1
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Theoretical study of CO adsorption on FexCuy (x + y = 3) clusters and reactive activity of their carbonyl complexes. Theor Chem Acc 2022. [DOI: 10.1007/s00214-022-02918-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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2
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Duncan Lyngdoh RH, Schaefer HF, King RB. Metal-Metal (MM) Bond Distances and Bond Orders in Binuclear Metal Complexes of the First Row Transition Metals Titanium Through Zinc. Chem Rev 2018; 118:11626-11706. [PMID: 30543419 DOI: 10.1021/acs.chemrev.8b00297] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This survey of metal-metal (MM) bond distances in binuclear complexes of the first row 3d-block elements reviews experimental and computational research on a wide range of such systems. The metals surveyed are titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, and zinc, representing the only comprehensive presentation of such results to date. Factors impacting MM bond lengths that are discussed here include (a) the formal MM bond order, (b) size of the metal ion present in the bimetallic core (M2) n+, (c) the metal oxidation state, (d) effects of ligand basicity, coordination mode and number, and (e) steric effects of bulky ligands. Correlations between experimental and computational findings are examined wherever possible, often yielding good agreement for MM bond lengths. The formal bond order provides a key basis for assessing experimental and computationally derived MM bond lengths. The effects of change in the metal upon MM bond length ranges in binuclear complexes suggest trends for single, double, triple, and quadruple MM bonds which are related to the available information on metal atomic radii. It emerges that while specific factors for a limited range of complexes are found to have their expected impact in many cases, the assessment of the net effect of these factors is challenging. The combination of experimental and computational results leads us to propose for the first time the ranges and "best" estimates for MM bond distances of all types (Ti-Ti through Zn-Zn, single through quintuple).
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Affiliation(s)
| | - Henry F Schaefer
- Centre for Computational Quantum Chemistry , University of Georgia , Athens , Georgia 30602 , United States
| | - R Bruce King
- Centre for Computational Quantum Chemistry , University of Georgia , Athens , Georgia 30602 , United States
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3
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Structures and magnetic properties of 3D manganese(II)- and 2D pillar-layered copper(II)-organic framework derived from mixed carboxylate ligands. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.04.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Li F, Liu K, Fan S, Qin T, Xiong S, Wang J. Structure and Magnetic Properties of a 2D Paddle-wheel Dinuclear[Cu 2
] Cluster-based Polymer with 1,1-Cyclohexanediacetate Ligand. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Feng Li
- College of Chemistry and Chemical Engineering; Shangqiu Normal University; 298 Wenhua Road 476000 Shangqiu P. R. China
| | - Kai Liu
- College of Chemistry and Chemical Engineering; Shangqiu Normal University; 298 Wenhua Road 476000 Shangqiu P. R. China
| | - Shiwen Fan
- College of Chemistry and Chemical Engineering; Shangqiu Normal University; 298 Wenhua Road 476000 Shangqiu P. R. China
| | - Tingting Qin
- College of Chemistry and Chemical Engineering; Shangqiu Normal University; 298 Wenhua Road 476000 Shangqiu P. R. China
| | - Suhua Xiong
- College of Chemistry and Chemical Engineering; Shangqiu Normal University; 298 Wenhua Road 476000 Shangqiu P. R. China
| | - Jingjing Wang
- College of Chemistry and Chemical Engineering; Shangqiu Normal University; 298 Wenhua Road 476000 Shangqiu P. R. China
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5
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Xie H, Zou J, Yuan Q, Zhang J, Fan H, Jiang L. Photoelectron Velocity Map Imaging Spectroscopy of Heteronuclear Metal–Nickel Carbonyls MNi(CO) n − (M = Sc, Y; n = 2–6). Top Catal 2017. [DOI: 10.1007/s11244-017-0875-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Zou J, Xie H, Dai D, Tang Z, Jiang L. Sequential bonding of CO molecules to a titanium dimer: A photoelectron velocity-map imaging spectroscopic and theoretical study of Ti2(CO)n− (n = 1-9). J Chem Phys 2016; 145:184302. [DOI: 10.1063/1.4966261] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Jinghan Zou
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, Liaoning, People’s Republic of China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People’s Republic of China
| | - Hua Xie
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, Liaoning, People’s Republic of China
| | - Dongxu Dai
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, Liaoning, People’s Republic of China
| | - Zichao Tang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Ling Jiang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, Liaoning, People’s Republic of China
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7
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Liu Z, Zou J, Qin Z, Xie H, Fan H, Tang Z. Photoelectron Velocity Map Imaging Spectroscopy of Lead Tetracarbonyl-Iron Anion PbFe(CO)4(.). J Phys Chem A 2016; 120:3533-8. [PMID: 27152488 DOI: 10.1021/acs.jpca.6b02786] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Joint research of photoelectron velocity map imaging spectroscopy and density functional theory has been performed to probe the geometrical structures and electronic properties for heterodinuclear iron-lead carbonyl cluster PbFe(CO)4(-), which serves as a monomer of the metal-metal bonded oligomer. The photoelectron detachment of PbFe(CO)4(-) is recorded at two different photon energies with rich spectral features. The ground-state transition obtained at 532 nm reveals a broad vibrationally resolved spectral band, which corresponds to the lead-iron stretching, while the 355 nm spectrum displays many more transitions on the higher-energy side, which correspond to the electronic excited states of PbFe(CO)4. Theoretical calculations at the B3LYP level are performed to explore the ground states of both the anionic and neutral PbFe(CO)4 and to support spectral identification of the fine resolved photoelectron spectra. Moreover, the unique chemical bonding between lead and iron in PbFe(CO)4 is discussed with the aid of natural bond orbital analyses.
