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Inglis CM, Manzano RA, Kirk RM, Sharma M, Stewart MD, Watson LJ, Hill AF. Poly(imidazolyliden-yl)borato Complexes of Tungsten: Mapping Steric vs. Electronic Features of Facially Coordinating Ligands. Molecules 2023; 28:7761. [PMID: 38067496 PMCID: PMC10798377 DOI: 10.3390/molecules28237761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 11/21/2023] [Accepted: 11/21/2023] [Indexed: 01/22/2024] Open
Abstract
A convenient synthesis of [HB(HImMe)3](PF6)2 (ImMe = N-methylimidazolyl) is decribed. This salt serves in situ as a precursor to the tris(imidazolylidenyl)borate Li[HB(ImMe)3] pro-ligand upon deprotonation with nBuLi. Reaction with [W(≡CC6H4Me-4)(CO)2(pic)2(Br)] (pic = 4-picoline) affords the carbyne complex [W(≡CC6H4Me-4)(CO)2{HB(ImMe)3}]. Interrogation of experimental and computational data for this compound allow a ranking of familiar tripodal and facially coordinating ligands according to steric (percentage buried volume) and electronic (νCO) properties. The reaction of [W(≡CC6H4Me-4)(CO)2{HB(ImMe)3}] with [AuCl(SMe2)] affords the heterobimetallic semi-bridging carbyne complex [WAu(μ-CC6H4Me-4)(CO)2(Cl){HB(ImMe)3}].
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Affiliation(s)
| | | | | | | | | | | | - Anthony F. Hill
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
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2
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Fujisawa K, Kataoka T, Terashima K, Kurihara H, de Santis Gonçalves F, Lehnert N. Coordinatively Unsaturated Nickel Nitroxyl Complex: Structure, Physicochemical Properties, and Reactivity toward Dioxygen. Molecules 2023; 28:6206. [PMID: 37687034 PMCID: PMC10489029 DOI: 10.3390/molecules28176206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
For its important roles in biology, nitrogen monoxide (·NO) has become one of the most studied and fascinating molecules in chemistry. ·NO itself acts as a "noninnocent" or "redox active" ligand to transition metal ions to give metal-NO (M-NO) complexes. Because of this uncertainty due to redox chemistry, the real description of the electronic structure of the M-NO unit requires extensive spectroscopic and theoretical studies. We previously reported the Ni-NO complex with a hindered N3 type ligand [Ni(NO)(L3)] (L3- denotes hydrotris(3-tertiary butyl-5-isopropyl-1-pyrazolyl)borate anion), which contains a high-spin (hs) nickel(II) center and a coordinated 3NO-. This complex is very stable toward dioxygen due to steric protection of the nickel(II) center. Here, we report the dioxygen reactivity of a new Ni-NO complex, [Ni(NO)(I)(L1″)], with a less hindered N2 type bis(pyrazolyl)methane ligand, which creates a coordinatively unsaturated ligand environment about the nickel center. Here, L1″ denotes bis(3,5-diisopropyl-1-pyrazolyl)methane. This complex is also described as a hs-nickel(II) center with a bound 3NO-, based on spectroscopic and theoretical studies. Unexpectedly, the reaction of [Ni(NO)(I)(L1″)] with O2 yielded [Ni(κ2-O2N)(L1″)2](I3), with the oxidation of both 3NO- and the I- ion to yield NO2- and I3-. Both complexes were characterized by X-ray crystallography, IR, and UV-Vis spectroscopy and theoretical calculations.
