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Bühringer MU, Padberg K, Phleps MD, Maid H, Placht C, Neiss C, Ferguson MJ, Görling A, Tykwinski RR. Doppelbindungen? Untersuchungen der Rotationsbarrieren von cumulenischen C=C‐Bindungen in Tetraaryl[
n
]cumulenen (
n=
3, 5, 7, 9). Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802137] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Martina U. Bühringer
- Department für Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Straße 10 91058 Erlangen Deutschland
| | - Kevin Padberg
- Department für Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Straße 10 91058 Erlangen Deutschland
| | - Martin D. Phleps
- Department für Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Straße 10 91058 Erlangen Deutschland
| | - Harald Maid
- Department für Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Straße 10 91058 Erlangen Deutschland
| | - Christian Placht
- Department für Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Straße 10 91058 Erlangen Deutschland
| | - Christian Neiss
- Lehrstuhl für Theoretische Chemie & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) Egerlandstraße 3 91058 Erlangen Deutschland
| | - Michael J. Ferguson
- Department of ChemistryUniversity of Alberta Edmonton Alberta T6G 2G2 Kanada
| | - Andreas Görling
- Lehrstuhl für Theoretische Chemie & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) Egerlandstraße 3 91058 Erlangen Deutschland
| | - Rik R. Tykwinski
- Department für Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Straße 10 91058 Erlangen Deutschland
- Department of ChemistryUniversity of Alberta Edmonton Alberta T6G 2G2 Kanada
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3
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Bühringer MU, Padberg K, Phleps MD, Maid H, Placht C, Neiss C, Ferguson MJ, Görling A, Tykwinski RR. Double Bonds? Studies on the Barrier to Rotation about the Cumulenic C=C Bonds of Tetraaryl[
n
]cumulenes (
n=
3, 5, 7, 9). Angew Chem Int Ed Engl 2018; 57:8321-8325. [DOI: 10.1002/anie.201802137] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Martina U. Bühringer
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Str. 10 91058 Erlangen Germany
| | - Kevin Padberg
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Str. 10 91058 Erlangen Germany
| | - Martin D. Phleps
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Str. 10 91058 Erlangen Germany
| | - Harald Maid
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Str. 10 91058 Erlangen Germany
| | - Christian Placht
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Str. 10 91058 Erlangen Germany
| | - Christian Neiss
- Lehrstuhl für Theoretische Chemie & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University Erlangen-Nürnberg (FAU) Egerlandstr. 3 91058 Erlangen Germany
| | - Michael J. Ferguson
- Department of ChemistryUniversity of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Andreas Görling
- Lehrstuhl für Theoretische Chemie & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University Erlangen-Nürnberg (FAU) Egerlandstr. 3 91058 Erlangen Germany
| | - Rik R. Tykwinski
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University Erlangen-Nürnberg (FAU) Nikolaus-Fiebiger Str. 10 91058 Erlangen Germany
- Department of ChemistryUniversity of Alberta Edmonton Alberta T6G 2G2 Canada
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8
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Azarakhshi F, Nori-Shargh D, Masnabadi N, Yahyaei H, Mousavi SN. Conformational Behaviors of 2-Substituted Cyclohexanone Oximes: An AB Initio, Hybrid Dft Study, and NBO Interpretation. PHOSPHORUS SULFUR 2012. [DOI: 10.1080/10426507.2011.571224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Fatemeh Azarakhshi
- a Department of Chemistry , Arak Branch, Islamic Azad University , Arak , Iran
| | - Davood Nori-Shargh
- a Department of Chemistry , Arak Branch, Islamic Azad University , Arak , Iran
| | - Nasrin Masnabadi
- a Department of Chemistry , Arak Branch, Islamic Azad University , Arak , Iran
| | - Hooriye Yahyaei
- b Department of Chemistry, Zanjan Branch , Islamic Azad University , Zanjan , Iran
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10
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Zinlynezhad A, Nori-Shargh D, Najma N, Yahyaei H. Configurational Properties of N,N′-Dimethyl-1,3-Diazacyclohexane and Its Analogues Containing P and As Atoms: A Hybrid-DFT Study and NBO Interpretation. PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426501003776954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Davood Nori-Shargh
- b Chemistry Department , Islamic Azad University , Science and Research Branch, Hesarak, Poonak, Tehran, Iran
| | - Neda Najma
- c Chemistry Department , Islamic Azad University, Science Faculty , Arak Branch, Arak, Iran
| | - Hooriye Yahyaei
- d Chemistry Department , Islamic Azad University , Zanjan Branch, Zanjan, Iran
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12
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Nori-Shargh D, Khamooshi-Sarabi A, Sharifi S, Sheikh-Ansari E. Hybrid-DFT Study and NBO Analysis of the Stereoelectronic Interaction Effects (Associated with the Anomeric Effects) on the Conformational Properties of 2,3,5,6-Tetrahalo-1,4-dioxanes and Their Analogs Containing S and Se Atoms. PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426500903530875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Davood Nori-Shargh
- a Chemistry Department, Science and Research Branch , Islamic Azad University, Hesarak , Poonak, Tehran, Iran
- b Chemistry Department, Medical Science Branch , Islamic Azad University , Tehran, Iran
| | | | - Sasan Sharifi
- c Chemistry Department, Arak Branch , Islamic Azad University , Arak, Iran
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14