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Affiliation(s)
- Zhiling Liu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, P. R. China.,School of Chemistry & Material Science, Shanxi Normal University , Linfen 041004, P. R. China
| | - Jinghan Zou
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, P. R. China
| | - Zhengbo Qin
- Department of Physics, Anhui Normal University , Wuhu, Anhui 241000, P. R. China
| | - Hua Xie
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, P. R. China
| | - Hongjun Fan
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, P. R. China
| | - Zichao Tang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, P. R. China.,Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P. R. China
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8
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Xie H, Zou J, Yuan Q, Fan H, Tang Z, Jiang L. Photoelectron velocity-map imaging and theoretical studies of heteronuclear metal carbonyls MNi(CO)3− (M = Mg, Ca, Al). J Chem Phys 2016; 144:124303. [DOI: 10.1063/1.4944529] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hua Xie
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People’s Republic of China
| | - Jinghan Zou
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People’s Republic of China
| | - Qinqin Yuan
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People’s Republic of China
| | - Hongjun Fan
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People’s Republic of China
| | - Zichao Tang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People’s Republic of China
| | - Ling Jiang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People’s Republic of China
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9
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Adhikari S, Sahana A, Kumari B, Ganguly D, Das S, Banerjee PP, Banerjee G, Chattopadhyay A, Fondo M, Matalobos JS, Brandão P, Félix V, Das D. Molecular diversity in several pyridyl based Cu( ii) complexes: biophysical interaction and redox triggered fluorescence switch. NEW J CHEM 2016. [DOI: 10.1039/c6nj02381a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A novel approach for detection of intra-cellular Cu+inE. coliand human blood cells is reported. Studies on several pyridyl based Cu(ii) complexes and interaction of ct DNA with one of them are carried out for plausible application in biology concerning disruption of normal DNA activity.
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Affiliation(s)
| | - Animesh Sahana
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | - Babli Kumari
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | - Durba Ganguly
- Department of Chemistry
- Jadavpur University
- Kolkata-700032
- India
| | - Saurabh Das
- Department of Chemistry
- Jadavpur University
- Kolkata-700032
- India
| | | | - Gautam Banerjee
- Department of Zoology
- VisvaBharati University
- Santiniketan
- India
| | | | - Matilde Fondo
- Departamento de Quimica Inorganica
- Facultade de Quimica
- 15782 Santiago de Compostela
- Spain
| | | | - Paula Brandão
- Department of Chemistry
- CICECO – Aveiro Institute of Materials
- 3810-193 Aveiro
- Portugal
| | - Vítor Félix
- Department of Chemistry
- CICECO – Aveiro Institute of Materials
- 3810-193 Aveiro
- Portugal
- Department of Medical Sciences
| | - Debasis Das
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
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10
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Liu Z, Xie H, Qin Z, Fan H, Tang Z. Structural Evolution of Homoleptic Heterodinuclear Copper–Nickel Carbonyl Anions Revealed Using Photoelectron Velocity-Map Imaging. Inorg Chem 2014; 53:10909-16. [DOI: 10.1021/ic501070u] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhiling Liu
- State Key Laboratory of Molecular Reaction Dynamics,
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hua Xie
- State Key Laboratory of Molecular Reaction Dynamics,
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhengbo Qin
- State Key Laboratory of Molecular Reaction Dynamics,
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hongjun Fan
- State Key Laboratory of Molecular Reaction Dynamics,
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zichao Tang
- State Key Laboratory of Molecular Reaction Dynamics,
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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11
