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copper chloride crystallization

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https://www.readbyqxmd.com/read/28977714/the-intermetalloid-cluster-cation-cubi8-3
#1
Maximilian Knies, Martin Kaiser, Anna Isaeva, Ulrike Müller, Thomas Doert, Michael Ruck
The reaction of Bi, BiCl3, and CuCl in the ionic liquid [BMIm]Cl·4AlCl3 (BMIm = 1-n-butyl-3-methylimidazolium) at 180 °C yielded air-sensitive shiny black crystals of (CuBi8)[AlCl4]2[Al2Cl7] and (CuBi8)[AlCl4]3. For both compounds X-ray diffraction on single crystals revealed monoclinic structures that contain the intermetalloid cluster (CuBi8)3+. It is the first pure bismuth cluster with a 3d metal and the first with a metal that is not forming binary intermetallics with bismuth under ambient pressure. The cluster can be interpreted either as a copper(I) cation, η4-coordinated by a square-antiprismatic Bi82+ polycation (Bi-Cu 267 pm), or as a nine-atomic intermetalloid nido-cluster with 22 skeletal electrons and the C4v symmetry...
October 4, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28529784/%C3%AE-3-chlorido-%C3%AE-2-chlorido-%C3%AE-3-pyrrolidine-1-carbo-dithio-ato-%C3%AE%C2%BA-4-s-s-s-s-tris-tri-ethyl-phosphane-%C3%AE%C2%BAp-copper-i-crystal-structure-and-hirshfeld-surface-analysis
#2
Yi Jiun Tan, Chien Ing Yeo, Nathan R Halcovitch, Mukesh M Jotani, Edward R T Tiekink
The title trinuclear compound, [Cu3(C5H8NS2)Cl2(C6H15P)3], has the di-thio-carbamate ligand symmetrically chelating one Cu(I) atom and each of the S atoms bridging to another Cu(I) atom. Both chloride ligands are bridging, one being μ3- and the other μ2-bridging. Each Et3P ligand occupies a terminal position. Two of the Cu(I) atoms exist within Cl2PS donor sets and the third is based on a ClPS2 donor set, with each coordination geometry based on a distorted tetra-hedron. The constituents defining the core of the mol-ecule, i...
May 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28406628/ferromagnetic-exchange-in-bichloride-bridged-cu-ii-chains-magnetostructural-correlations-between-ordered-and-disordered-systems
#3
Susan N Herringer, Christopher P Landee, Mark M Turnbull, Jordi Ribas-Ariño, Juan J Novoa, Matthew Polson, Jan L Wikaira
The synthesis, structure, magnetic properties, and theoretical analysis of a new phase of dichloro(2-chloro-3-methylpyridine)copper(II) (2) and its isomorphous analogue dichloro(2-bromo-3-methylpyridine)copper(II) (3) are reported. Both complexes crystallize in the orthorhombic space group Pbca and present square pyramidal Cu(II) ions bridged into chains by chloride ions with each copper(II) bearing a single pyridine ligand. Variable temperature magnetic susceptibility measurements were well fit by a uniform one-dimensional ferromagnetic chain model with 2, J = 69...
April 13, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28378716/unusual-4-arsonoanilinium-cationic-species-in-the-hydrochloride-salt-of-4-aminophenyl-arsonic-acid-and-formed-in-the-reaction-of-the-acid-with-copper-ii-sulfate-copper-ii-chloride-and-cadmium-chloride
#4
Graham Smith, Urs D Wermuth
Structures having the unusual protonated 4-arsonoanilinium species, namely in the hydrochloride salt, C6H9AsNO3(+)·Cl(-), (I), and the complex salts formed from the reaction of (4-aminophenyl)arsonic acid (p-arsanilic acid) with copper(II) sulfate, i.e. hexaaquacopper(II) bis(4-arsonoanilinium) disulfate dihydrate, (C6H9AsNO3)2[Cu(H2O)6](SO4)2·2H2O, (II), with copper(II) chloride, i.e. poly[bis(4-arsonoanilinium) [tetra-μ-chlorido-cuprate(II)]], {(C6H9AsNO3)2[CuCl4]}n, (III), and with cadmium chloride, i...
