1
|
Magnall R, Balázs G, Lu E, Kern M, Slageren J, Tuna F, Wooles AJ, Scheer M, Liddle ST. Photolytic and Reductive Activations of 2‐Arsaethynolate in a Uranium–Triamidoamine Complex: Decarbonylative Arsenic‐Group Transfer Reactions and Trapping of a Highly Bent and Reduced Form. Chemistry 2019; 25:14246-14252. [DOI: 10.1002/chem.201903973] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Rosie Magnall
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Gábor Balázs
- Institute of Inorganic ChemistryUniversity of Regensburg Universitätsstr.31 Regensburg 93053 Germany
| | - Erli Lu
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Michal Kern
- Institute of Physical ChemistryUniversity of Stuttgart Pfaffenwaldring 55 Stuttgart 70569 Germany
| | - Joris Slageren
- Institute of Physical ChemistryUniversity of Stuttgart Pfaffenwaldring 55 Stuttgart 70569 Germany
| | - Floriana Tuna
- School of Chemistry and Photon Science InstituteThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Ashley J. Wooles
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Manfred Scheer
- Institute of Inorganic ChemistryUniversity of Regensburg Universitätsstr.31 Regensburg 93053 Germany
| | - Stephen T. Liddle
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| |
Collapse
|
2
|
Buss JA, Hirahara M, Ueda Y, Agapie T. Molecular Mimics of Heterogeneous Metal Phosphides: Thermochemistry, Hydride‐Proton Isomerism, and HER Reactivity. Angew Chem Int Ed Engl 2018; 57:16329-16333. [DOI: 10.1002/anie.201808307] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/18/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Joshua A. Buss
- Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Masanari Hirahara
- Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Yohei Ueda
- Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Theodor Agapie
- Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| |
Collapse
|
3
|
Buss JA, Hirahara M, Ueda Y, Agapie T. Molecular Mimics of Heterogeneous Metal Phosphides: Thermochemistry, Hydride‐Proton Isomerism, and HER Reactivity. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808307] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Joshua A. Buss
- Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Masanari Hirahara
- Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Yohei Ueda
- Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Theodor Agapie
- Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| |
Collapse
|
4
|
Hinz A, Goicoechea JM. Limitations of Steric Bulk: Towards Phospha-germynes and Phospha-stannynes. Chemistry 2018; 24:7358-7363. [PMID: 29573494 DOI: 10.1002/chem.201801329] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Indexed: 11/06/2022]
Abstract
The use of bulky aryl(silyl)amides (R) as substituents for the stabilisation of phospha-germynes and phospha-stannynes (R-Ge≡P and R-Sn≡P, respectively) is described. Such species can be transiently generated by photolysis of the phosphaketene precursors (RE(PCO); E=Ge, Sn). Utilisation of bulky amides R1 and R2 (R1 =Ar**NSi(OtBu)3 , where Ar**=2,6-bis[bis(4-tert-butylphenyl)methyl]-4-methylphenyl; R2 =Ar***NSi(iPr)3 , where Ar***=2,6-bis[bis(3,5-di-tert-butylphenyl)methyl]-4-methylphenyl) facilitates the formation of diphosphene-type dimers, [(RGe)P]2 and [(RSn)P]2 . In an effort to circumvent dimerisation, the bulkier R3 substituent (R3 =Ar***NSi(4-tert-butylphenyl)3 ) was employed in an analogous series of experiments. This affords cyclic germylenes and stannylenes due to insertion of the terminal phosphide into Si-C bonds of the R3 substituent, which in case of the stannylene could act as a trap for another R3 -Sn≡P moiety. All attempts to isolate terminal phosphide species were unsuccessful due to the reactivity of such compounds towards the organic periphery of the bulky amides, highlighting the limitations of highly sterically demanding functionalities.
