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Megha, Banerjee A, Ghanty TK. Adsorption and activation of CO2 molecule on subnanometer-sized anionic vanadium carbide clusters V C4− (n = 1–6): A theoretical study. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2
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Megha, Banerjee A, Ghanty TK. Role of metcar on the adsorption and activation of carbon dioxide: a DFT study. Phys Chem Chem Phys 2021; 23:5559-5570. [PMID: 33651070 DOI: 10.1039/d0cp05756h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metallocarbohedrenes or metcars belong to one of the classes of stable nanoclusters having a specific stoichiometry. In spite of the available theoretical and experimental studies, the structure of pristine Ti8C12 metcar is still uncertain. We study the geometric structure of a titanium metcar, Ti8C12, together with its electronic properties and chemical activity towards adsorption and activation of CO2 molecule by means of density functional theory. Our results suggest that the CO2 molecule is strongly adsorbed and undergoes a significantly high degree of activation onto the Ti8C12 metcar. The migration of charge from titanium metcar to CO2 molecule attributes the high degree of activation of this molecule. In the infrared vibrational spectra for CO2 molecule adsorbed onto Ti8C12, we find a new signal which is absent in the corresponding spectra for gaseous CO2. In addition to adsorption energy, we also estimate the energy barrier for the dissociation of CO2 molecule to CO and O fragments on a Ti8C12 cluster. As a whole, this work reveals the ground state geometry of Ti8C12 metcar and highlights the role of this metcar in CO2 adsorption and activation, which are the key steps in designing potential catalysts for CO2 capture and its conversion to industrially valuable chemicals.
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Affiliation(s)
- Megha
- Human Resources Development Section, Raja Ramanna Centre for Advanced Technology, Indore 452013, India and Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Arup Banerjee
- Human Resources Development Section, Raja Ramanna Centre for Advanced Technology, Indore 452013, India and Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Tapan K Ghanty
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India and Bio-Science Group, Bhabha Atomic Research Centre, Mumbai 400085, India.
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Sengupta T, Khan MS, Pal S. Mechanistic Investigation of the Carbon-Iodine Bond Activation on the Niobium-Carbon Cluster. ACS OMEGA 2017; 2:5335-5347. [PMID: 31457802 PMCID: PMC6644337 DOI: 10.1021/acsomega.7b00894] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/18/2017] [Indexed: 05/10/2023]
Abstract
The activation process of carbon-iodine (C-I) bond on neutral and cationic niobium metcars (Nb8C12) is investigated using density functional theory and related computational techniques. Metallocarbohedrenes or metcars are a class of stable metal-carbide clusters of specific stoichiometry and of great interest to cluster chemists since their first discovery. The detailed reaction mechanism along with the overall energy profile of the C-I dissociation reaction on niobium metcar and its cations is presented in this paper. The tunneling-corrected rate constants and their related reaction parameters such as the pre-exponential factor are also included alongside. The major differences between the reaction mechanism of the neutral and cationic metcars are also highlighted as well. Despite the available experimental results, the C-I bond dissociation on metcars has remained an unexplored problem in the theoretical and computational domains. Thus, the present investigation can fill in the gap and may also provide new insights provoking further developments in cluster and materials chemistry in future.
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Affiliation(s)
- Turbasu Sengupta
- Physical
Chemistry Division, CSIR National Chemical
Laboratory, Pune 411008, India
| | - Muntazir S. Khan
- Physical
Chemistry Division, CSIR National Chemical
Laboratory, Pune 411008, India
| | - Sourav Pal
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
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Yang LM, Ding YH, Sun CC. Theoretical Study on the Assembly and Stabilization of a Magic Cluster Al4N-. J Phys Chem A 2007; 111:10675-81. [PMID: 17914757 DOI: 10.1021/jp071054z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the first attempt to assemble the magic cluster Al4N- on the basis of the density functional theory calculations on a series of pi-stacked dimers (Al4N-)2, sandwich-like compounds [D(Al4N)M]q- (where D = Al4N-, Cp-(C5H5-); M = Li, Na, K, Be, Mg, Ca) and extended compounds (Cp-)m(Li+)n(Al4N-)o (where m, n, and o are integers). For the six metals, the magic Al4N- can only be assembled and grow up in our newly proposed "hetero-decked sandwich" scheme (e.g., [CpM(Al4N)]q-) so as to avoid cluster fusion. The ground-state hetero-decked sandwich species (Cp-)(M)q+(Al4N)- (M = Li, Na, K, q = 1; M = Be, Mg, Ca, q = 2) and the extended sandwich species (Cp-)m(Li+)n(Al4N-)o are mainly ionically bonded, cluster-assembled "polyatomic molecules", grown from the combination of Cp-, M-atoms, and Al4N-. As a prototype for ionic bonding involving intact Al4N- subunits, [CpM(Al4N)]q- may be a stepping stone toward forming ionic, cluster-assembled AlN compounds.
