactive, exhibiting metal-centered Ru(IV)/Ru(III) couple and irreversible reduction. EPR studies suggest that the complexes have axial symmetry but are distorted in nature.

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Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 94-91-7, 94-91-7, C17H18N2O2. A document type is Article, introducing its new discovery.

Syntheses, structures and electrochemical properties of ruthenium(II/III) complexes with tetradentate Schiff base ligands

Three unsymmetrical tetradentate Schiff base ligands, H2salipn, H2salipn-Br4 and H2salipn-Cl2, have been synthesized from the typical condensation reactions of treating 1,2-diaminopropane with salicylaldehyde, 3,5-dibromosalicylaldehyde and 5-chlorosalicylaldehyde, respectively. Treatment of [RuCl2(PPh3)3] with one equivalent of H2salipn or H2salipn-Br4 in the presence of triethylamine in tetrahydrofuran (THF) afforded the corresponding ruthenium(III) complexes [RuIIICl(PPh3)(salipn)] (1) and [RuIIICl(PPh3)(salipn-Br4)] (2). Interaction of [RuHCl(CO)(PPh3)3] with one equivalent of H2salipn-Cl2 or H2salipn-Br4 under the same conditions led to isolation of ruthenium(II) complexes [RuII(CO)(PPh3)(salalipn-Cl2)] (3) and [RuII(CO)(PPh3)(salalipn-Br4)] (4), respectively, in which one of the imine bonds was nucleophilically attacked by hydride to result in the formation of a mixed imine-amine ligand. The molecular structures of 1?1.5CH2Cl2, 2, 3?0.5CH2Cl2 and 4 have been determined by single-crystal X-ray crystallography. The electrochemical properties of 1?4 were also investigated. Their cyclic voltammograms displayed quasi-reversible Ru(IV)/Ru(III) and Ru(III)/Ru(II) couples with Eo ranging from 0.67 to 1.05 V and 0.74 to 0.80 V vs. Ag/AgCl (0.1 M), respectively. (Figure presented.).

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As a common heterocyclic compound, it belongs to quinuclidine compound,Quinuclidine-4-carboxylic acid hydrochloride,40117-63-3,Molecular formula: C8H14ClNO170,mainly used in chemical industry, its synthesis route is as follows.,94-91-7

An ethanolic solution (5mL) of 1,2-diaminopropane (0.109g, 1mmol) was added dropwise to ethanolic solution (10mL) of salicylaldehyde (0.244g, 2mmol) and the resulting mixture was stirred for half an hour. Then, an ethanolic solution (10mL) of iron(III) perchlorate (0.354g, 1mmol) was added under continuous stirring condition and followed by the addition of 5mL ethanolic solution of 4 4?-bipyridine (0.156g, 1mmol). Resulting solution was then allowed to stir for one hour and filtered. Deep brown colored X-ray suitable square shaped crystals were obtained from the filtrate. Yield: 85%. Anal. Calcd. C, 54.74; H, 4.05; N, 9.46. Found: C, 54.73; H, 4.03; N, 9.44; FTIR: nu(C=N)=1614cm-1, nu(skeletal vibration)=1545cm-1, nu(ClO4-)=1087cm1; UV-Vis (methanol): 235, 322 and 509nm.

With the complex challenges of chemical substances, we look forward to future research findings about N,N’-Bis(salicylidene)-1,2-propanediamine,belong chiral-catalyst compound

Reference£º
Article; Chatterjee, Sourav; Sukul, Dipankar; Banerjee, Priyabrata; Adhikary, Jaydeep; Inorganica Chimica Acta; vol. 474; (2018); p. 105 – 112;,
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Name is N,N’-Bis(salicylidene)-1,2-propanediamine, as a common heterocyclic compound, it belongs to chiral-catalyst compound, and cas is 94-91-7, its synthesis route is as follows.,94-91-7

General procedure: To a round-bottomed flask with a stir bar was placed with [Ru(PPh3)3Cl2] (868 mg, 2.0 mmol) under the nitrogen. Pre-dried THF(10 mL) was added and the resulting mixture was stirred at room temperature. Then salen-enH2 (536 mg, 2.0 mmol) and a little excess of Et3N (252 mg, 2.5 mmol) in THF (5 mL) were added. The reaction mixture was stirred at room temperature overnight. After removal of solvents, CH2Cl2 (15 mL) was added and the solution was filtered through cilite. The filtrate was concentrated and the residue was washed with Et2O (5mL 2) and hexane (5 mL 2) to give the desired product. Recrystallization from CH2Cl2/Et2O (1:2) afforded green block-shaped crystals of [RuCl(PPh3)(salen)] (3) suitable for X-ray diffraction in three days. Yield: 1011 mg, 76% (based on Ru).