Collapse
Affiliation(s)
- Alexander Hinz
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Jose M Goicoechea
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| |
Collapse
|
5
|
Wang JQ, Chi C, Hu HS, Meng L, Luo M, Li J, Zhou M. Triple Bonds Between Iron and Heavier Group 15 Elements in AFe(CO) 3- (A=As, Sb, Bi) Complexes. Angew Chem Int Ed Engl 2017; 57:542-546. [PMID: 29193525 DOI: 10.1002/anie.201709875] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 11/21/2017] [Indexed: 11/08/2022]
Abstract
Heteronuclear transition-metal-main-group-element carbonyl complexes of AsFe(CO)3- , SbFe(CO)3- , and BiFe(CO)3- were produced by a laser vaporization supersonic ion source in the gas phase, and were studied by mass-selected IR photodissociation spectroscopy and advanced quantum chemistry methods. These complexes have C3v structures with all of the carbonyl ligands bonded on the iron center, and feature covalent triple bonds between bare Group 15 elements and Fe(CO)3- . Chemical bonding analyses on the whole series of AFe(CO)3- (A=N, P, As, Sb, Bi, Mc) complexes indicate that the valence orbitals involved in the triple bonds are hybridized 3d and 4p atomic orbitals of iron, leading to an unusual (dp-p) type of transition-metal-main-group-element multiple bonding. The σ-type three-orbital interaction between Fe 3d/4p and Group 15 np valence orbitals plays an important role in the bonding and stability of the heavier AFe(CO)3- (A=As, Sb, Bi) complexes.
Collapse
Affiliation(s)
- Jia-Qi Wang
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Chaoxian Chi
- School of Chemistry, Biological and Materials Sciences, Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, Jiangxi Province, 330013, China
| | - Han-Shi Hu
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Luyan Meng
- School of Chemistry, Biological and Materials Sciences, Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, Jiangxi Province, 330013, China
| | - Mingbiao Luo
- School of Chemistry, Biological and Materials Sciences, Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, Jiangxi Province, 330013, China
| | - Jun Li
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Mingfei Zhou
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China
| |
Collapse
|
6
|
Wang JQ, Chi C, Hu HS, Meng L, Luo M, Li J, Zhou M. Triple Bonds Between Iron and Heavier Group 15 Elements in AFe(CO)3
−
(A=As, Sb, Bi) Complexes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709875] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jia-Qi Wang
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education; Tsinghua University; Beijing 100084 China
| | - Chaoxian Chi
- School of Chemistry, Biological and Materials Sciences; Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation; East China University of Technology; Nanchang Jiangxi Province 330013 China
| | - Han-Shi Hu
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education; Tsinghua University; Beijing 100084 China
| | - Luyan Meng
- School of Chemistry, Biological and Materials Sciences; Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation; East China University of Technology; Nanchang Jiangxi Province 330013 China
| | - Mingbiao Luo
- School of Chemistry, Biological and Materials Sciences; Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation; East China University of Technology; Nanchang Jiangxi Province 330013 China
| | - Jun Li
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education; Tsinghua University; Beijing 100084 China
| | - Mingfei Zhou
- Department of Chemistry; Collaborative Innovation Center of Chemistry for Energy Materials; Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Fudan University; Shanghai 200433 China
| |
Collapse
|
7
|
Rookes TM, Gardner BM, Balázs G, Gregson M, Tuna F, Wooles AJ, Scheer M, Liddle ST. Crystalline Diuranium Phosphinidiide and μ-Phosphido Complexes with Symmetric and Asymmetric UPU Cores. Angew Chem Int Ed Engl 2017; 56:10495-10500. [PMID: 28677144 PMCID: PMC5577518 DOI: 10.1002/anie.201706002] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Indexed: 11/11/2022]
Abstract
Reaction of [U(TrenTIPS )(PH2 )] (1, TrenTIPS =N(CH2 CH2 NSiPri3 )3 ) with C6 H5 CH2 K and [U(TrenTIPS )(THF)][BPh4 ] (2) afforded a rare diuranium parent phosphinidiide complex [{U(TrenTIPS )}2 (μ-PH)] (3). Treatment of 3 with C6 H5 CH2 K and two equivalents of benzo-15-crown-5 ether (B15C5) gave the diuranium μ-phosphido complex [{U(TrenTIPS )}2 (μ-P)][K(B15C5)2 ] (4). Alternatively, reaction of [U(TrenTIPS )(PH)][Na(12C4)2 ] (5, 12C4=12-crown-4 ether) with [U{N(CH2 CH2 NSiMe2 But )2 CH2 CH2 NSi(Me)(CH2 )(But )}] (6) produced the diuranium μ-phosphido complex [{U(TrenTIPS )}(μ-P){U(TrenDMBS )}][Na(12C4)2 ] [7, TrenDMBS =N(CH2 CH2 NSiMe2 But )3 ]. Compounds 4 and 7 are unprecedented examples of uranium phosphido complexes outside of matrix isolation studies, and they rapidly decompose in solution underscoring the paucity of uranium phosphido complexes. Interestingly, 4 and 7 feature symmetric and asymmetric UPU cores, respectively, reflecting their differing steric profiles.
