105516-38-9Relevant articles and documents
Dinuclear Cu(II) complexes of compartmental Schiff base ligands formed from unsymmetrical tripodal amines of varying arm lengths: Crystal structure of [Cu2L1](ClO4)2 and theoretical studies
Keypour, Hassan,Shayesteh, Maryam,Rezaeivala, Majid,Sayin, Koray
, p. 110 - 118 (2016)
Three new dinuclear copper complexes were synthesized via condensation reaction of three new unsymmetrical N-capped tripodal amines and 2,6-diformyl-4-methylphenol, in the presence of copper(II) perchlorate. The solid-state structure of the dinuclear complex, [Cu2L1](ClO4)2, has been determined by X-ray crystallography, showing that the CuII centers have distorted square-pyramidal geometry with N3O2 coordination. The copper (II) ions are bridged by phenolic and hydroxyalkyl groups when in both cases, deprotonation of the hydrogen atoms of the OH groups occurs. The distance between the copper atoms is 3.062 ?. This compound consists of the dication [Cu2L1]2+ and two ClO4- anions in which one of ClO4- groups has a week interaction with one of the Cu atoms. All complexes were characterized by a variety of physico-chemical techniques such as elemental analyses, IR, mass spectra, conductivity measurements and electronic spectral studies. Computational investigation of mentioned binuclear Cu(II) complexes was done by using M062X method with LANL2DZ basis set in vacuo.
Dinuclear copper(II) complexes of “end-off” bicompartmental ligands: Alteration of the chelating arms on ligands to regulate the reactivity of the complexes towards DNA
Cao, Shuhong,Cheng, Run,Wang, Dandan,Zhao, Yunfeng,Tang, Ruiren,Yang, Xiuli,Chen, Jingwen
, p. 126 - 139 (2019)
Two phenol-based “end-off” biscompartmental heptadentate ligands were designed by introduction of substituents with different electronic and steric properties to the chelating arms, i.e. 2,6-bis{[(2-pyridylmethyl)(2-hydroxyethyl)amino]methyl}-4-methylphen
Synthesis, herbicidal activity, and structure-bioactivity relationship of pyridyl-containing 2-phenyliminothiazolidines
Li, Gangyue,Qian, Xuhong,Yan, Shenggang,Cui, Jingnan,Zhang, Rong,Xiao, Yi
, p. 169 - 178 (2008)
A series of novel 2-phenyliminothiazolidine derivatives were designed and synthesized. All title compounds were characterized by 1H NMR and, in some cases, by 13C NMR, IR, and HRMS. Their agricultural bioactivities were evaluated and some of these compounds exhibited efficient herbicidal activities against Echinochloa crusgalli, Sorghum vulgare, Digitaria sanguinalis, Eclipta prostrasta, Cucumis sativus, and Brassica campestris at 50∈μg/cm3. Analysis of the quantitative structure-activity relationship (QSAR) showed that the electronic parameter was the main factor to affect herbicidal activities.
Synthesis and characterization of mononuclear and dimeric Ni(II), Cu(II) and Cd(II) Schiff base complexes with two new asymmetrical tripodal amines. Crystal structures of Ni(II) and Cd(II) complexes and their antibacterial studies
Keypour, Hassan,Jamshidi, Amir Hossein,Rezaeivala, Majid,Valencia, Laura
, p. 872 - 878 (2013)
Two new tripodal amines, 2-[(2-aminoethyl)-pyridin-2-ylmethyl-amino]ethanol (1) and 2-[(3-aminopropyl)-pyridin-2-ylmethyl-amino]ethanol (2) have been prepared. These have been used to synthesis some new Schiff base complexes by template condensation with various aldehydes in the presence of Ni(II) and Cd(II) metal ions in methanol. Five new mononuclear complexes [NiL 1](ClO4), [ZnL1](ClO4), [CuL 1](ClO4), [NiL2](ClO4), [NiL 3](ClO4), and four new dimeric complexes [NiL 4]2(ClO4)2·1.5H 2O·0.5CH3CN, [NiL5]2(ClO 4)2, [NiL6]2(ClO4) 2 and [CdL6]2(ClO4)2 have been synthesized. All the complexes have been characterized using spectroscopic methods and the crystal structure of [NiL1](ClO4), [NiL4]2(ClO4)2·1.5H 2O·0.5CH3CN and [CdL6] 2(ClO4)2 were confirmed by single crystal X-ray diffraction studies. It is worth mentioning that as the chain length increases, dimeric complexes are obtained instead of mononuclear ones. Single crystal X-ray structure analysis showed that in the mononuclear Ni(II) complex, [NiL1](ClO4), the Ni(II) ion is in a distorted tetrahedral environment whilst in [NiL4]2(ClO4) 2·1.5H2O·0.5CH3CN and [CdL 6]2(ClO4)2, two distorted octahedral Ni(II) or Cd(II) ions are bridged asymmetrically by a pair of phenoxido groups. Also, the antibacterial activity of the synthesized Ni(II) complexes against Escherichia coli (Lio), Serratia marcescens (PTCC 1330), Staphylococcous aureus (ATCC 6633), and Proteus vulgaris (Lio) was screened. All Ni(II) complexes showed antibacterial effects and [NiL1](ClO4), [NiL 4]2(ClO4)2·1.5H 2O·0.5CH3CN and [NiL6] 2(ClO4)2 are more effective against E. coli.
Synthesis and in vitro reactivity of cis-dichloro-(pyridin-2-ylcarboxaldimine)platinum(II) complexes with DNA
Nikolcheva, Liliya G.,Vogels, Christopher M.,Stefan, R. Alexandra,Darwish, Hanni A.,Duffy, Stephen J.,Ireland, Robert J.,Decken, Andreas,Hudson, Robert H.E.,Westcott, Stephen A.
