scholarly journals [Cu(CN)en2]I – Copper Amine Propellers

2006 ◽  
Vol 61 (7) ◽  
pp. 775-778 ◽  
Author(s):  
Michael F. Bräu ◽  
Arno Pfitzner
Keyword(s):  
Crystal Structure ◽  
Direct Contact ◽  
Potassium Cyanide ◽  
Copper Iodide ◽  
Light Blue ◽  
Space Group ◽  
Oriented Parallel ◽  
Iodine Anion ◽  
Copper Amine

Light blue [Cu(CN)en2]I was prepared by reaction of copper iodide with ethylenediamine (en) and potassium cyanide in acetonitrile in air. It crystallizes in the space group C2 (No. 5) with a = 11.082(6), b = 7.155(2), c = 9.017(3) Å , β = 127.00(3)°, and Z = 2. The structure was refined from 1069 unique reflections and 90 parameters. The refinement converged to R1=0.018 and wR2=0.041 (all reflections). Copper has a trigonal bi-pyramidal environment formed by two en molecules and one CN− anion. The iodine anion shows no direct contact to the Cu2+ center. The propeller shaped complexes [Cu(CN)en2]+ are all oriented parallel in the crystal structure. [Cu(CN)en2]+ cations and I− anions form a zincblende related arrangement.

(CuI)2P14: ein neues Phosphorpolymer in einer Kupferhalogenid-Matrix /(CuI)2P14: a Novel Phosphorus Polymer in a Copper Halide Matrix

1997 ◽  
Vol 52 (2) ◽  
pp. 199-202 ◽  
Author(s):  
Amo Pfitzner ◽  
Eva Freudenthaler
Keyword(s):  
Crystal Structure ◽  
Copper Iodide ◽  
Copper Halide ◽  
Space Group

Abstract (CuI)2P14 is a new adduct of copper iodide to a neutral phosphorus polymer. It is obtained by reaction of Cul and Pred at 400 °C. The compound crystallizes monoclinically, space group P21/c (No. 14), a = 9.919(2), b = 9.718(2), c = 16.478(3) Å, β = 105.71(1)°, V = 1529.0(7) Å3, with Z = 4. The crystal structure was refined to R1 = 0.029 for 2680 reflections and 173 parameters. It contains a new polymeric phosphorus allotrope with the translational unit P14±0 consisting of experimentally unknown [P12] groups which are linked by [P2] fragments. The phosphorus rods consist of five-and six-membered rings, and are coordinated only by copper atoms.

scholarly journals Poly[(μ5-cis-cyclohex-4-ene-1,2-dicarboxylato)(μ3-cis-cyclohex-4-ene-1,2-dicarboxylato)dicadmium(II)]

IUCrData ◽  
2018 ◽  
Vol 3 (7) ◽  
Author(s):  
Andrew R. LaDuca ◽  
Robert L. LaDuca
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Title Compound ◽  
Crystal Packing ◽  
Three Dimensional ◽  
Polymer Layer ◽  
Binding Modes ◽  
Space Group ◽  
Oriented Parallel

The title compound, [Cd2(C8H8O4)2] n , crystallizes in the centrosymmetric monoclinic P21/n space group. Via cis-cyclohex-4-ene-1,2-dicarboxylate ligands in two different binding modes, square pyramidally and pentagonal bipyramidally coordinated Cd atoms are connected into coordination polymer layer motifs oriented parallel to the ab plane. These layered motifs are aggregated into the three-dimensional supramolecular crystal structure of the title compound by means of crystal packing forces.

scholarly journals Untersuchungen an Polypseudohalogeniden, V[1] Darstellung und Kristallstruktur des Kaliumdicyanoiodats(I), K[I(CN)2] / Studies on the Polypseudohalides, V [1] Preparation and Crystal Structure of K[I(CN)2]

1988 ◽  
Vol 43 (2) ◽  
pp. 149-152 ◽  
Author(s):  
Karl-Friedrich Tebbe ◽  
Norbert Krauß
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Potassium Cyanide ◽  
Distorted Octahedron ◽  
Monoclinic Space Group ◽  
Formula Unit ◽  
Compound K ◽  
Space Group