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Affiliation(s)
- Li-Ming Yang
- State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China
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Liu P, Lightstone JM, Patterson MJ, Rodriguez JA, Muckerman JT, White MG. Gas-phase Interaction of Thiophene with the Ti8C12+ and Ti8C12 Met-Car Clusters. J Phys Chem B 2006; 110:7449-55. [PMID: 16599524 DOI: 10.1021/jp060340s] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reactivity of the Ti(8)C(12)(+) met-car cation toward thiophene was investigated using density functional theory (DFT) and mass selective ion chemistry. It is shown that the experimentally observed mass spectrum can be well described by the DFT calculations. In contrast to the weak bonding interactions seen for thiophene on a TiC(001) surface, the Ti(8)C(12)(+) met-car cation is able to interact strongly with up to four thiophene molecules with the cluster staying intact. In the most stable conformation, the thiophene molecules bond to the four low-coordinated Ti(0) sites of Ti(8)C(12)(+) via a eta(5)-C,S coordination. The stability and the activity of the Ti(8)C(12)(+) met-car is observed to increase with an increasing number of attached thiophene molecules at the Ti(0) sites, which is associated with a significant transfer of electron density from thiophene to the cluster. The additional electron density on the Ti(8)C(12)(+) cation cluster, however, is not sufficient to cleave the C-S bonds of thiophene and the dissociation reaction of thiophene is predicted to be a highly activated process. By contrast, DFT calculations for the neutral Ti(8)C(12) met-car predict that the dissociation reaction leading to adsorbed S and C(4)H(4) fragments is energetically favorable for the first thiophene molecule. The binding behavior for subsequent addition of thiophene molecules to the neutral met-car is also presented and compared to that of the cation.
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Affiliation(s)
- Ping Liu
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
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Lightstone JM, Patterson MJ, Liu P, White MG. Gas-Phase Reactivity of the Ti8C12+ Met-car with Triatomic Sulfur-Containing Molecules: CS2, SCO, and SO2. J Phys Chem A 2006; 110:3505-13. [PMID: 16526629 DOI: 10.1021/jp057277b] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Gas-phase Ti(x)C(y)+ clusters (x/y = 3/5, 4/7, 5/9, 6/9, 7/12, 8/12, 9/12) including the magic Ti8C12+ (met-car) have been produced by reactive sputtering with a magnetron cluster source. The gas-phase reactivity of the met-car with SCO, CS2, and SO2 was investigated in a hexapole collision cell by way of tandem mass spectrometry. Results indicate an increase in activity as the oxygen-to-sulfur ratio increases (SO2 > SCO > CS2) with products ranging from association to break down of the met-car cluster. Trends in the mass spectra also indicate SCO and CS2 may bond to the met-car in a unique way not observed in previous reactivity studies on Ti8C12+. To investigate this, several possible single molecule-cluster bonding configurations were calculated with density functional theory. The results indicate that bridge bonding of the intact molecules is energetically preferred. In addition, the energy barriers and transition states leading to dissociation products were calculated and the trends are found to be in qualitative agreement with experiment. The effects of the different types of bonding and number of adsorbed species on the reactivity of the met-car along with proposed reaction mechanisms for product formation are also discussed.
