The crystal structures of dehydrated fully Cd2+-exchanged zeolite x and of its carbon monoxide sorption complex

1997 ◽  
pp. 1819-1826 ◽  
Author(s):  
S.B. Jang ◽  
J.H. Kwon ◽  
S.H. Song ◽  
Y. Kim ◽  
K. Seff
Keyword(s):  
Carbon Monoxide ◽  
Crystal Structures ◽  
Zeolite X

Bis(1-phenyl-1-propyne) complexes of tungsten(II): crystal structures of [WI2(CO)(NCR)(η2-MeC2Ph)2] (R = Me, Et, or Ph)

2001 ◽  
Vol 79 (3) ◽  
pp. 263-271
Author(s):  
Paul K Baker ◽  
Michael GB Drew ◽  
Deborah S Evans
Keyword(s):  
Carbon Monoxide ◽  
Solid State ◽  
Crystal Structures ◽  
Octahedral Geometry ◽  
X Ray ◽  
X Ray Crystallography ◽  
Alkyne Complexes ◽  
First Time

Reaction of [WI2(CO)3(NCMe)2] with two equivalents of 1-phenyl-1-propyne (MeC2Ph) in CH2Cl2, and in the absence of light, gave the bis(1-phenyl-1-propyne) complex [WI2(CO)(NCMe)(η2-MeC2Ph)2] (1) in 77% yield. Treatment of equimolar quantities of 1 and NCR (R = Et, i-Pr, t-Bu, Ph) in CH2Cl2 afforded the nitrile-exchanged products, [WI2(CO)(NCR)(η2-MeC2Ph)2] (2-5) (R = Et (2), i-Pr (3), t-Bu (4), Ph (5)). Complexes 1, 2, and 5 were structurally characterized by X-ray crystallography. All three structures have the same pseudo-octahedral geometry, with the equatorial sites being occupied by cis and parallel alkyne groups, which are trans to the cis-iodo groups. The trans carbon monoxide and acetonitrile ligands occupy the axial sites. In structures 1 and 2, the methyl and phenyl substituents of the 1-phenyl-1-propyne ligands are cis to each other, whereas for the bulkier NCPh complex (5), the methyl and phenyl groups are trans to one another. This is the first time that this arrangement has been observed in the solid state in bis(alkyne) complexes of this type.Key words: bis(1-phenyl-1-propyne), carbonyl, nitrile, diiodo, tungsten(II), crystal structures.

Crystal structures of fully dehydrated fully Sr2+-exchanged zeolite X and of its ammonia sorption complex

1999 ◽  
Vol 30 (2-3) ◽  
pp. 233-241 ◽  
Author(s):  
Mi Jung Kim ◽  
Mi Suk Jeong ◽  
Yang Kim ◽  
Karl Seff
Keyword(s):  
Crystal Structures ◽  
Zeolite X

ChemInform Abstract: Crystal Structures of Dehydrated Fully Mn2+-Exchanged Zeolite X and of Its Ethylene Sorption Complex.

ChemInform ◽  
2010 ◽  
Vol 29 (5) ◽  
pp. no-no
Author(s):  
S. B. JANG ◽  
M. S. JEONG ◽  
Y. KIM ◽  
K. SEFF
Keyword(s):  
Crystal Structures ◽  
Zeolite X

ChemInform Abstract: Two Anhydrous Zeolite X Crystal Structures, Pd18Tl56Si100Al92O384 and Pd21Tl50Si100Al92O384 .

ChemInform ◽  
2010 ◽  
Vol 33 (11) ◽  
pp. no-no
Author(s):  
Bo Young Yoon ◽  
Mee Kyung Song ◽  
Seok Hee Lee ◽  
Yang Kim
Keyword(s):  
Crystal Structures ◽  
Zeolite X

Crystal Structures of the Ethylene and Acetylene Sorption Complexes of Fully Ca2+-Exchanged Zeolite X

1997 ◽  
Vol 101 (16) ◽  
pp. 3091-3096 ◽  
Author(s):  
Se Bok Jang ◽  
Mi Suk Jeong ◽  
Yang Kim ◽  
Karl Seff
Keyword(s):  
Crystal Structures ◽  
Zeolite X
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