April 1, 2017: Acta Crystallographica. Section C, Structural Chemistry
https://www.readbyqxmd.com/read/28217352/crystal-structure-of-a-chloride-bridged-copper-ii-dimer-piperazine-1-4-dium-bis-di-%C3%AE-chlorido-bis-4-carboxypyridine-2-carboxyl-ato-%C3%AE%C2%BA-2-n-o-2-chlorido-cuprate-ii
#5
Bassey Enyi Inah, Ayi Anyama Ayi, Amit Adhikary
Crystals of a new dimeric chloride-bridged cuprate(II) derived from pyridine-2,4-di-carb-oxy-lic acid were obtained solvothermally in the presence of piperazine and hydro-chloric acid. The crystal structure determination of the title salt, (C4H12N2)[Cu2(C7H4NO4)2Cl4], revealed one of the carboxyl groups of the original pyridine-2,4-di-carb-oxy-lic acid ligand to be protonated, whereas the other is deprotonated and binds together with the pyridine N atom to the Cu(II) atom. The coordination environment of the Cu(II) atom is distorted square-pyramidal...
February 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28059406/cubane-like-tetranuclear-cu-ii-complexes-bearing-a-cu4o4-core-crystal-structure-magnetic-properties-dft-calculations-and-phenoxazinone-synthase-like-activity
#6
Shipra Sagar, Swaraj Sengupta, Antonio J Mota, Shyamal K Chattopadhyay, Arturo Espinosa Ferao, Eric Riviere, William Lewis, Subhendu Naskar
In the present work, two new copper complexes 3a and 3b with a Cu4O4 cubane core are reported. Both complexes are obtained by means of the in situ conversion of the imine functionality of Schiff's base ligands 1a [(E)-4-chloro-2-((thiazol-2-ylimino)methyl)phenol] and 1b [(E)-4-bromo-2-((thiazol-2-ylimino)methyl)phenol] into amino alcohols 2a (4-chloro-2-(hydroxy(thiazol-2-ylamino)methyl)phenol) and 2b (4-bromo-2-(hydroxy(thiazol-2-ylamino)methyl)phenol), respectively. The ligand transformation may be metal assisted and the generated ligands show an interesting mode of coordination in which the alkoxo-O atom binds in a μ(3)-manner connecting simultaneously three copper centers and forming a Cu4O4 cubane core...
January 6, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27815978/copper-ii-complexes-possessing-alkyl-substituted-polypyridyl-ligands-structural-characterization-and-in-vitro-antitumor-activity
#7
Noah R Angel, Raneen M Khatib, Julia Jenkins, Michelle Smith, Justin M Rubalcava, Brian Khoa Le, Daniel Lussier, Zhuo Georgia Chen, Fook S Tham, Emma H Wilson, Jack F Eichler
In an effort to find alternatives to the antitumor drug cisplatin, a series of copper (II) complexes possessing alkyl-substituted polypyridyl ligands have been synthesized. Eight new complexes are reported herein: μ-dichloro-bis{2,9-di-sec-butyl-1,10-phenanthrolinechlorocopper(II)} {[((di-sec-butyl)phen)ClCu(μ-Cl)2CuCl((di-sec-butyl)phen)]}(1), 2-sec-butyl-1,10-phenanthrolinedichlorocopper(II) {([mono-sec-butyl)phen) CuCl2} (2), 2,9-di-n-butyl-1,10-phenanthrolinedichlorocopper(II) {[(di-n-butyl)phen) CuCl2}(3), 2-n-butyl-1,10-phenanthrolinedichlorocopper(II) {[(mono-n-butyl)phen) CuCl2} (4), 2,9-di-methyl-1,10-phenanthrolineaquadichlorocopper(II) {[(di-methyl)phen) Cu(H2O)Cl2}(5), μ-dichloro-bis{6-sec-butyl-2,2'-bipyridinedichlorocopper(II)} {((mono-sec-butyl)bipy) ClCu(μ-Cl)2CuCl((mono-sec-butyl)bipy)} (6), 6,6'-di-methyl-2,2'-bipyridinedichlorocopper(II) {(6,6'-di-methyl)bipy) CuCl2} (7), and 4,4'-dimethyl-2,2'-bipyridinedichlorocopper(II) {(4,4'-di-methyl)bipy) CuCl2} (8)...
