ChemInform Abstract: The First Organo-Gallium Four-Membered Ring Compound with Arsenic, Halogen Mixed Bridging: Synthesis and Crystal Structure of Cyclic Ph2GaAs(SiMe3)2Ga(Ph)2Cl.

ChemInform ◽  
1989 ◽  
Vol 20 (42) ◽  
Author(s):  
R. L. WELLS ◽  
W. K. HOLLEY ◽  
S. SHAFIEEZAD ◽  
A. T. MCPHAIL ◽  
C. G. PITT
Keyword(s):  
Crystal Structure ◽  
Membered Ring ◽  
Synthesis And Crystal Structure

Synthese und Kristallstruktur von Cl3Ti[N(SiMe2Cl)(SiMe2NH2)] / Synthesis and Crystal Structure of Cl3Ti[N(SiMe2Cl)(SiMe2N H2)]

1996 ◽  
Vol 51 (8) ◽  
pp. 1141-1144 ◽  
Author(s):  
R. Buheitel ◽  
W. Milius ◽  
W. Schnick
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Structure Determination ◽  
Membered Ring ◽  
Single Crystal Structure ◽  
Crystal Structure Determination ◽  
Central Feature ◽  
Synthesis And Crystal Structure

Cl3Ti[N(SiMe2Cl)(SiMe2NH2)] is yielded by reaction of TiCl4 with two molecules ClMe2SiNHSiMe3. A single crystal structure determination (P 21/n, a = 747.12(2), b = 1294.1(3), c = 1496.7(3) pm, β = 90.30(3)°, Z = 4) shows a planar four-membered ring Ti-N-Si-N as the central feature of the monomers formed by a weak coordinative bond of the NH2 group to the Ti atoms. The monomers are connected to give dimers via two Cl bridges linked to the Ti atoms.

scholarly journals Synthesis and crystal structure of 1,3-di-tert-butyl-2-chloro-4,4-diphenyl-1,3,2λ3,4-diazaphosphasiletidine

2019 ◽  
Vol 75 (3) ◽  
pp. 405-409 ◽  
Author(s):  
Dennis Mo ◽  
Walter Frank
Keyword(s):  
Crystal Structure ◽  
Membered Ring ◽  
Mean Deviation ◽  
Monoclinic Space Group ◽  
Asymmetric Unit ◽  
Reduced Pressure ◽  
Synthesis And Crystal Structure ◽  
Compound C ◽  
Crude Product ◽  
Phenyl Rings

The chemical reaction of dilithiumN,N′-di(tbutyl)-Si,Si-diphenylsilanediamide and PCl3yielded an off-white solid. Sublimation of the crude product under reduced pressure at elevated temperature gave colourless prismatic crystals of the title compound, C20H28ClN2PSi, which crystallizes in the non-centrosymmetric monoclinic space groupCc.The asymmetric unit of the crystal structure contains one molecule and it is dominated by the central SiN2P four-membered ring, which is almost planar with a mean deviation of the atoms from the best plane of 0.014 Å. The angles between the plane defined by the silicon atom and the two nitrogen atoms and the best planes of theSi-phenyl groups are 85.1 (2) and 77.4 (2)°, with the tilt of the phenyl rings in the opposite direction. Bothtert-butyl groups suffer from a two-position rotational disorder with site occupancies of 0.752 (6)/0.248 (6) and 0.878 (9)/0.122 (9). The P—Cl bond [2.2078 (17) Å] is remarkably elongated compared to the P—Cl distance in PCl3[2.034 Å; Galy & Enjalbert (1982).J. Solid State Chem.44, 1–23].

Synthese und Kristallstruktur von Dinatrium-di-μ/-oxo-bis[trihydroxo-methylantimonat(V)] / Synthesis and Crystal Structure of Disodium-di-μ-oxo-bis[trihydroxo-methylantimonate(V)]

1991 ◽  
Vol 46 (2) ◽  
pp. 139-142 ◽  
Author(s):  
Markus Wieber ◽  
Udo Simonis ◽  
Dieter Kraft
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Hydrogen Peroxide ◽  
Thermal Decomposition ◽  
Sodium Hydroxide ◽  
Spectroscopic Properties ◽  
Membered Ring ◽  
Dimeric Molecule ◽  
Synthesis And Crystal Structure