Collapse
Affiliation(s)
- Thomas M. Rookes
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Benedict M. Gardner
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Gábor Balázs
- Institute of Inorganic ChemistryUniversity of RegensburgUniversitätsstrasse 3193053RegensburgGermany
| | - Matthew Gregson
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Floriana Tuna
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Ashley J. Wooles
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Manfred Scheer
- Institute of Inorganic ChemistryUniversity of RegensburgUniversitätsstrasse 3193053RegensburgGermany
| | - Stephen T. Liddle
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| |
Collapse
|
8
|
Rookes TM, Gardner BM, Balázs G, Gregson M, Tuna F, Wooles AJ, Scheer M, Liddle ST. Crystalline Diuranium Phosphinidiide and μ-Phosphido Complexes with Symmetric and Asymmetric UPU Cores. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Thomas M. Rookes
- School of Chemistry; The University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Benedict M. Gardner
- School of Chemistry; The University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Gábor Balázs
- Institute of Inorganic Chemistry; University of Regensburg; Universitätsstrasse 31 93053 Regensburg Germany
| | - Matthew Gregson
- School of Chemistry; The University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Floriana Tuna
- School of Chemistry; The University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Ashley J. Wooles
- School of Chemistry; The University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Manfred Scheer
- Institute of Inorganic Chemistry; University of Regensburg; Universitätsstrasse 31 93053 Regensburg Germany
| | - Stephen T. Liddle
- School of Chemistry; The University of Manchester; Oxford Road Manchester M13 9PL UK
| |
Collapse
|
9
|
Schwarzmaier C, Noor A, Glatz G, Zabel M, Timoshkin AY, Cossairt BM, Cummins CC, Kempe R, Scheer M. Formation of cyclo-E42− Units (E4=P4, As4, AsP3) by a Complex with a CrCr Quintuple Bond. Angew Chem Int Ed Engl 2011; 50:7283-6. [DOI: 10.1002/anie.201102361] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Indexed: 11/12/2022]
|
10
|
Schwarzmaier C, Noor A, Glatz G, Zabel M, Timoshkin AY, Cossairt BM, Cummins CC, Kempe R, Scheer M. Die Bildung von cyclo-E42−-Einheiten (E4=P4, As4, AsP3) durch einen Komplex mit Chrom-Chrom-Fünffachbindung. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102361] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
11
|
Scheer M, Kuntz C, Stubenhofer M, Zabel M, Timoshkin A. Stepwise Expansion of a Cp* Ring at Pentelidene Complexes and Stereoselective Formation of Triphosphines. Angew Chem Int Ed Engl 2009; 49:188-92. [DOI: 10.1002/anie.200904827] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
12
|
Scheer M, Kuntz C, Stubenhofer M, Zabel M, Timoshkin AY. Schrittweise Erweiterung eines Cp*-Rings am Pentelidenkomplex und stereoselektive Bildung von Triphosphanen. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200904827] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
13
|
Scheer M, Himmel D, Kuntz C, Zhan S, Leiner E. Reactivity of Transition Metal-Phosphorus Triple Bonds towards Triply Bonded [{CpMo(CO)2}2]: Formation of Heteronuclear Cluster Compounds. Chemistry 2008; 14:9020-9029. [DOI: 10.1002/chem.200800804] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
14
|
Scheer M. The coordination chemistry of group 15 element ligand complexes—a developing area. Dalton Trans 2008:4372-86. [DOI: 10.1039/b718179p] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
15
|
Balázs G, Gregoriades LJ, Scheer M. Triple Bonds between Transition Metals and the Heavier Elements of Groups 14 and 15. Organometallics 2007. [DOI: 10.1021/om070108o] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gábor Balázs
- Institut für Anorganische Chemie, Universität Regensburg, Regensburg D-93053, Germany
| | | | - Manfred Scheer