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Cui J, Zhou X, Wang G, Chi C, Liu Z, Zhou M. Infrared Photodissociation Spectroscopy of Mass Selected Homoleptic Copper Carbonyl Cluster Cations in the Gas Phase. J Phys Chem A 2013; 117:7810-7. [DOI: 10.1021/jp405250y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jieming Cui
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China
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12
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Zhou X, Cui J, Li ZH, Wang G, Zhou M. Infrared Photodissociation Spectroscopic and Theoretical Study of Homoleptic Dinuclear Chromium Carbonyl Cluster Cations with a Linear Bridging Carbonyl Group. J Phys Chem A 2012; 116:12349-56. [DOI: 10.1021/jp3108123] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaojie Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China
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13
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Brathwaite AD, Reed ZD, Duncan MA. Infrared Photodissociation Spectroscopy of Copper Carbonyl Cations. J Phys Chem A 2011; 115:10461-9. [DOI: 10.1021/jp206102z] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- A. D. Brathwaite
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Z. D. Reed
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - M. A. Duncan
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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14
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Copper formal oxidation states above +1 in organometallic chemistry: the possibility of synthesizing cyclopentadienylcopper chlorides by oxidative addition reactions. Theor Chem Acc 2011. [DOI: 10.1007/s00214-010-0878-4] [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]
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15
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Pang HJ, Zhang CJ, Peng J, Wang YH, Sha JQ, Tian AX, Zhang PP, Chen Y, Zhu M, Su ZM. Two New Helical Compounds Based on Pitch-Tunable Keggin Clusters. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900559] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Pang HJ, Sha JQ, Peng J, Tian AX, Zhang CJ, Zhang PP, Chen Y, Zhu M, Wang YH. An intertwined double chain constructed by [SiMo12O40]4− clusters and unusual [Cu2(DF)2H2O] dimers. INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Jiang L, Xu Q. Theoretical study of the interaction of carbon monoxide with 3d metal dimers. J Chem Phys 2008; 128:124317. [DOI: 10.1063/1.2842066] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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18
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Feng X, Gu J, Xie Y, King RB, Schaefer HF. Homoleptic Carbonyls of the Second-Row Transition Metals: Evaluation of Hartree−Fock and Density Functional Theory Methods. J Chem Theory Comput 2007; 3:1580-7. [PMID: 26633228 DOI: 10.1021/ct7000254] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xuejun Feng
- School of Chemical and Material Engineering, Southern Yangtze University, Wuxi 214122, P. R. China, Drug Design & Discovery Center, Shanghai Institute of Materia Medica, CAS, Shanghai 201203 P. R. China, and Center for Computational Chemistry and Department of Chemistry, University of Georgia, Athens, Georgia 30602
| | - Jiande Gu
- School of Chemical and Material Engineering, Southern Yangtze University, Wuxi 214122, P. R. China, Drug Design & Discovery Center, Shanghai Institute of Materia Medica, CAS, Shanghai 201203 P. R. China, and Center for Computational Chemistry and Department of Chemistry, University of Georgia, Athens, Georgia 30602
| | - Yaoming Xie
- School of Chemical and Material Engineering, Southern Yangtze University, Wuxi 214122, P. R. China, Drug Design & Discovery Center, Shanghai Institute of Materia Medica, CAS, Shanghai 201203 P. R. China, and Center for Computational Chemistry and Department of Chemistry, University of Georgia, Athens, Georgia 30602
| | - R. Bruce King
- School of Chemical and Material Engineering, Southern Yangtze University, Wuxi 214122, P. R. China, Drug Design & Discovery Center, Shanghai Institute of Materia Medica, CAS, Shanghai 201203 P. R. China, and Center for Computational Chemistry and Department of Chemistry, University of Georgia, Athens, Georgia 30602
| | - Henry F. Schaefer
- School of Chemical and Material Engineering, Southern Yangtze University, Wuxi 214122, P. R. China, Drug Design & Discovery Center, Shanghai Institute of Materia Medica, CAS, Shanghai 201203 P. R. China, and Center for Computational Chemistry and Department of Chemistry, University of Georgia, Athens, Georgia 30602
