Ba6Si6N10O2(CN2) - A Nitridosilicate with a NPO-Zeolite Structure Type Containing Carbodiimide Ions

2009 ◽  
Vol 2009 (18) ◽  
pp. 2678-2683 ◽  
Author(s):  
Sandro Pagano ◽  
Oliver Oeckler ◽  
Thorsten Schröder ◽  
Wolfgang Schnick
Keyword(s):  
Structure Type ◽  
Zeolite Structure

ChemInform Abstract: Ba6Si6N10O2(CN2) - A Nitridosilicate with a NPO-Zeolite Structure Type Containing Carbodiimide Ions.

ChemInform ◽  
2009 ◽  
Vol 40 (35) ◽  
Author(s):  
Sandro Pagano ◽  
Oliver Oeckler ◽  
Thorsten Schroeder ◽  
Wolfgang Schnick
Keyword(s):  
Structure Type ◽  
Zeolite Structure

Ba3P5N10Br:Eu2+: A Natural-White-Light Single Emitter with a Zeolite Structure Type

2015 ◽  
Vol 127 (8) ◽  
pp. 2413-2417 ◽  
Author(s):  
Alexey Marchuk ◽  
Wolfgang Schnick
Keyword(s):  
White Light ◽  
Structure Type ◽  
Zeolite Structure ◽  
Single Emitter

scholarly journals The Si–Ge substitutional series in the chiral STW zeolite structure type

2018 ◽  
Vol 6 (31) ◽  
pp. 15110-15122 ◽  
Author(s):  
Reus T. Rigo ◽  
Salvador R. G. Balestra ◽  
Said Hamad ◽  
Rocio Bueno-Perez ◽  
A. Rabdel Ruiz-Salvador ◽  
...  
Keyword(s):  
Structure Type ◽  
Zeolite Structure

Ge substitution for Si in zeolites containing double-four-membered rings is far more complex than thought.

Bellbergite?a new mineral with the zeolite structure type EAB

1993 ◽  
Vol 48 (2-4) ◽  
pp. 147-152 ◽  
Author(s):  
B. R�dinger ◽  
E. Tillmanns ◽  
G. Hentschel
Keyword(s):  
Structure Type ◽  
New Mineral ◽  
Zeolite Structure

Structure and Thermoelectric Properties of New Quaternary Tin and Lead Bismuth Selenides, K1+xM4-2xBi7+xSe15 (M = Sn, Pb) and K1+xSn5-xBi11+xSe22

2000 ◽  
Vol 626 ◽  
Author(s):  
Antje Mrotzek ◽  
Kyoung-Shin Choi ◽  
Duck-Young Chung ◽  
Melissa A. Lane ◽  
John R. Ireland ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Single Crystal ◽  
Thermoelectric Properties ◽  
Three Dimensional ◽  
Structure Type ◽  
Narrow Gap ◽  
Low Thermal Conductivity ◽  
Seebeck Coefficients ◽  
Metal Atoms ◽  
Anionic Framework

ABSTRACTWe present the structure and thermoelectric properties of the new quaternary selenides K1+xM4–2xBi7+xSe15 (M = Sn, Pb) and K1-xSn5-xBi11+xSe22. The compounds K1+xM4-2xBi7+xSe15 (M= Sn, Pb) crystallize isostructural to A1+xPb4-2xSb7+xSe15 with A = K, Rb, while K1-xSn5-xBi11+xSe22 reveals a new structure type. In both structure types fragments of the Bi2Te3-type and the NaCl-type are connected to a three-dimensional anionic framework with K+ ions filled tunnels. The two structures vary by the size of the NaCl-type rods and are closely related to β-K2Bi8Se13 and K2.5Bi8.5Se14. The thermoelectric properties of K1+xM4-2xBi7+xSe15 (M = Sn, Pb) and K1-xSn5-xBi11+xSe22 were explored on single crystal and ingot samples. These compounds are narrow gap semiconductors and show n-type behavior with moderate Seebeck coefficients. They have very low thermal conductivity due to an extensive disorder of the metal atoms and possible “rattling” K+ ions.

Cyclohexylation of Naphthalene Over USY Zeolites

1999 ◽  
Vol 64 (1) ◽  
pp. 138-148 ◽  
Author(s):  
Miroslav Michvocík ◽  
Dušan Mravec ◽  
Milan Hronec ◽  
Agáta Smiešková ◽  
Pavol Hudec
Keyword(s):  
Liquid Phase ◽  
Hydrochloric Acid ◽  
Thermal Stabilization ◽  
Y Zeolite ◽  
Zeolite Structure ◽  
Positive Effect

The influence of thermal stabilization of NH4-Y zeolite and modification of USY zeolites with solutions of hydrochloric acid on the cyclohexylation of naphthalene in the liquid phase was studied. Removal of the part of extra-framework aluminium from zeolite structure has a positive effect on both conversion of naphthalene and amount of dicyclohexylnaphthalenes formed. Modification of zeolites leads to an increase in conversion and selectivity of β-substitution in the naphthalene cyclohexylation.

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