- Institut für Anorganische Chemie, Universität Regensburg, Regensburg D-93053, Germany
| |
Collapse
|
16
|
Fox AR, Clough CR, Piro NA, Cummins CC. A terminal nitride-to-phosphide conversion sequence followed by tungsten phosphide functionalization using a diphenylphosphenium synthon. Angew Chem Int Ed Engl 2007; 46:973-6. [PMID: 17211909 DOI: 10.1002/anie.200604736] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alexander R Fox
- Department of Chemistry, Room 6-435, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139-4307, USA
| | | | | | | |
Collapse
|
17
|
Cummins CC. Terminal, anionic carbide, nitride, and phosphide transition-metal complexes as synthetic entries to low-coordinate phosphorus derivatives. Angew Chem Int Ed Engl 2007; 45:862-70. [PMID: 16385612 DOI: 10.1002/anie.200503327] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Anionic terminal one-atom nitride, phosphide, and carbide complexes are excellent starting materials for the synthesis of ligands containing low-coordinate phosphorus centers in the protecting coordination sphere of the metal complex. Salt-elimination reactions with chlorophosphanes lead to phosphaisocyanide, iminophosphinimide, and diorganophosphanylphosphinidene complexes in which the unusual phosphorus ligands are stabilized by coordination. X-ray structure analyses and density-functional calculations illuminate the bonding in these compounds.
Collapse
Affiliation(s)
- Christopher C Cummins
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.
| |
Collapse
|
18
|
Scheer M, Himmel D, Johnson B, Kuntz C, Schiffer M. Ringerweiterung einer Cp*-Einheit – Bildung eines 1,2-Diphosphacyclooctatetraen-Liganden. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200605173] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
19
|
Scheer M, Himmel D, Johnson BP, Kuntz C, Schiffer M. Ring Expansion of a Cp* Moiety: Formation of a 1,2-Diphosphacyclooctatetraene Ligand. Angew Chem Int Ed Engl 2007; 46:3971-5. [PMID: 17427166 DOI: 10.1002/anie.200605173] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Manfred Scheer
- Institut für Anorganische Chemie der Universität Regensburg, 93040 Regensburg, Germany.
| | | | | | | | | |
Collapse
|
20
|
Fox A, Clough C, Piro N, Cummins C. A Terminal Nitride-to-Phosphide Conversion Sequence Followed by Tungsten Phosphide Functionalization Using a Diphenylphosphenium Synthon. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604736] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
21
|
Abstract
The terminal AsS and PS complexes [(N(3)N)W(ES)] (N(3)N=N(CH(2)CH(2)NSiMe(3))(3); E=P (3), As (4)) were synthesised by reaction of [(N(3)N)W[triple chemical bond]As] and [(N(3)N)W[triple chemical bond]P], respectively, with cyclohexene sulfide. Both complexes present very short W--E and E--S bond lengths. The bonding was investigated by density functional theory (DFT) calculations using the fragment calculation method and natural bond orbital (NBO) analysis. According to the fragment analysis, in which the complexes were separated in an ES and a (N(3)N)W fragment, the bonding in complexes 3, 4 and [(N(3)N)W(SbS)] (5) is realised over a set of two sigma (1 sigma and 2 sigma) and two degenerate pi molecular orbitals (MOs) (1 pi and 2 pi). The 1 sigma MO is a bonding MO extended over the N(ax)-W-E-S core, whereas the 2 sigma MO is localised mainly on the E-S fragment. The 1 pi set is a E-S localised bonding molecular orbital, whereas the 2 pi set is in phase with respect to W-E but in antiphase with respect to E-S. Both methods indicate bond orders around two for both the E--S and the W--E bonds. The polarity of the complexes was examined by Hirshfeld charge analysis. This shows that complexes 3 and 4 are only slightly polarised, whereas 5 is moderately polarised toward the sulphur. As suggested by the computational results, the pi system in complexes 3-5 is best described by two three-centre four-electron bonds.
