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copper chloride crystallization

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https://www.readbyqxmd.com/read/29901047/static-and-dynamic-coordination-behaviours-of-copper-i-ions-in-hexa-2-pyridyl-benzene-ligand-systems
#1
Hyunchul Kwon, Eunsung Lee
Two hexaarylbenzenes having six pyridine substituents (LH and LM) were prepared and six corresponding coordination complexes with copper(i) chloride were synthesized. Monomeric complexes (1, 2a and 2b) and 1D coordination polymers (3, 4 and 5) were synthesized via the judicious concentration control of copper(i) ions and characterized fully by X-ray crystal analysis. The binding modes of the ligands to copper(i) ions in the coordination polymers were dependent on steric effects and solvents to determine the morphology of the coordination polymers...
June 14, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29765723/two-cu-ii-complexes-of-3-4-5-tri-methyl-1-h-pyrazole
#2
Collin J Vincent, Ian D Giles, Jeffrey R Deschamps
The crystal structure of complexes of 3,4,5-tri-methyl-1 H -pyrazole with CuCl2 ·2H2 O and Cu(NO3 )2 ·2.5H2 O are presented, namely di-μ-chlorido-bis[chloridobis(3,4,5-trimethyl-1 H -pyrazole-κ N 2 )copper(II)], [Cu2 Cl4 (C6 H10 N2 )4 ] ( 1 ) and aquatetrakis(3,4,5-trimethyl-1 H -pyrazole-κ N 2 )copper(II) dinitrate, [Cu(C6 H10 N2 )4 (H2 O)](NO3 )2 ( 2 ), and compared to the previously determined structures for 3-methyl-1 H -pyrazole and 3,5-di-methyl-1 H -pyrazole. CuCl2 forms a 2:1 ligand-to-metal chloride-bridged complex with 3,4,5-tri-methyl-1 H -pyrazole, with a square-pyramidal coordination geometry about each copper(II) center...
March 1, 2018: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29608296/electronic-and-structural-effects-of-inner-sphere-coordination-of-chloride-to-a-homoleptic-copper-ii-diimine-complex
#3
Valentina Leandri, Quentin Daniel, Hong Chen, Licheng Sun, James M Gardner, Lars Kloo
The reaction of CuCl2 with 2,9-dimethyl-1,10-phenanthroline (dmp) does not lead to the formation of [Cu(dmp)2 ](Cl)2 but instead to [Cu(dmp)2 Cl]Cl, a 5-coordinated complex, in which one chloride is directly coordinated to the metal center. Attempts at removing the coordinated chloride by changing the counterion by metathesis were unsuccessful and resulted only in the exchange of the noncoordinated chloride, as confirmed from a crystal structure analysis. Complex [Cu(dmp)2 Cl]PF6 exhibits a reversible cyclic voltammogram characterized by a significant peak splitting between the reductive and oxidative waves (0...
April 16, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29503730/a-new-triazine-bearing-a-pyrazolone-group-capable-of-copper-nickel-and-zinc-chelation
#4
Akop Yepremyan, Arshad Mehmood, Samantha Brewer, Madalyn M Barnett, Benjamin G Janesko, Giridhar Akkaraju, Eric E Simanek, Kayla N Green
Interests in inorganic applications of triazines is growing. In this report, metal complexes of copper(II), nickel(II), and zinc(II) and a novel class of chelates comprising a triazine ring substituted with a hydrazine group and pyralozone are evaluated using spectrophotometric methods, single crystal X-ray diffractometry, and electrochemistry. Complexes with copper(II) include a single chelate and two chloride atoms to satisfy a trigonal bipryamidal coordination sphere. The nickel(II) and zinc(II) complexes are comprised of two chelating groups that adopt an octahedral geometry around the metal ion...
2018: RSC Advances
https://www.readbyqxmd.com/read/29405494/ternary-mixed-valence-organotin-copper-selenide-clusters
#5
Niklas Rinn, Lukas Guggolz, Jurek Lange, Sangam Chatterjee, Theresa Block, Rainer Pöttgen, Stefanie Dehnen
Reactions of the organotin selenide chloride clusters [(R1 SnIV )3 Se4 Cl] (A, R1 =CMe2 CH2 C(O)Me) or [(R1 SnIV )4 Se6 ] (B) with [Cu(PPh3 )3-x Clx ] yield cluster compounds with different inorganic, mixed-valence core structures: [Cu4 SnII SnIV 6 Se12 ], [Cu2 SnII 2 SnIV 4 Se8 Cl2 ], [Cu2 SnII SnIV 4 Se8 ], [Cu2 SnII 2 SnIV 2 Se4 Cl4 ], and [Cu2 SnIV 2 Se4 ]. Five of the compounds, namely [(CuPPh3 )2 {(R1 SnIV )2 Se4 }] (1), [(CuPPh3 )2 SnII {(R2 SnIV )2 Se4 }2 ] (2), [(CuPPh3 )2 (SnII Cl)2 {(RSnIV )2 Se4 }2 ] (3) [(CuPPh3 )2 (SnII Cu2 ){(R1 SnIV )2 Se4 }3 ] (4), and [Cu(CuPPh3 )(SnII Cu2 ){(R1 SnIV )2 Se4 }3 ] (5) are structurally closely related...
