102,109 research outputs found
Single-crystal investigation of the neodymium rhodium germanides NdRh2Ge2, Nd2Rh3Ge5 and NdRh0.79Ge0.54
No full textThe crystal structures for three compounds were determined from single-crystal X-ray diffraction: NdRh2Ge2, I4/mmm space group, a=4.153(1) Angstrom, c=10.363(5) Angstrom, V=178.73 Angstrom (3), d=9.202 g/cm(3), mu =39.66 mm(-1), R=0.0460 for 118 reflections (CeGa(2)AI(2) structure type); Nd2Rh3Ge5, C2/m space group, a=11.610(9), b=5.929(4), c=12.133(9) Angstrom, beta =119.7(1)degrees, V=725.43 Angstrom (3), d=8.791 g/cm(3), mu =40.95 mm(-1), R=0.0374 for 600 reflections (Lu2Co3Si5 structure type); NdRh0.79Ge0.54, Pm-3m space group, a=3.995(2) Angstrom, V=63.76 Angstrom (3), d=36.235 g/cm(3), mu =152.95 mm(-1), R=0.0342 for 63 reflections (defect CaTiO3 structure type
6-Chloro-1,2-benzodithiole-3-thione
No full textC7H3ClS3, Mr= 218.7, monoclinic, P2/a, a = 14.427 (3), b = 14.695 (3), c= 3.891 (2) A, fl=90.67 (3) °, V= 824.9 (5) A 3, Z = 4, D x =1.76 gcm -3, 2(Cu Ka) = 1.5418 A, /t = 105.7 cm -1, F(000)=440, room temperature, R=0.049 (wR = 0.052) for 1073 observed reflections [I > 2a(/)]. The benzodithiole skeleton is practically planar and the thione bond is clearly double
Stereochemistry of Rings XVI. Indole Derivatives. 1. 2,3-Dimethyl-5-nitroindole
No full textThe structure was solved by direct methods and refined by full-matrix least squares to a final R = 0.048 for 1519 observed reflections. The molecule as a whole is nearly planar and the methyl groups are both equatorial. A partial pi delocalization is observed
Preparation of a Bis(cyclopentadienyl)acetylene-framed Heterobimetallic Complexes and its Reaction with Dicobalt Octacarbonyl
No full text2,2'-Diphenyl-Δ3,3'-bi-3H-indole-1,1-dioxide: Molecular Interactions and Crystal Structure
No full textSingle-crystal investigation of the compounds NdRu2Si2 and NdRh2(Si,Ge)2
No full textThe crystal structures for two compounds were determined from single-crystal X-rap diffraction: NdRu2Si2, 14/mmm space group, a=4.189(1), c=9.754(8) Angstrom, V=171.16 Angstrom(3), rho=7.811 g/cm(3), mu = 240.7 cm(-1), R = 0.0379 for 114 reflections and NdRh2(Si,Ge)(2), 14/mmm space group, a = 4.182(1), c=9.829(4) Angstrom, V = 171.90 Angstrom(3), rho = 8.708 g/cm(3), mu = 330.1 cm(-1), R = 0.0533 for 152 reflections. Both structures belong to the CeGa2Al2 type of structure
The YbNi2-xSn compound, a new structure type of ternary stannides
No full textThe crystal structure of the new ternary stannide YbNi2-xSn [space group P6(3)/mmc (N 194), z=4] was investigated using single crystal X-ray diffraction data (automatic single crystal diffractometers Philips PW1100 and Bruker SMART CCD, Mo Kalpha radiation). Three crystals with different composition YbNi1.695Sn [a=4.424(4) Angstrom, c=15.232(6) Angstrom, V=258.2(4) Angstrom(3), p=10.066 g cm(-1), mu=57.32 mm(-1)], YbNi1.705Sn [a=4.424(5) Angstrom, c=15.179(7) Angstrom, V=257.3(4) Angstrom(3), rho=10.116 g cm(-3), mu=57.59 mm(-1)] and YbNi1.745Sn [a=4.303(6) Angstrom, c=16.001(9) Angstrom, V=256.7(5) Angstrom(3), rho=10.199 g cm(-3), mu=58.00 mm(-1)] were refined to R=0.0494, wR(2)=0.1330, to R=0.0782, wR(2)=0.1916 and to R=0.0643, wR(2)=0.1460, respectively. The compounds belongs to a new structure type of intermetallic compounds and are formed from two hypothetical structures YbNi1.5Sn (space group P6(3)/mmc, z=4) and YbNi2Sn (space group P6(3)/mmc, z=4) containing segments of the MnCu2Al, ZrBeSi and ZrPt2Al structures
X-ray investigation of the Al-B-N ternary system: isothermal section at 1500° C. Crystal structure of the Al0.185B6CN0.256 compound
No full textThe equilibrium phase diagram has been established using X-ray powder diffraction for the ternary Al-B-N system over the whole concentration region at 1500degreesC. No ternary compounds have been observed. The crystal structure of the Al0.185B6CN0.256 compound (Cmcm space group, Z=8, a=5.685(2) Angstrom, b=8.903(3) degrees, c=9.122(3) degrees, V=461.70 Angstrom(3), p=2.563 g/cm(3), mu=0.17 mm-(1,) R=0.0424 for 407 reflections with F-o>4sigma(F-o)) was determined from single crystal X-ray diffraction (automatic diffractometer BRUKER AXS CCD, Mo Kalpha radiation) and electron microprobe analysis. The structure is related to the Al0.61B6.50, Al0.253B6.37C and Al0.325B6C structures
Regioselective ring opening of a palladium(IV) alkylaromatic metallacycle by benzyl group migration from palladium to the aromatic carbon and X-ray structure of the resulting palladium(II) complex
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