A high resolution powder X-ray diffraction study of the products of reaction of dimethyl sulfide with bromine; crystal and molecular structures of (CH3)2SBrn (n = 2, 2.5 or 4)

1999 ◽  
pp. 79-84 ◽  
Author(s):  
Gavin B. M. Vaughan ◽  
Asiloé J. Mora ◽  
Andrew N. Fitch ◽  
Peter N. Gates ◽  
Alan S. Muir
Keyword(s):  
High Resolution ◽  
Diffraction Study ◽  
Dimethyl Sulfide ◽  
Molecular Structures ◽  
X Ray Diffraction ◽  
X Ray ◽  
Crystal And Molecular Structures ◽  
Products Of Reaction

Reactions between ruthenium chlorides and trimethyl phosphite : crystal and molecular structures of RuCI3(NH3)[P(OMe)3]2

1980 ◽  
Vol 33 (1) ◽  
pp. 195 ◽  
Author(s):  
MI Bruce ◽  
DA Kelly ◽  
GM Mclaughlin ◽  
GB Robertson ◽  
IB Tomkins ◽  
...  
Keyword(s):  
Single Crystal ◽  
Diffraction Study ◽  
Molecular Structures ◽  
Trimethyl Phosphite ◽  
X Ray Diffraction ◽  
X Ray ◽  
Crystal And Molecular Structures ◽  
A Minor

The reaction between RuCl3,nH2O and P(OMe)3 affords RuCl2[P(OMe)3]4; one batch of RuCl3,-nH2O also gave amminetrichlorobis(trimethyl phosphite)ruthenium(III), RuCl3(NH3)[P(OMe)3]2, as a minor product. The structure of this complex has been determined from a single-crystal X-ray diffraction study (4598 data, R 0.065, Rw 0.090): the ruthenium is approximately octahedrally coordinated by the three mer chloro, two trans P(OMe)3 and one NH3 ligands. Crystals are monoclinic,P21/n, a 8.725(3), b 18.286(7), c 10.936(4)Ǻ, β 94.57(3)°, Z 4.

X-Ray Diffraction Study of Crystal and Molecular Structures of Azo Compounds of Two β-Diketones

2019 ◽  
Vol 60 (10) ◽  
pp. 1681-1687
Author(s):  
F. N. Bahmanova ◽  
Sh. A. Tahirli ◽  
R. K. Askerov ◽  
S. R. Hajiyeva ◽  
F. M. Chyragov
Keyword(s):  
Diffraction Study ◽  
Molecular Structures ◽  
Azo Compounds ◽  
X Ray Diffraction ◽  
X Ray ◽  
Crystal And Molecular Structures

Lewis-Base Adducts of Group 1B Metal(I) Compounds. XXI The Crystal and Molecular Structures of the Unsolvated Forms of Dibromotris(triphenylphosphine)dicopper(I) and 'step' Tetrabromotetrakis(triphenyl-phosphine)tetracopper(I)

1985 ◽  
Vol 38 (8) ◽  
pp. 1243 ◽  
Author(s):  
JC Dyason ◽  
LM Engelhardt ◽  
C Pakawatchai ◽  
PC Healy ◽  
AH White
Keyword(s):  
Single Crystal ◽  
Crystal Structures ◽  
Molecular Structures ◽  
Lewis Base ◽  
Crystal Data ◽  
X Ray Diffraction ◽  
Triphenyl Phosphine ◽  
X Ray ◽  
Crystal And Molecular Structures

The crystal structures of the title compounds have been determined by single-crystal X-ray diffraction methods at 295 K. Crystal data for (PPh3)2CuBr2Cu(PPh3) (1) show that the crystals are iso-morphous with the previously studied chloro analogue, being monoclinic, P21/c, a 19.390(8), b 9.912(5), c 26.979(9) Ǻ, β 112,33(3)°; R 0.043 for No 3444. Cu( trigonal )- P;Br respectively are 2.191(3); 2.409(2), 2.364(2) Ǻ. Cu(tetrahedral)- P;Br respectively are 2.241(3), 2.249(3); 2.550(2), 2.571(2) Ǻ. Crystals of 'step' [PPh3CuBr]4 (2) are isomorphous with the solvated bromo and unsolvated iodo analogues, being monoclinic, C2/c, a 25.687(10), b 16.084(7), c 17.815(9) Ǻ, β 110.92(3)°; R 0.072 for No 3055. Cu( trigonal )- P;Br respectively are 2.206(5); 2.371(3), 2.427(2) Ǻ. Cu(tetrahedral)- P;Br are 2.207(4); 2.446(2), 2.676(3), 2.515(3) Ǻ.

scholarly journals High-resolution synchrotron x-ray diffraction study of Zr-rich compositions of Pb(ZrxTi1−x)O3 (0.525⩽x⩽0.60): Evidence for the absence of the rhombohedral phase

2007 ◽  
Vol 91 (19) ◽  
pp. 192904 ◽  
Author(s):  
Akhilesh Kumar Singh ◽  
Dhananjai Pandey ◽  
Songhak Yoon ◽  
Sunggi Baik ◽  
Namsoo Shin
Keyword(s):  
High Resolution ◽  
Diffraction Study ◽  
Rhombohedral Phase ◽  
X Ray Diffraction ◽  
X Ray

Kupfer(I)-Komplexe mit ungesättigten Stickstoffliganden, V / Kupfer(I)-Komplexe mit Diazadienen als Chelate und Brücken: Röntgenstrukturenuntersuchungen an (DAD)Cu(μ-Cl)2Cu(DAD), [(DAD)2Cu]⁺ (CuCl2)-, (DAD)CuCl, [μ-(DAD)2Cu5Cl5]n und [μ-(DAD)Cu(OTf)]n (DAD = Diazadien) / Copper(I) Complexes with Unsaturated Nitrogen Ligands, V Copper(I) Complexes with Chelating and Bridging Diazadienes: X-Ray Diffraction Studies of (DAD)Cu(μ-Cl)2Cu(DAD), [(DAD)2Cu]+ (CuCl2)-, (DAD)CuCl, [μ-(DAD)2Cu5Cl5]n and [μ-(DAD)Cu(OTf)]n (DAD = Diazadiene)

1990 ◽  
Vol 45 (10) ◽  
pp. 1369-1382 ◽  
Author(s):  
Heindirk tom Dieck ◽  
Lutz Stamp
Keyword(s):  
Coordination Polymer ◽  
Molecular Complexes ◽  
Molecular Structures ◽  
Coordination Geometry ◽  
Halide Ions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nitrogen Ligands ◽  
Crystal And Molecular Structures ◽  
Irregular Geometries

Diazadienes RN = CR′-CR′ = NR (DAD) form molecular complexes with copper(I) halides of composition (DAD)CuX, the structures of which vary from [(DAD)2Cu]+(CuCl2)⁻ with a non-tetrahedral bis(chelated) cation, over [(DAD)CuCl]2 with asymmetrically bridging chloro ligands to planar three-coordinate (DAD)CuCl. The composition of the isolated complexes depends on the relative concentrations or on the solvent. The “soft” coordination geometry of copper is underlined by the structure of the coordination polymer of composition (DAD)2Cu5Cl5, in which Cu atoms of coordination number 2, 3 and 4 and very irregular geometries are encountered and where the DAD ligands are exclusively bridging. Halide ions and sp2-nitrogen donors are very competitive. Bridging DAD ligands are also encountered in (DAD)Cu-Y with the less nucleophilic anions trifluoromethane-sulphonate or perchlorate. Crystal and molecular structures are established for all these coordination geometries and the causes are discussed for the coordination flexibility of copper(I)

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