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Hüppe HM, Iffland-Mühlhaus L, Heck J, Eilers M, Gildenast H, Schönfeld S, Dürrmann A, Hoffmann A, Weber B, Apfel UP, Herres-Pawlis S. Triflate vs Acetonitrile: Understanding the Iron(II)-Based Coordination Chemistry of Tri(quinolin-8-yl)amine. Inorg Chem 2023; 62:4435-4455. [PMID: 36888965 DOI: 10.1021/acs.inorgchem.2c03890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
In this study, a synthesis route of tri(quinolin-8-yl)amine (L), a recent member of the tetradentate tris(2-pyridylmethyl)amine (TPA) ligand family, is reported. With the neutral ligand L bound to an iron(II) center in κ4 mode, two cis-oriented coordination sites remain vacant. These can be occupied by coligands such as counterions and solvent molecules. How sensitive this equilibrium can be is most evident if both triflate anions and acetonitrile molecules are available. All three combinations─bis(triflato), bis(acetonitrile), and mixed coligand species─could be characterized by single-crystal X-ray diffraction (SCXRD), which is unique so far for this class of ligand. While at room temperature, the three compounds tend to crystallize concomitantly, the equilibrium can be shifted in favor of the bis(acetonitrile) species by lowering the crystallization temperature. Removed from their mother liquor, the latter is very sensitive to evaporation of the residual solvent, which was observed by powder X-ray diffraction (PXRD) and Mössbauer spectroscopy. The solution behavior of the triflate and acetonitrile species was studied in detail using time- and temperature-resolved UV/vis spectroscopy, Mössbauer spectroscopy of frozen solution, NMR spectroscopy, and magnetic susceptibility measurements. The results indicate a bis(acetonitrile) species in acetonitrile showing a temperature-dependent spin-switching behavior between high- and low-spin. In dichloromethane, the results reveal a high-spin bis(triflato) species. In pursuit of understanding the coordination environment equilibria of the [Fe(L)]2+ complex, a series of compounds with different coligands was prepared and analyzed with SCXRD. The crystal structures indicate that the spin state can be controlled by changing the coordination environment─all of the {N6}-coordinated complexes display geometries expected for low-spin species, while any other donor atom in the coligand position induces a shift to the high-spin state. This fundamental study sheds light on the coligand competition of triflate and acetonitrile, and the high number of crystal structures allows further insights into the influence of different coligands on the geometry and spin state of the complexes.
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Affiliation(s)
- Henrika M Hüppe
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany
| | - Linda Iffland-Mühlhaus
- Inorganic Chemistry I, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Joshua Heck
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany
| | - Maverick Eilers
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany
| | - Hans Gildenast
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany
| | - Sophie Schönfeld
- Department of Chemistry, Inorganic Chemistry IV, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Andreas Dürrmann
- Department of Chemistry, Inorganic Chemistry IV, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Alexander Hoffmann
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany
| | - Birgit Weber
- Department of Chemistry, Inorganic Chemistry IV, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Ulf-Peter Apfel
- Inorganic Chemistry I, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany.,Fraunhofer UMSICHT, Osterfelder Straße 3, 46047 Oberhausen, Germany
| | - Sonja Herres-Pawlis
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany
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Yang L, Oppenheim JJ, Dincă M. Strong magnetic exchange coupling in a radical-bridged trinuclear nickel complex. Dalton Trans 2022; 51:8583-8587. [PMID: 35612004 DOI: 10.1039/d2dt01337a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of 2,3,6,7,10,11-hexaaminotriphenylene hexahydrochloride (HATP·6HCl) and (TpPhNi)Cl (TpPh = tris(3,5-diphenyl-1-pyrazolyl)borate) produces the radical-bridged trinickel complex [(TpPhNi)3(HITP)] (HITP3-˙ = 2,3,6,7,10,11-hexaiminotriphenylene). Magnetic measurements and broken-symmetry density functional theory calculations reveal strong exchange coupling persisting at room temperature between HITP3-˙ and two of the three Ni2+ centers, a rare example of strong radical-mediated magnetic coupling in multimetallic complexes. These results demonstrate the potential of radical-bearing tritopic HITP ligands as building blocks for extended molecule-based magnetic materials.
