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Monarul Islam M, Feng X, Wang C, Rahman S, Alodhayb A, Georghiou PE, Matsumoto T, Tanaka J, Redshaw C, Yamato T. Studies on Lewis‐Acid Induced Reactions of 8‐Methoxy[2.2]metacyclophanes: A New Synthetic Route to Alkylated Pyrenes. ChemistrySelect 2020. [DOI: 10.1002/slct.201903048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Md. Monarul Islam
- Chemical Research Division Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi, Dhaka 1205 Bangladesh
- Department of Applied Chemistry, Faculty of Science and EngineeringSaga University Honjo-machi 1 Saga 840-8502 Japan
- Guangdong Provential Key Laboratory ofFunctionalSoft Condensed Matter,School of Materials andEnergyGuangdong University of Technology Guangzhou 510006 P. R. China
| | - Xing Feng
- Guangdong Provential Key Laboratory ofFunctionalSoft Condensed Matter,School of Materials andEnergyGuangdong University of Technology Guangzhou 510006 P. R. China
| | - Chuan‐Zeng Wang
- Department of Applied Chemistry, Faculty of Science and EngineeringSaga University Honjo-machi 1 Saga 840-8502 Japan
| | - Shofiur Rahman
- Aramco Laboratory for Applied Sensing Research, King Abdullah Institute for NanotechnologyKing Saudi University Riyadh 11451, Saudi Arabia
- Department of ChemistryMemorial University of Newfoundland St. John's, Newfoundland and Labrador A1B 3X7 Canada
| | - Abdullah Alodhayb
- Aramco Laboratory for Applied Sensing Research, King Abdullah Institute for NanotechnologyKing Saudi University Riyadh 11451, Saudi Arabia
- Research Chair for Tribology, Surface, and Interface Sciences, Department of Physics and AstronomyCollege of Science, King Saudi University Riyadh 11451 Saudi Arabia
| | - Paris E. Georghiou
- Department of ChemistryMemorial University of Newfoundland St. John's, Newfoundland and Labrador A1B 3X7 Canada
| | - Taisuke Matsumoto
- Institute of Materials Chemistry and EngineeringKyushu University 6-1, Kasugakoen Kasuga 816-8580 Japan
| | - Junji Tanaka
- Institute of Materials Chemistry and EngineeringKyushu University 6-1, Kasugakoen Kasuga 816-8580 Japan
| | - Carl Redshaw
- Department of Chemistry & BiochemistryThe University of Hull Cottingham Road Hull, Yorkshire HU6 7RX UK
| | - Takehiko Yamato
- Department of Applied Chemistry, Faculty of Science and EngineeringSaga University Honjo-machi 1 Saga 840-8502 Japan
- Loker Hydrocarbon Research InstituteUniversity of Southern California Los Angeles, CA 90089-1661 USA
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Romano RM, Moreno Betancourt A, Della Védova CO, Zeng X, Beckers H, Willner H, Schwabedissen J, Mitzel NW. Preparation and Properties of Chlorosulfuryl Chloroformate, ClC(O)OSO 2Cl. Inorg Chem 2018; 57:14834-14842. [PMID: 30444121 DOI: 10.1021/acs.inorgchem.8b02581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The novel chlorosulfuryl chloroformate, ClC(O)OSO2Cl, was prepared by the reaction of CCl4 and SO3. Alternatively, the compound was obtained from the direct insertion reaction of SO3 to Cl2C═O. The latter reaction constitutes also a confirmation of the proposed mechanism for the former one. Density functional theory and MP2 theoretical approximations predict the existence of two conformers, syn-gauche and syn-anti, depending on the value adopted by the dihedral angles ϕ(Cl-C-O-S) and ϕ(C-O-S-Cl). The structure of the syn-gauche conformer was determined by gas-phase electron diffraction (GED). The existence of the syn-anti conformer can be neither confirmed nor excluded by the GED experiment. Vibrational spectra (vapor-phase and argon-matrix Fourier transform infrared and liquid Fourier transform Raman) were interpreted by an equilibrium mixture between both conformers.