With the complex challenges of chemical substances, we look forward to future research findings about N,N’-Bis(salicylidene)-1,2-propanediamine

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Article; Tang, Li-Hua; Wu, Fule; Lin, Hui; Jia, Ai-Quan; Zhang, Qian-Feng; Inorganica Chimica Acta; vol. 477; (2018); p. 212 – 218;,
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N,N’-Bis(salicylidene)-1,2-propanediamine, cas is 94-91-7, it is a common heterocyclic compound, the chiral-catalyst compound, its synthesis route is as follows.,94-91-7

General procedure: A mixture of diimine (10 mmol) and amidophosphite(10 mmol) in acetonitrile (20 mL) was refluxed for 1 h. Thesolvent was removed by distillation; the residue was dissolved inamethylene chloride-hexane mixture. The precipitated productwas recrystallized from benzene.

With the rapid development of chemical substances, we look forward to future research findings about N,N’-Bis(salicylidene)-1,2-propanediamine

Reference£º
Article; Pudovik, Michael A.; Kibardina, Ludmila K.; Terent’eva, Svetlana A.; Dobrynin, Alexey B.; Trifonov, Alexey V.; Burilov, Alexander R.; Phosphorus, Sulfur and Silicon and the Related Elements; vol. 194; 9; (2019); p. 861 – 865;,
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94-91-7, N,N’-Bis(salicylidene)-1,2-propanediamine is a chiral-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,94-91-7

General procedure: Uranyl acetate dehydrate (1 mmol) and synthesized Schiff base (1 mmol) (1:1 ratio) were mixed in methanol (25 ml). The mixture was refluxed for 3 h and then allowed to cool to room temperature. An orange (red) precipitate was filtered off, washed with methanol, and dried at room temperature (Scheme 1).

94-91-7 N,N’-Bis(salicylidene)-1,2-propanediamine 7210, achiral-catalyst compound, is more and more widely used in various fields.

Reference£º
Article; Asadi, Zahra; Shorkaei, Mohammad Ranjkesh; Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy; vol. 105; (2013); p. 344 – 351;,
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Chiral catalysts – SlideShare

 

94-91-7,94-91-7, N,N’-Bis(salicylidene)-1,2-propanediamine is a chiral-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To a round-bottomed flask with a stir bar was placed with [Ru(PPh3)3Cl2] (868 mg, 2.0 mmol) under the nitrogen. Pre-dried THF(10 mL) was added and the resulting mixture was stirred at room temperature. Then salen-enH2 (536 mg, 2.0 mmol) and a little excess of Et3N (252 mg, 2.5 mmol) in THF (5 mL) were added. The reaction mixture was stirred at room temperature overnight. After removal of solvents, CH2Cl2 (15 mL) was added and the solution was filtered through cilite. The filtrate was concentrated and the residue was washed with Et2O (5mL 2) and hexane (5 mL 2) to give the desired product. Recrystallization from CH2Cl2/Et2O (1:2) afforded green block-shaped crystals of [RuCl(PPh3)(salen)] (3) suitable for X-ray diffraction in three days. Yield: 1011 mg, 76% (based on Ru).

The synthetic route of 94-91-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Tang, Li-Hua; Wu, Fule; Lin, Hui; Jia, Ai-Quan; Zhang, Qian-Feng; Inorganica Chimica Acta; vol. 477; (2018); p. 212 – 218;,
Chiral Catalysts
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N,N’-Bis(salicylidene)-1,2-propanediamine, cas is 94-91-7, it is a common heterocyclic compound, the chiral-catalyst compound, its synthesis route is as follows.,94-91-7

A mixture of H2salipn (28.2mg, 0.100mmol) and [Ru(PPh3)3Cl2] (95.8mg, 0.100mmol) inTHF (30mL) was refluxed with stirring for 6 h, during which there was a color changefrom brown to dark green. The solvent was evaporated in vacuo, and the residue waswashed with diethyl ether (5mL 2) and hexane (5mL 2). Recrystallization fromCH2Cl2/hexane afforded black block crystals of 11.5CH2Cl2 in 7 days. Yield: 33.4mg,55.6% (based on Ru). IR (KBr disc, cm-1): 1594 (C=N), 1314 (Ar-O); MS (FAB): m/z 679[M], 644 [M – Cl], 417 [M – PPh3]. Anal. Calcd. for C35H31N2O2PClRu1.5(CH2Cl2) (%): C,54.41; H, 4.26; N, 3.48. Found: C, 54.47; H, 4.23; N, 3.50.

As the rapid development of chemical substances, we look forward to future research findings about 94-91-7

Reference£º
Article; Ji, Jiao; Chen, Xin; Wang, Chang-Jiu; Jia, Ai-Quan; Zhang, Qian-Feng; Journal of Coordination Chemistry; vol. 72; 3; (2019); p. 480 – 490;,
Chiral Catalysts
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