Thermochemistry of the Initial Steps of Methylaluminoxane Formation. Aluminoxanes and Cycloaluminoxanes by Methane Elimination from Dimethylaluminum Hydroxide and Its Dimeric Aggregates

2011 ◽  
Vol 133 (34) ◽  
pp. 13323-13336 ◽  
Author(s):  
Rainer Glaser ◽  
Xinsen Sun
Keyword(s):  
Dimeric Aggregates ◽  
Methane Elimination

STM Analysis of a Chiral Helical Onedimensional Nickel(II) Coordination Polymer

2008 ◽  
Vol 63 (12) ◽  
pp. 1443-1446 ◽  
Author(s):  
Mohammad Sahabul Alam ◽  
Andreas Scheurer ◽  
Rolf W. Saalfrank ◽  
Paul Müller
Keyword(s):  
Coordination Polymer ◽  
Single Crystals ◽  
Excellent Agreement ◽  
Pyrolytic Graphite ◽  
Highly Oriented Pyrolytic Graphite ◽  
X Ray ◽  
X Ray Crystallography ◽  
Salen Complexes ◽  
Polymeric Chains ◽  
Dimeric Aggregates

C2-symmetric nickel(II) salen complexes [NiL] 1 were deposited on a highly oriented pyrolytic graphite (HOPG) surface from their acetone solutions. They aggregate easily to single, segregated, homochiral polymeric chains of (M)-1D- 1n [NiL] (2) on the substrate as also found in single crystals. In STM topography, the single helical 1D structures 2 found on the surface were in excellent agreement with the dimension of aligned dimeric aggregates of 1 obtained from X-ray crystallography. Weak intermolecular NiII...OMe coordinations (dMeO−Ni = 0.35 nm) were found to be responsible for the formation of the chiral, helical and 1D assemblies on the substrate.

Self-Assembly of Tris(2-ureidobenzyl)amines: A New Type of Capped, Capsule-Like Dimeric Aggregates Derived from a Highly Flexible Skeleton

2004 ◽  
Vol 10 (6) ◽  
pp. 1383-1397 ◽  
Author(s):  
Mateo Alajarín ◽  
Aurelia Pastor ◽  
Raúl-Ángel Orenes ◽  
Jonathan W. Steed ◽  
Ryuichi Arakawa
Keyword(s):  
Self Assembly ◽  
New Type ◽  
Dimeric Aggregates

Polymeric dimethylytterbium and the terminal methyl complex (TptBu,Me)Yb(CH3)(thf)

2021 ◽  
Vol 57 (2) ◽  
pp. 243-246
Author(s):  
Markus M. Katzenmayer ◽  
Benjamin M. Wolf ◽  
Alexandros Mortis ◽  
Cäcilia Maichle-Mössmer ◽  
Reiner Anwander
Keyword(s):  
Nmr Spectroscopy ◽  
Mas Nmr ◽  
Elimination Reactions ◽  
Cp Mas Nmr ◽  
Methane Elimination

Pyrophoric redox-sensitive [YbMe2]n is obtained from [Yb{N(SiMe3)2}2]2 and methyllithium and its existence proven by 171Yb CP/MAS NMR spectroscopy and distinct methane elimination reactions.

Methane elimination fromn-pentane

2009 ◽  
Vol 109 (2) ◽  
pp. 196-201 ◽  
Author(s):  
Roman V. Tsyshevsky ◽  
Guzel G. Garifzianova ◽  
Alexander G. Shamov ◽  
Grigorii M. Khrapkovskii
Keyword(s):  
Methane Elimination

scholarly journals 6,7-Dimethoxy-2,4-diphenylquinoline

2014 ◽  
Vol 70 (2) ◽  
pp. o165-o165
Author(s):  
M. Prabhuswamy ◽  
S. Madan Kumar ◽  
T. R. Swaroop ◽  
K. S. Rangappa ◽  
N. K. Lokanath
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Asymmetric Unit ◽  
Compound C ◽  
Centroid Distance ◽  
Phenyl Rings ◽  
Independent Molecules ◽  
Dimeric Aggregates

In the title structure of the title compound, C23H19NO2, two conformationally similar molecules (AandB) comprise the asymmetric unit. The dihedral angle between phenyl rings bridged by the quinoline moiety are 76.25 (8)° in moleculeAand 70.39 (9)° in moleculeB. In the crystal, the independent molecules are connected by C—H...O hydrogen bonds and the resulting dimeric aggregates are linked by π–π [inter-centroid distance = 3.7370 (8) Å] and C—H...π interactions, forming a three-dimensional architecture.

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