copper chloride crystallization

Looking for a cost-effective and ecofriendly method for wastewater treatment is a global challenge. Therefore, this study investigated the removal of wastewater pollutants using copper oxide nanoparticles (CuONPs). CuONPs synthesized by a green solution combustion synthesis (SCS) and characterized by ultraviolet-visible spectroscopy (UV-Vis), Fourier transform infrared (FT-IR), powder X-ray diffraction analysis (PXRD), and scanning electron microscopy (SEM) techniques. PXRD showed nanoparticle sizes ranging from 10 to 20 polycrystalline patterns indexed with two peaks corresponding to (111) and (113) reflections of the face-centered cubic CuO crystal...

Two neutral copper(I) halide complexes ([Cu(BTU)2 X], X = Cl, Br) were prepared by the reduction of the corresponding copper(II) halides (chloride or bromide) with a benzoylthiourea (BTU, N -(3,4-diheptyloxybenzoyl)- N '-(4-heptadecafluorooctylphenyl)thiourea) ligand in ethanol. The two copper(I) complexes show a very interesting combination of 2D supramolecular structures, liquid crystalline, emission, and 1D ionic conduction properties. Their chemical structure was ascribed based on ESI-MS, elemental analysis, IR, and NMR spectroscopies (1 H and 13 C), while the mesomorphic behavior was analyzed through a combination of differential scanning calorimetry (DSC), polarizing optical microscopy (POM), and powder X-ray diffraction (XRD)...

Luminescent N -heterocyclic carbene chloride copper (I) complexes incorporating pyrene chromophore (1-Pyrenyl-NHC-R)-Cu-Cl, ( 3 , 4 ) have been prepared and fully characterized. Two complexes were prepared with R = methyl ( 3 ) and R = naphthyl groups ( 4 ) at the nitrogen center of the carbene unit to tune their electronic properties. The molecular structures of 3 and 4 have been elucidated by X-ray diffraction and confirm the formation of the target compounds. Preliminary results reveal that all compounds including the imidazole-pyrenyl ligand 1 are emissive in the blue region at room temperature in solution and in solid-state...

The influence of plasma-reduction treatment on iron and copper compounds at different oxidation states was investigated in this study. For this purpose, reduction experiments were carried out with artificially generated patina on metal sheets and with metal salt crystals of iron(II) sulfate (FeSO4 ), iron(III) chloride (FeCl3 ), and copper(II) chloride (CuCl2 ), as well as with the metal salt thin films of these compounds. All the experiments were carried out under cold low-pressure microwave plasma conditions; the main focus was on plasma reduction at a low pressure in order to evaluate an implementable process in a parylene-coating device...

Cobaltocenium carbaldehyde (formylcobaltocenium) hexafluoridophosphate, a long sought-after functionalized cobaltocenium salt, is accessible from cobaltocenium carboxylic acid by a three-step synthetic sequence involving (i) chlorination to the acid chloride, (ii) copper-borohydride reduction to the hydroxymethyl derivative, and (iii) Dess-Martin oxidation to the title compound. Due to the strongly electron-withdrawing cationic cobaltocenium moiety, no standard aldehyde reactivity is observed. Instead, nucleophilic addition followed by haloform-type cleavage prevails, thereby ruling out common useful aldehyde derivatization...

The dark-red title complex crystallized from an equimolar methanol solution of ( E )-5-(ethyl-amino)-4-methyl-2-[(pyridin-2-yl)diazen-yl]phenol and CuCl2 (phen) (phen = 1,10-phenanthroline) as a centrosymmetric dimer, [CuCl(C14 H15 N4 O)]2 . The Cu atoms are bridged by two Cl ligands and have a slightly distorted square-pyramidal coordination, where two N atoms from the azo and the pyridine moieties, a phenolic O and a Cl atom comprise the base and the other Cl occupies the apex position. The apical Cu-Cl bond, 2...

Mine water usually contains heavy metals and other inorganic and organic pollutants that contaminate water bodies. Reverse osmosis (RO) techniques are capable of producing purified water that meets discharge regulations. However, the problem of RO concentrate disposal and utilization is still not solved. The well-known zero liquid discharge (ZLD) process provides total concentrate utilization at the power industries but seems unreasonably expensive for the treatment of large amounts of mine water due to required chemical softening and the evaporation of concentrate...

Two dinuclear copper(II) complexes with macrocyclic Schiff bases K1 and K2 were prepared by the template reaction of ( R )-(+)-1,1'-binaphthalene-2,2'-diamine and 2-hydroxy-5-methyl-1,3-benzenedicarboxaldehyde K1 , or 4- tert -butyl-2,6-diformylphenol K2 with copper(II) chloride dihydrate. The compounds were characterized by spectroscopic methods. X-ray crystal structure determination and DFT calculations confirmed their geometry in solution and in the solid phase. Moreover, intermolecular interactions in the crystal structure of K2 were analyzed using 3D Hirshfeld surfaces and the related 2D fingerprint plots...