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19
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Li QS, Liu Z, Xie Y, Schaefer HF, King RB. Octacarbonyldivanadium: a highly unsaturated binuclear metal carbonyl. Mol Phys 2007. [DOI: 10.1080/00268970500417275] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Qian-Shu Li
- a Institute for Chemical Physics , Beijing Institute of Technology , Beijing 100081, P.R. China
| | - Zhaohui Liu
- b Department of Chemistry and Center for Computational Chemistry , University of Georgia , Athens, GA 30602, USA
| | - Yaoming Xie
- b Department of Chemistry and Center for Computational Chemistry , University of Georgia , Athens, GA 30602, USA
| | - Henry F. Schaefer
- b Department of Chemistry and Center for Computational Chemistry , University of Georgia , Athens, GA 30602, USA
| | - R. Bruce King
- b Department of Chemistry and Center for Computational Chemistry , University of Georgia , Athens, GA 30602, USA
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20
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Stanzel J, Aziz EF, Neeb M, Eberhardt W. Photoelectron Spectroscopy on Small Anionic Copper-Carbonyl Clusters. ACTA ACUST UNITED AC 2007. [DOI: 10.1135/cccc20070001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Anion photoelectron spectroscopy in combination with density functional theory (DFT) calculations has been used to study mono- and dinuclear copper-carbonyl clusters Cun(CO)m- (n = 1, 2; m = 2-5). The adiabatic detachment energies of the anions have been measured which correspond to the electron affinities of the respective neutral species. The corresponding values are 0.95 eV for Cu(CO)2, 1.02 eV for Cu(CO)3, 1.04 eV for Cu(CO)4, 1.43 eV for Cu2(CO)4, and 1.19 eV for Cu2(CO)5. All spectra exhibit a pronounced vibrational fine structure on the adiabatic photodetachment peak. The energy splitting is close to the energy of the C-O stretching vibration of the neutral cluster (final state). The DFT calculations clearly indicate that in all clusters the highest occupied molecular orbital (HOMO) is a CO-derived π* orbital. Furthermore the calculations are used to give insight into geometry, frontier orbitals, vibrational frequencies and spin multiplicity of the neutral and anionic clusters.
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21
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Wang H, Xie Y, King RB, Schaefer HF. Remarkable Aspects of Unsaturation in Trinuclear Metal Carbonyl Clusters: The Triiron Species Fe3(CO)n(n= 12, 11, 10, 9). J Am Chem Soc 2006; 128:11376-84. [PMID: 16939260 DOI: 10.1021/ja055223+] [Citation(s) in RCA: 175] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The trinuclear iron carbonyls Fe(3)(CO)(n) (n = 12, 11, 10, 9) have been studied by density functional theory using the B3LYP and BP86 functionals. The experimentally known C(2)(v) isomer of Fe(3)(CO)(12), namely Fe(3)(CO)(10)(mu-CO)(2), is found to be the global minimum below the unbridged D(3)(h) isomer analogous to the known structures for Ru(3)(CO)(12) and Os(3)(CO)(12). The lowest-energy isomer found for Fe(3)(CO)(11) is Fe(3)(CO)(9)(mu(3)-CO)(2) with iron-iron distances in the Fe(3) triangle, suggesting the one double bond (2.460 A by B3LYP and 2.450 A by BP86) and two single bonds (2.623 A by B3LYP and 2.604 A by BP86) required to give each Fe atom the favored 18-electron configuration. Two different higher-energy dibridged structures Fe(3)(CO)(9)(mu(2)-CO)(2) are also found for Fe(3)(CO)(11). The lowest-energy isomer found for Fe(3)(CO)(10) is Fe(3)(CO)(9)(mu(3)-CO) with equivalent iron-iron distances in the Fe(3) ring (2.47 A by B3LYP or BP86). The lowest-energy isomer found for Fe(3)(CO)(9) is Fe(3)(CO)(6)(mu-CO)(3) with distances in the Fe(3) triangle possibly suggesting one single bond (2.618 A by B3LYP and 2.601 A by BP86), one weak double bond (2.491 A by B3LYP and 2.473 A by BP86), and one weak triple bond (2.368 A by B3LYP and 2.343 A by BP86). A higher-lying isomer of Fe(3)(CO)(9), i.e., Fe(3)(CO)(8)(mu-CO), at approximately 21 kcal/mol above the global minimum, has iron-iron distances strongly suggesting two single bonds (2.6 to 2.7 A) and one quadruple bond (2.068 A by B3LYP and 2.103 A by BP86). Wiberg Bond Indices are also helpful in evaluating the iron-iron bond orders.
