Synthesis and Crystal Structure of CuC4O4·2 H2O

1986 ◽  
Vol 41 (11) ◽  
pp. 1341-1345 ◽  
Author(s):  
Christian Robl ◽  
Armin Weiss
Keyword(s):  
Crystal Structure ◽  
Thermal Decomposition ◽  
Hydrogen Bonds ◽  
Coordination Polyhedra ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
Oxygen Atoms

Abstract The monoclinic compound CuC4O4·2 H2O (space group P 21/c) was prepared from aqueous acetate buffered solution. The structure was solved from a twinned crystal. Chains consisting of squarate dianions and Cu2+ , which is coordinated octahedrally in a strongly distorted manner, are the main feature. Only two squarate oxygen atoms contribute considerably to the coordination of Cu2+. Neighbouring chains share common oxygen atoms (H2O . Osquarate) of the coordination polyhedra. Furthermore the chains are very probably interlinked by strong hydrogen bonds. Thermal decomposition of CuC4O4·2 H2O leads to CuO.

The crystal structure of ferrinatrite, Na3(H2O)3[Fe(SO4)3] and its relationship to Maus's salt, (H3O)2K2{K0.5(H2O)0.5}6[Fe3O(H2O)3(SO46](OH)2

1977 ◽  
Vol 41 (319) ◽  
pp. 375-383 ◽  
Author(s):  
F. Scordari
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Least Squares ◽  
Three Dimensional ◽  
Iron Ions ◽  
Space Group ◽  
R Value ◽  
Oxygen Atoms

SummaryFerrinatrite crystallizes in space group P, with a = 15·566(5), c = 8·69(1) Å, and Z = 6. The crystal structure was solved by three-dimensional Patterson and Fourier syntheses, and refined by least squares employing 2378 independent reflexions to a final R value of 0·068. The iron ions occupy special positions and are surrounded octahedrally by oxygen atoms. Fe3+O6 octahedra and SO4, tetrahedra are linked together to form infinite chains of Fe-O-S linkages in the [0001] direction. These chains are linked to each other by [NaO5(H2O)2] polyhedra and probably by hydrogen bonds. The topology of the arrangement is the same as that of the hypothetical P312 structure proposed by Moore and Araki (1974).

Spezielle Alkylammoniumhexachlorometallate, III [1] Synthese und Kristallstruktur von Tris(guanidinium)- hexachlororhodat(III)-monohydrat, [C(NH2)3]3 [RhCl6] · H2O / Alkylammonium Hexachlorometallates, III [1] Synthesis, and Crystal Structure of Tris(guanidinium) Hexachlororhodate(III) Monohydrate, [C(NH2)3]3[RhCl6] · H2O

1996 ◽  
Vol 51 (10) ◽  
pp. 1464-1468 ◽  
Author(s):  
Walter Frank ◽  
Guido J. Reiß
Keyword(s):  
Crystal Structure ◽  
Hydrochloric Acid ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Acid Solution ◽  
Hydrochloric Acid Solution ◽  
Guanidine Hydrochloride ◽  
Triclinic Space Group ◽  
Synthesis And Crystal Structure ◽  
Space Group

Tris(guanidinium) hexachlororhodate(III) monohydrate, [C(NH2)3]3[RhCl6] · H2O (1 ) has been obtained by the reaction of rhodium(III) chloride with guanidine hydrochloride in hydrochloric acid solution. 1 crystallizes in the triclinic space group P1̅ (a = 7.6013(9) Å, b = 8.6912(10) Å, c = 15.956(2) Å, α = 93.177(10)°, β = 101.691(10)°, γ = 113.995(9)°, V = 931.8(2), Z = 2). Two crystallographically independent hexachlororhodate ions, three crystallographically independent guanidinium ions and one water molecule are linked by a complex framework of hydrogen bonds.

Tetraammine Tetrafluorido Cerium(IV) Ammonia (1/1), [CeF4(NH3)4] · NH3

2011 ◽  
Vol 66 (8) ◽  
pp. 868-870 ◽  
Author(s):  
Florian Kraus ◽  
Sebastian A. Baer
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Single Crystals ◽  
Synthesis And Crystal Structure ◽  
Ammine Complex ◽  
Space Group ◽  
Cerium Fluoride

The synthesis and crystal structure of the first ammine complex of a cerium fluoride, tetraammine tetrafluorido cerium(IV) ammonia (1/1), [CeF4(NH3)4] ・NH3, are presented. The compound crystallizes in the form of colorless, block-shaped single crystals in the tetragonal space group P4/ncc with a = 9.03215(9), c = 10.96404(17) Å , V = 894.443(19) Å3, and Z = 4. The compound contains discrete [CeF4(NH3)4] molecules interconnected by N-H···F hydrogen bonds.