Collapse
Affiliation(s)
- Gábor Balázs
- Institut für Anorganische Chemie der Universität Regensburg, 93040 Regensburg, Germany.
| | | | | |
Collapse
|
22
|
Johnson BP, Balázs G, Scheer M. Low-coordinate E1 ligand complexes of Group 15 elements—A developing area. Coord Chem Rev 2006. [DOI: 10.1016/j.ccr.2005.11.023] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
23
|
Anionische Übergangsmetallkomplexe mit terminalen Carbid-, Nitrid- und Phosphidliganden als Synthesebausteine für niederkoordinierte Phosphorverbindungen. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200503327] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
24
|
Balázs G, Sierka M, Scheer M. Antimony-Tungsten Triple Bond: A Stable Complex with a Terminal Antimony Ligand. Angew Chem Int Ed Engl 2005; 44:4920-4. [PMID: 15999375 DOI: 10.1002/anie.200500781] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gábor Balázs
- Institut für Anorganische Chemie, Universität Regensburg, 93040 Regensburg, Germany
| | | | | |
Collapse
|
25
|
Balázs G, Sierka M, Scheer M. Antimon-Wolfram-Dreifachbindung: ein stabiler Komplex mit terminalem Sb-Liganden. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200500781] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
26
|
Affiliation(s)
- Franck Gascoin
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
| | | |
Collapse
|
27
|
|
28
|
Schneider S, Filippou AC. Triamidoamine complexes of chromium(III) and chromium(IV). Inorg Chem 2001; 40:4674-7. [PMID: 11511214 DOI: 10.1021/ic010361v] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Treatment of [CrCl3(THF)3] with slightly more than 1 equiv of Li3(N3N) [(N3N)(3-) = ((Me3SiNCH2CH2)3N)(3-)] affords the triamidoamine complex [Cr(N3N)] (1) in 75% yield. 1 is oxidized by PhICl2, CuCl2, or AgCl to give the chromium(IV) complex [Cr(N3N)Cl] (2) in moderate yields. Alternatively, complex 2 is obtained directly from [CrCl3(THF)3] in 50% yield after treatment with 0.5 equiv of Li3(N3N). Both compounds are high-spin complexes bearing three and two unpaired electrons, respectively. Their molecular structures are described revealing a trigonal monopyramidal and trigonal bipyramidal coordination geometry of the chromium center, respectively.
Collapse
Affiliation(s)
- S Schneider
- Fachinstitut für Anorganische und Allgemeine Chemie der Humboldt-Universität zu Berlin, Hessische Strasse 1-2, D-10115 Berlin, Germany
| | | |
Collapse
|
29
|
|
30
|
Abstract
The thermolysis of the phosphinidene complex [Cp*P[W(CO)5]2] (1) in toluene in the presence of tBuC(triple bond)CMe leads to the four-membered ring complexes [[[eta2-C(Me)C(tBu)]Cp*(CO)W(mu3-P)[W(CO)3]][eta4:eta1:eta1-P[W(CO)5]WCp*(CO)C(Me)C(tBu)]] (4) as the major product and [[W[Cp*(CO)2]W(CO)2WCp*(CO)[eta1:eta1-C(Me)C(tBu)]](mu,eta3:eta2:eta1-P2[W(CO)5]] (5). The reaction of 1 with PhC(triple bond)CPh leads to [[W(Co)2[eta2-C(Ph)C(Ph)]][(eta4:eta1-P(W(CO)5]W[Cp*(CO)2)C(Ph)C(Ph)]] (6). The products 4 and 6 can be regarded as the formal cycloaddition products of the phosphido complex intermediate [Cp*(CO)2W(triple bond)P --> W(CO)5] (B), formed by Cp* migration within the phosphinidene complex 1. Furthermore, the reaction of 1 with PhC(triple bond)CPh gives the minor product [[[eta2:eta1-C(Ph)C(Ph)]2[W(CO)4]2][mu,eta1:eta1-P[C(Me)[C(Me)]3C(Me)][C(Ph)](C(Ph)]] (7) as a result of a 1,3-dipolaric cycloaddition of the alkyne into a phosphaallylic subunit of the Cp*P moiety of 1. Compounds 4-7 have been characterized by means of their spectroscopic data as well as by single-crystal X-ray structure analysis.