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Affiliation(s)
- Rosana M Romano
- CEQUINOR (UNLP, CCT-CONICET La Plata), Departamento de Química, Facultad de Ciencias Exactas , Universidad Nacional de La Plata . Boulevard 120, N° 1465 , La Plata CP1900 , Argentina
| | - Angélica Moreno Betancourt
- CEQUINOR (UNLP, CCT-CONICET La Plata), Departamento de Química, Facultad de Ciencias Exactas , Universidad Nacional de La Plata . Boulevard 120, N° 1465 , La Plata CP1900 , Argentina
| | - Carlos O Della Védova
- CEQUINOR (UNLP, CCT-CONICET La Plata), Departamento de Química, Facultad de Ciencias Exactas , Universidad Nacional de La Plata . Boulevard 120, N° 1465 , La Plata CP1900 , Argentina
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , Jiangsu , China
| | - Helmut Beckers
- Institut für Chemie und Biochemie, Anorganische Chemie , FU Berlin , Fabeckstraße 34/36 , Berlin 14195 , Germany
| | - Helge Willner
- FB C, Anorganische Chemie , Bergische Universität Wuppertal , Gaußstraße 20 , Wuppertal 42119 , Germany
| | - Jan Schwabedissen
- Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie , Universität Bielefeld , Universitätsstraße 25 , Bielefeld 33615 , Germany
| | - Norbert W Mitzel
- Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie , Universität Bielefeld , Universitätsstraße 25 , Bielefeld 33615 , Germany
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Blomeyer S, Reuter CG, Gil DM, Tuttolomondo ME, Altabef AB, Mitzel NW. Structure and bonding of 2,2,2-trichloroethylacetate: An experimental gas phase and computational study. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2016. [DOI: 10.1515/znb-2016-0166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The structural and conformational properties of 2,2,2-trichloroethylacetate, H3CCO2CH2CCl3, have been determined in the gas phase using gas electron diffraction (GED). The experimental measurements were complemented by MP2 and DFT quantum-chemical calculations. Two conformers separated by a shallow rotational barrier have been identified, one of C
1 (syn-gauche) and the other of C
s symmetry (syn-anti). All calculations indicate that syn-gauche is preferred in terms of enthalpy, whereas syn-anti seems to be slightly more stable regarding Gibbs free energy. In the gas-phase structure determination, dynamic models based on different potential energy surface scans were used. The one from dispersion-corrected density functional theory, predicting a preference of syn-gauche by 1.7kJmol−1, was found to describe the experimental data best. One- and two-conformer models had to be rejected due to correlations and unrealistically large amplitudes. Experimentally determined structural parameters are in good agreement with both, quantum-chemical calculations as well as GED data for related compounds. Interacting quantum atoms (IQA) analyses revealed that interplay between the carbonyl group and the hydrogen as well as chlorine atoms of the trichloroethyl group accounts for most of the stabilisation of the C
1 conformer. With intramolecular symmetry-adapted perturbation theory (I-SAPT) analyses it was possible to further elucidate the nature of dominant interactions in the two conformers. Herein, preference of syn-gauche can for the most part be attributed to electrostatic and to some extent to induction and dispersion interplays. In contrast this conformer is severely destabilised through steric repulsion. These results were supported by NBO analyses.
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Affiliation(s)
- Sebastian Blomeyer
- Chair of Inorganic and Structural Chemistry, Faculty of Chemistry and Center for Molecular Materials CM 2 , Bielefeld University, Universitätsstraße 25, D-33615 Bielefeld, Germany
| | - Christian G. Reuter
- Chair of Inorganic and Structural Chemistry, Faculty of Chemistry and Center for Molecular Materials CM 2 , Bielefeld University, Universitätsstraße 25, D-33615 Bielefeld, Germany
| | - Diego M. Gil
- INQUINOA (CONICET-UNT), Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Lorenzo 456, T4000CAN, San Miguel de Tucumán, R. Argentina
| | - María E. Tuttolomondo
- INQUINOA (CONICET-UNT), Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Lorenzo 456, T4000CAN, San Miguel de Tucumán, R. Argentina
| | - Aída Ben Altabef
- INQUINOA (CONICET-UNT), Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Lorenzo 456, T4000CAN, San Miguel de Tucumán, R. Argentina
| | - Norbert W. Mitzel
- Chair of Inorganic and Structural Chemistry, Faculty of Chemistry and Center for Molecular Materials CM 2 , Bielefeld University, Universitätsstraße 25, D-33615 Bielefeld, Germany , Fax: Int +(0)521 106 6026
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