The crystal structure of N-[[6-methoxy-5-(trifluoromethyl)thio-1-naphthalenyl]thioxomethyl]-N-methylglycine, C16H14F3NO3S2

1983 ◽  
Vol 61 (9) ◽  
pp. 2137-2140 ◽  
Author(s):  
Kottayil I. Varughese ◽  
Maria Przybylska ◽  
Kazimir Sestanj ◽  
Francesco Bellini ◽  
Leslie G. Humber
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Least Squares ◽  
Attractive Interaction ◽  
Monoclinic Space Group ◽  
Intermolecular Hydrogen Bonds ◽  
Space Group ◽  
Block Diagonal ◽  
Oxygen Atoms

The crystals of C16H14F3NO3S2 belong to the monoclinic space group P21/c with a = 11.577(1), b = 12.404(1), c = 12.366(1) Å, β = 90.01(1)°, and Z = 4. The structure was solved by MULTAN 78. The parameters were refined by block-diagonal least-squares to a final R of 0.047 for 2679 observed reflections. Of particular interest is an intramolecular attractive interaction between the sulfur and oxygen atoms with an [Formula: see text] distance of 2.879(2) Å, in which oxygen appears to act as an electrophile. Intermolecular hydrogen bonds between the hydroxyl and keto groups join the molecules related through a centre of symmetry into dimers.

scholarly journals Synthesis and crystal structure of NaCuIn(PO4)2

2020 ◽  
Vol 76 (3) ◽  
pp. 366-369
Author(s):  
Elhassan Benhsina ◽  
Jamal Khmiyas ◽  
Said Ouaatta ◽  
Abderrazzak Assani ◽  
Mohamed Saadi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Single Crystals ◽  
Three Dimensional ◽  
Atmospheric Conditions ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
Sodium Cations ◽  
Oxygen Atoms

Single crystals of sodium copper(II) indium bis[phosphate(V)], NaCuIn(PO4)2, were grown from the melt under atmospheric conditions. The title phosphate crystallizes in the space group P21/n and is isotypic with KCuFe(PO4)2. In the crystal, two [CuO5] trigonal bipyramids share an edge to form a dimer [Cu2O8] that is connected to two PO4 tetrahedra. The obtained [Cu2P2O12] units are interconnected through vertices to form sheets that are sandwiched between undulating layers resulting from the junction of PO4 tetrahedra and [InO6] octahedra. The two types of layers are alternately stacked along [101] and are joined into a three-dimensional framework through vertex- and edge-sharing, leaving channels parallel to the stacking direction. The channels host the sodium cations that are surrounded by four oxygen atoms in form of a distorted disphenoid.

The crystal structure of vlodavetsite, AlCa2(SO4)2F2Cl·4H2O

1995 ◽  
Vol 59 (394) ◽  
pp. 159-162 ◽  
Author(s):  
G. L. Starova ◽  
S. K. Filatov ◽  
G. L. Matusevich ◽  
V. S. Fundamensky
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Coordination Polyhedron ◽  
Specific Interaction ◽  
Distorted Octahedron ◽  
Water Molecules ◽  
Space Group ◽  
Oxygen Atoms

AbsractThe crystal structure of vlodavetsite, AlCa2(SO4)2F2Cl·4H2O, has been determined, space group I4/m, a = 6.870(1), c = 13.342(2) Å, Z = 2, Dx = 2.35 g/cm3. The polyhedron cation chains are parallel to [001] and consist of couples of distorted Ca octahedra alternating with one distorted Al octahedron rotated through 24° with respect to the former. The chains are linked by SO4-tetrahedra so that all of the four tetrahedron oxygen atoms take part in coordination of Ca atoms to form a distorted octahedron with Cl and F atoms. The Al coordination polyhedron consists of two F atoms and four oxygen atoms belonging to water molecules. There is a specific interaction via hydrogen bonds between oxygen atoms of SO4-tetrahedra and water molecules.

Synthese und Kristallstruktur von Europium(III)-diacetatotriaquo-chlorid, [Eu(CH3COO)2(H2O)3]Cl / Synthesis and Crystal Structure of Europium(III)-diacetatotriaquo-chloride, [Eu(CH3COO)2(H2O)3]Cl

1989 ◽  
Vol 44 (9) ◽  
pp. 1007-1010 ◽  
Author(s):  
Thomas Schleid ◽  
Gerd Meyer
Keyword(s):  
Crystal Structure ◽  
Single Crystals ◽  
Chloride Ions ◽  
Water Molecules ◽  
Monoclinic System ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
Oxygen Atoms

Colourless single crystals of [Eu(CH3COO)2(H2O)3]Cl are obtained at about 5°C from a solution of EuCl3 · 6 H2O in a mixture of acetone, tetrahydrofurane and acetanhydride (1:1:2) to which a small amount of water had been added. [Eu(CH3COO)2(H2O)3]Cl crystallizes in the monoclinic system, space group P21/n (No. 14), a = 786.19(5), b = 791.86(5), c = 1768.81(13) pm; β = 98.235(6)°, R = 0.025, Rw = 0.021, Z = 4. Eu3+ is in nine-coordinate surrounding of O2-, three of which belong to water molecules and six to acetate anions (two bidentate and two monodentate). Cationic chains of the composition [Eu(CH3COO)2(H2O)3]+ are formed through further connection via acetate-oxygen atoms. These chains are stacked hexagonally parallel [100] and held together by “lonesome” Cl- anions. The chloride ions are surrounded by 4+1 aquo ligands.