Collapse
Affiliation(s)
- M Schiffer
- Institut für Anorganische Chemie der Universität Karlsruhe, Germany
| | | |
Collapse
|
31
|
Johnson BP, Schiffer M, Scheer M. Novel Approach to Intermediates Containing a Tungsten−Arsenic Triple Bond. Organometallics 2000. [DOI: 10.1021/om0003436] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brian P. Johnson
- Institut für Anorganische Chemie, Universität Karlsruhe, D-76128 Karlsruhe, Germany
| | - Michael Schiffer
- Institut für Anorganische Chemie, Universität Karlsruhe, D-76128 Karlsruhe, Germany
| | - Manfred Scheer
- Institut für Anorganische Chemie, Universität Karlsruhe, D-76128 Karlsruhe, Germany
| |
Collapse
|
32
|
|
33
|
|
34
|
|
35
|
Affiliation(s)
- Peter Kramkowski
- Institut für Anorganische Chemie der Universität Karlsruhe, D‐76128 Karlsruhe (Germany), Fax: (+49) 721–661921
| | - Gerhard Baum
- Institut für Anorganische Chemie der Universität Karlsruhe, D‐76128 Karlsruhe (Germany), Fax: (+49) 721–661921
| | - Udo Radius
- Institut für Anorganische Chemie der Universität Karlsruhe, D‐76128 Karlsruhe (Germany), Fax: (+49) 721–661921
| | - Martin Kaupp
- Max‐Planck‐Institut für Festkörperforschung Stuttgart, D‐70569 Stuttgart (Germany), Fax: (49) 711–689–17–02
| | - Manfred Scheer
- Institut für Anorganische Chemie der Universität Karlsruhe, D‐76128 Karlsruhe (Germany), Fax: (+49) 721–661921
| |
Collapse
|
36
|
Scheer M, Kramkowski P, Schuster K. An Approach to Novel Complexes with a Tungsten−Phosphorus Triple Bond. Organometallics 1999. [DOI: 10.1021/om990019e] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manfred Scheer
- Institut für Anorganische Chemie der Universität Karlsruhe, D-76128 Karlsruhe, Germany
| | - Peter Kramkowski
- Institut für Anorganische Chemie der Universität Karlsruhe, D-76128 Karlsruhe, Germany
| | - Kay Schuster
- Institut für Anorganische Chemie der Universität Karlsruhe, D-76128 Karlsruhe, Germany
| |
Collapse
|
37
|
Scheer M, Becker U, Magull J. The reaction of P4 with [Cp′Mo(CO)3]2 (Cp′ = η5-C5H4tBu)—the structure of [Cp′Mo(CO)2<(η3-P4){Cr(CO)5}4(H)>]. Polyhedron 1998. [DOI: 10.1016/s0277-5387(97)00480-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
38
|
Wagener T, Frenking G. Theoretical Study of Transition Metal Compounds with Molybdenum− and Tungsten−Phosphorus Triple Bonds1,. Inorg Chem 1998. [DOI: 10.1021/ic971139m] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thomas Wagener
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
| | - Gernot Frenking
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
| |
Collapse
|
39
|
Kramkowski P, Scheer M, Baum G. Different reaction modes of supermesitylphosphaalkyne with [W(CO)5thf]-unusual C-H-activation forming an indanyl substituent. J Organomet Chem 1998. [DOI: 10.1016/s0022-328x(97)00641-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|