Influence of valence environment on the O?Si bond in pentacoordinated silicon compounds. 2. Crystal structure of three O?Si trifluorosilanes

1994 ◽  
Vol 34 (6) ◽  
pp. 888-894 ◽  
Author(s):  
Yu. E. Ovchinnikov ◽  
A. O. Mozzhukhin ◽  
M. Yu. Antipin ◽  
Yu. T. Struchkov ◽  
V. P. Baryshok ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Silicon Compounds ◽  
Pentacoordinated Silicon Compounds

Singly Charged λ6Si-Silicate Anions with an SiF5C Skeleton: Syntheses and Crystal Structure Analyses of the Ionic Hexacoordinate Silicon Compounds [Me3NH][F5SiCH2NMe2H]·H2O and [Me3NH][F5SiCH2NMe2H]·H2O

2000 ◽  
Vol 55 (1) ◽  
pp. 60-64
Author(s):  
Melanie Pülm ◽  
Joachim Becht ◽  
Reinhold Tacke
Keyword(s):  
Crystal Structure ◽  
Lewis Acids ◽  
Molar Ratio ◽  
X Ray Diffraction ◽  
Coordination Polyhedra ◽  
Silicon Compounds ◽  
X Ray ◽  
Distorted Octahedra ◽  
Singly Charged ◽  
Crystalline Hydrates

The zwitterionic λ5Si-tetrafluorosilicates F4SiCH2NMe2H (1) and F4SiCH2NMe3 (2) behave as Lewis acids and react with [Me3NH]F (molar ratio 1:1) in aqueous solution to yield the ionic λ6Si-pentafluorosilicates [Me3NH][F5SiCH2NMe2H] (3) and [Me3NH][F5SiCH2NMe3] (4), respectively. These hexacoordinate silicon compounds contain singly charged λ6Si-silicate anions ([F5SiCH2NMe2H]- , [F5SiCH2NMe3]- ) with an SiF5C skeleton. Compounds 3 and 4 were isolated as the crystalline hydrates 3·H2O (yield 80%) and 4·H2O (yield 82%) which were structurally characterized by single-crystal X-ray diffraction. The Si-coordination polyhedra in the crystals of 3·H2O and 4·H2O are slightly distorted octahedra

scholarly journals Complementary bonding analysis of the N–Si interaction in pentacoordinated silicon compounds using quantum crystallography

2019 ◽  
Vol 48 (43) ◽  
pp. 16330-16339 ◽  
Author(s):  
Malte Fugel ◽  
Maksym V. Ponomarenko ◽  
Maxie F. Hesse ◽  
Lorraine A. Malaspina ◽  
Florian Kleemiss ◽  
...  
Keyword(s):  
Unique Combination ◽  
Silicon Compounds ◽  
Bonding Analysis ◽  
Pentacoordinated Silicon Compounds ◽  
Quantum Crystallography

The unique combination of quantum crystallography and complementary bonding analysis is used to investigate the bonding of pentacoordinated silicon atoms.

Addition Reaction of Pentacoordinated Silicon Compounds by R3SiX with NR’3

2008 ◽  
Vol 24 (02) ◽  
pp. 217-222
Author(s):  
BEI Yi-Ling ◽  
◽  
◽  
ZHU Chen-Fu ◽  
LIU Qing-Yang ◽  
...  
Keyword(s):  
Addition Reaction ◽  
Silicon Compounds ◽  
Pentacoordinated Silicon Compounds

Inductive Effects in Neutral Pentacoordinated Silicon Compounds Containing a Si ← N Dative Bond. A Theoretical Study

1999 ◽  
Vol 18 (26) ◽  
pp. 5584-5593 ◽  
Author(s):  
Josep M. Anglada ◽  
Carles Bo ◽  
Josep M. Bofill ◽  
Ramon Crehuet ◽  
Josep M. Poblet
Keyword(s):  
Theoretical Study ◽  
Silicon Compounds ◽  
Dative Bond ◽  
Inductive Effects ◽  
Pentacoordinated Silicon Compounds
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