Chirality of and gear motion in isopropyl methyl sulfide: A Fourier transform microwave study
Literature Information
Eizi Hirota, Keisuke Sakieda, Yoshiyuki Kawashima
Isopropyl methyl sulfide (CH3)2CHSCH3 was investigated by Fourier transform microwave spectroscopy. Two rotational isomers gauche and trans were detected. The rotational spectra of gauche were found fit to an asymmetric rotor pattern, except for being split by the internal rotation of CH3 attached to S with the potential barrier V3 of 601.642 (65) cm−1 and for exhibiting the effect of tunneling between the two equivalent gauche forms in a few high-K transitions. The tunneling was discussed from a viewpoint of chirality. The trans spectra appeared generally similar to those of gauche, with V3 to the S–CH3 internal rotation of 559.00 (11) cm−1, but satellite lines accompanied the ground torsional state lines in some high-K transitions. These satellites were ascribed to the excited state of the C(isop)–S torsion. In fact, the potential function for this torsion was shown by an ab initio calculation to be flat or even of double minima around the trans position, which was presumably caused by a gear coupling between the two methyl groups of the isopropyl group and the one in the S–CH3.
Related Literature
Self-repairing polymers: poly(dioxaborolane)s containing trigonal planar boron
Weijun Niu, Caroline O'Sullivan, Brett M. Rambo, Mark D. Smith, John J. Lavigne
DOI: 10.1039/B504634C
Ru(iv)-catalyzed isomerization of allylamines in water: A highly efficient procedure for the deprotection of N-allylic amines
Victorio Cadierno, Sergio E. García-Garrido, José Gimeno, Noel Nebra
DOI: 10.1039/B506788J
Gold supported on a mesoporous CeO2matrix as an efficient catalyst in the selective aerobic oxidation of aldehydes in the liquid phase
Avelino Corma, Marcelo E. Domine
DOI: 10.1039/B506685A
Photosensitizing properties of 2,4-dichlorobenzoic acid and chlorinated biphenyl carboxylic acids, potentially key components of chromophoric dissolved organic matter
Anne L. Boreen, Kristopher McNeill
DOI: 10.1039/B506971H
A two-dimensional clathrate hydrate sandwiched by planar arrays of a copper complex
Riichi Miyamoto, Rika Tanaka Hamazawa, Masakazu Hirotsu, Takanori Nishioka, Isamu Kinoshita, L. James Wright
DOI: 10.1039/B505681K
Mixed monolayer coverage on gold nanoparticles for interfacial stabilization of immiscible fluids
Elizabeth Glogowski, Jinbo He, Thomas P. Russell, Todd Emrick
DOI: 10.1039/B503670D
Enantioselective organocatalytic Michael addition of malonate esters to nitroolefins using bifunctional cinchonine derivatives‡
Jinxing Ye, Darren J. Dixon, Peter S. Hynes
DOI: 10.1039/B508833J
2-Phenallyl as a versatile protecting group for the asymmetric one-pot three-component synthesis of propargylamines
Nina Gommermann, Paul Knochel
DOI: 10.1039/B507810E
Analysis of key steps in the catalytic cross-coupling of alkyl electrophiles under Negishi-like conditions
Gavin D. Jones, Chris McFarland, Thomas J. Anderson, David A. Vicic
DOI: 10.1039/B504996B
You might also like
How should waste containing N-Methoxy-N-methyl-1,3-thiazole-5-carboxamide (CAS: 898825-89-3) be handled?
Waste containing N-Methoxy-N-methyl-1,3-thiazole-5-carboxamide (CAS: 898825-89-3...
How should N-(4-Biphenylyl)dibenzo[b,d]furan-4-amine (CAS: 1318338-47-4) be stored?
N-(4-Biphenylyl)dibenzo[b,d]furan-4-amine should be stored in a tightly sealed c...
What is the market or research trend for 3-Acetamido-5-amino-2,4,6-triiodobenzoic acid (CAS: 1713-07-1)?
The market for 3-Acetamido-5-amino-2,4,6-triiodobenzoic acid (CAS: 1713-07-1) is...
How should Benzyl 2-O-acetyl-3,4,6-tri-O-benzyl-beta-D-galactopyranoside (CAS: 61820-03-9) be stored?
Benzyl 2-O-acetyl-3,4,6-tri-O-benzyl-beta-D-galactopyranoside (CAS: 61820-03-9) ...
What regulatory guidelines apply to 2-Ethylpiperazine dihydrochloride (CAS: 438050-52-3)?
2-Ethylpiperazine dihydrochloride (CAS: 438050-52-3) is regulated under the Glob...
What regulatory guidelines apply to 1,1'-[1,3-Phenylenebis(methylene)]bis(3-methyl-1H-pyrrole-2,5-dione) (CAS: 119462-56-5)?
1,1'-[1,3-Phenylenebis(methylene)]bis(3-methyl-1H-pyrrole-2,5-dione) (CAS: 11946...
Are there alternatives to 5-Fluoro-2-(1-pyrrolidinyl)pyridine (CAS: 1287217-79-1) in synthesis?
Several alternatives can be used in the synthesis of 5-Fluoro-2-(1-pyrrolidinyl)...
What precautions should be taken when handling 1-((2R,3R,4R,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxy-3-methoxytetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (CAS: 153631-19-7)?
Proper personal protective equipment (PPE) must be worn when handling this compo...
What precautions should be taken when handling 6-Bromoimidazo[1,2-a]pyridin-8-amine (CAS: 676371-00-9)?
When handling 6-Bromoimidazo[1,2-a]pyridin-8-amine, it is important to wear appr...
Are there alternatives to (2S,4R)-4-(4-Nitrobenzyl)pyrrolidine-2-carboxylic acid hydrochloride (CAS: 1049740-22-8) in synthesis?
Alternatives to (2S,4R)-4-(4-Nitrobenzyl)pyrrolidine-2-carboxylic acid hydrochlo...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