January 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/27766730/structure-and-reaction-chemistry-of-magnesium-organocuprates-derived-from-magnesiacyclopentadienes-and-copper-i-salts
#8
Liang Liu, Junnian Wei, Yue Chi, Wen-Xiong Zhang, Zhenfeng Xi
The chemistry of magnesium organocuprates, including their synthesis, structures, and reactions, remains underexplored. In this work, by taking advantage of the high reactivity and ready availability of magnesiacyclopentadienes, a series of magnesiacyclopentadiene-based organocuprates were synthesized and structurally characterized. A variety of CuX salts (X=Cl, Br, I, or alkynyl) were successfully applied to react with magnesiacyclopentadienes. Besides CuX salts, AgX salts (X=Cl, alkynyl) also undergwent the above reaction to afford the corresponding magnesium organoargentates...
November 14, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27746928/crystal-structure-of-di-chlorido-2-methyl-2-pyridin-2-ylmeth-yl-amino-propan-1-ol-%C3%AE%C2%BA-3-n-n-o-copper-ii-from-synchrotron-data
#9
Jong Won Shin, Dong Won Lee, Dae-Woong Kim, Dohyun Moon
The title compound, [CuCl2(C10H16N2O)], has been synthesized and characterized by synchrotron single-crystal X-ray diffraction and FT-IR spectroscopy. The 2-methyl-2-[(pyridin-2-ylmeth-yl)amino]-propan-1-ol (mpmapOH) ligand, including pyridine, amine and hy-droxy groups, was synthesized by the reaction of 2-amino-2-methyl-propan-1-ol with pyridine-2-carbaldehyde and was characterized by NMR spectroscopy. In its Cu(II) complex, the metal ion has a distorted square-pyramidal coordination geometry with two N and one O atom of the mpmapOH ligand and one chloride anion in the equatorial plane, and the second chloride in an axial position...
October 1, 2016: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/27722347/multinuclear-ni-ii-cu-ii-and-zn-ii-complexes-of-chiral-macrocyclic-nonaazamine
#10
Marta Löffler, Janusz Gregoliński, Maria Korabik, Tadeusz Lis, Jerzy Lisowski
The chiral macrocyclic amines R-L and S-L derived from the 3 + 3 condensation of 2,6-diformylpyridine and (1R,2R)-1,2-diaminocyclohexane or (1S,2S)-1,2-diaminocyclohexane form enantiopure trinuclear Ni(ii) and Cu(ii) complexes [Ni3(L)(H2O)2Cl5]Cl and [Cu3(L)Cl4]Cl2 and form the dinuclear complex [Zn2(L)Cl2](ZnCl4) with Zn(ii). The X-ray crystal structures of these complexes indicate remarkably different conformations of the ligand and different binding modes of the chloride anions. The structure of the copper(ii) derivative [Cu3(R-L)Cl4]Cl2·CH3CN·7...
October 4, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27720592/sonochemical-synthesis-and-structural-determination-of-novel-the-nano-card-house-cu-ii-metal-organic-coordination-system
#11
Faeze Mojtabazade, Babak Mirtamizdoust, Ali Morsali, Pejman Talemi
A sonochemical method by using various time and concentrations of initial reagents and power of irradiation, was used to synthesize nano-card house of a new copper(II) metal-organic coordination system, {[Cu2(p-2yeinh)2Cl2]·(H2O)}n (1), where p-2yeinh=pyridin-2-yl ethylidene-isonicotinohydrazide. The compound was characterized by scanning electron microscopy (SEM), elemental analysis, IR spectroscopy, X-ray powder diffraction (XPRD), and single crystal X-ray analysis. The X-ray structure revealed that the Cu(II) atom is coordinated by one oxygen and three nitrogen atoms from two p-2yeinh ligands and one chloride anion with a CuN3OCl donor set with square pyramid geometry...
March 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/27711748/solution-equilibria-and-the-x-ray-structure-of-cu-ii-complexation-with-3-amino-n-pyridin-2-ylmethyl-propanamide-a-pseudo-mimic-of-human-serum-albumin
#12
Graham E Jackson, Fatin M Elmagbari, Ahmed N Hammouda, Raffaele P Bonomo
Copper complexes have anti-inflammatory activity in the treatment of inflammation associated with rheumatoid arthritis (RA). The preferred route of administration is through the skin, so the rate of dermal absorption and bioavailability of copper is important. Based on previous studies, 3-amino-N-(pyridin-2-ylmethyl)-propanamide, [H(56)NH2], was designed as a potential chelator of copper. The stability constant measurements revealed that MLH-1 is the most stable species at the physiological pH of 7.4. The X-ray crystal structure of this species was solved and copper was found in a rectangular pyramidal geometry...
