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Li H, Tsegaw YA, Andrews L, Trindle C, Cho HG, Stüker T, Beckers H, Riedel S. Cyanides, Isocyanides, and Hydrides of Zn, Cd and Hg from Metal Atom and HCN Reactions: Matrix Infrared Spectra and Electronic Structure Calculations. Chemphyschem 2021; 22:1914-1934. [PMID: 34390101 PMCID: PMC8518711 DOI: 10.1002/cphc.202100011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 05/14/2021] [Indexed: 11/07/2022]
Abstract
Zinc and cadmium atoms from laser ablation of the metals and mercury atoms ablated from a dental amalgam target react with HCN in excess argon during deposition at 5 K to form the MCN and MNC molecules and CN radicals. UV irradiation decreases the higher energy ZnNC isomer in favor of the lower energy ZnCN product. Cadmium and mercury atoms produce analogous MCN primary molecules. Laser ablation of metals also produces plume radiation which initiates H‐atom detachment from HCN. The freed H atom can add to CN radical to produce the HNC isomer. The argon matrix also traps the higher energy but more intensely absorbing isocyanide molecules. Further reactions with H atoms generate HMCN and HMNC hydrides, which can be observed by virtue of their C−N stretches and intense M−H stretches. Computational modeling of IR spectra and relative energies guides the identification of reaction products by providing generally reliable frequency differences within the Zn, Cd and Hg family of products, and estimating isotopic shifts using to 13C and 15N isotopic substitution for comparison with experimental data.
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Affiliation(s)
- Hongmin Li
- Institut fur Chemie und Biochemie, Freie Universitat Berlin, Fabeckstr. 34-36, 14195, Berlin, Germany
| | - Yetsedaw A Tsegaw
- Institut fur Chemie und Biochemie, Freie Universitat Berlin, Fabeckstr. 34-36, 14195, Berlin, Germany
| | - Lester Andrews
- Department of Chemistry, University of Virginia, 22904, Charlottesville, Virginia, USA
| | - Carl Trindle
- Department of Chemistry, University of Virginia, 22904, Charlottesville, Virginia, USA
| | - Han-Gook Cho
- Department of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, 22012, Incheon, South Korea
| | - Tony Stüker
- Institut fur Chemie und Biochemie, Freie Universitat Berlin, Fabeckstr. 34-36, 14195, Berlin, Germany
| | - Helmut Beckers
- Institut fur Chemie und Biochemie, Freie Universitat Berlin, Fabeckstr. 34-36, 14195, Berlin, Germany
| | - Sebastian Riedel
- Institut fur Chemie und Biochemie, Freie Universitat Berlin, Fabeckstr. 34-36, 14195, Berlin, Germany
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Andrews L, Cho H. Cyanides and Isocyanides of Zinc, Cadmium and Mercury: Matrix Infrared Spectra and Electronic Structure Calculations for the Linear MNC, NCMCN, CNMNC, NCMMCN, and CNMMNC Molecules. Chemphyschem 2020; 22:204-220. [DOI: 10.1002/cphc.202000193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 07/03/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Lester Andrews
- Department of Chemistry University of Virginia Charlottesville Virginia 22904 USA
| | - Han‐Gook Cho
- Department of Chemistry Incheon National University 119 Academy-ro Yeonsu-gu, Incheon 22012 South Korea
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3
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Burton MA, Cheng Q, Halfen DT, Lane JH, DeYonker NJ, Ziurys LM. The structure of ScC 2 (X̃ 2A 1): A combined Fourier transform microwave/millimeter-wave spectroscopic and computational study. J Chem Phys 2020; 153:034304. [PMID: 32716169 DOI: 10.1063/5.0008746] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Pure rotational spectra of Sc13C2 (X̃2A1) and Sc12C13C (X̃2A') have been measured using Fourier transform microwave/millimeter-wave methods. These molecules were synthesized in a DC discharge from the reaction of scandium vapor, produced via laser ablation, with 13CH4 or 13CH4/12CH4, diluted in argon. The NKa,Kc = 10,1 → 00,0, 20,2 → 10,1, 30,3 → 20,2, and 40,4 → 30,3 transitions in the frequency range of 14 GHz-61 GHz were observed for both species, each exhibiting