Synthesis and Crystal Structure of M([12]crown-4)2O3 · 1.5 NH3 with M = K, Rb

2009 ◽  
Vol 64 (11-12) ◽  
pp. 1325-1328 ◽  
Author(s):  
Hanne Nuss ◽  
Martin Jansen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Alkali Metal ◽  
Liquid Ammonia ◽  
Unit Cell ◽  
Temperature Sensitive ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
M 12 ◽  
K 12

The two new ozonide compounds K([12]crown-4)2O3 ・ 1.5 NH3 (1) and Rb([12]crown-4)2O3 ・ 1.5 NH3 (2) were synthesized from the binary alkali metal ozonides and [12]crown-4 in liquid ammonia. The air- and temperature-sensitive red, needle-shaped compounds crystallize isostructurally in the non-centrosymmetric space group Fdd2 (no. 43) with 16 formula units per unit cell. The lattice parameters are a = 26.917(8), b = 43.25(1), c = 7.823(2) Å, V = 9108(5) Å3; and a = 26.730(6), b = 44.70(1), c = 7.739(2) Å, V = 9245(4) Å3 for 1 and 2, respectively. The structure comprises rod-like [([M([12]crown-4)2(NH3)]O3)2(NH3)] supramolecular units, forming a fishbone pattern parallel to (001). The ozonide anions are separated from the metal cations and interact only weakly with two ammonia molecules via N-H・ ・ ・O hydrogen bonds

Synthesis and crystal structure of 2-isocyano-4-methylphenyl diphenylacetate: a rare case of an easily accessible odourless isocyanide

2015 ◽  
Vol 71 (2) ◽  
pp. 155-158 ◽  
Author(s):  
Dina Boyarskaya ◽  
Margarita Avdontceva ◽  
Tatiana Chulkova
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Bond Length ◽  
Triple Bond ◽  
Rare Case ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
One Dimensional ◽  
Acidic Hydrogen

Acidic hydrogen containing 2-isocyano-4-methylphenyl diphenylacetate, C22H17NO2, (I), was synthesized by the base-promoted reaction between 5-methylbenzoxazole and diphenylacetyl chloride. Achiral (I) crystallizes in the chiralP212121space group. The C[triple-bond]N bond length is 1.164 (2) Å and the angle between the OCO and 2-isocyano-4-methylphenyl planes is 69.10 (16)°. Molecules are linkedviaC=O...Hphenyland bifurcated N[triple-bond]C...Hphenyl/N[triple-bond]C...Hmethinehydrogen bonds, forming one-dimensional arrays.

Revision of the crystal structure of ulrichite, CaCu2+(UO2)(PO4)2·4H2O

2001 ◽  
Vol 65 (6) ◽  
pp. 717-724 ◽  
Author(s):  
U. Kolitsch ◽  
G. Giester
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Diffraction Data ◽  
X Ray Diffraction ◽  
Coordination Polyhedra ◽  
Space Group ◽  
X Ray ◽  
Bond Angles ◽  
Area Detector

AbstractThe crystal structure of ulrichite, CaCu2+(UO2)(PO4)2·4H2O (space group P21/c, a = 12.784(3), b = 6.996(1), c = 13.007(3)Å, β = 91.92(1)°, V = 1162.7(4)Å3, Z = 4) was redetermined using X-ray diffraction data measured from a twinned crystal with Mo-Kα radiation and a CCD area detector (2510 unique reflections with Fo > 4σ(Fo), R1 = 8.8%). Ulrichite crystallizes in space group P21/c rather than C2/m reported previously. The newly determined atomic positions give reasonable coordination polyhedra. One unique Ca atom is irregularly coordinated by eight O atoms (<Ca–O> = 2.46 Å). One unique U atom shows a {2+5} coordination with characteristic bond angles and lengths (1.806(11)Å, 1.842(12)Å and five bonds between 2.252(15) and 2.441(11)Å). Furthermore, the structure contains groups in which strongly elongated CuO6 ‘octahedra’ (also describable as CuO4 squares) are corner-linked to two PO4 tetrahedra via two opposite, equatorial O atoms. Edge- and corner-sharing UO7, CaO8 and PO4 polyhedra form heteropolyhedral sheets parallel to (001) that are linked to adjacent sheets via the CuO6 ‘octahedra’ and hydrogen bonds.

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