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Affiliation(s)
- Kiyoshi Fujisawa
- Department of Chemistry, Ibaraki University, Mito 310-8512, Ibaraki, Japan
| | - Taisei Kataoka
- Department of Chemistry, Ibaraki University, Mito 310-8512, Ibaraki, Japan
| | - Kohei Terashima
- Department of Chemistry, Ibaraki University, Mito 310-8512, Ibaraki, Japan
| | - Haruka Kurihara
- Department of Chemistry, Ibaraki University, Mito 310-8512, Ibaraki, Japan
| | - Felipe de Santis Gonçalves
- Department of Chemistry and Department of Biophysics, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109, USA;
| | - Nicolai Lehnert
- Department of Chemistry and Department of Biophysics, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109, USA;
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Hoof S, Limberg C. Bioinspired Trispyrazolylborato Nickel(II) Flavonolate Complexes and Their Reactivity Toward Dioxygen. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800457] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Santina Hoof
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Christian Limberg
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-Str. 2 12489 Berlin Germany
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Truong PT, Broering EP, Dzul SP, Chakraborty I, Stemmler TL, Harrop TC. Simultaneous nitrosylation and N-nitrosation of a Ni-thiolate model complex of Ni-containing SOD. Chem Sci 2018; 9:8567-8574. [PMID: 30568781 PMCID: PMC6253683 DOI: 10.1039/c8sc03321h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 09/17/2018] [Indexed: 11/21/2022] Open
Abstract
Nitric oxide (NO) is used as a substrate analogue/spectroscopic probe of metal sites that bind and activate oxygen and its derivatives. To assess the interaction of superoxide with the Ni center in Ni-containing superoxide dismutase (NiSOD), we studied the reaction of NO+ and NO with the model complex, Et4N[Ni(nmp)(SPh-o-NH2-p-CF3)] (1; nmp2- = dianion of N-(2-mercaptoethyl)picolinamide; -SPh-o-NH2-p-CF3 = 2-amino-4-(trifluoromethyl)benzenethiolate) and its oxidized analogue 1ox , respectively. The ultimate products of these reactions are the disulfide of -SPh-o-NH2-p-CF3 and the S,S-bridged tetrameric complex [Ni4(nmp)4], a result of S-based redox activity. However, introduction of NO to 1 affords the green dimeric {NiNO}10 complex (Et4N)2[{Ni(κ2-SPh-o-NNO-p-CF3)(NO)}2] (2) via NO-induced loss of nmp2- as the disulfide and N-nitrosation of the aromatic thiolate. Complex 2 was characterized by X-ray crystallography and several spectroscopies. These measurements are in-line with other tetrahedral complexes in the {NiNO}10 classification. In contrast to the established stability of this metal-nitrosyl class, the Ni-NO bond of 2 is labile and release of NO from this unit was quantified by trapping the NO with a CoII-porphyrin (70-80% yield). In the process, the Ni ends up coordinated by two o-nitrosaminobenzenethiolato ligands to result in the structurally characterized trans-(Et4N)2[Ni(SPh-o-NNO-p-CF3)2] (3), likely by a disproportionation mechanism. The isolation and characterization of 2 and 3 suggest that: (i) the strongly donating thiolates dominate the electronic structure of Ni-nitrosyls that result in less covalent Ni-NO bonds, and (ii) superoxide undergoes disproportionation via an outer-sphere mechanism in NiSOD as complexes in the {NiNO}9/8 state have yet to be isolated.
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Affiliation(s)
- Phan T Truong
- Department of Chemistry , Center for Metalloenzyme Studies , The University of Georgia , Athens , Georgia 30602 , USA .
| | - Ellen P Broering
- Department of Chemistry , Center for Metalloenzyme Studies , The University of Georgia , Athens , Georgia 30602 , USA .
| | - Stephen P Dzul
- Departments of Pharmaceutical Sciences, Biochemistry, and Molecular Biology , Wayne State University , Detroit , Michigan 48201 , USA
| | - Indranil Chakraborty
- Department of Chemistry and Biochemistry , Florida International University , Miami , Florida 33199 , USA
| | - Timothy L Stemmler
- Departments of Pharmaceutical Sciences, Biochemistry, and Molecular Biology , Wayne State University , Detroit , Michigan 48201 , USA
| | - Todd C Harrop
- Department of Chemistry , Center for Metalloenzyme Studies , The University of Georgia , Athens , Georgia 30602 , USA .