hyperfine splittings due to the nuclear spins of 13C (I = 1/2) and/or Sc (I = 7/2). These data have been analyzed with an asymmetric top Hamiltonian, and rotational, spin-rotation, and hyperfine parameters have been determined for Sc13C2 and Sc12C13C. In addition, a quartic force field was calculated for ScC2 and its isotopologues using a highly accurate coupled cluster-based composite method, incorporating complete basis set extrapolation, scalar relativistic corrections, outer core and inner core electron correlation, and higher-order valence correlation effects. The agreement between experimental and computed rotational constants, including the effective constant (B + C), is ∼0.5% for all three isotopologues. This remarkable agreement suggests promise in predicting rotational spectra of new transition metal-carbon bearing molecules. In combination with previous work on Sc12C2, an accurate structure for ScC2 has been established using combined experimental (B, C) and theoretical (A) rotational constants. The radical is cyclic (or T-shaped) with r(Sc-C) = 2.048(2) Å, r(C-C) = 1.272(2) Å, and ∠(C-Sc-C) = 36.2(1)°. The experimental and theoretical results also suggest that ScC2 contains a C2 - moiety and is largely ionic.
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Affiliation(s)
- M A Burton
- Department of Chemistry and Biochemistry, Department of Astronomy, Steward Observatory, University of Arizona, 1305 E. 4th Street, Tucson, Arizona 85719, USA
| | - Q Cheng
- Department of Chemistry, University of Memphis, Memphis, Tennessee 38152, USA
| | - D T Halfen
- Department of Chemistry and Biochemistry, Department of Astronomy, Steward Observatory, University of Arizona, 1305 E. 4th Street, Tucson, Arizona 85719, USA
| | - J H Lane
- Department of Chemistry and Biochemistry, Department of Astronomy, Steward Observatory, University of Arizona, 1305 E. 4th Street, Tucson, Arizona 85719, USA
| | - N J DeYonker
- Department of Chemistry, University of Memphis, Memphis, Tennessee 38152, USA
| | - L M Ziurys
- Department of Chemistry and Biochemistry, Department of Astronomy, Steward Observatory, University of Arizona, 1305 E. 4th Street, Tucson, Arizona 85719, USA
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Formation of Short Zn−Zn Bonds Stabilized by Simple Cyanide and Isocyanide Ligands. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201914153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Andrews L, Cho HG. Formation of Short Zn-Zn Bonds Stabilized by Simple Cyanide and Isocyanide Ligands. Angew Chem Int Ed Engl 2019; 59:2496-2504. [PMID: 31802605 DOI: 10.1002/anie.201914153] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Indexed: 11/08/2022]
Abstract
Cyanogen diluted in argon was reacted with laser ablated Zn atoms to produce the NCZnCN and NCZnZnCN cyanides and higher energy isocyanides ZnNC, CNZnNC, and CNZnZnNC, which were isolated in excess argon at 4 K. These reaction products, identified from the matrix infrared spectra of their -CN and -NC chromophore ligand stretching modes, were confirmed by 13 C and 15 N isotopic substitution and comparison with frequencies calculated by the B3LYP and CCSD(T) methods using the all electron aug-cc-pVTZ basis sets. The cyanide and isocyanide products were increased markedly by mercury arc UV photolysis, which covers the zinc atomic absorption. The above electronic structure calculations that produce appropriate ligand frequencies for these dizinc products also provide their Zn-Zn bond lengths: CCSD(T) calculations find a short 2.367 Å Zn-Zn bond in the NCZnZnCN cyanide, a shorter 2.347 Å Zn-Zn bond in the 37.4 kJ mol-1 higher energy isocyanide CNZnZnNC, and a longer 4.024 Å bond in the dizinc van der Waals dimer. Thus, the diatomic cyanide (-CN) and isocyanide (-NC) ligands are as capable of stabilizing the Zn-Zn bond as many much larger ligands based on their measured and our calculated Zn-Zn bond lengths. This is the first example of dizinc complexes stabilized by different ligand isomers. Additional weaker bands in this region can be assigned to the analogous trizinc molecules NCZnZnZnCN and CNZnZnZnNC.