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Affiliation(s)
- James M Lightstone
- Department of Chemistry, SUNY Stony Brook, Stony Brook, New York 11794, USA
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Affiliation(s)
- T E Dermota
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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Hou H, Muckerman JT, Liu P, Rodriguez JA. Computational Study of the Geometry and Properties of the Metcars Ti8C12 and Mo8C12. J Phys Chem A 2003. [DOI: 10.1021/jp0357976] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hua Hou
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000
| | - James T. Muckerman
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000
| | - Ping Liu
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000
| | - José A. Rodriguez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000
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Teo BK, Strizhev A. Assessment of relative stabilities of positional isomers of polyhedral heteronuclear clusters via a simplified method of bond energy calculations based on tight-binding approach and adjacent matrix method: applications to binary icosahedral clusters. Inorg Chem 2002; 41:6332-42. [PMID: 12444776 DOI: 10.1021/ic020325b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new and simple method for assessing the relative stabilities of various positional isomers of a given heteronuclear cluster is described. The method is based on a tight-binding approach in conjunction with an adjacent matrix methodology (TBAM). The usefulness of the method is illustrated by bond energy calculations of a number of binary icosahedral clusters, including noncentered icosahedral A(n)B(12)(-)n clusters comprising main-group elements B, C, N, and S as well as B- and A-centered icosahedral A(n)B(13)(-)n clusters that consist of transition metals, Au, Ag, Ni, and Pt atoms. The latter results are compared with the previously reported molecular mechanics calculations based on Lennard-Jones potential and with experimental results, whenever possible. The trends of the total bond energies obtained by the two methods are nearly parallel in all cases, indicating that the relative stabilities predicted by the two methods follow the same order. The TBAM approach provides a simple and efficient way of predicting the relative stabilities of various positional isomers of a given cluster, particularly for clusters where the number of positional isomers is so large that it cannot be handled manually. The total bond energies exhibit a stepwise progression. Each step is characterized by a set of A-A, B-B, and A-B bonds which uniquely determines the total bond energy and, hence, the stability. The step formation implies that positional isomers of a given cluster geometry can be categorized by sets of numbers of A-A, B-B, and A-B bonds, or simply the numbers of the minority (either A-A or B-B) bonds. Three site preference rules, the strong-bond rule, the heterobond rule, and the big-hole rule, were formulated based on these model calculations. These rules are useful in rationalizing and/or predicting the relative stabilities of various positional isomers of a given cluster geometry.
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Affiliation(s)
- Boon K Teo
- University of Illinois at Chicago, Department of Chemistry, 845 West Taylor Avenue, Room 4500, Chicago, Illinois 60607, USA.
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11
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van Heijnsbergen D, Fielicke A, Meijer G, von Helden G. Structure determination of gas-phase niobium and tantalum carbide nanocrystals via infrared spectroscopy. PHYSICAL REVIEW LETTERS 2002; 89:013401. [PMID: 12097042 DOI: 10.1103/physrevlett.89.013401] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2002] [Indexed: 05/23/2023]
Abstract
Niobium and tantalum carbide clusters have been isolated in the gas phase and irradiated with intense tunable infrared (IR) light. Stable neutral clusters are selectively ionized and subsequently detected in a mass spectrometer. By tuning the IR frequency, infrared multiphoton absorption spectra are obtained for a whole range of clusters. These mass-selective IR spectra lead to insights into the structures of small niobium and tantalum carbide clusters and nanocrystals.