October 4, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27536407/crystal-structure-of-bis-2-5-bis-pyridin-2-yl-1-3-4-thia-diazole-%C3%AE%C2%BA-2-n-2-n-3-bis-thio-cyanato-%C3%AE%C2%BAs-copper-ii
#13
Abdelhakim Laachir, Fouad Bentiss, Salaheddine Guesmi, Mohamed Saadi, Lahcen El Ammari
The mononuclear title complex, [Cu(SCN)2(C12H8N4S)2], was obtained by the reaction of 2,5-bis-(pyridin-2-yl)-1,3,4-thia-diazole and potassium thio-cyanate with copper(II) chloride dihydrate. The copper cation lies on an inversion centre and displays an elongated octa-hedral coordination geometry. The equatorial positions are occupied by the N atoms of two 2,5-bis-(pyridin-2-yl)-1,3,4-thia-diazole ligands, whereas the axial positions are occupied by the S atoms of two thio-cyanate anions. The thia-diazole and the pyridyl rings linked to the metal are approximately coplanar, with a maximum deviation from the mean plane of 0...
August 1, 2016: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/27487340/a-two-dimensional-mixed-valence-cu-ii-cu-i-coordination-polymer-constructed-from-2-pyridin-3-yl-1h-imidazole-4-5-dicarboxylate
#14
Li Yang Zhang, Li Ping Lu, Si Si Feng
Coordination polymers are a thriving class of functional solid-state materials and there have been noticeable efforts and progress toward designing periodic functional structures with desired geometrical attributes and chemical properties for targeted applications. Self-assembly of metal ions and organic ligands is one of the most efficient and widely utilized methods for the construction of CPs under hydro(solvo)thermal conditions. 2-(Pyridin-3-yl)-1H-imidazole-4,5-dicarboxylate (HPIDC(2-)) has been proven to be an excellent multidentate ligand due to its multiple deprotonation and coordination modes...
August 1, 2016: Acta Crystallographica. Section C, Structural Chemistry
https://www.readbyqxmd.com/read/27341300/x-ray-powder-diffraction-in-conservation-science-towards-routine-crystal-structure-determination-of-corrosion-products-on-heritage-art-objects
#15
Robert E Dinnebier, Andrea Fischer, Gerhard Eggert, Tomče Runčevski, Nanna Wahlberg
The crystal structure determination and refinement process of corrosion products on historic art objects using laboratory high-resolution X-ray powder diffraction (XRPD) is presented in detail via two case studies. The first material under investigation was sodium copper formate hydroxide oxide hydrate, Cu4Na4O(HCOO)8(OH)2∙4H2O (sample 1) which forms on soda glass/copper alloy composite historic objects (e.g., enamels) in museum collections, exposed to formaldehyde and formic acid emitted from wooden storage cabinets, adhesives, etc...
June 8, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27157290/immobilization-of-polyoxometalate-in-the-metal-organic-framework-rht-mof-1-towards-a-highly-effective-heterogeneous-catalyst-and-dye-scavenger
#16
Jing-Wen Sun, Peng-Fei Yan, Guang-Hui An, Jing-Quan Sha, Guang-Ming Li, Guo-Yu Yang
A series of three remarkable complexes [PMo12O40]@[Cu6O(TZI)3(H2O)9]4·OH·31H2O (H3TZI = 5-tetrazolylisophthalic acid; denoted as HLJU-1, HLJU = Heilongjiang University), [SiMo12O40]@[Cu6O(TZI)3(H2O)9]4·32H2O (denoted as HLJU-2), and [PW12O40]@[Cu6O(TZI)3(H2O)6]4·OH·31H2O (denoted as HLJU-3) have been isolated by using simple one-step solvothermal reaction of copper chloride, 5-tetrazolylisophthalic acid (H3TZI), and various Keggin-type polyoxometalates (POMs), respectively. Crystal analysis of HLJU 1-3 reveals that Keggin-type polyoxoanions have been fitted snuggly in the cages of rht-MOF-1 (MOF: metal-organic framework) with large cell volume in a range of 87968-88800 Å(3) and large pore volume of about 68%...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27054292/the-influence-of-different-coordination-environments-on-one-dimensional-cu-ii-coordination-polymers-for-the-photo-degradation-of-organic-dyes
#17
Navid Hussain, Vimal K Bhardwaj
Three new Cu(ii) coordination polymers, namely, {[Cu3(L(1))(NO3)2(DMF)(H2O)]·3(DMF)}n (), [Cu3(L(1))(Cl)2(DMF)2]n () and [Cu3(L(2))(NO3)4(H2O)4]n (), were synthesized from pyridine-2,6-dicarbohydrazide based imine linked tritopic ligands. All the complexes were characterized using elemental analysis, IR, UV-vis spectroscopy and ESI-MS. The solid state structures of complexes were determined using single crystal X-ray crystallography. The complexes contain trinuclear copper units connected through different anions that lead to the formation of one dimensional (ID) chain structures...
