Preparation, X-ray Crystal Structure, and Chemistry of ((Arylsulfonyl)methyl)(phenyl)iodonium Triflates. Stable Alkyliodonium Salts

1997 ◽  
Vol 119 (20) ◽  
pp. 4775-4776 ◽  
Author(s):  
Viktor V. Zhdankin ◽  
Scott A. Erickson ◽  
Kari J. Hanson
Keyword(s):  
Crystal Structure ◽  
X Ray ◽  
Crystal Structure And Chemistry ◽  
Methyl Phenyl

ChemInform Abstract: Preparation, X-Ray Crystal Structure, and Chemistry of Stable Azidoiodinanes - Derivatives of Benziodoxole.

ChemInform ◽  
2010 ◽  
Vol 27 (38) ◽  
pp. no-no
Author(s):  
V. V. ZHDANKIN ◽  
A. P. KRASUTSKY ◽  
C. J. KUEHL ◽  
A. J. SIMONSEN ◽  
J. K. WOODWARD ◽  
...  
Keyword(s):  
Crystal Structure ◽  
X Ray ◽  
Derivatives Of ◽  
Crystal Structure And Chemistry

Crystal structure and chemistry of natural kutinaite from Černý Důl, Krkonoše, Czech Republic

2015 ◽  
Vol 79 (5) ◽  
pp. 1099-1109 ◽  
Author(s):  
Luca Bindi ◽  
Emil Makovicky
Keyword(s):  
Crystal Structure ◽  
Czech Republic ◽  
Metal Contacts ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
Cell Parameters ◽  
Metal Metal ◽  
Crystal Structure And Chemistry

AbstractWe have characterized the crystal structure of natural kutinaite, a rare mineral from the ores of Černý Důl, Czech Republic, by single-crystal X-ray diffraction and chemical analysis. We found that the structure of natural kutinaite is not identical to that of synthetic Cu14Ag6As7, previously reported to be cubic, space group Pm3m. Although topologically similar, the structure of natural kutinaite is indeed tetragonal, space group P4/mmm, with cell parameters: a = 11.789(2), c = 11.766(2) Å, V = 1635.5(4) Å3 and Z = 4. Electron microprobe analyses pointed to the (K,Tl)0.25Cu14Ag6As6.75 stoichiometry (Z = 4), or (K, Tl)Cu56Ag24As27 with Z = 16. The crystal structure of an untwinned crystal has been refined to R1 = 2.61%. It consists of clusters of eight edge-sharing tetrahedra of Cu, which alternate in a 3D chess-board manner with octahedral clusters of six Ag atoms. The latter are surrounded by triangularly coordinated copper in eight faces of a cuboctahedron. The last structure components are large cavities containing partly occupied (K,Tl) sites, coordinated by 18 Ag and As ligands. The structure is full of direct metal-metal contacts although As plays the role of anion, associating especially with copper.

scholarly journals A Novel Ring Enlargement of 2H-Azirine-3-methyl(phenyl)amines via Amidinium-Intermediates: A New Synthetic Approach to 2,3-Dihydro-1,3,3-trimethylindol-2-one

2002 ◽  
Vol 57 (4) ◽  
pp. 444-452 ◽  
Author(s):  
Maged K.G Mekhael ◽  
Richard J. Smith ◽  
Stefan Bienz ◽  
Anthony Linden ◽  
Heinz Heimgartner
Keyword(s):  
Crystal Structure ◽  
Acetic Anhydride ◽  
Sodium Azide ◽  
Boron Trifluoride ◽  
Molecular Structures ◽  
Synthetic Approach ◽  
Successive Treatment ◽  
X Ray ◽  
Ring Enlargement ◽  
Methyl Phenyl

2,2,N-Trimethyl-N-phenyl-2H-azirin-3-amine (1a) was prepared by successive treatment of 2,N-dimethyl-N-phenylpropanamide (18) with phosgene, triethylamine, and sodium azide. Reaction of 1a in THF solution with boron trifluoride gave 2-amino-1,3,3-trimethyl-3H-indolium tetrafluoroborate (19) in high yield.T he latter reacted with acetic anhydride in pyridine to give a mixture of N-(2,3-dihydro-1,3,3-trimethylindol-2-yliden)acetamide (22) and 2,3-dihydro- 1,3,3-trimethylindol-2-one (21).On hydrolysis with aqueous HCl, 22 was converted to 21.T he molecular structures of 19 and 22 were established by X-ray crystal structure determination.

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