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Affiliation(s)
- Lester Andrews
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22904, USA
| | - Han-Gook Cho
- Department of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon, 22012, South Korea
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Sun YW, Wang HY, Ding YH. Predicting viable isomers of [X,C,N] and [H,X,C,N] (X = Sn, Pb). RSC Adv 2019; 9:40772-40780. [PMID: 35542652 PMCID: PMC9076368 DOI: 10.1039/c9ra08943h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/01/2019] [Indexed: 11/21/2022] Open
Abstract
Metal cyanide/isocyanide and hydrometal cyanide/isocyanide compounds are key metal-carriers in interstellar space. Lighter group 14 elements (X = C/Si/Ge) cyanides/isocyanides and hydrocyanides/hydroisocyanides have been studied theoretically and experimentally. However, no reports are available on the analogues of tin (Sn) and lead (Pb). In this work, we carried out the first theoretical study on the structures and stabilities of [X,C,N] and [H,X,C,N] (X = Sn/Pb) at the CCSD(T)/def2-QZVPP//B3LYP/def2-QZVPP level. Comparisons were made with the lower analogues (X = C/Si/Ge) concerning the structural, energetic and bonding properties. Significantly different from that of c-C2N, a dative-bonded valence structure of c-XCN for heavier X was revealed for the first time, which can account for the rather worse kinetic stability of cyclic [X,C,N] for heavier X = Si/Ge. A unique kind of agostic bonding was found within three isomers of [H,Pb,C,N], whereas it is absent for X = C/Si/Ge/Sn. The computed structural and spectroscopic data could aid future laboratory and astrophysical detection of the [X,C,N] and [H,X,C,N] (X = Sn/Pb) isomers. Two new metal cyanide/isocyanide and hydrometal cyanide/isocyanide compounds of Sn and Pb were studied to assist their interstellar detection.![]()
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Affiliation(s)
- Yu-Wang Sun
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University Changchun 130023 P. R. China
| | - Hai-Yan Wang
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University Changchun 130023 P. R. China .,College of Computer Science and Technology, Changchun University Changchun 130023 P. R. China
| | - Yi-Hong Ding
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University Changchun 130023 P. R. China
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Halfen DT, Ziurys LM. The pure rotational spectrum of the T-shaped AlC 2 radical (X[combining tilde] 2A 1). Phys Chem Chem Phys 2018; 20:11047-11052. [PMID: 29610787 DOI: 10.1039/c7cp08613j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The pure rotational spectrum of the AlC2 radical (X[combining tilde]2A1) has been measured using Fourier transform microwave/millimeter-wave (FTMmmW) techniques in the frequency range 21-65 GHz. This study is the first high-resolution spectroscopic investigation of this molecule. AlC2 was created in a supersonic jet from the reaction of aluminum, generated by laser ablation, with a mixture of CH4 or HCCH, diluted in argon, in the presence of a DC discharge. Three transitions (NKa,Kc = 101 → 000, 202 → 101, and 303 → 202) were measured, each consisting of multiple fine/hyperfine components, resulting from the unpaired electron in the species and the aluminum-27 nuclear spin (I = 5/2). The data were analyzed using an asymmetric top Hamiltonian and rotational, fine structure, and hyperfine constants determined. These parameters agree well with those derived from previous theoretical calculations and optical spectra. An r0 structure of AlC2 was determined with r(Al-C) = 1.924 Å, r(C-C) = 1.260 Å, and θ(C-Al-C) = 38.2°. The Al-C bond was found to be significantly shorter than in other small, Al-bearing species. The Fermi contact term established in this work indicates that the unpaired electron in the valence orbital has considerable 3pza1 character, suggesting polarization towards the C2 moiety. A high degree of ionic character in the molecule is also evident from the quadrupole coupling constant. These results are consistent with a T-shaped geometry and an Al+C2- bonding scheme. AlC2 is a possible interstellar molecule that may be present in the circumstellar envelopes of carbon-rich AGB stars.