May 4, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27045752/copper-chloride-catalysis-do-%C3%AE-4-oxido-copper-clusters-play-a-significant-role
#18
Sabine Becker, Maximilian Dürr, Andreas Miska, Jonathan Becker, Christopher Gawlig, Ulrich Behrens, Ivana Ivanović-Burmazović, Siegfried Schindler
Copper chloride catalysis is a well-established field in organic and inorganic chemistry. However, in most cases a detailed mechanistic understanding of the individual reaction steps and identification of reactive intermediates are still missing. The present study reports the results of spectroscopic and spectrometric measurements that support formation of copper agglomerates during catalytic processes. The composition of CuCl2·2H2O in several coordinating solvents and the influence of basic coreagents such as NaO(t)Bu and K2CO3 on the structure in the solid state as well as in solution were investigated...
April 18, 2016: Inorganic Chemistry
https://www.readbyqxmd.com/read/27045187/a-three-dimensional-mixed-valence-cu-ii-cu-i-coordination-polymer-constructed-from-biphenyl-3-4-5-tricarboxylate-and-1-4-bis-1h-imidazol-1-yl-benzene-ligands
#19
Ya Hui Liu, Li Ping Lu, Miao Li Zhu, Feng Su
Coordination polymers (CPs) built by coordination bonds between metal ions/clusters and multidentate organic ligands exhibit fascinating structural topologies and potential applications as functional solid materials. The title coordination polymer, poly[diaquabis(μ4-biphenyl-3,4',5-tricarboxylato-κ(4)O(3):O(3'):O(4'):O(5))tris[μ2-1,4-bis(1H-imidazol-1-yl)benzene-κ(2)N(3):N(3')]dicopper(II)dicopper(I)], [Cu(II)2Cu(I)2(C15H7O6)2(C12H10N4)3(H2O)2]n, was crystallized from a mixture of biphenyl-3,4',5-tricarboxylic acid (H3bpt), 1,4-bis(1H-imidazol-1-yl)benzene (1,4-bib) and copper(II) chloride in a water-CH3CN mixture under solvothermal reaction conditions...
April 2016: Acta Crystallographica. Section C, Structural Chemistry
https://www.readbyqxmd.com/read/27043506/aroylhydrazone-cu-ii-complexes-in-keto-form-structural-characterization-and-catalytic-activity-towards-cyclohexane-oxidation
#20
Manas Sutradhar, Elisabete C B A Alegria, M Fátima C Guedes da Silva, Luísa M D R S Martins, Armando J L Pombeiro
The reaction of the Schiff base (3,5-di-tert-butyl-2-hydroxybenzylidene)-2-hydroxybenzohydrazide (H3L) with a copper(II) salt of a base of a strong acid, i.e., nitrate, chloride or sulphate, yielded the mononuclear complexes [Cu(H2L)(NO3)(H2O)] (1), [Cu(H2L)Cl]·2MeOH (2) and the binuclear complex [{Cu(H2L)}2(µ-SO4)]·2MeOH (3), respectively, with H2L(-) in the keto form. Compounds 1-3 were characterized by elemental analysis, Infrared (IR) spectroscopy, Electrospray Ionisation Mass Spectrometry (ESI-MS) and single crystal X-ray crystallography...
March 29, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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