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Affiliation(s)
- Luming Yang
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
| | - Julius J Oppenheim
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
| | - Mircea Dincă
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
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Beyer A, von Gernler MS, Pflock S, Türkoglu G, Müller L, Zahl A, Gieb K, Müller P, Drewello T, Burzlaff N. Alkali‐Metal‐Templated Self‐Assembly of Nickel(II) [12‐MC‐3] Metallacoronates Based on Bis(pyrazol‐1‐yl)acetato Ligands. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701400] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Andreas Beyer
- Department of Chemistry and Pharmacy University of Erlangen‐Nürnberg Egerlandstraße 1‐3 91058 Erlangen Germany
| | - Marc S. von Gernler
- Department of Chemistry and Pharmacy University of Erlangen‐Nürnberg Egerlandstraße 1‐3 91058 Erlangen Germany
| | - Stephan Pflock
- Department of Chemistry and Pharmacy University of Erlangen‐Nürnberg Egerlandstraße 1‐3 91058 Erlangen Germany
| | - Gazi Türkoglu
- Department of Chemistry and Pharmacy University of Erlangen‐Nürnberg Egerlandstraße 1‐3 91058 Erlangen Germany
| | - Lisa Müller
- Department of Chemistry and Pharmacy University of Erlangen‐Nürnberg Egerlandstraße 1‐3 91058 Erlangen Germany
| | - Achim Zahl
- Department of Chemistry and Pharmacy University of Erlangen‐Nürnberg Egerlandstraße 1‐3 91058 Erlangen Germany
| | - Klaus Gieb
- Physics Department University of Erlangen‐Nürnberg Erwin‐Rommel‐Str. 1 91058 Erlangen Germany
| | - Paul Müller
- Physics Department University of Erlangen‐Nürnberg Erwin‐Rommel‐Str. 1 91058 Erlangen Germany
| | - Thomas Drewello
- Department of Chemistry and Pharmacy University of Erlangen‐Nürnberg Egerlandstraße 1‐3 91058 Erlangen Germany
| | - Nicolai Burzlaff
- Department of Chemistry and Pharmacy University of Erlangen‐Nürnberg Egerlandstraße 1‐3 91058 Erlangen Germany
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Soma S, Van Stappen C, Kiss M, Szilagyi RK, Lehnert N, Fujisawa K. Distorted tetrahedral nickel-nitrosyl complexes: spectroscopic characterization and electronic structure. J Biol Inorg Chem 2016; 21:757-75. [DOI: 10.1007/s00775-016-1366-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 06/01/2016] [Indexed: 10/21/2022]
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Kruse CP, Deb T, Aboelenen AM, Anderson CM, Petersen JL, Jensen MP. Variable Borohydride Hapticity in Nickel(II) Scorpionate Complexes [(TpR,Me)Ni(ηn‐BH4)]: TpR,Me = hydrotris{3‐R‐5‐methyl‐1‐pyrazolyl}borate; R = Ph, n = 3 vs. R = Me, n = 4. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Colin P. Kruse
- Department of Chemistry and Biochemistry Ohio University 45701 Athens Ohio USA
| | - Tapash Deb
- Department of Chemistry and Biochemistry Ohio University 45701 Athens Ohio USA
| | - Ahmed M. Aboelenen
- Department of Chemistry and Biochemistry Ohio University 45701 Athens Ohio USA
| | - Caitlin M. Anderson
- Department of Chemistry and Biochemistry Ohio University 45701 Athens Ohio USA
| | - Jeffrey L. Petersen
- C. Eugene Bennett Department of Chemistry West Virginia University 26506 Morgantown West Virginia USA
| | - Michael P. Jensen
- Department of Chemistry and Biochemistry Ohio University 45701 Athens Ohio USA
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Juarez RA, Lee WT, Smith JM, Wang H. Computational evaluation of tris(carbene)borate donor properties in {NiNO}(10) complexes. Dalton Trans 2015; 43:14689-95. [PMID: 25142086 DOI: 10.1039/c4dt01426j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Electronic structure calculations are performed to characterise the structures, energies, and spectroscopic data for a series of four-coordinate tris(carbene)borate {NiNO}(10) complexes. There is excellent agreement between the computational and experimental results for known complexes, allowing for structure-function relationships to be delineated. Calculations that provide insights into the synthetic accessibility of nickel(iv) nitrides by oxygen atom abstraction from these complexes are also reported.