April 17, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29400329/formaldehyde-aminoguanidine-condensation-and-aminoguanidine-self-condensation-products-syntheses-crystal-structures-and-characterization
#6
Elena A Buvaylo, Vladimir N Kokozay, Nataliia Yu Strutynska, Olga Yu Vassilyeva, Brian W Skelton
Guanidine is the functional group on the side chain of arginine, one of the fundamental building blocks of life. In recent years, a number of compounds based on the aminoguanidine (AG) moiety have been described as presenting high anticancer activities. The product of condensation between two molecules of AG and one molecule of formaldehyde was isolated in the protonated form as the dinitrate salt (systematic name: 2,8-diamino-1,3,4,6,7,9-hexaazanona-1,8-diene-1,9-diium dinitrate), C3 H14 N8 2+ ·2NO3 - , (I)...
February 1, 2018: Acta Crystallographica. Section C, Structural Chemistry
https://www.readbyqxmd.com/read/29250375/aqua-chlorido-2-6-di-methyl-amino-pyrimidin-4-yl-sulfan-yl-pyrimidine-4-6-di-amine-copper-ii-chloride-hydrate
#7
Tristen E Moyaert, Christina Paul, Weibin Chen, Amy A Sarjeant, Louise N Dawe
A copper(II) complex of the non-symmetric bidentate ligand 2-{[6-(di-methyl-amino)-pyrimidin-4-yl]sulfan-yl}pyrimidine-4,6-di-amine ( L 1) is reported. The single-crystal X-ray structure of aqua-[aqua/chlorido-(0.49/0.51)](2-{[6-(di-methyl-amino)-pyrimidin-4-yl]sulfan-yl}pyrimidine-4,6-di-amine)-copper(II) 0.49-chloride 1.51-hydrate, [CuCl1.51 (C10 H13 N7 S)(H2 O)1.49 ]Cl0.49 ·1.51H2 O or [( L 1)Cl1.51 (H2 O)1.49 Cu]0.49Cl·1.51H2 O, exhibits distorted square-pyramidal geometry around the metal centre, with disorder in the axial position, occupied by chloride or water...
October 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29250350/a-copper-ii-paddle-wheel-structure-of-tranexamic-acid-di-chloro-tetra-kis-%C3%AE-4-ammonio-meth-yl-cyclo-hexane-1-carboxyl-ato-o-o-dicopper-ii-dichloride-hexa-hydrate
#8
Muhammad Altaf, Helen Stoeckli-Evans
Tranexamic acid [systematic name: trans -4-(amino-meth-yl)cyclo-hexane-1-carb-oxy-lic acid], is an anti-fibrinolytic amino acid that exists as a zwitterion [ trans -4-(ammonio-meth-yl)cyclo-hexane-1-carboxyl-ate] in the solid state. Its reaction with copper chloride leads to the formation of a compound with a copper(II) paddle-wheel structure that crystallizes as a hexa-hydrate, [Cu2 Cl2 (C8 H15 NO2 )4 ]2+ ·2Cl- ·6H2 O. The asymmetric unit is composed of a copper(II) cation, two zwitterionic tranexamic acid units, a coordinating Cl- anion and a free Cl- anion, together with three water mol-ecules of crystallization...
October 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29168858/ferromagnetic-coupling-in-copper-benzimidazole-chloride-structural-mass-spectrometry-magnetism-and-dft-studies
#9
Xing-Xing Shi, Yuexing Zhang, Qiu-Jie Chen, Zheng Yin, Xue-Li Chen, Zhenxing Wang, Zhong-Wen Ouyang, Mohamedally Kurmoo, Ming-Hua Zeng
Herein, quasi-square planar CuII (Hmbm)Cl2 (CBC, Hmbm = (1-methyl-1H-benzo[d]imidazol-2-yl)methanol) was arranged in a pseudo orthogonal way to form Cl-bridged chains, and further ππ interactions resulted in distorted hexagonal layers. DFT calculations reveal a bond strength order of Cu-Cl > Cu-O/N ≫ CuCl. ESI-MS data reveal several small fragments from CBC, but oligomeric [Cu], [Cu], and [Cu] for non-zero in-source energies; MS data indicates the occurrence of several chemical processes, viz. splitting of the ligand, oligomerization, and redox reaction of alcohol to aldehyde and CuII to CuI ...