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Nori-Shargh D, Hassanzadeh N, Kosari M, Rabieikarahroudi P, Yahyaei H, Sharifi S. Stereoelectronic interaction effects on the conformational properties of 5-methyl-5-aza-1,3-dithiacyclohexane and its analogous containing N, P, O, and Se atoms — A hybrid density functional theory (DFT), ab initio study, and natural bond orbital (NBO) analysis. CAN J CHEM 2010. [DOI: 10.1139/v10-022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Natural bond orbital (NBO) analysis, hybrid density functional theory (hybrid DFT: B3LYP/6-311+G**//B3LYP/6-311+G**), and ab initio molecular orbital (MO: MP2/6-311+G**//B3LYP/6-311+G**) based methods were used to study the electronic delocalization energy (DE), dipole–dipole interactions, and steric repulsions on the conformational properties of 5-methyl-5-aza-1,3-dioxacyclohexane (1) (-phospha- (2), -arsena- (3)), 5-methyl-5-aza-1,3-dithiacyclohexane (4) (-phospha- (5), -arsena- (6)), and 5-methyl-5-aza-1,3-diselenacyclohexane (7) (-phospha- (8), -arsena- (9)). The MP2/6-311+G**//B3LYP/6-311+G** and B3LYP/6-311+G**//B3LYP/6-311+G** results revealed that the axial stereoisomers of compounds 1–9 are more stable than their equatorial stereoisomers. In this regard, the obtained results showed an egregious axial preference for compounds 1, 4, and 7. Importantly, the results showed that the energy differences between the axial and equatorial stereoisomers decrease from compounds 1 → 3, 4 → 6, and also, 7 → 9. The NBO analysis of donor–acceptor interactions revealed that the calculated DE for compounds 1–3 are –21.50, –7.84, and –4.38 kcal mol–1, respectively. The decrease of the calculated DE values from compound 1 to compound 3 could reasonably explain the decrease of the energy differences between the axial and equatorial stereoisomers from compound 1 to compound 3. The correlation between the DE, dipole–dipole interactions, structural parameters, and conformational behaviors of compounds 1–9 has been investigated.
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Affiliation(s)
- Davood Nori-Shargh
- Chemistry Department, Science and Research Branch, Islamic Azad University, Hesarak, Poonak, Tehran, Iran
- Chemistry Department, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
- Chemistry Department, Science Faculty, Arak Branch, Islamic Azad University, Arak, Iran
- Chemistry Department, Zanjan Branch, Islamic Azad University, P.O. Box 49195-467, Zanjan, Iran
| | - Neda Hassanzadeh
- Chemistry Department, Science and Research Branch, Islamic Azad University, Hesarak, Poonak, Tehran, Iran
- Chemistry Department, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
- Chemistry Department, Science Faculty, Arak Branch, Islamic Azad University, Arak, Iran
- Chemistry Department, Zanjan Branch, Islamic Azad University, P.O. Box 49195-467, Zanjan, Iran
| | - Meisam Kosari
- Chemistry Department, Science and Research Branch, Islamic Azad University, Hesarak, Poonak, Tehran, Iran
- Chemistry Department, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
- Chemistry Department, Science Faculty, Arak Branch, Islamic Azad University, Arak, Iran
- Chemistry Department, Zanjan Branch, Islamic Azad University, P.O. Box 49195-467, Zanjan, Iran
| | - Parvin Rabieikarahroudi
- Chemistry Department, Science and Research Branch, Islamic Azad University, Hesarak, Poonak, Tehran, Iran
- Chemistry Department, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
- Chemistry Department, Science Faculty, Arak Branch, Islamic Azad University, Arak, Iran
- Chemistry Department, Zanjan Branch, Islamic Azad University, P.O. Box 49195-467, Zanjan, Iran
| | - Hooriye Yahyaei
- Chemistry Department, Science and Research Branch, Islamic Azad University, Hesarak, Poonak, Tehran, Iran
- Chemistry Department, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
- Chemistry Department, Science Faculty, Arak Branch, Islamic Azad University, Arak, Iran
- Chemistry Department, Zanjan Branch, Islamic Azad University, P.O. Box 49195-467, Zanjan, Iran
| | - Sasan Sharifi
- Chemistry Department, Science and Research Branch, Islamic Azad University, Hesarak, Poonak, Tehran, Iran
- Chemistry Department, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
- Chemistry Department, Science Faculty, Arak Branch, Islamic Azad University, Arak, Iran
- Chemistry Department, Zanjan Branch, Islamic Azad University, P.O. Box 49195-467, Zanjan, Iran
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18
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Gu X, Kaiser RI, Mebel AM. Chemistry of energetically activated cumulenes - from allene (H2CCCH2) to hexapentaene (H2CCCCCCH2). Chemphyschem 2008; 9:350-69. [PMID: 18275046 DOI: 10.1002/cphc.200700609] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
During the last decade, experimental and theoretical studies on the unimolecular decomposition of cumulenes (H(2)C(n)H(2)) from propadiene (H(2)CCCH(2)) to hexapentaene (H(2)CCCCCCH(2)) have received considerable attention due to the importance of these carbon-bearing molecules in combustion flames, chemical vapor deposition processes, atmospheric chemistry, and the chemistry of the interstellar medium. Cumulenes and their substituted counterparts also have significant technical potential as elements for molecular machines (nanomechanics), molecular wires (nano-electronics), nonlinear optics, and molecular sensors. In this review, we present a systematic overview of the stability, formation, and unimolecular decomposition of chemically, photo-chemically, and thermally activated small to medium-sized cumulenes in extreme environments. By concentrating on reactions under gas phase thermal conditions (pyrolysis) and on molecular beam experiments conducted under single-collision conditions (crossed beam and photodissociation studies), a comprehensive picture on the unimolecular decomposition dynamics of cumulenes transpires.
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Affiliation(s)
- Xibin Gu
- Department of Chemistry, University of Hawai'i at Manoa, Honolulu, HI 96822, USA
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