This work reports for the first time on the synthesis, characterization, and photodynamic therapy efficacy of the novel aluminium (III) chloride 2(3), 9(10), 16(17), 23(24)-tetrakis-(sodium 2-mercaptoacetate) phthalocyanine (AlClPcTS41) when alone and when conjugated to PEGylated copper-gold bimetallic nanoparticles (PEG-CuAuNPs) as photosensitizers on colon cancer cells (Caco-2). The novel AlClPcTS41 was covalently linked to the PEG-CuAuNPs via an amide bond to form AlClPcTS41-PEG-CuAuNPs. The amide bond was successfully confirmed using FTIR while the crystal structures were studied using XRD...

The synthesis, structural, phonon, optical, and magnetic properties of two hybrid organic-inorganic chlorides with monoprotonated methylhydrazinium cations (CH3 NH2 NH2 + , MHy+ ), [CH3 NH2 NH2 ]CdCl3 (MHyCdCl3 ), and [CH3 NH2 NH2 ]CuCl3 (MHyCuCl3 ), are reported. In contrast to previously reported MHy M II Cl3 ( M II = Mn2+ , Ni2+ , and Co2+ ) analogues, neither compound undergoes phase transitions. The MHyCuCl3 has a crystal structure familiar to previous crystals composed of edge-shared 1D chains of the [CuCl5 N] octahedra...

Here, we investigated the reaction of 1,3-dipolar cycloaddition of 1,3-diazido-2-nitro-2- azapropane (DANP) to propargyl alcohol over a copper-based catalyst and identified the optimum reaction conditions that enable the synthesis of 2-nitro-1,3-bis(4,4'-dihydroxymethyl)-1,2,3-triazolyl-2-azapropane ( 1 ) in more than 84% yield. The reaction between DANP, 1,5-diazido-3-nitrazapentane, and phenylacetylene produced the respective 1,2,3-triazole derivatives in 83% and 71% yields, respectively. The structures of the resultant compounds were validated by infrared and NMR spectroscopies and elemental analysis...

A new cis-dihalo copper(II) complex, [CuII (HLbz )(Cl)2 ].CH3 CN (1), where HLbz  = (S)-2-(((2-(2-(pyridin-2-yl)-2H-benzo[e][1,3]oxazin-3(4H)-yl)ethyl)amino)methyl)phenol), was isolated by reacting copper(II) chloride dihydrate and the H2 L ligand (H2 L = 2,2'-((2-(pyridin-2-yl)imidazolidine-1,3-diyl)bis(methylene))diphenol) in a MeOH/CH3 CN (1:3 v/v) mixture. The complex formation occurred via the ligand modification during complexation, producing a unique structure containing 2H-benzo[e][1,3]oxazin, as observed from the single crystal X-ray structure determination...

The four new complexes, [Cu(HL1 )(L2 )Cl] ( 1 ), [Cu(HL1 )(L1 )]∙Cl∙2H2 O ( 2 ), [Co(L1 )2 ]∙Cl ( 3 ) and [Cd(HL1 )I2 ]∙dmso ( 4 ), have been prepared by one-pot reactions of the respective chloride or iodide metal salt with a non-aqueous solution of the polydentate Schiff base, HL1 , resulted from in situ condensation of benzhydrazide and 2-pyridinecarboxaldehyde, while a ligand HL2 , in case of 1 , has been formed due to the oxidation of 2-pyridinecarboxaldehyde under reaction conditions...

The self-assembly of a carboxylate-based dinucleating ligand, N , N '-bis[2-carboxybenzomethyl]- N , N '-bis[2-pyridylmethyl]-1,3-diaminopropan-2-ol (H3 cpdp), and copper(II) ions in the presence of various exogenous ancillary ligands results in the formation of the new dinuclear complex [Cu2 (cpdp)(μ-Hisophth)]4 ·2H2 isophth·21H2 O ( 1 ), trinuclear complex [Cu3 (Hcpdp)(Cl)4 ] ( 2 ), and tetranuclear complex [Cu4 (cpdp)(μ-Hphth)(μ4 -phth)(piconol)(Cl)2 ]·3H2 O ( 3 ) (H2 phth = phthalic acid; H2 isophth = isophthalic acid; piconol = 2-pyridinemethanol; Cl- = chloride)...