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Affiliation(s)
- D T Halfen
- Department of Chemistry and Biochemistry, Department of Astronomy, and Steward Observatory, University of Arizona, 1305 E. 4th Street, Tucson, AZ 85719, USA.
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Bucchino MP, Adande GR, Halfen DT, Ziurys LM. Examining transition metal hydrosulfides: The pure rotational spectrum of ZnSH (X̃ 2A'). J Chem Phys 2017; 147:154313. [PMID: 29055338 DOI: 10.1063/1.4999924] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The pure rotational spectrum of the ZnSH (X̃2A') radical has been measured using millimeter-wave direct absorption and Fourier transform microwave (FTMW) methods across the frequency range 18-468 GHz. This work is the first gas-phase detection of ZnSH by any spectroscopic technique. Spectra of the 66ZnSH, 68ZnSH, and 64ZnSD isotopologues were also recorded. In the mm-wave study, ZnSH was synthesized in a DC discharge by the reaction of zinc vapor, generated by a Broida-type oven, with H2S; for FTMW measurements, the radical was made in a supersonic jet expansion by the same reactants but utilizing a discharge-assisted laser ablation source. Between 7 and 9 rotational transitions were recorded for each isotopologue. Asymmetry components with Ka = 0 through 6 were typically measured in the mm-wave region, each split into spin-rotation doublets. In the FTMW spectra, hyperfine interactions were also resolved, arising from the hydrogen or deuterium nuclear spins of I = 1/2 or I = 1, respectively. The data were analyzed using an asymmetric top Hamiltonian, and rotational, spin-rotation, and magnetic hyperfine parameters were determined for ZnSH, as well as the quadrupole coupling constant for ZnSD. The observed spectra clearly indicate that ZnSH has a bent geometry. The rm(1) structure was determined to be rZn-S = 2.213(5) Å, rS-H = 1.351(3) Å, and θZn-S-H = 90.6(1)°, suggesting that the bonding occurs primarily through sulfur p orbitals, analogous to H2S. The hyperfine constants indicate that the unpaired electron in ZnSH primarily resides on the zinc nucleus.