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Affiliation(s)
- Deniz van Heijnsbergen
- FOM Institute for Plasma Physics Rijnhuizen, Edisonbaan 14, NL-3439 MN Nieuwegein, The Netherlands
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12
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Kesanli B, Fettinger J, Gardner DR, Eichhorn B. The [Sn(9)Pt(2)(PPh(3))](2)(-) and [Sn(9)Ni(2)(CO)](3)(-) complexes: two markedly different Sn(9)M(2)L transition metal zintl ion clusters and their dynamic behavior. J Am Chem Soc 2002; 124:4779-86. [PMID: 11971727 DOI: 10.1021/ja012528p] [Citation(s) in RCA: 116] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[Sn(9)Pt(2)(PPh(3))](2)(-) (2) was prepared from Pt(PPh(3))(4), K(4)Sn(9), and 2,2,2-cryptand in en/toluene solvent mixtures. The [K(2,2,2-cryptand)](+) salt is very air and moisture sensitive and has been characterized by ESI-MS, variable-temperature (119)Sn, (31)P, and (195)Pt NMR and single-crystal X-ray diffraction studies. The structure of 2 comprises an elongated tricapped Sn(9) trigonal prism with a capping PtPPh(3), an interstitial Pt atom, a hypercloso electron count (10 vertex, 20 electron) and C(3)(v)() point symmetry. Hydrogenation trapping experiments and deuterium labeling studies showed that the formation of 2 involves a double C-H activation of solvent molecules (en or DMSO) with the elimination of H(2) gas. The ESI-MS analysis of 2 showed the K[Sn(9)Pt(2)(PPh(3))](1)(-) parent ion, an oxidized [Sn(9)Pt(2)(PPh(3))](1)(-) ion, and the protonated binary cluster anion [HSn(9)Pt(2)](1)(-). 2 is highly fluxional in solution giving rise to a single time-averaged (119)Sn NMR signal for all nine Sn atoms but the Pt atoms remain distinct. The exchange is intramolecular and is consistent with a rigid, linear Pt-Pt-PPh(3) rod embedded in a liquidlike Sn(9) matrix. [Sn(9)Ni(2)(CO)](3)(-) (3) was prepared from Ni(CO)(2)(PPh(3))(2), K(4)Sn(9), and 2,2,2-cryptand in en/toluene solvent mixtures. The [K(2,2,2-cryptand)](+) salt is very air and moisture sensitive, is paramagnetic, and has been characterized by ESI-MS, EPR, and single-crystal X-ray diffraction. Complex 3 is a 10-vertex 21-electron polyhedron, a slightly distorted closo-Sn(9)Ni cluster with an additional interstitial Ni atom and overall C(4)(v)() point symmetry. The EPR spectrum showed a five-line pattern due to 4.8-G hyperfine interactions involving all nine tin atoms. The ESI-MS analysis showed weak signals for the potassium complex [K(2)Sn(9)Ni(2)(CO)](1-) and the ligand-free binary ions [K(2)Sn(9)Ni(2)](1)(-), [KSn(9)Ni(2)](1)(-), and [HSn(9)Ni(2)](1)(-).
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Affiliation(s)
- Banu Kesanli
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
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Ivanovskii AL, Sofronov AA, Makurin YN. Quantum-chemical simulation of the interaction between the Ti8C12 metallocarbohedrene and the CHCl3 molecule. MENDELEEV COMMUNICATIONS 2001. [DOI: 10.1070/mc2001v011n02abeh001340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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King RB. Chemical applications of topology and group theory. 34. Structure and bonding in titanocarbohedrene cages. Inorg Chem 2000; 39:2906-8. [PMID: 11232831 DOI: 10.1021/ic991151+] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chemical bonding models are developed for the titanocarbohedrenes Ti14C13 and Ti8C12 by assuming that the Ti atoms use a six-orbital sd5 manifold and there is no direct Ti...Ti bonding. In the 3 x 3 x 3 cubic structure of Ti14C13, the 8 Ti atoms at the vertices of the cube are divided into two tetrahedral sets, one Ti(III) set and one Ti(IV) set, and the 6 Ti atoms at the midpoints of the cube faces exhibit square planar TiC4 coordination with two perpendicular three-center four-electron bonds. The energetically unfavorable Th dodecahedral structure for Ti8C12 has 8 equivalent Ti(III) atoms and C2(4-) units derived from the complete deprotonation of ethylene. In the more energetically favorable Td tetracapped tetrahedral structure for Ti8C12, the C2 units are formally dianions and the 8 Ti atoms are partitioned into inner tetrahedra (Ti(i)) bonded to the C2 units through three-center Ti-C2 bonds and outer tetrahedra (Ti degrees) bonded to the C2 units through two-center Ti-C bonds. The Ti atoms in one of the Ti4 tetrahedra are Ti(0) and those in the other Ti4 tetrahedron are Ti(III). Among the two such possibilities, the lower energy form has the (Ti0)o4(Ti(III))i4 configuration, corresponding to dicarbene C2 ligands with two unpaired electrons in the carbon-carbon pi-bonding similar to the multiple bond in triplet O2. This contrasts with the opposite (Ti(III)o4(Ti0)i4 configuration in the higher energy form of Th-Ti8C12, corresponding to ethynediyl ligands with full C...C triple bonds and unpaired electrons in the C sp hybrid orbitals for sigma-bonding to Ti.