The new compound K[I(CN)2] can be prepared by addition of one formula unit of iodine to a concentrated aqueous solution of two mole equivalents of potassium cyanide. It crystallizes in the monoclinic space group C2/m with a = 736.4, b = 451.4, c = 908.0 pm, β = 92.56° and Z = 2. The crystal structure has been refined to Rf = 0.020 for 301 observed reflections.The structure may be described as a layer-like package of cations K+ and trihalide-analogous anions [I(CN)2]-. The anions are strictly linear at the I atoms (symmetry 2/m) and nearly linear at the C atoms with φ (I-C-N) = 178.6° and d(I-C) = 229.8, d(C-N) = 112.9 pm. The cation is surrounded by a slightly distorted octahedron of nitrogen atoms with d(K···N) = 284.8,292.6 pm

A spatially separated [KBr6]5− anion in the cyanido-bridged uranium(IV) compound [U2(CN)3(NH3)14]5+[KBr6]5−·NH3

2020 ◽  
Vol 75 (1-2) ◽  
pp. 111-116
Author(s):  
H. Lars Deubner ◽  
Florian Kraus
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Room Temperature ◽  
Liquid Ammonia ◽  
Layer Structure ◽  
Potassium Cyanide ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray

AbstractThe reaction of uranium tetrabromide with potassium cyanide in anhydrous liquid ammonia at room temperature leads to the formation of brown crystals of [U2(CN)3(NH3)14]5+ [KBr6]5− · NH3. We determined the crystal structure of the compound by single crystal X-ray diffraction. To the best of our knowledge it contains the unprecedented spatially separated [KBr6]5− anion and presents the first uranium(IV) cyanide compound which forms a layer structure. The compound crystallizes in the trigonal space group P3̅m1 (No. 164) with a = 10.3246(13), c = 8.4255(17) Å, V = 777.8(3) Å3, Z = 1 at T = 100 K and is well described with the Niggli formula $\mathop {} \limits_{\infty}^{2}{\left[ {{\rm{U}}{{({\rm{CN}})}_{{3 \over 2}}}{{({\rm{N}}{{\rm{H}}_3})}_{{7 \over 1}}}} \right]_2}\left[ {{\rm{KB}}{{\rm{r}}_{{6 \over 1}}}} \right].$

Crystal structure of an inclusion complex between chiral monoaza-15-crown-5 and S(–)-1-phenyl-ethyl ammonium percholorate

2003 ◽  
Vol 218 (5) ◽  
Author(s):  
Süheyla Özbey ◽  
F. B. Kaynak ◽  
M. Toğrul ◽  
N. Demirel ◽  
H. Hoşgören
Keyword(s):  
Crystal Structure ◽  
Inclusion Complex ◽  
Single Crystal ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
New Type

AbstractA new type of inclusion complex, S(–)-1 phenyl ethyl ammonium percholorate complex of R-(–)-2-ethyl - N - benzyl - 4, 7, 10, 13 - tetraoxa -1- azacyclopentadecane, has been prepared and studied by NMR, IR and single crystal X-ray diffraction techniques. The compound crystallizes in space group

scholarly journals Molekül- und Kristallstruktur von 1.1-Dimethylsilylentitanocendichlorid, (CH3)2Si(C5H4)2TiCl2 / Molecular and Crystal Structure of l,r-Dimethylsilylene Titanocene Dichloride, (CH3)2Si(C5H4)2TiCl2

1981 ◽  
Vol 36 (10) ◽  
pp. 1208-1210 ◽  
Author(s):  
Hartmut Köpf ◽  
Joachim Pickardt
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Structure Determination ◽  
Titanocene Dichloride ◽  
Molecular And Crystal Structure ◽  
Monoclinic Space Group ◽  
Crystal Data ◽  
Space Group ◽  
X Ray ◽  
Structural Dimensions

Abstract The molecular structure of the bridged [1]-titanocenophane 1,1'-dimethylsilylene titanocene dichloride, (CH3)2Si(C5H4)2TiCl2, has been investigated by an X-ray structure determination. Crystal data: monoclinic, space group C2/c, Z = 4, a = 1332.9(3), 6 = 988.7(3), c = 1068.9(3) pm, β = 113.43(2)°. The results are compared with the structural dimensions of similar compounds: 1,1'-methylene titanocene dichloride, CH2(C5H4)TiCl2, with the unbridged titanocene dichloride, (C5H5)2TiCl2 and the ethylene-bridged compound (CH2)2(C5H4)2TiCl2