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Affiliation(s)
- M P Bucchino
- Department of Chemistry and Biochemistry, Department of Astronomy, Arizona Radio Observatory, University of Arizona, Tucson, Arizona 85719, USA
| | - G R Adande
- Department of Chemistry and Biochemistry, Department of Astronomy, Arizona Radio Observatory, University of Arizona, Tucson, Arizona 85719, USA
| | - D T Halfen
- Department of Chemistry and Biochemistry, Department of Astronomy, Arizona Radio Observatory, University of Arizona, Tucson, Arizona 85719, USA
| | - L M Ziurys
- Department of Chemistry and Biochemistry, Department of Astronomy, Arizona Radio Observatory, University of Arizona, Tucson, Arizona 85719, USA
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Rotational spectroscopy of ClZnCH3 (X1A1): Gas-phase synthesis and characterization of a monomeric Grignard-type reagent. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.01.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Halfen DT, Ilyushin VV, Ziurys LM. INTERSTELLAR DETECTION OF METHYL ISOCYANATE CH
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NCO IN Sgr B2(N): A LINK FROM MOLECULAR CLOUDS TO COMETS. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/2041-8205/812/1/l5] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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Ziurys LM, Adande GR, Edwards JL, Schmidt DR, Halfen DT, Woolf NJ. Prebiotic chemical evolution in the astrophysical context. ORIGINS LIFE EVOL B 2015; 45:275-88. [PMID: 25894971 DOI: 10.1007/s11084-015-9431-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 01/18/2015] [Indexed: 11/24/2022]
Abstract
An ever increasing amount of molecular material is being discovered in the interstellar medium, associated with the birth and death of stars and planetary systems. Radio and millimeter-wave astronomical observations, made possible by high-resolution laboratory spectroscopy, uniquely trace the history of gas-phase molecules with biogenic elements. Using a combination of both disciplines, the full extent of the cycling of molecular matter, from circumstellar ejecta of dying stars - objects which expel large amounts of carbon - to nascent solar systems, has been investigated. Such stellar ejecta have been found to exhibit a rich and varied chemical content. Observations demonstrate that this molecular material is passed onto planetary nebulae, the final phase of stellar evolution. Here the star sheds almost its entire original mass, becoming an ultraviolet-emitting white dwarf. Molecules such as H2CO, HCN, HCO(+), and CCH are present in significant concentrations across the entire age span of such nebulae. These data suggest that gas-phase polyatomic, carbon-containing molecules survive the planetary nebula phase and subsequently are transported into the interstellar medium, seeding the chemistry of diffuse and then dense clouds. The extent of the chemical complexity in dense clouds is unknown, hindered by the high spectral line density. Organic species such as acetamide and methyl amine are present in such objects, and NH2CHO has a wide Galactic distribution. However, organophosphorus compounds have not yet been detected in dense clouds. Based on carbon and nitrogen isotope ratios, molecular material from the ISM appears to become incorporated into solar system planetesimals. It is therefore likely that interstellar synthesis influences prebiotic chemistry on planet surfaces.
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Affiliation(s)
- L M Ziurys
- Department of Chemistry, University of Arizona, 933 N. Cherry Avenue, Tucson, AZ, 85721-0065, USA,
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Redondo P, Largo A, Vega-Vega Á, Barrientos C. Structure and spectroscopic properties of neutral and cationic tetratomic [C,H,N,Zn] isomers: A theoretical study. J Chem Phys 2015; 142:184301. [PMID: 25978885 DOI: 10.1063/1.4919879] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The structure and spectroscopic parameters of the most relevant [C,H,N,Zn] isomers have been studied employing high-level quantum chemical methods. For each isomer, we provide predictions for their molecular structure, thermodynamic stabilities as well as vibrational and rotational spectroscopic parameters which could eventually help in their experimental detection. In addition, we have carried out a detailed study of the bonding situations by means of a topological analysis of the electron density in the framework of the Bader's quantum theory of atoms in molecules. The analysis of the relative stabilities and spectroscopic parameters suggests two linear isomers of the neutral [C,H,N,Zn] composition, namely, cyanidehydridezinc HZnCN ((1)Σ) and hydrideisocyanidezinc HZnNC ((1)Σ), as possible candidates for experimental detections. For the cationic [C,H,N,Zn](+) composition, the most stable isomers are the ion-molecule complexes arising from the direct interaction of the zinc cation with either the nitrogen or carbon atom of either hydrogen cyanide or hydrogen isocyanide, namely, HCNZn(+) ((2)Σ) and HCNZn(+) ((2)Σ).