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Affiliation(s)
- R B King
- Department of Chemistry, University of Georgia, Athens 30602, USA
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15
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Auberry KJ, Byun YG, Jacobson DB, Freiser BS. Kinetics of Metallocarbohedrenes: An FT-ICR Mass Spectrometry Study of the Association Reactions of Ti8C12+ with Polar and Nonpolar Molecules. J Phys Chem A 1999. [DOI: 10.1021/jp991806s] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ken J. Auberry
- H. C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, Indiana 47907
| | - Yong Gwan Byun
- H. C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, Indiana 47907
| | - Denley B. Jacobson
- H. C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, Indiana 47907
| | - Ben S. Freiser
- H. C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, Indiana 47907
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Ivanovskii AL, Sofronov AA, Makurin YN. Quantum chemical study of the electronic structure and nature of the chemical bond for crystal modifications of metastable titanium dicarbide. THEOR EXP CHEM+ 1999. [DOI: 10.1007/bf02511116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Cui M, Zhang H, Ge M, Feng J, Tian W, Sun C. An ab initio study of C40, C40+, C40H4, Nb+@C40, Nb+C39 and Nb+@C40H4 clusters. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)00716-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Sakurai H, Castleman AW. Adsorption of methane molecules on neutral titanium Met-Cars. J Chem Phys 1999. [DOI: 10.1063/1.479446] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Sakurai H, Castleman AW. Ionization Potentials for the Titanium, Zirconium, and the Mixed Metal Met-Cars. J Phys Chem A 1998. [DOI: 10.1021/jp983287j] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- H. Sakurai
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - A. W. Castleman
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
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21
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Balch AL, Olmstead MM. Reactions of Transition Metal Complexes with Fullerenes (C(60), C(70), etc.) and Related Materials. Chem Rev 1998; 98:2123-2166. [PMID: 11848962 DOI: 10.1021/cr960040e] [Citation(s) in RCA: 425] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alan L. Balch
- The Department of Chemistry, University of California, Davis, California 95616
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22
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King RB. Topological aspects of metals in carbon cages: Analogies with organometallic chemistry. Russ Chem Bull 1998. [DOI: 10.1007/bf02498149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Castleman A. The influence of solvation on ion-molecule reactions. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s1071-9687(98)80008-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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24
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Ge M, Feng J, Tian W, Li Z, Huang X, Sun C. Ab initio SCF calculations of Ti8C12(H2O)8 and Ti8C12(C2H4)4. Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(97)01219-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Muñoz J, Pujol C, Bo C, Poblet JM, Rohmer MM, Benard M. DFT Description of Binary Metal Met-Cars TixZryC12 (x + y = 8) and of Some Conformers of the M6C12, M7C12, and M8C13 Clusters (M = Ti, Zr). J Phys Chem A 1997. [DOI: 10.1021/jp971829b] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jordi Muñoz
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Pc. Imperial Tarraco 1, 43005-Tarragona, Spain, and Laboratoire de Chimie Quantique, UPR 139 du CNRS, Université Louis Pasteur, 4 rue B. Pascal, F-67000 Strasbourg, France
| | - Cinta Pujol
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Pc. Imperial Tarraco 1, 43005-Tarragona, Spain, and Laboratoire de Chimie Quantique, UPR 139 du CNRS, Université Louis Pasteur, 4 rue B. Pascal, F-67000 Strasbourg, France
| | - Carles Bo
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Pc. Imperial Tarraco 1, 43005-Tarragona, Spain, and Laboratoire de Chimie Quantique, UPR 139 du CNRS, Université Louis Pasteur, 4 rue B. Pascal, F-67000 Strasbourg, France
| | - Josep-M. Poblet
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Pc. Imperial Tarraco 1, 43005-Tarragona, Spain, and Laboratoire de Chimie Quantique, UPR 139 du CNRS, Université Louis Pasteur, 4 rue B. Pascal, F-67000 Strasbourg, France
| | - Marie-Madeleine Rohmer
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Pc. Imperial Tarraco 1, 43005-Tarragona, Spain, and Laboratoire de Chimie Quantique, UPR 139 du CNRS, Université Louis Pasteur, 4 rue B. Pascal, F-67000 Strasbourg, France