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6
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Affiliation(s)
- Nathan A. Eberhardt
- Department
of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Hairong Guan
- Department
of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
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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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Kreider-Mueller A, Rong Y, Owen JS, Parkin G. Molecular structures of tris(2-mercapto-1-tert-butylimidazolyl)hydroborato and tris(2-mercapto-1-adamantylimidazolyl)hydroborato sodium complexes: analysis of [Tm(R)] ligand coordination modes and conformations. Dalton Trans 2014; 43:10852-65. [PMID: 24898480 DOI: 10.1039/c4dt01271b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The tris(mercaptoimidazolyl)hydroborato complexes, [κ(3)-S2H-Tm(Bu(t))]Na(THF)3 and [κ(3)-S2H-Tm(Ad)]Na(THF)3, which feature t-butyl and adamantyl substituents, have been synthesized via the reactions of the respective 1-R-1,3-dihydro-2H-imidazole-2-thiones with NaBH4 in THF (R = Bu(t), 1-Ad). X-ray diffraction studies indicate that the compounds are monomeric and that the [Tm(R)] ligands coordinate to the metal in a κ(3)-S2H manner via two of the sulfur donors and the hydrogen attached to boron, a combination that is unprecedented for sodium derivatives. Analysis of the tris(mercaptoimidazolyl)hydroborato compounds that are listed in the Cambridge Structural Database has allowed for the formulation of a set of criteria that enables κ(x)-S(x) and κ(x+1)-S(x)H coordination modes to be identified. Furthermore, the various κ(x)-S(x) and κ(x+1)-S(x)H coordination modes have also been analyzed with respect to the conformations of the [Tm(R)] ligands, which differ by rotation of the imidazolethione moieties about the B-N bond.
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Affiliation(s)
- Ava Kreider-Mueller
- Department of Chemistry, Columbia University, New York, New York 10027, USA.
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Conradie J, Ghosh A. Stereochemical diversity of {MNO}(10) complexes: molecular orbital analyses of nickel and copper nitrosyls. Inorg Chem 2014; 53:4847-55. [PMID: 24796643 DOI: 10.1021/ic4028157] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The great majority of {NiNO}(10) complexes are characterized by short Ni-N(O) distances of 1.60-1.65 Å and linear NO units. Against this backdrop, the {CuNO}(10) unit in the recently reported [Cu(CH3NO2)5(NO)](2+) cation (1) has a CuNO angle of about 120° and a very long 1.96 Å Cu-N(O) bond. According to DFT calculations, metal-NO bonding in 1 consists of a single Cu(dz(2))-NO(π*) σ-interaction and essentially no metal(dπ)-NO(π*) π-bonding, which explains both the bent CuNO geometry and the long, weak Cu-N(O) bond. This σ-interaction is strongly favored by a ligand trans to the NO; indeed such a trans ligand may be critical for the existence and stability of a {CuNO}(10) unit. By contrast, {NiNO}(10) complexes exhibit a strong avoidance of such trans ligands. Thus, a five-coordinate {NiNO}(10) complex appears to favor a trigonal-bipyramidal structure with the NO in an equatorial position, as in the case of [Ni(bipy)2(NO)](+) (6). An unusual set of Ni(d)-NO(π*) orbital interactions accounts for the strongly bent NiNO geometry for this complex.
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Affiliation(s)
- Jeanet Conradie
- Department of Chemistry and Center for Theoretical and Computational Chemistry, University of Tromsø , N-9037 Tromsø, Norway
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10
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Rajasekharan-Nair R, Darby L, Reglinski J, Spicer MD, Kennedy AR. Nitric oxide species as oxidising agents and adducts for soft scorpionates. INORG CHEM COMMUN 2014. [DOI: 10.1016/j.inoche.2013.