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Affiliation(s)
- Pilar Redondo
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Antonio Largo
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Álvaro Vega-Vega
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Carmen Barrientos
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
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LI L, SUN M, LI XH, ZHAO ZW, MA HM, GAN HY, LIN ZH, SHI SC, Ziurys LM. Recent Advances on Rotational Spectroscopy and Microwave Spectroscopic Techniques. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1016/s1872-2040(14)60767-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Min J, Halfen D, Ziurys L. Fourier transform microwave/millimeter-wave spectroscopy of the ScC2 ( X̃2A1) radical: A model system for endohedral metallofullerenes. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.06.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Bucchino MP, Sheridan PM, Young JP, Binns MKL, Ewing DW, Ziurys LM. Trends in alkali metal hydrosulfides: a combined Fourier transform microwave/millimeter-wave spectroscopic study of KSH (X1A'). J Chem Phys 2013; 139:214307. [PMID: 24320380 DOI: 10.1063/1.4834656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The pure rotational spectrum of KSH (X(1)A') has been measured using millimeter-wave direct absorption and Fourier transform microwave (FTMW) techniques. This work is the first gas-phase experimental study of this molecule and includes spectroscopy of KSD as well. In the millimeter-wave system, KSH was synthesized in a DC discharge from a mixture of potassium vapor, H2S, and argon; a discharge-assisted laser ablation source, coupled with a supersonic jet expansion, was used to create the species in the FTMW instrument. Five and three rotational transitions in the range 3-57 GHz were recorded with the FTMW experiment for KSH and KSD, respectively, in the K(a) = 0 component; in these data, potassium quadrupole hyperfine structure was observed. Five to six transitions with K(a) = 0-5 were measured in the mm-wave region (260-300 GHz) for the two species. The presence of multiple asymmetry components in the mm-wave spectra indicates that KSH has a bent geometry, in analogy to other alkali hydrosulfides. The data were analyzed with an S-reduced asymmetric top Hamiltonian, and rotational, centrifugal distortion, and potassium electric quadrupole coupling constants were determined for both isotopolgues. The r0 geometry for KSH was calculated to be r(S-H) = 1.357(1) Å, r(K-S) = 2.806(1) Å, and θ(M-S-H) (°) = 95.0 (1). FTMW measurements were also carried out on LiSH and NaSH; metal electric quadrupole coupling constants were determined for comparison with KSH. In addition, ab initio computations of the structures and vibrational frequencies at the CCSD(T)/6-311++G(3df,2pd) and CCSD(T)/aug-cc-pVTZ levels of theory were performed for LiSH, NaSH, and KSH. Overall, experimental and computational data suggest that the metal-ligand bonding in KSH is a combination of electrostatic and covalent forces.
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Affiliation(s)
- M P Bucchino
- Department of Chemistry and Biochemistry, Department of Astronomy, and Steward Observatory, University of Arizona, Tucson, Arizona 85721, USA
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Sun M, Wang Y, Carey SJ, Mitchell EG, Bowman J, Kukolich SG. Calculations and measurements of the deuterium tunneling frequency in the propiolic acid-formic acid dimer and description of a newly constructed Fourier transform microwave spectrometer. J Chem Phys 2013; 139:084316. [DOI: 10.1063/1.4818529] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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17
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The Fourier transform microwave spectrum of YC2 () and its 13C isotopologues: Chemical insight into metal dicarbides. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2012.10.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Halfen DT, Sun M, Harris B, Ziurys LM. The microwave and millimeter spectrum of ZnCCH (X̃2Σ+): A new zinc-containing free radical. J Chem Phys 2012; 136:244310. [DOI: 10.1063/1.4729943] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Halfen DT, Sun M, Clouthier DJ, Ziurys LM. The microwave and millimeter rotational spectra of the PCN radical (X̃3Σ−). J Chem Phys 2012; 136:144312. [PMID: 22502523 DOI: 10.1063/1.3696893] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- D T Halfen
- Department of Chemistry, Arizona Radio Observatory and Steward Observatory, University of Arizona, Tucson AZ 85721, USA
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Bejjani M, Kinzer RE, Rittby CML, Graham WRM. Fourier transform infrared isotopic study of ZnC3: identification of the ν1(a') mode. J Chem Phys 2012; 136:114501. [PMID: 22443771 DOI: 10.1063/1.3692388] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
An isomer of ZnC(3) with bent structure in its (1)A(') electronic state has been detected in the products from the dual laser ablation of carbon and zinc rods that were trapped in solid Ar at ~12 K. Measurements of (13)C isotopic shifts have enabled the identification of the ν(1)(a(')) asymmetric carbon stretching fundamental at 1858.9 cm(-1). The experimental results are in good agreement with the predictions of DFT-B3LYP/6-311G(d) calculations that indicate a singlet bent isomer ground state structure with triplet linear and singlet cyclic isomers lying slightly higher in energy. This is the first optical detection of any isomer of ZnC(3).