December 21, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29152361/a-new-approach-to-alkaloid-like-systems-synthesis-and-crystal-structure-of-1-2-acetyl-11-meth-oxy-5-6-di-hydro-1-3-dioxolo-4-5-g-pyrrolo-2-1-a-isoquinolin-1-yl-propan-2-one
#10
Le Tuan Anh, Alexander A Titov, Reza Samavati, Leonid G Voskressensky, Alexey V Varlamov, Victor N Khrustalev
The title compound, C19 H19 NO5 , (I), is the product of a domino reaction between cotarnine chloride and acetyl-acetylene catalysed by copper(I) iodide. The mol-ecule of (I) comprises a fused tetra-cyclic system containing two terminal five-membered rings (pyrrole and 1,3-dioxole) and two central six-membered rings (di-hydro-pyridine and benzene). The five-membered 1,3-dioxole ring has an envelope conformation and the central six-membered di-hydro-pyridine ring adopts a twist-boat conformation. The acyl substituent is almost coplanar with the pyrrole ring, whereas the meth-oxy substituent is twisted by 27...
November 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29111517/copper-ii-and-gold-iii-mediated-cyclization-of-a-thiourea-to-a-substituted-2-aminobenzothiazole
#11
Zachary W Schroeder, L K Hiscock, Louise Nicole Dawe
Benzothiazole derivatives are a class of privileged molecules due to their biological activity and pharmaceutical applications. One route to these molecules is via intramolecular cyclization of thioureas to form substituted 2-aminobenzothiazoles, but this often requires harsh conditions or employs expensive metal catalysts. Herein, the copper(II)- and gold(III)-mediated cyclizations of thioureas to substituted 2-aminobenzothiazoles are reported. The single-crystal X-ray structures of the thiourea N-(3-methoxyphenyl)-N'-(pyridin-2-yl)thiourea, C13 H13 N3 OS, and the intermediate metal complexes aquabis[5-methoxy-N-(pyridin-2-yl-κN)-1,3-benzothiazol-2-amine-κN3 ]copper(II) dinitrate, [Cu(C13 H11 N3 OS)2 (H2 O)](NO3 )2 , and bis{2-[(5-methoxy-1,3-benzothiazol-2-yl)amino]pyridin-1-ium} dichloridogold(I) chloride monohydrate, (C13 H12 N3 OS)2 [AuCl2 ]Cl·H2 O, are reported...
November 1, 2017: Acta Crystallographica. Section C, Structural Chemistry
https://www.readbyqxmd.com/read/29068427/a-rapid-one-step-process-for-fabrication-of-biomimetic-superhydrophobic-surfaces-by-pulse-electrodeposition
#12
Shuzhen Jiang, Zhongning Guo, Guixian Liu, Glenn Kwabena Gyimah, Xiaoying Li, Hanshan Dong
Inspired by some typical plants such as lotus leaves, superhydrophobic surfaces are commonly prepared by a combination of low surface energy materials and hierarchical micro/nano structures. In this work, superhydrophobic surfaces on copper substrates were prepared by a rapid, facile one-step pulse electrodepositing process, with different duty ratios in an electrolyte containing lanthanum chloride (LaCl₃·6H₂O), myristic acid (CH₃(CH₂)12 COOH), and ethanol. The equivalent electrolytic time was only 10 min...
October 25, 2017: Materials
https://www.readbyqxmd.com/read/28977714/the-intermetalloid-cluster-cation-cubi-8-3
#13
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⋅4 AlCl3 (BMIm=1-n-butyl-3-methylimidazolium) at 180 °C yielded air-sensitive shiny black crystals of (CuBi8 )[AlCl4 ]2 [Al2 Cl7 ] 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 does not form binary intermetallics with bismuth under ambient pressure...
January 2, 2018: 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
#14
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
#15
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...
May 1, 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
#16
Graham Smith, Urs D Wermuth
Structures having the unusual protonated 4-arsonoanilinium species, namely in the hydrochloride salt, C6 H9 AsNO3 + ·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, (C6 H9 AsNO3 )2 [Cu(H2 O)6 ](SO4 )2 ·2H2 O, (II), with copper(II) chloride, i.e. poly[bis(4-arsonoanilinium) [tetra-μ-chlorido-cuprate(II)]], {(C6 H9 AsNO3 )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
#17
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-cu-4-o-4-core-crystal-structure-magnetic-properties-dft-calculations-and-phenoxazinone-synthase-like-activity
#18
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 Cu4 O4 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 μ3 -manner connecting simultaneously three copper centers and forming a Cu4 O4 cubane core...
January 24, 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
#19
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)2 CuCl(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(H2 O)Cl2 }(5), μ-dichloro-bis{6-sec-butyl-2,2'-bipyridinedichlorocopper(II)} {(mono-sec-butyl bipy) ClCu(μ-Cl)2 CuCl(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
#20
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
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