, p. 269 - 274 (2003)
Five platinum pyridin-2-ylcarboxaldimine complexes of the type cis-[PtCl2(2-C5H4NCH=NR)] (R = CH2CH2OH (1); R = N(CH2CH2)2O (2); R = C6H5 (3); R
Reactivity of organoplatinum complexes containing appended alcohol functional groups: Activation of dioxygen and hydrogen peroxide
Thompson, Kyle A.,Kadwell, Connor,Boyle, Paul D.,Puddephatt, Richard J.
, p. 22 - 30 (2017)
The oxidative addition reactions of platinum(II) complexes [PtMe2(RN=CH-2-C5H4N)], especially when R?=?CH2CH2OH or CH2CH2CH2OH, have been studied. Both complexes react
Effects of appended hydroxyl groups and ligand chain length on copper coordination and oxidation activity
Jehdaramarn, Attawit,Pornsuwan, Soraya,Chumsaeng, Phongnarin,Phomphrai, Khamphee,Sangtrirutnugul, Preeyanuch
, p. 654 - 661 (2018)
Treatment of a series of (imino)pyridine ligands bearing appended hydroxyl groups 2-((pyridin-2-ylmethylene)amino)phenol (Hpyph), 2-((pyridin-2-ylmethylene)amino)ethanol (Hpyet), and 3-((pyridin-2-ylmethylene)amino)propanol (Hpypr) with one equiv. of CuCl2·2H2O afforded the corresponding Cu(ii) complexes in low to moderate yields. The crystal structure of (μ-Cl)2[CuCl(κ2-N,N-Hpyet)]2 reveals a symmetric dinuclear structure with the bidentate N,N-coordination mode of (imino)pyridine with no Cu-OH interaction. On the other hand, the dinuclear Cu(ii) complex of the related propyl ligand Hpypr possesses a significantly different crystal structure involving nucleophilic addition of the hydroxyl group to the aldehyde group of 2-pyridinecarboxaldehyde. The Cu complex/Cu0/TEMPO/Na2CO3 (TEMPO = 2,2,6,6-tetramethylpiperidinyl-1-oxyl) catalyst system generally exhibited good activity for aerobic oxidation of benzyl alcohol to benzaldehyde in H2O at room temperature. The dinuclear Cu(ii) complex (μ-Cl)2[CuCl(κ2-N,N-Hpyet)]2 was demonstrated as an effective catalyst toward aerobic oxidation of various benzyl alcohol derivatives, cinnamyl alcohol, and 2-thiophenemethanol.
Structural characterization and magnetic property studies of a mixed-valence {CoIIICo II 4 } complex with a μ4-oxo tetrahedral {Co II 4 } motif
Fiorini, Guillermo,Carrella, Luca,Rentschler, Eva,Alborés, Pablo
, p. 932 - 940 (2020)
We have synthesized and structurally characterized a new mixed valence pentanuclear Co complex, bearing a rare μ4-O-tetrahedral CoII4 unit, by employing a pyridine-like Schiff base ligand. We have performed DC magnetic susceptibility and magnetization measurements over polycrystalline samples and chemical quantum computations in order to understand the exchange interaction pattern within Co(ii) sites and ground state magnetic anisotropy. This new complex shows an overall antiferromagnetic exchange interaction whose strength strongly depends on the local symmetry of Co(ii) sites. Also, local ion magnetic anisotropy reveals a strongly axial behaviour with the lowest Kramers doublet (KD) at each Co(ii) ion sufficiently isolated from excited states at low temperatures. Two Co(ii) sites show tetrahedral symmetry and the spin only formalism including axial zero-field splitting (ZFS) term properly described them; on the other hand, the other two Co(ii) sites have distorted octahedral and square base pyramidal coordination spheres, and a strong orbital contribution leads to a failure of the spin only formalism. A model of four Seff = 1/2 exchange interacting sites is necessary in order to account for low temperature magnetization behaviour. In view of the strongly anisotropic KD states, the exchange interactions are forced to be modelled as anisotropic ones. Overall, experimental data and quantum chemical computations are in good agreement, supporting the proposed model for magnetic behaviour.
Compound for detecting brassicaceous vegetable sclerotinia sclerotiorum and application thereof
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Paragraph 0063-0066, (2021/08/07)
The invention discloses a compound for detecting brassicaceous vegetable sclerotinia sclerotiorum, wherein the structure of the compound is shown in the specification, wherein in the formula, R1 is selected from hydrogen and halogen; R2 is selected from hydrogen and halogen; R3 is selected from hydrogen and halogen; R4 is selected from hydrogen and halogen; and R5 is selected from hydrogen and halogen. The compound provided by the invention can realize rapid detection of brassicaceous vegetable sclerotinia sclerotiorum, has the characteristics of high accuracy, low operation difficulty, short time consumption and the like, and is worthy of popularization and application.
Cadmium(II) complexes: Mimics of organophosphate pesticide degrading enzymes and metallo-β-lactamases
Daumann, Lena J.,Gahan, Lawrence R.,Comba, Peter,Schenk, Gerhard
experimental part, p. 7669 - 7681 (2012/09/05)
Figure Persented: Cadmium(II) complexes of ethyl 4-hydroxy-3,5-bis(((2- hydroxyethyl)(pyridin-2-ylmethyl)amino)methyl)benzoate (CO2EtH 3L1) and ethyl 4-hydroxy-3,5-bis(((2-methoxyethyl)(pyridin-2- ylmethyl)amino)methyl)benzoate (COs