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Al-Harbi A, Rong Y, Parkin G. Synthesis and structural characterization of bis and tris(2-mercapto-1-methylbenzimidazolyl)hydroborato complexes: benzannulation promotes κ³-coordination. Dalton Trans 2013; 42:11117-27. [PMID: 23801309 DOI: 10.1039/c3dt51092a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The benzannulated bis and tris(mercaptoimidazolyl)borohydride compounds, [BmMeBenz]Na and [TmMeBenz]Na, have been synthesized via the reactions of NaBH4 with two and three equivalents of 1-methyl-1,3-dihydro-2H-benzimidazole-2-thione, respectively. X-ray diffraction studies on the THF adducts, {μ-[BmMeBenz]Na(THF)₂}₂ and {[TmMeBenz]Na}₂(μ-THF)₃, indicate that both compounds are dinuclear but differ according to the nature of the bridging ligand. Specifically, {μ-[BmMeBenz]Na(THF)₂}₂ possesses bridging [BmMeBenz] ligands and terminal THF ligands, while {[TmMeBenz]Na}₂(μ-THF)₃ possesses terminal [TmMeBenz] ligands and bridging THF ligands. The tris(mercaptoimidazolyl)borohydride ligand of {[TmMeBenz]Na}₂(μ-THF)₃ coordinates in a κ³-manner, which is in marked contrast to the κ²-, κ¹- and κ⁰-modes that have been reported for various [TmMe]Na derivatives. Density functional theory (DFT) geometry optimization calculations of the anions [TmMeBenz]⁻ and [TmMe]⁻ in the gas phase indicate that the conformation required for κ³-S₃ coordination, i.e. one in which the three sulfur donors point away from the B-H group, is relatively more stable for [TmMeBenz]⁻ than for [TmMe]⁻, and thus provides a rationalization for the observation that benzannulation enables κ³-coordination of tris(mercaptoimidazolyl)borohydride ligand in {[TmMeBenz]Na}₂(μ-THF)₃. Furthermore, comparison of the molecular structure and IR spectroscopic properties of [TmMeBenz]Re(CO)₃ with those of [TmMe]Re(CO)₃ indicates that benzannulation reduces the electron donating properties of the ligand, but has little effect on its steric properties. {μ-[BmMeBenz]Na(THF)₂}₂ and {[TmMeBenz]Na}₂(μ-THF)₃ react with [Me₃PCuCl]₄ to give [BmMeBenz]CuPMe₃ and [TmMeBenz]CuPMe₃, the first pair of structurally related bis and tris(mercaptoimidazolyl)hydroborato copper(I) compounds.
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Affiliation(s)
- Ahmed Al-Harbi
- Department of Chemistry, Columbia University, New York, NY 10027, USA
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12
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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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13
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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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Wright AM, Wu G, Hayton TW. Formation of N2O from a Nickel Nitrosyl: Isolation of the cis-[N2O2]2– Intermediate. J Am Chem Soc 2012; 134:9930-3. [DOI: 10.1021/ja304204q] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ashley M. Wright
- Department of Chemistry and Biochemistry, University of California—Santa Barbara, Santa
Barbara, California 93106, United States
| | - Guang Wu
- Department of Chemistry and Biochemistry, University of California—Santa Barbara, Santa
Barbara, California 93106, United States
| | - Trevor W. Hayton
- Department of Chemistry and Biochemistry, University of California—Santa Barbara, Santa
Barbara, California 93106, United States
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Wang XY, Ma Q, Duan T, Chen Q, Zhang QF. Ruthenium complexes with dihydridobis(N-methyl-2-mercaptoimidazolyl)borate ligands. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.12.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Wright AM, Wu G, Hayton TW. Late-metal nitrosyl cations: synthesis and reactivity of [Ni(NO)(MeNO2)3][PF6]. Inorg Chem 2011; 50:11746-53. [PMID: 22032412 DOI: 10.1021/ic201821t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The reaction of [NO][PF(6)] with excess Ni powder in CH(3)NO(2), in the presence of 2 mol % NiI(2), results in the formation of [Ni(NO)(CH(3)NO(2))(3)][PF(6)] (1), which can be isolated in modest yield as a blue crystalline solid. Also formed in the reaction is [Ni(CH(3)NO(2))(6)][PF(6)](2) (2), which can be isolated in comparable yield as a pale-green solid. In the solid state, 1 exhibits tetrahedral geometry about the Ni center with a linear nitrosyl ligand [Ni1-N1-O1 = 174.1(8)°] and a short Ni-N bond distance [1.626(6) Å]. As anticipated, the weakly coordinating nitromethane ligands in 1 are easily displaced by a variety of donors, including Et(2)O, MeCN, and piperidine (NC(5)H(11)). More surprisingly, the addition of mesitylene to 1 results in the formation of an η(6)-coordinated nickel arene complex, [Ni(η(6)-1,3,5-Me(3)C(6)H(3))(NO)][PF(6)] (6). In the solid state, complex 6 exhibits a long Ni-C(cent) distance [1.682(2) Å], suggesting a relatively weak Ni-arene interaction, a consequence of the strong π-back-donation to the nitrosyl ligand. The addition of anisole to 1 also results in the formation of a η(6) nickel arene complex, [Ni(η(6)-MeOC(6)H(5))(NO)][PF(6)] (7). This complex also exhibits a long Ni-C(cent) distance [1.684(1) Å].