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Affiliation(s)
- Hongyan Wang
- Atomic and Molecular Physics Institute, Sichuan University, Chengdu 610065, PR China
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Xie Y, King RB, Schaefer HF. Vibrational frequencies of the homoleptic cobalt carbonyls: Co4(CO)12 and Co6(CO)16. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 61:1693-1699. [PMID: 15820904 DOI: 10.1016/j.saa.2004.12.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2004] [Accepted: 12/13/2004] [Indexed: 05/24/2023]
Abstract
The homoleptic cobalt carbonyls Co4(CO)12 and Co6(CO)16 are characterized by their equilibrium geometries, thermochemistry, and vibrational frequencies using density functional theory (DFT) methods with the B3LYP, BLYP, and BP86 functionals. The B3LYP predicted CoCo distances are 2.51 and 2.47 A for the C3v and Td structures, respectively, of Co4(CO)12. The global minimum for Co4(CO)12 has C3v symmetry with three bridging and nine terminal carbonyls. The 2.51 and 2.52 A CoCo distances suggest the single bond required for an 18-electron configuration for the metal atoms. This structure is close to an experimentally realized structure. A more symmetrical Co4(CO)12 structure with Td symmetry, analogous to that observed in the valence isoelectronic Ir4(CO)12 molecule, lies approximately 28 kcal/mol higher in energy and exhibits a small imaginary vibrational frequency ( approximately 40i). It has a slightly shorter CoCo distance of 2.47 A. Both Co4(CO)12 structures satisfy the 18-electron rule. The Co6(CO)16 structure has Td symmetry and satisfies the Wade-Mingos rules for an octahedral cluster. The nu(CO) carbonyl frequencies for both Co4(CO)12 and Co6(CO)16 computed with the BP86 functional are closer to the experimental values than those computed with the B3LYP and BLYP functionals. The structure of Co6(CO)16 is not known experimentally, but the BP86 functional predicts 2.56 A (CoCo), 1.77 and 2.02 A (CoC), and 1.66 and 1.20 A (CO) for the bond distances.
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Affiliation(s)
- Yaoming Xie
- Center for Computational Chemistry and Department of Chemistry, University of Georgia, Athens, GA 30602, USA
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23
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Xie Y, Jang JH, King RB, Schaefer HF. Binuclear homoleptic manganese carbonyls: Mn2(CO)x (x = 10, 9, 8, 7). Inorg Chem 2003; 42:5219-30. [PMID: 12924893 DOI: 10.1021/ic030118r] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The unsaturated homoleptic manganese carbonyls Mn(2)(CO)(n)() (n = 7, 8, 9) are characterized by their equilibrium geometries, thermochemistry, and vibrational frequencies using methods from density functional theory (DFT). The computed metal-metal distances for global minima range from 3.01 A for the unbridged Mn(2)(CO)(10) with a Mn-Mn single bond to 2.14 A for a monobridged Mn(2)(CO)(7) formulated with a metal-metal quadruple bond. The global minimum for Mn(2)(CO)(9) has a four-electron bridging mu-eta(2)-CO group and a 2.96 A Mn-Mn distance suggestive of the single bond required for 18-electron configurations for both metal atoms. This structure is closely related to an experimentally realized structure for the isolated and structurally characterized stable phosphine complex [R(2)PCH(2)PR(2)](2)Mn(2)(CO)(4)(mu-eta(2)-CO). An unbridged (OC)(4)Mn-Mn(CO)(5) structure for Mn(2)(CO)(9) has only slightly (<6 kcal/mol) higher energy with a somewhat shorter metal-metal distance of 2.77 A. For Mn(2)(CO)(8) the lowest energy structure is a D(2)(d)() unbridged structure with a 2.36 A metal-metal distance suggesting the triple bond required for the favored 18-electron configuration for both metal atoms. However, the unbridged unsymmetrical (CO)(3)Mn-Mn(CO)(5) structure with a metal-metal bond distance of 2.40 A lies only 1 to 3 kcal/mol above this global minimum. The lowest energy structure of Mn(2)(CO)(7) is an unbridged C(s)() structure with a short metal-metal distance of 2.26 A. This is followed energetically by another C(s)() unbridged Mn(2)(CO)(7) structure with a somewhat longer metal-metal distance of 2.38 A.
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Affiliation(s)
- Yaoming Xie
- Center for Computational Quantum Chemistry and Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
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