Synthesis, Crystal Structure And Spectroscopic Studies Of A Mixed Ligand Copper (Ii) Complex: Trans-Bis(Succinimidato)-Bis(Benzylamino)Cu(Ii)

2006 ◽  
Vol 61 (8) ◽  
pp. 979-982 ◽  
Author(s):  
Murat Taş ◽  
Hanife Saraçoğlu ◽  
Hümeyra Bati ◽  
Nezihe Çalışkan ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Spectroscopic Studies ◽  
Mixed Ligand ◽  
Interplanar Angle ◽  
Space Group ◽  
Square Planar

The molecules of the title compound, [Cu(C11H13N2O2)2], lie across centres of inversion in space group P21/c and are linked by intermolecular N-H···O and C-H···O hydrogen bonds. The central Cu atom has a slightly distorted square-planar coordination comprised of four N atoms. Cu-N bond distances are 1.975(2) and 2.020(2) Å . The interplanar angle between the phenyl and succinimidato ring is 87.34(10)°

Crystal structure determination of the conformation of two bicyclo[3.3.1]nonan-ones

1985 ◽  
Vol 63 (6) ◽  
pp. 1166-1169 ◽  
Author(s):  
John F. Richardson ◽  
Ted S. Sorensen
Keyword(s):  
Crystal Structure ◽  
Direct Methods ◽  
Chair Conformation ◽  
Molecular Structures ◽  
Boat Conformation ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
Final Agreement

The molecular structures of exo-7-methylbicyclo[3.3.1]nonan-3-one, 3, and the endo-7-methyl isomer, 4, have been determined using X-ray-diffraction techniques. Compound 3 crystallizes in the space group [Formula: see text] with a = 15.115(1), c = 7.677(2) Å, and Z = 8 while 4 crystallizes in the space group P21 with a = 6.446(1), b = 7.831(1), c = 8.414(2) Å, β = 94.42(2)°, and Z = 2. The structures were solved by direct methods and refined to final agreement factors of R = 0.041 and R = 0.034 for 3 and 4 respectively. Compound 3 exists in a chair–chair conformation and there is no significant flattening of the chair rings. However, in 4, the non-ketone ring is forced into a boat conformation. These results are significant in interpreting what conformations may be present in the related sp2-hybridized carbocations.

scholarly journals Bis(dicyanamido-κN)tetrakis(pyridine-κN)nickel(II)

2012 ◽  
Vol 68 (6) ◽  
pp. m745-m745
Author(s):  
Susanne Wöhlert ◽  
Mario Wriedt ◽  
Inke Jess ◽  
Christian Näther
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Space Group ◽  
Pyridine Ligands ◽  
Anionic Ligands

In the crystal structure of the title compound, [Ni(C2N3)2(C5H5N)4], the NiII cations are coordinated by four pyridine ligands and two dicyanamide anions into discrete complexes. The shortest Ni...Ni separation is 8.1068 (10) Å. The structure is pseudo-centrosymmetric and can also be refined in the space group C2/c in which both anionic ligands are strongly disordered and the refinement leads to significantly poorer reliability factors.

2,4-Diamino-6-phenyl-1,3,5-triazin-1-ium nitrate: intriguing crystal structure with high Z′/Z′′ and hydrogen bond numbers and Hirshfeld surface analysis of intermolecular interactions

CrystEngComm ◽  
2021 ◽  
Author(s):  
Nicoleta Caimac ◽  
Elena Melnic ◽  
Diana Chisca ◽  
Marina S. Fonari
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Surface Analysis ◽  
Intermolecular Interactions ◽  
Title Compound ◽  
Ionic Species ◽  
Hirshfeld Surface ◽  
Hirshfeld Surface Analysis ◽  
Asymmetric Unit ◽  
Space Group

The title compound crystallises in the triclinic centrosymmetric space group P1̄ with an intriguing high number of crystallographically unique binary salt-like adducts (Z′ = 8) and a total number of ionic species (Z′′ = 16) in the asymmetric unit.

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