The oxidation of dialkoxymethylstibine with hydrogen peroxide in the presence of sodium hydroxide leads to the formation of disodium-di-μ-oxo-bis[trihydroxo-methylantimonate(V)]. The salt can be synthesized also by dissolving methanestibonic acid in an aqueous solution of sodium hydroxide. The crystal structure has been determined; it shows a dimeric molecule containing a four-membered ring with Sb -O -Sb linkages. Thermal decomposition and spectroscopic properties o f the com pound are discussed.

scholarly journals Synthesis and crystal structure of ABW-type SrFe1.40V0.60O4

2020 ◽  
Vol 76 (5) ◽  
pp. 664-667
Author(s):  
Thomas Gstir ◽  
Volker Kahlenberg ◽  
Hannes Krüger ◽  
Simon Penner
Keyword(s):  
Crystal Structure ◽  
Single Crystals ◽  
Three Dimensional ◽  
Charge Compensation ◽  
Membered Ring ◽  
Side Product ◽  
Double Perovskites ◽  
Tetrahedral Framework ◽  
Synthesis And Crystal Structure ◽  
Zeolite Type

Single crystals of SrFe1.40V0.60O4, strontium tetraoxidodi[ferrate(III)/vanadate(III)], have been obtained as a side product in the course of sinter experiments aimed at the synthesis of double perovskites in the system SrO–Fe2O3–V2O5. The crystal structure can be characterized by layers of six-membered rings of TO4-tetrahedra (T: FeIII, VIII) perpendicular to [100]. Stacking of the layers along [100] results in a three-dimensional framework enclosing tunnel-like cavities in which SrII cations are incorporated for charge compensation. The sequence of directedness of up (U) and down (D) pointing vertices of neighboring tetrahedra in a single six-membered ring is UUUDDD. The topology of the tetrahedral framework belongs to the zeolite-type ABW.

The First Organogallium Four-Membered Ring Compound With Arsenic, Halogen Mixed Bridging: Synthesis and Crystal Structure of

1989 ◽  
Vol 41 (1-2) ◽  
pp. 15-19 ◽  
Author(s):  
Richard L. Wells ◽  
William K. Holley ◽  
Soheila Shafieezad ◽  
Andrew T. McPhail ◽  
Colin G. Pitt
Keyword(s):  
Crystal Structure ◽  
Membered Ring ◽  
Synthesis And Crystal Structure

scholarly journals Unexpected synthesis and crystal structure of N-{2-[2-(2-acetylethenyl)phenoxy]ethyl}-N-ethenyl-4-methylbenzenesulfonamide

2020 ◽  
Vol 76 (12) ◽  
pp. 1851-1853
Author(s):  
Ayalew W. Temesgen ◽  
Minh Duc Luong ◽  
Hong Hieu Truong ◽  
Van Tuyen Nguyen ◽  
Thi Tuyet Anh Dang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Title Compound ◽  
Biological Activities ◽  
Alkaline Treatment ◽  
Membered Ring ◽  
Synthesis And Crystal Structure ◽  
Compound C ◽  
Theoretical Predictions ◽  
Acetyl Group

The title compound, C21H23NO4S, obtained by alkaline treatment of 1,5-bis(1-phenoxy)-3-azapentane at moderate heating, is a N-tosylated secondary vinylamine. An intramolecular S=O...H—C hydrogen bond generates a 13-membered ring. The benzalacetone moiety adopts a trans conformation with respect to the C=C double bond, which is slightly longer than usual due to the conjugation with a neighbouring acetyl group. Theoretical predictions of potential biological activities were performed, suggesting that the title compound can inhibit gluconate 2-dehydrogenase (85% probability), as well as to act as a mucomembranous protector (73%).

Synthese und Kristallstruktur siebengliedriger kohlenstoffhaltiger Schwefel-Stickstoffringe / Synthesis and Crystal Structure of Seven-M embered Sulfur Nitrogen Rings Containing Carbon

1987 ◽  
Vol 42 (10) ◽  
pp. 1249-1252 ◽  
Author(s):  
Herbert W. Roesky ◽  
Nasreddine Benmohamed ◽  
Klaus Keller ◽  
Nayla Keweloh ◽  
Mathias Noltemeyer ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Structure Determination ◽  
Ring System ◽  
Membered Ring ◽  
Synthesis And Crystal Structure ◽  
X Ray ◽  
Ring Compounds

Abstract The reaction of ClSCF2CF2SCl and (Me3SiN)2SR2 proceeds with formation of the seven-membered ring compounds 4a, R = CH3, and 4b, R = C2H5. 4a was shown by an X-ray structure determination to contain a non-planar ring system.

Sign in / Sign up

Export Citation Format

Share Document