scholarly journals Crystal structure determination of three polycyclic compounds and comparative Rietveld refinement between MS and GSAS programs

2013 ◽  
Vol 58 (20) ◽  
pp. 2430-2434 ◽  
Author(s):  
XiaoQing Wu ◽  
PeiXiao Tang ◽  
QingQing Pan ◽  
Qiang Cheng ◽  
Hui Li
Keyword(s):  
Crystal Structure ◽  
Rietveld Refinement ◽  
Structure Determination ◽  
Crystal Structure Determination ◽  
Polycyclic Compounds

scholarly journals Synthesis and X-Ray Crystal Structure Determination of Thiotrithiazyl Iododichloride, S4N3ICl2

2002 ◽  
Vol 57 (12) ◽  
pp. 1387-1390 ◽  
Author(s):  
Stephan H. Irsen ◽  
Richard Dronskowski
Keyword(s):  
Crystal Structure ◽  
Rietveld Refinement ◽  
Structure Determination ◽  
Crystal Structure Determination ◽  
Crystal Chemical ◽  
Monoclinic System ◽  
X Ray

Thiotrithiazyl iododichloride, S4N3ICl2, has been synthesized from molecular S4N4 and liquid ICl and structurally characterized by an X-ray Rietveld refinement. S4N3ICl2 crystallizes in the monoclinic system (P21/c, a = 611.548(7), b = 877.336(8), c = 1770.12(2) pm, β = 92.3357(7)°, Z = 4), follows the crystal-chemical motif (S4N3+)(ClICl−), and is thus isotypic with (S4N3+ )(Br3− ). The crystal structure contains a planar S4N3+ ring and a linear ClICl− unit.

Vom Fluorsilan zum Siloxan — 1,3-Silylgruppenwanderung am Si3CSiO-Gerüst/ From a Fluorosilane to a Siloxane — 1,3-Migration of Silyl Groups in the Si3CSiO System

1985 ◽  
Vol 40 (8) ◽  
pp. 1023-1028 ◽  
Author(s):  
Uwe Klingebiel ◽  
Sabine Pohlmann ◽  
Lutz Skoda ◽  
Cornelia Lensch ◽  
George M. Sheldrick
Keyword(s):  
Crystal Structure ◽  
Structure Determination ◽  
Crystal Structure Determination ◽  
Silyl Groups ◽  
Trimethylsilyl Groups

AbstractThe nature of the products which are formed in the reaction of tris(trimethylsilyl)Methylfluorosilanes (Me3Si)3C -SiF2R with KOH depends on the bulkiness of the substituents R. The condensed siloxane is obtained for R = F . The crystal structure determination of this siloxane (Me3Si)3C -SiF2-O -SiF2-C (SiMe3)3 shows that the Si -O - Si unit is linear. A fluorosilanol as well as a siloxane could be isolated for R = Me. 1,3-Migration of one or two trimethylsilyl groups from the carbon to the oxygen takes place for R = phenyl, rm-butyl or silylamine, with formation of siloxanes which are isomeres o f the expected silanols.

Crystal Structure Determination of Li2Ca2Si5O13

1995 ◽  
Vol 114 (2) ◽  
pp. 512-515 ◽  
Author(s):  
M.E. Villafuerte-Castrejón ◽  
A. Dago ◽  
U. Caldiño ◽  
R. Pomes
Keyword(s):  
Crystal Structure ◽  
Structure Determination ◽  
Crystal Structure Determination
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