THE INTERACTION OF FRIEDEL–CRAFTS CATALYSTS WITH ORGANIC MOLECULES: III. THE CH3COCl:GaCl3 SYSTEM

1962 ◽  
Vol 40 (3) ◽  
pp. 480-485 ◽  
Author(s):  
Denys Cook
Keyword(s):  
Solid State ◽  
Infrared Spectrum ◽  
Pure State ◽  
Acetyl Chloride ◽  
Organic Molecules ◽  
Ionic Species ◽  
Chloride Complex ◽  
Nitrobenzene Solution ◽  
Strong Band ◽  
Gallium Trichloride

The equimolar complex of acetyl chloride and gallium trichloride has been prepared and its infrared spectrum, both in the pure state and in nitrobenzene solution, has been recorded. In the pure complex a strong band at 2300 cm−1, hitherto attributed to the acetylium ion, has been observed. In solution in nitrobenzene, the 2300 cm−1 band is almost completely replaced by one at 2200 cm−1, while undissociated CH3COCl is present. Certain bands in this spectrum are consistent with the presence of the nitrobenzene – gallium chloride complex. A re-evaluation of the assignments of the acetylium ion suggests that a more complicated ionic species may be present in the solid state, possibly [CH3CO … GaCl3]+Cl−.

Emerging investigators series: silica-crosslinked graphene oxide membrane and its unique capability in removing neutral organic molecules from water

2016 ◽  
Vol 2 (4) ◽  
pp. 717-725 ◽  
Author(s):  
Sunxiang Zheng ◽  
Baoxia Mi
Keyword(s):  
Graphene Oxide ◽  
Organic Molecules ◽  
Ionic Species ◽  
Oxide Membrane ◽  
Unique Capability

A new graphene oxide (GO) membrane was synthesized by crosslinking GO nanosheets via silica. This membrane was found to remove neutral organic molecules much more efficiently than negatively charged ionic species.

Near-Infrared Solid-State Lasers Based on Small Organic Molecules

ACS Photonics ◽  
2019 ◽  
Vol 6 (11) ◽  
pp. 2590-2599 ◽  
Author(s):  
Jun-Jie Wu ◽  
Xue-Dong Wang ◽  
Liang-Sheng Liao
Keyword(s):  
Solid State ◽  
Near Infrared ◽  
Organic Molecules ◽  
Solid State Lasers ◽  
Small Organic Molecules

scholarly journals Advanced Research of the Triassic Clay from the Baltic Region

2012 ◽  
Vol 51 (4) ◽  
pp. 376-382
Author(s):  
J. Karasa ◽  
J. Kostjukovs ◽  
A. Palaša ◽  
A. Actiņš
Keyword(s):  
Solid State ◽  
Quantitative Determination ◽  
Organic Molecules ◽  
Clay Fraction ◽  
Solid State Reactions ◽  
Baltic Region ◽  
X Ray ◽  
Smectite Clays ◽  
The Baltic

A procedure of smectite containing clay enrichment has been optimized, and the process of sedimentation has been studied. The new enrichment based method for quantitative determination of clay fraction in smectite containing sediment was developed. A new method for obtaining organoclays from enriched smectite clays has been investigated. The method is based on solid-state reaction between smectite and organic compounds, where organic molecules can be intercalated in dried clay mineral (montmorillonite) by solid-state reactions, without or with use of solvents. The enriched clay and the obtained organoclay samples were characterized with X-ray powder diffraction (PXRD).

Aggregation-induced emission and reversible mechanochromic luminescence of carbazole-based triphenylacrylonitrile derivatives

RSC Advances ◽  
2016 ◽  
Vol 6 (39) ◽  
pp. 32697-32704 ◽  
Author(s):  
Yong Zhan ◽  
Peng Gong ◽  
Peng Yang ◽  
Zhe Jin ◽  
Ying Bao ◽  
...  
Keyword(s):  
Solid State ◽  
Organic Molecules ◽  
Stimuli Responsive ◽  
Responsive Materials ◽  
Aggregation Induced Emission ◽  
Π Interactions ◽  
Conjugated Organic Molecules ◽  
Mechanochromic Luminescence

Conjugated organic molecules exhibiting AIE are characterized by the strongly twisted conjugated skeleton, which could provide loose intermolecular stacking and weak π–π interactions in the solid state to generate stimuli-responsive materials.

Infrared spectrum of Mn(CO)4NO in the solid state. Further evidence for a C2v molecular symmetry

1972 ◽  
Vol 43 (2) ◽  
pp. 377-383 ◽  
Author(s):  
A. Poletti ◽  
G. Paliani ◽  
R. Cataliotti ◽  
A. Toffani ◽  
A. Santucci
Keyword(s):  
Solid State ◽  
Infrared Spectrum ◽  
Molecular Symmetry

THE INTERACTION OF FRIEDEL–CRAFTS CATALYSTS WITH ORGANIC MOLECULES: II. BORON TRIFLUORIDE WITH BENZOIC ANHYDRIDE

1962 ◽  
Vol 40 (3) ◽  
pp. 445-448 ◽  
Author(s):  
Denys Cook
Keyword(s):  
Infrared Spectrum ◽  
Boron Trifluoride ◽  
Organic Molecules ◽  
Carbonyl Groups ◽  
Benzoic Anhydride

The complex of boron trifluoride with benzoic anhydride has been prepared. One molecule of anhydride coordinates three molecules of boron trifluoride. The infrared spectrum shows that coordination takes place at the carbonyl groups, whose frequency is lowered some 200 cm−1. There is no trace of the benzoylium cation, C6H5O+. Although the spectra are complex, tentative assignments are made.

Sign in / Sign up

Export Citation Format

Share Document