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Affiliation(s)
- Ashley M Wright
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
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Kimani MM, Brumaghim JL, VanDerveer D. Probing the Antioxidant Action of Selenium and Sulfur Using Cu(I)-Chalcogenone Tris(pyrazolyl)methane and -borate Complexes. Inorg Chem 2010; 49:9200-11. [DOI: 10.1021/ic100668b] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Martin M. Kimani
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634
| | - Julia L. Brumaghim
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634
| | - Don VanDerveer
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634
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Abstract
This review traces the development and application of the tris(thioether)borate ligands, tripodal ligands with highly polarizable thioether donors. Areas of emphasis include the basic coordination chemistry of the mid-to-late first row transition metals (Fe, Ni, Co, Cu), and the role of the thioether substituent in directing complex formation, the modeling of zinc thiolate protein active sites, high-spin organo-iron and organo-cobalt chemistry, the preparation of monovalent complexes of Fe, Co and Ni, and dioxygen and sulfur activation by monovalent nickel complexes.
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Affiliation(s)
- Charles G. Riordan
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, United States
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Dinoi C, Guedes da Silva MFC, Alegria ECBA, Smoleński P, Martins LMDRS, Poli R, Pombeiro AJL. Molybdenum Complexes Bearing the Tris(1-pyrazolyl)methanesulfonate Ligand: Synthesis, Characterization and Electrochemical Behaviour. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000018] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Yurkerwich K, Coleman F, Parkin G. Bis(2-mercapto-1-R-imidazolyl)hydroborato complexes of aluminium, gallium, indium and thallium: compounds possessing gallium–gallium bonds and a trivalent thallium alkyl. Dalton Trans 2010; 39:6939-42. [DOI: 10.1039/c0dt00461h] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Crossley IR, Hill AF, Willis AC. Metallaboratranes: Bis- and Tris(methimazolyl)borane Complexes of Group 9 Metal Carbonyls and Thiocarbonyls. Organometallics 2009. [DOI: 10.1021/om900655k] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ian R. Crossley
- Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, Australian Capital Territory, Australia
- Department of Chemistry, University of Sussex, Brighton, United Kingdom
| | - Anthony F. Hill
- Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Anthony C. Willis
- Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, Australian Capital Territory, Australia
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Hill AF, Smith MK, Tshabang N, Willis AC. Bimetallic Dihydrobis(methimazolyl)borate Coordination: Structure [Mo2{μ2-H2B(mt)2}(CO)7][Au2(μ2-H2B(mt)2}](PEt3)2] (mt = methimazolyl). Organometallics 2009. [DOI: 10.1021/om900891a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anthony F. Hill
- Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, ACT, Australia
| | - Matthew K. Smith
- Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, ACT, Australia
| | - Never Tshabang
- Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, ACT, Australia
| | - Anthony C. Willis
- Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, ACT, Australia
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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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Garcia R, Paulo A, Santos I. Rhenium and technetium complexes with anionic or neutral scorpionates: An overview of their relevance in biomedical applications. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.06.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Affiliation(s)
- Mark D. Spicer
- WestCHEM, Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK, Fax: +44‐141‐548‐4822
| | - John Reglinski
- WestCHEM, Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK, Fax: +44‐141‐548‐4822
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Tennyson AG, Dhar S, Lippard SJ. Synthesis and Characterization of {Ni(NO)}10and {Co(NO)2}10Complexes Supported by Thiolate Ligands. J Am Chem Soc 2008; 130:15087-98. [DOI: 10.1021/ja803992y] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Andrew G. Tennyson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Shanta Dhar
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Stephen J. Lippard
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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Beheshti A, Clegg W, Nobakht V, Panahi Mehr M, Russo L. Complexes of copper(i) and silver(i) with bis(methimazolyl)borate and dihydrobis(2-mercaptothiazolyl)borate ligands. Dalton Trans 2008:6641-6. [DOI: 10.1039/b811369f] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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