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Affiliation(s)
- Micheline Bejjani
- Department of Physics and Astronomy, Texas Christian University, Fort Worth, Texas 76129, USA
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Zack LN, Sun M, Bucchino MP, Clouthier DJ, Ziurys LM. Gas-Phase Synthesis and Structure of Monomeric ZnOH: A Model Species for Metalloenzymes and Catalytic Surfaces. J Phys Chem A 2012; 116:1542-50. [DOI: 10.1021/jp209875a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Lindsay N. Zack
- Department
of Chemistry, Department
of Astronomy and Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721, United States
| | - Ming Sun
- Department
of Chemistry, Department
of Astronomy and Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721, United States
| | - Matthew P. Bucchino
- Department
of Chemistry, Department
of Astronomy and Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721, United States
| | - Dennis J. Clouthier
- Department of Chemistry, University of Kentucky, 125 Chemistry-Physics Building,
Lexington, Kentucky 40506, United States
| | - Lucy M. Ziurys
- Department
of Chemistry, Department
of Astronomy and Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721, United States
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Fourier-transform microwave spectroscopy of FeCN (X4Δ ): Confirmation of the quartet electronic ground state. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.08.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Walker NR, Tew DP, Harris SJ, Wheatley DE, Legon AC. Characterisation of H2S⋯CuCl and H2S⋯AgCl isolated in the gas phase: A rigidly pyramidal geometry at sulphur revealed by rotational spectroscopy and ab initio calculations. J Chem Phys 2011; 135:014307. [DOI: 10.1063/1.3598927] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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25
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Mikhailov VA, Roberts FJ, Stephens SL, Harris SJ, Tew DP, Harvey JN, Walker NR, Legon AC. Monohydrates of cuprous chloride and argentous chloride: H2O⋅⋅⋅CuCl and H2O⋅⋅⋅AgCl characterized by rotational spectroscopy and ab initio calculations. J Chem Phys 2011; 134:134305. [DOI: 10.1063/1.3561305] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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26
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Flory MA, Apponi AJ, Zack LN, Ziurys LM. Activation of Methane by Zinc: Gas-Phase Synthesis, Structure, and Bonding of HZnCH3. J Am Chem Soc 2010; 132:17186-92. [DOI: 10.1021/ja106121v] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Michael A. Flory
- Department of Chemistry, Department of Astronomy, and Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721, United States
| | - Aldo J. Apponi
- Department of Chemistry, Department of Astronomy, and Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721, United States
| | - Lindsay N. Zack
- Department of Chemistry, Department of Astronomy, and Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721, United States
| | - Lucy M. Ziurys
- Department of Chemistry, Department of Astronomy, and Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721, United States
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Sun M, Halfen DT, Min J, Harris B, Clouthier DJ, Ziurys LM. The rotational spectrum of CuCCH(X̃ Σ1+): A Fourier transform microwave discharge assisted laser ablation spectroscopy and millimeter/submillimeter study. J Chem Phys 2010; 133:174301. [DOI: 10.1063/1.3493690] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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28
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Sun M, Clouthier DJ, Ziurys LM. The Fourier transform microwave spectrum of the arsenic dicarbide radical (CCAs: X̃Π1∕22) and its C13 isotopologues. J Chem Phys 2009; 131:224317. [DOI: 10.1063/1.3267483] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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