1
|
He C, Goettl SJ, Yang Z, Kaiser RI, Nikolayev AA, Azyazov VN, Mebel AM. Gas-Phase Preparation of Subvalent Germanium Monoxide (GeO, X 1Σ+) via Non-Adiabatic Reaction Dynamics in the Exit Channel. J Phys Chem Lett 2022; 13:4589-4597. [PMID: 35584300 DOI: 10.1021/acs.jpclett.2c00706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The subvalent germanium monoxide (GeO, X1Σ+) molecule has been prepared via the elementary reaction of atomic germanium (Ge, 3Pj) and molecular oxygen (O2, X3Σg-) with each reactant in its electronic ground state by means of single-collision conditions. The merging of electronic structure calculations with crossed beam experiments suggests that the formation of germanium monoxide (GeO, X1Σ+) commences on the singlet surface through unimolecular decomposition of a linear singlet collision complex (GeOO, i1, C∞v, 1Σ+) via intersystem crossing (ISC) yielding nearly exclusively germanium monoxide (GeO, X1Σ+) along with atomic oxygen in its electronic ground state [p1, O(3P)]. These results provide a sophisticated reaction mechanism of the germanium-oxygen system and demonstrate the efficient "heavy atom effect" of germanium in ISC yielding (nearly) exclusive singlet germanium monoxide and triplet atomic oxygen compared to similar systems (carbon dioxide and dinitrogen monoxide), in which non-adiabatic reaction dynamics represent only minor channels.
Collapse
Affiliation(s)
- Chao He
- Department of Chemistry, University of Hawai'i at Ma̅noa, Honolulu, Hawaii 96822, United States
| | - Shane J Goettl
- Department of Chemistry, University of Hawai'i at Ma̅noa, Honolulu, Hawaii 96822, United States
| | - Zhenghai Yang
- Department of Chemistry, University of Hawai'i at Ma̅noa, Honolulu, Hawaii 96822, United States
| | - Ralf I Kaiser
- Department of Chemistry, University of Hawai'i at Ma̅noa, Honolulu, Hawaii 96822, United States
| | - Anatoliy A Nikolayev
- Samara National Research University, Samara 443086, Russia
- Lebedev Physical Institute, Samara 443011, Russia
| | - Valeriy N Azyazov
- Samara National Research University, Samara 443086, Russia
- Lebedev Physical Institute, Samara 443011, Russia
| | - Alexander M Mebel
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
| |
Collapse
|
2
|
Kassaee M, Musavi S, Ghambarian M, Zanjani MK. Switching of global minima of novel germylenic reactive intermediates via halogens (X): C2GeH2 vs. C2GeHX at ab initio and DFT levels. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2006.02.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
3
|
Kalcher J. Singlet-triplet splittings and ground- and excited-state electron affinities of selected cyanosilylenes, XSiCN (X = H, F, Cl, CH3, SiH3, CN). J Phys Chem A 2005; 109:11437-42. [PMID: 16354033 DOI: 10.1021/jp0534840] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Several cyanosilylenes, XSiCN, (X = H, F, Cl, CH3, SiH3, CN) have been investigated using the RHF-ACPF and CAS(2,2)-ACPF methods in conjunction with the aug-cc-pVTZ basis sets. All silylenes are found to have singlet ground states. The ground-state electron affinities are found to be rather high, i.e., 1.832, 1.497, 1.896, 1.492, 2.235, and 2.631 eV for HSiCN, FSiCN, ClSiCN, H3CSiCN, H3SiSiCN, and Si(CN)2, respectively. The existence of bound excited negative ion states has been discovered for the first time within these silylenes. All these bound excited anion states belong to the totally symmetric irreducible representations and can be characterized as dipole-bound negative ion states. All triplet excited states have even larger dipole moments than the singlet states and are, therefore, "dressed" by dipole-bound negative ion states, which correspond to Feshbach resonances.
Collapse
Affiliation(s)
- Josef Kalcher
- Karl-Franzens-Universität, Institut für Chemie, Strassoldogasse 10, A-8010 Graz, Austria.
| |
Collapse
|
4
|
Magin IM, Purtov PA, Kruppa AI, Leshina TV. Peculiarities of Magnetic and Spin Effects in a Biradical/Stable Radical Complex (Three-Spin System). Theory and Comparison with Experiment. J Phys Chem A 2005; 109:7396-401. [PMID: 16834106 DOI: 10.1021/jp051115y] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The field dependencies of biradical recombination probability in the presence of paramagnetic species with spins S(3) = 1 and S(3) = (1)/(2) have been calculated in the framework of the density matrix formalism. To describe the effect of the "third" spin on the spin evolution in biradical, we have also considered the spin exchange interaction between the added spin and one of the paramagnetic biradical centers. A characteristic feature of the calculated field dependencies is the existence of several extrema with positions and magnitudes depending on the signs and values of the exchange integrals in the system. The method proposed can be used to describe the effect of spin catalysis. It is shown that for the system with the third spin S(3) = 1 spin catalysis manifests itself stronger than in the case of spin S(3) = (1)/(2). The dependence of spin catalysis efficiency on the exchange interaction with the third spin has an extremum with position independent of the value of the spin added.