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Affiliation(s)
- Ruth A Juarez
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003, USA.
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Machonkin TE, Boshart MD, Schofield JA, Rodriguez MM, Grubel K, Rokhsana D, Brennessel WW, Holland PL. Structural and spectroscopic characterization of iron(II), cobalt(II), and nickel(II) ortho-dihalophenolate complexes: insights into metal-halogen secondary bonding. Inorg Chem 2014; 53:9837-48. [PMID: 25167329 DOI: 10.1021/ic501424e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal complexes incorporating the tris(3,5-diphenylpyrazolyl)borate ligand (Tp(Ph2)) and ortho-dihalophenolates were synthesized and characterized in order to explore metal-halogen secondary bonding in biorelevant model complexes. The complexes Tp(Ph2)ML were synthesized and structurally characterized, where M was Fe(II), Co(II), or Ni(II) and L was either 2,6-dichloro- or 2,6-dibromophenolate. All six complexes exhibited metal-halogen secondary bonds in the solid state, with distances ranging from 2.56 Å for the Tp(Ph2)Ni(2,6-dichlorophenolate) complex to 2.88 Å for the Tp(Ph2)Fe(2,6-dibromophenolate) complex. Variable temperature NMR spectra of the Tp(Ph2)Co(2,6-dichlorophenolate) and Tp(Ph2)Ni(2,6-dichlorophenolate) complexes showed that rotation of the phenolate, which requires loss of the secondary bond, has an activation barrier of ~30 and ~37 kJ/mol, respectively. Density functional theory calculations support the presence of a barrier for disruption of the metal-halogen interaction during rotation of the phenolate. On the other hand, calculations using the spectroscopically calibrated angular overlap method suggest essentially no contribution of the halogen to the ligand-field splitting. Overall, these results provide the first quantitative measure of the strength of a metal-halogen secondary bond and demonstrate that it is a weak noncovalent interaction comparable in strength to a hydrogen bond. These results provide insight into the origin of the specificity of the enzyme 2,6-dichlorohydroquinone 1,2-dioxygenase (PcpA), which is specific for ortho-dihalohydroquinone substrates and phenol inhibitors.
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Affiliation(s)
- Timothy E Machonkin
- Department of Chemistry, Whitman College , Walla Walla, Washington 99362, United States
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8
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Zhu RM, Hu L, Li YZ, Song Y, Zuo JL. Syntheses, crystal structures and properties of dinuclear hydrido-tris(3,5-diphenylpyrazol-1-yl)borate complexes with the S―S coupled and dimerized quinoxaline-2,3-dithiolate ligand. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.05.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Synthetic Models of Copper–Nitrosyl Species Proposed as Intermediates in Biological Denitrification. STRUCTURE AND BONDING 2013. [DOI: 10.1007/430_2013_93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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10
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Muñoz SB, Foster WK, Lin HJ, Margarit CG, Dickie DA, Smith JM. Tris(carbene)borate ligands featuring imidazole-2-ylidene, benzimidazol-2-ylidene, and 1,3,4-triazol-2-ylidene donors. Evaluation of donor properties in four-coordinate {NiNO}10 complexes. Inorg Chem 2012; 51:12660-8. [PMID: 23140462 PMCID: PMC3524973 DOI: 10.1021/ic301204b] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The synthesis and characterization of new tris(carbene)borate ligand precursors containing substituted benzimidazol-2-ylidene and 1,3,4-triazol-2-ylidene donor groups, as well as a new tris(imidazol-2-ylidene)borate ligand precursor are reported. The relative donor strengths of the tris(carbene)borate ligands have been evaluated by the position of ν(NO) in four-coordinate {NiNO}(10) complexes, and follow the order: imidazol-2-ylidene > benzimidazol-2-ylidene > 1,3,4-triazol-2-ylidene. There is a large variation in ν(NO), suggesting these ligands to have a wide range of donor strengths while maintaining a consistent ligand topology. All ligands are stronger donors than Tp* and Cp*.
