Ab Initio Crystal Structure Determination and Thermal Behaviour of a Large-Pore, 24-Membered Ring, Zeolitic Nickel(II) Phosphate, VSB-5

2001 ◽  
Vol 378-381 ◽  
pp. 576-581 ◽  
Author(s):  
N. Guillou ◽  
P.M. Forster ◽  
Q. Gao ◽  
A.K. Cheetham ◽  
G. Férey
Keyword(s):  
Crystal Structure ◽  
Ab Initio ◽  
Thermal Behaviour ◽  
Structure Determination ◽  
Membered Ring ◽  
Crystal Structure Determination ◽  
Large Pore

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.

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