Collapse
Affiliation(s)
- Ilya M Magin
- Institute of Chemical Kinetics and Combustion, Institutskaya st. 3, 630090, Novosibirsk, Russia.
| | | | | | | |
Collapse
|
5
|
Allendorf MD, Melius CF. BAC-MP4 Predictions of Thermochemistry for Gas-Phase Tin Compounds in the Sn−H−C−Cl System. J Phys Chem A 2005; 109:4939-49. [PMID: 16833841 DOI: 10.1021/jp040625+] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work, the BAC-MP4 method is extended for the first time to compounds in the fourth row of the periodic table, resulting in a self-consistent set of thermochemical data for 56 tin-containing molecules in the Sn-H-C-Cl system. The BAC-MP4 method combines ab initio electronic structure calculations with empirical corrections to obtain accurate heats of formation. To obtain electronic energies for tin-containing species, the standard 6-31G(d,p) basis set used in BAC-MP4 calculations is augmented with a relativistic effective core potential to describe the electronic structure of the tin atom. Both stable compounds and radical species are included in this study. Trends within homologous series and calculated bond dissociation energies are consistent with previous BAC-MP4 predictions for group 14 compounds and the limited data available from the literature, indicating that the method is performing well for these compounds.
Collapse
Affiliation(s)
- Mark D Allendorf
- Sandia National Laboratories, Combustion Research Facility, Livermore, California 94551-0969, USA.
| | | |
Collapse
|
6
|
|
7
|
Apeloig Y, Pauncz R, Karni M, West R, Steiner W, Chapman D. Why Is Methylene a Ground State Triplet while Silylene Is a Ground State Singlet? Organometallics 2003. [DOI: 10.1021/om0302591] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yitzhak Apeloig
- Department of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion−Israel Institute of Technology, Haifa 32000, Israel, Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, and Department of Chemistry, Southern Oregon University, Ashland, Oregon 97520
| | - Ruben Pauncz
- Department of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion−Israel Institute of Technology, Haifa 32000, Israel, Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, and Department of Chemistry, Southern Oregon University, Ashland, Oregon 97520
| | - Miriam Karni
- Department of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion−Israel Institute of Technology, Haifa 32000, Israel, Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, and Department of Chemistry, Southern Oregon University, Ashland, Oregon 97520
| | - Robert West
- Department of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion−Israel Institute of Technology, Haifa 32000, Israel, Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, and Department of Chemistry, Southern Oregon University, Ashland, Oregon 97520
| | - Wes Steiner
- Department of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion−Israel Institute of Technology, Haifa 32000, Israel, Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, and Department of Chemistry, Southern Oregon University, Ashland, Oregon 97520
| | - Douglas Chapman
- Department of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion−Israel Institute of Technology, Haifa 32000, Israel, Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, and Department of Chemistry, Southern Oregon University, Ashland, Oregon 97520
| |
Collapse
|
8
|
|
9
|
Su MD, Chu SY. Theoretical Study of Reactions of Arduengo-Type Carbene, Silylene, and Germylene with CH(4). Inorg Chem 1999; 38:4819-4823. [PMID: 11671211 DOI: 10.1021/ic990442f] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The potential energy surfaces corresponding to the reaction of cyclic, unsaturated diaminocarbene (DAC), -silylene (DAS), and -germylene (DAG) with methane have been investigated by employing the B3LYP and CCSD(T) levels of theory. Our model calculations demonstrate that the electronic perturbation effect should play a significant role in determining the magnitude of their singlet-triplet splitting. Namely, the singlet-triplet gap of DAC, DAS, and DAG shows the opposite order as the parent compounds (CH(2), SiH(2), and GeH(2)), as well as the compounds with pi-donor substituents (C(NH(2))(2), Si(NH(2))(2), and Ge(NH(2))(2)). Our theoretical investigations suggest that the heavier the X center (X = C, Si, Ge), the larger the insertion barrier, and the less exothermic (or the more endothermic) the insertion reaction. Namely, the chemical reactivity decreases in the order DAC > DAS > DAG. Even so, all the species are predicted to be kinetically stable with respect to insertion reactions with alkanes. Moreover, it is found that a singlet state DAC, DAS, or DAG inserts in a concerted manner, and that the stereochemistry at the X center (X = C, Si, and Ge) is preserved.