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Affiliation(s)
- Salvador B. Muñoz
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces NM 88003
| | - Wallace K. Foster
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces NM 88003
| | - Hsiu-Jung Lin
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces NM 88003
| | - Charles G. Margarit
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces NM 88003
| | - Diane A. Dickie
- Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque NM 87131
| | - Jeremy M. Smith
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces NM 88003
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11
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Đaković M, Vinković M, Roca S, Popović Z, Vicković I, Vikić-Topić D, Lukač J, Đaković N, Kusić Z. Structural study of picolinamide complexes of Ni(II), Zn(II), Cd(II), and Hg(II) nitrates in solid state and solution. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.663912] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Marijana Đaković
- a Laboratory of General and Inorganic Chemistry , Department of Chemistry, Faculty of Science, University of Zagreb , Horvatovac 102a , HR-10000 Zagreb , Croatia
| | - Marijana Vinković
- b NMR Centre , Ruđer Bošković Institute , Bijenička cesta 54 , HR-10000 Zagreb , Croatia
| | - Sunčica Roca
- b NMR Centre , Ruđer Bošković Institute , Bijenička cesta 54 , HR-10000 Zagreb , Croatia
| | - Zora Popović
- a Laboratory of General and Inorganic Chemistry , Department of Chemistry, Faculty of Science, University of Zagreb , Horvatovac 102a , HR-10000 Zagreb , Croatia
| | - Ivan Vicković
- a Laboratory of General and Inorganic Chemistry , Department of Chemistry, Faculty of Science, University of Zagreb , Horvatovac 102a , HR-10000 Zagreb , Croatia
| | - Dražen Vikić-Topić
- b NMR Centre , Ruđer Bošković Institute , Bijenička cesta 54 , HR-10000 Zagreb , Croatia
| | - Josip Lukač
- c Department of Oncology and Nuclear Medicine , University Hospital Center “Sestre Milosrdnice”, School of Medicine, University of Zagreb , Vinogradska cesta 29 , HR-10000 Zagreb , Croatia
| | - Nikola Đaković
- c Department of Oncology and Nuclear Medicine , University Hospital Center “Sestre Milosrdnice”, School of Medicine, University of Zagreb , Vinogradska cesta 29 , HR-10000 Zagreb , Croatia
- d Croatian Academy of Sciences and Arts , Zrinjski trg 11 , HR-10000 Zagreb , Croatia
| | - Zvonko Kusić
- c Department of Oncology and Nuclear Medicine , University Hospital Center “Sestre Milosrdnice”, School of Medicine, University of Zagreb , Vinogradska cesta 29 , HR-10000 Zagreb , Croatia
- d Croatian Academy of Sciences and Arts , Zrinjski trg 11 , HR-10000 Zagreb , Croatia
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Oseback SN, Shim SW, Kumar M, Greer SM, Gardner SR, Lemar KM, DeGregory PR, Papish ET, Tierney DL, Zeller M, Yap GPA. Crowded bis ligand complexes of TtzPh,Me with first row transition metals rearrange due to ligand field effects: structural and electronic characterization (TtzPh,Me = tris(3-phenyl-5-methyl-1,2,4-triazolyl)borate). Dalton Trans 2012; 41:2774-87. [DOI: 10.1039/c2dt12029a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Shannon N Oseback
- Departments of Chemistry, Drexel University, Philadelphia, PA 19104, USA
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Weismann D, Saurenz D, Boese R, Bläser D, Wolmershäuser G, Sun Y, Sitzmann H. Cyclopentadiene Alkylation and Nickel Complexes with Tri-, Tetra-, or Pentaisopropylcyclopentadienide or an Even Bulkier Lithium Alkylcyclopentadienide. Organometallics 2011. [DOI: 10.1021/om200372j] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel Weismann
- Fachbereich Chemie der TU Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Dirk Saurenz
- Fachbereich Chemie der TU Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Roland Boese
- Fachbereich Chemie der TU Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Dieter Bläser