| | - Marc Benard
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Pc. Imperial Tarraco 1, 43005-Tarragona, Spain, and Laboratoire de Chimie Quantique, UPR 139 du CNRS, Université Louis Pasteur, 4 rue B. Pascal, F-67000 Strasbourg, France
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26
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Wang LS, Li S, Wu H. Photoelectron Spectroscopy and Electronic Structure of Met-Car Ti8C12. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp9630683] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lai-Sheng Wang
- Department of Physics, Washington State University, Richland, Washington 99352, and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MS K2-14, P.O. Box 999, Richland, Washington 99352
| | - San Li
- Department of Physics, Washington State University, Richland, Washington 99352, and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MS K2-14, P.O. Box 999, Richland, Washington 99352
| | - Hongbin Wu
- Department of Physics, Washington State University, Richland, Washington 99352, and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MS K2-14, P.O. Box 999, Richland, Washington 99352
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Kerns KP, Guo BC, Deng HT, Castleman AW. Collision-Induced Dissociation of Vanadium−Carbon Cluster Cations. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp961397p] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. P. Kerns
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - B. C. Guo
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - H. T. Deng
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - A. W. Castleman
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
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28
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Ab initio SCF and DFT models of met-car adducts: Ti8C12(L)n (L = Cl, NH3, CO, C6H6; n = 4, 8). Chem Phys Lett 1996. [DOI: 10.1016/0009-2614(96)00918-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Byun YG, Lee SA, Kan SZ, Freiser BS. Reactivities of Metallocarbohedrenes: Nb8C12+. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp961166i] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Y. G. Byun
- H. C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, Indiana 47907
| | - S. A. Lee
- H. C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, Indiana 47907
| | - S. Z. Kan
- H. C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, Indiana 47907
| | - Ben S. Freiser
- H. C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, Indiana 47907
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30
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Castleman AW, Bowen KH. Clusters: Structure, Energetics, and Dynamics of Intermediate States of Matter. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp961030k] [Citation(s) in RCA: 603] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. W. Castleman
- Department of Chemistry, Pennsylvania State University, 152 Davey Laboratory, University Park, Pennsylvania 16802
| | - K. H. Bowen
- Department of Chemistry, The Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218
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31
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Poblet JM, Rohmer MM, Bénard M. Why Are [Cu(8)Te(12)](4)(-) Cage Clusters and Metallocarbohedrenes M(8)C(12) Topologically Different? An ab Initio SCF Study. Inorg Chem 1996; 35:4073-4075. [PMID: 11666608 DOI: 10.1021/ic960085y] [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)
- Josep-M. Poblet
- Departament de Quimica, Universitat Rovira i Virgili, Pc. Imperial Tarraco 1, 43005-Tarragona, Spain, and Laboratoire de Chimie Quantique, UPR 139 du CNRS, Université Louis Pasteur, 4 rue B. Pascal, F-67000 Strasbourg, France
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32
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Byun YG, Freiser BS. Reactivities of Metallo−Carbohedrenes: Evidence That V8C12+ Has Td or D2d Symmetry. J Am Chem Soc 1996. [DOI: 10.1021/ja952787c] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Y. G. Byun
- Contribution from the H. C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, Indiana 47907
| | - Ben S. Freiser
- Contribution from the H. C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, Indiana 47907
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33
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Deng HT, Kerns KP, Castleman AW. The oxidation induced formation of metallocarbohedrene ions. J Chem Phys 1996. [DOI: 10.1063/1.471181] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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