A series of copper(II) complexes of 2-imino-2 H -chromen-3-yl-1,3,5-triazines 2a-h , 3-(benzoxazol-2-yl)-2 H -chromen-2-imines 4a-b , and 3-(benzothiazol-2-yl)-2 H -chromen-2-imines 6a-c were obtained by reacting of appropriate 2-iminocoumarin ligands L1a-h , L3a-b , and L5a-c with 3-fold molar excess of copper(II) chloride. The structure of these compounds was confirmed by IR spectroscopy, elemental analysis, and single-crystal X-ray diffraction data ( 2f , 2g , 2h , and 6c ). All the synthesized complexes were screened for their activity against five human cancer cell lines: DAN-G, A-427, LCLC-103H, SISO, and RT-4 by using a crystal violet microtiter plate assay and relationships between structure and in vitro cytotoxic activity are discussed...

4,4'-(Pyridine-3,5-diyl)dibenzoic acid (H2 pdba) was explored as an adaptable linker for assembling a diversity of new manganese(II), cobalt(II/III), nickel(II), and copper(II) coordination polymers (CPs): [Mn(μ4 -pdba)(H2 O)] n ( 1 ), {[M(μ3 -pdba)(phen)]·2H2 O} n (M = Co ( 2 ), Ni ( 3 )), {[Cu2 (μ3 -pdba)2 (bipy)]·2H2 O} n ( 4 ), {[Co(μ3 -pdba)(bipy)]·2H2 O} n ( 5 ), [Co2 (μ3 -pdba)(μ-Hbiim)2 (Hbiim)] n ( 6 ), and [M(μ4 -pdba)(py)] n (M = Co ( 7 ), Ni ( 8 )). The CPs were hydrothermally synthesized using metal(II) chloride precursors, H2 pdba, and different coligands functioning as crystallization mediators (phen: 1,10-phenanthroline; bipy: 2,2'-bipyridine, H2 biim: 2,2'-biimidazole; py: pyridine)...

Seven novel oxalate-based [CuII CrIII ] compounds: [Cu4 (terpy)4 Cl5 ][Cr(C2 O4 )3 ]·9H2 O (1; terpy = 2,2':6',2''-terpyridine), {[Cr2 Cu4 (H2 O)2 (terpy)4 (C2 O4 )7 ]·10H2 O} n (2), [Cr2 Cu4 (H2 O)2 (terpy)4 (C2 O4 )7 ]·12H2 O (3), [Cu(H2 O)3 (terpy)][CrCu(H2 O)(terpy)(C2 O4 )3 ]2 ·9H2 O (4), [Cu(H2 O)(terpy)(NO3 )][CrCu(H2 O)(terpy)(C2 O4 )3 ]·6H2 O (5), [CrCu2 (terpy)2 (C2 O4 )3 (NO3 )]·1.5H2 O·CH3 OH (6) and [Cr2 Cu4 (H2 O)4 (terpy)4 (C2 O4 )6 ][Cr2 Cu2 (terpy)2 (C2 O4 )6 ]·9H2 O·CH3 OH (7) were obtained from the reaction of an aqueous solution of the building block [Cr(C2 O4 )3 ]3- and a methanol solution containing Cu2+ ions and terpyridine ligand by the layering technique...

An acetate bridged tetranuclear copper(II) complex, [Cu4L2(μ2-η1:η1-CH3COO)6(CH3OH)2] (1), and a chloride, phenolate and azide co-bridged tetranuclear copper(II) complex, [Cu4L2Cl2(μ-Cl)2(μ1,1-N3)2]2CH3OH (2), where L is the deprotonated form of the Schiff base 5-bromo-2-((2-(2-hydroxyethylamino)ethylimino)methyl)phenol (HL), have been synthesized and characterized by elemental analysis, IR and UV spectra, and single crystal X-ray diffraction. Single crystal X-ray analysis revealed that the Cu atoms in both complexes are in square pyramidal geometry...

The present work reports the synthesis and investigation by semi-empirical Density Functional Theory (DFT), physical chemistry, and spectroscopic methods of two dithiocarbazates, 2-acetylpyridine-S-p-bromobenzyl-dithiocarbazate (HL1 ) and 2-acetylpyridine-S-p-nitrobenzyl-dithiocarbazate (HL2 ) and their Cu(II) complexes, [Cu(L1 )Cl] (1), [Cu(L1 )Br] (2), [Cu(L2 )Cl] (3) and [Cu(L2 )Br] (4). Single crystal X-ray analyzes showed distorted square planar geometry to the metal centers, which tridentate ligands coordinated by the NNS system and an additional halogen (Cl- or Br- ) to complete the coordination sphere...

The current study includes a systematic examination of copper corrosion initially in each of NaCl and Na2 SO4 solutions separately and then in the mixture solution of Cl- and SO4 2- ions as aggressive ions. Electrochemical current noise (ECN) signals resulting from asymmetric (Asy) as well as symmetric (Sym) cells have been interpreted using wavelet transform (WT) along with statistical procedures. The signals have been detrended and the decomposition of every signal has been carried out into 8 crystals. Then the standard deviation of every crystal has been illustrated with the standard deviation of partial signal (SDPS) plots...