- Fachbereich Chemie der TU Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Gotthelf Wolmershäuser
- Fachbereich Chemie der TU Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Yu Sun
- Fachbereich Chemie der TU Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Helmut Sitzmann
- Fachbereich Chemie der TU Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
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Tomson NC, Crimmin MR, Petrenko T, Rosebrugh LE, Sproules S, Boyd WC, Bergman RG, DeBeer S, Toste FD, Wieghardt K. A step beyond the Feltham-Enemark notation: spectroscopic and correlated ab initio computational support for an antiferromagnetically coupled M(II)-(NO)- description of Tp*M(NO) (M = Co, Ni). J Am Chem Soc 2011; 133:18785-801. [PMID: 22047035 DOI: 10.1021/ja206042k] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Multiple spectroscopic and computational methods were used to characterize the ground-state electronic structure of the novel {CoNO}(9) species Tp*Co(NO) (Tp* = hydro-tris(3,5-Me(2)-pyrazolyl)borate). The metric parameters about the metal center and the pre-edge region of the Co K-edge X-ray absorption spectrum were reproduced by density functional theory (DFT), providing a qualitative description of the Co-NO bonding interaction as a Co(II) (S(Co) = 3/2) metal center, antiferromagnetically coupled to a triplet NO(-) anion (S(NO) = 1), an interpretation of the electronic structure that was validated by ab initio multireference methods (CASSCF/MRCI). Electron paramagnetic resonance (EPR) spectroscopy revealed significant g-anisotropy in the S = ½ ground state, but the linear-response DFT performed poorly at calculating the g-values. Instead, CASSCF/MRCI computational studies in conjunction with quasi-degenerate perturbation theory with respect to spin-orbit coupling were required for obtaining accurate modeling of the molecular g-tensor. The computational portion of this work was extended to the diamagnetic Ni analogue of the Co complex, Tp*Ni(NO), which was found to consist of a Ni(II) (S(Ni) = 1) metal center antiferromagnetically coupled to an S(NO) = 1 NO(-). The similarity between the Co and Ni complexes contrasts with the previously studied Cu analogues, for which a Cu(I) bound to NO(0) formulation has been described. This discrepancy will be discussed along with a comparison of the DFT and ab initio computational methods for their ability to predict various spectroscopic and molecular features.
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Affiliation(s)
- Neil C Tomson
- Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
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Xiong J, Li GN, Sun L, Li YZ, Zuo JL, You XZ. Mono- and Dinuclear Co/Ni Complexes Bearing Redox-Active Tetrathiafulvaleneacetylacetonate Ligands - Syntheses, Crystal Structures, and Properties. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100627] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Half-sandwich scorpionate nickel complexes with aliphatic dicarboxylic acid co-ligands. TRANSIT METAL CHEM 2011. [DOI: 10.1007/s11243-011-9511-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Harding DJ, Harding P, Adams H. (Di-2-pyridylamine-κ 2N, N′)[hydrotris(3,5-diphenylpyrazol-1-yl-κ N2)borato]nickel(II) bromide dichloromethane monosolvate. Acta Crystallogr Sect E Struct Rep Online 2011; 67:m477-8. [PMID: 21753990 PMCID: PMC3099946 DOI: 10.1107/s1600536811010233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 03/18/2011] [Indexed: 11/10/2022]
Abstract
In the title compound, [Ni(C45H34BN6)(C10H9N3)]Br·CH2Cl2, the NiII atom is five-coordinated by the tridentate hydrotris(3,5-diphenylpyrazolyl)borate ligand and a bidentate di-2-pyridylamine ligand in a distorted square-pyramidal geometry. In the crystal, intermolecular N—H⋯Br and C—H⋯Br hydrogen bonds link the Ni complex cations and the Br− ions, forming a chain along the c axis.