Collapse
Affiliation(s)
- Ming-Der Su
- Department of Chemistry, National Tsing Hua University, Hsinchu 30043, Taiwan, Republic of China
| | | |
Collapse
|
10
|
Havlas Z, Downing JW, Michl J. Spin−Orbit Coupling in Biradicals. 2. Ab Initio Methodology and Application to 1,1-Biradicals: Carbene and Silylene. J Phys Chem A 1998. [DOI: 10.1021/jp9804603] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zdeněk Havlas
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, and Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - John W. Downing
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, and Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Josef Michl
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, and Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| |
Collapse
|
11
|
Wang CC, Wang Y, Liu HJ, Lin KJ, Chou LK, Chan KS. Bond Characterization of Chromium−Fischer Carbene Complexes: A Combined Study of Experiment and Theory. J Phys Chem A 1997. [DOI: 10.1021/jp971848l] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chih-Chieh Wang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan, ROC
| | - Yu Wang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan, ROC
| | - Hui-Jean Liu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan, ROC
| | - Kuan-Jiuh Lin
- Department of Chemistry, National Taiwan University, Taipei, Taiwan, ROC
| | - Liang-Kuei Chou
- Department of Chemistry, National Taiwan University, Taipei, Taiwan, ROC
| | - Kin-Shing Chan
- Department of Chemistry, National Taiwan University, Taipei, Taiwan, ROC
| |
Collapse
|
12
|
Sosa RM, Gardiol P. Electronic structure and properties of transition metal complexes MCH2 and M5 CH2 (M = Fe, Ni, Cu;) by density functional methods. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0166-1280(96)04840-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
13
|
Matsunaga N, Koseki S, Gordon MS. Relativistic potential energy surfaces of XH2 (X=C, Si, Ge, Sn, and Pb) molecules: Coupling of 1A1 and 3B1 states. J Chem Phys 1996. [DOI: 10.1063/1.471515] [Citation(s) in RCA: 74] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
14
|
San Miguel MA, Márquez A, Fernández Sanz J. A Theoretical Study of ZnCH2 and ZnSnH2 Electronic Structure and the ZnCH2−HZnCH Photolytic Rearrangement. J Am Chem Soc 1996. [DOI: 10.1021/ja951865t] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. A. San Miguel
- Contribution from the Departamento de Química Física, Facultad de Química, E-41012, Sevilla, Spain
| | - A. Márquez
- Contribution from the Departamento de Química Física, Facultad de Química, E-41012, Sevilla, Spain
| | - Javier Fernández Sanz
- Contribution from the Departamento de Química Física, Facultad de Química, E-41012, Sevilla, Spain
| |
Collapse
|
15
|
Karolczak J, Harper WW, Grev RS, Clouthier DJ. The structure, spectroscopy, and excited state predissociation dynamics of GeH2. J Chem Phys 1995. [DOI: 10.1063/1.470520] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
16
|
Saito K, Obi K. The first observation of the à 1B1-X̃ 1A1 transition of GeH2 and GeD2 radicals. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)89287-r] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
17
|
Theoretical study of small hydrogenated silicon compounds. I. Theoretical study of the SiH2 dissociation channels up to 8 eV excitation energy. Chem Phys 1993. [DOI: 10.1016/0301-0104(93)87003-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
18
|
Selmani A, Elfeninat F, Hliwa M. Electronic and geometric structures of the high- and low-spin multiplets of the Cr(C6H6) π complex. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)85094-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
19
|
Dixon DA, Gole JL. The electronic structure of Si3 and Ge3 in the local density functional approximation. Chem Phys Lett 1992. [DOI: 10.1016/0009-2614(92)80866-a] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
20
|
Tsumuraya T, Batcheller SA, Masamune S. Verbindungen mit SiSi-, GeGe- und SnSn-Doppelbindungen sowie gespannte Ringsysteme mit Si-, Ge- und Sn-Gerüsten. Angew Chem Int Ed Engl 1991. [DOI: 10.1002/ange.19911030805] [Citation(s) in RCA: 101] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
21
|
Auner N, Ziche W, West R. The wonderful world of organosilicon chemistry. HETEROATOM CHEMISTRY 1991. [DOI: 10.1002/hc.520020216] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
22
|
Igel-Mann G, Flad HJ, Feller C, Preuss H. Pseudopotential investigations on indium, tin and antimony compounds. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0166-1280(90)80085-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
23
|
St-Amant A, Salahub DR. New algorithm for the optimization of geometries in local density functional theory. Chem Phys Lett 1990. [DOI: 10.1016/0009-2614(90)87064-x] [Citation(s) in RCA: 524] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
24
|
Tandura SN, Gurkova SN, Gusev AI. Molecular structure of germylenes and their complexes. J STRUCT CHEM+ 1990. [DOI: 10.1007/bf00752702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
25
|
Knight LB, Winiski M, Kudelko P, Arrington CA. The generation and trapping of 28SiH+2 and 29SiH+2 in neon matrices at 4 K: Electron spin resonance and theoretical investigations. J Chem Phys 1989. [DOI: 10.1063/1.456911] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|