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Harding DJ, Harding P, Kivnang J, Adams H. Cationic tris(pyrazolyl)borate bipyrimidine complexes. TRANSIT METAL CHEM 2010. [DOI: 10.1007/s11243-010-9358-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Crossley IR. The Organometallic Chemistry of Group 10 Poly(pyrazolyl)borate Complexes. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2010. [DOI: 10.1016/b978-0-12-374784-6.00002-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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White JM, Ng VW, Clarke DC, Smith PD, Taylor MK, Young CG. 1,2-Borotropic shifts and B–N bond cleavage reactions in molybdenum hydrotris(3-isopropylpyrazolyl)borate chemistry: Mixed-valence MoVIMo2V and pyrazole-rich oxo-MoIV complexes. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.05.065] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nieto I, Bontchev RP, Ozarowski A, Smirnov D, Krzystek J, Telser J, Smith JM. Synthesis and spectroscopic investigations of four-coordinate nickel complexes supported by a strongly donating scorpionate ligand. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.05.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Harding DJ, Harding P, Adams H. [Tris(3,5-diphenyl-pyrazol-yl)hydro-borato]nickel(II) bromide. Acta Crystallogr Sect E Struct Rep Online 2009; 65:m773. [PMID: 21582703 PMCID: PMC2969450 DOI: 10.1107/s1600536809021606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2009] [Accepted: 06/06/2009] [Indexed: 11/11/2022]
Abstract
In the title tris-(pyrazol-yl)borate (Tp(Ph2)) complex, [NiBr(C(45)H(34)BN(6))], the Ni, Br and B atoms lie on a crystallographic threefold axis and a distorted NiN(3)Br tetra-hedral geometry arises for the metal ion. In the crystal, C-H⋯(C=C) and C-H⋯π inter-actions help to establish the polar crystal packing.
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Hydrogen-bonded mononuclear nickel(II) benzoate complexes: synthesis and structural studies. TRANSIT METAL CHEM 2009. [DOI: 10.1007/s11243-009-9224-x] [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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Harding DJ, Harding P, Daengngern R, Yimklan S, Adams H. Synthesis and characterization of redox-active tris(pyrazolyl)borate cobalt complexes. Dalton Trans 2009:1314-20. [DOI: 10.1039/b815001j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Santana MD, López‐Banet L, García G, García L, Pérez J, Liu M. Hydrogen Bonding and Anion Binding in Structures of Tris(pyrazolyl)boratenickel(II) and Phosphate Esters. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800345] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- M. Dolores Santana
- Departamento de Química Inorgánica, Universidad de Murcia, 30071 Murcia, Spain
| | - Luisa López‐Banet
- Departamento de Química Inorgánica, Universidad de Murcia, 30071 Murcia, Spain
| | - Gabriel García
- Departamento de Química Inorgánica, Universidad de Murcia, 30071 Murcia, Spain
| | - Luís García
- Departamento de Ingeniería Minera, Geológica y Cartográfica, Área de Química Inorgánica, Universidad Politécnica de Cartagena, 30203 Cartagena, Spain
| | - José Pérez
- Departamento de Ingeniería Minera, Geológica y Cartográfica, Área de Química Inorgánica, Universidad Politécnica de Cartagena, 30203 Cartagena, Spain
| | - Malva Liu
- Departament de Termodinámica, Universitat de València, 4 6100 Burjassot, València, Spain
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