1
|
Zimmermann L, Riesinger C, Scheer M. Potential of Mixed Dipnictogen Molybdenum Complexes in the Self-Assembly of Thallium Coordination Compounds. Inorg Chem 2024; 63:11168-11175. [PMID: 38842464 PMCID: PMC11186011 DOI: 10.1021/acs.inorgchem.4c00867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/15/2024] [Accepted: 05/28/2024] [Indexed: 06/07/2024]
Abstract
The coordination chemistry of the homo- and heterodipnictogen tetrahedrane complexes [{CpMo(CO)2}2(μ,η2:2-EE')] (E, E' = P, As, Sb) (A-F) toward Tl[BArF24] ([BArF24]- = [B(3,5-C6H3(CF3)2)4]-) was studied. Controlled by the used tetrahedranes A-F, and thus depending on the respective pnictogen atoms, the monomers [Tl(η2-A)][BArF24] ([A]Tl) and [Tl(η2-B)][BArF24] ([B]Tl), the double substituted [Tl(η1-C)2][BArF24] ([C]2Tl) or the even higher aggregated compounds [Tl2(η2-D)3(μ,η2:1-D)(μ,η1:1-D)][BArF24]2 ([D]5Tl2), [Tl2(η2-E)2(μ,η2:1-E)3] [BArF24]2 ([E]5Tl2) and [Tl2(η2-F)3(μ,η2:1-F)3][BArF24]2 ([F]6Tl2) were obtained. Utilization of [BArF24]- promises additional stabilization of TlI via η6-coordination of two of its aryl rings as found in compounds [A]Tl, [B]Tl and [C]2Tl. Within the series of reactivity of A-F, the heavier congeners D, E and F tend to form larger aggregates in which σ(E-E') bond contributions to the coordination behavior were observed. Interatomic distances suggest the presence of Tl···Tl interactions in [E]5Tl2 and [F]6Tl2. The features of the respective coordination compounds were studied in the solid-state as well as in solution. For the latter at least a partial dissociation of the assemblies in solution was indicated. The isolated solid-state aggregates are the first examples of heterodipnictogen units as ligands in self-assembled TlI-based coordination compounds.
Collapse
Affiliation(s)
- Lisa Zimmermann
- Institute of Inorganic Chemistry University
of Regensburg 93040 Regensburg, Germany
| | - Christoph Riesinger
- Institute of Inorganic Chemistry University
of Regensburg 93040 Regensburg, Germany
| | - Manfred Scheer
- Institute of Inorganic Chemistry University
of Regensburg 93040 Regensburg, Germany
| |
Collapse
|
2
|
Goodwin CAP. What is a Sandwich Complex? Inorg Chem 2024; 63:9363-9365. [PMID: 38306455 DOI: 10.1021/acs.inorgchem.4c00243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Affiliation(s)
- Conrad A P Goodwin
- Department of Chemistry, The University of Manchester, Manchester M13 9PL, United Kingdom
| |
Collapse
|
3
|
Zhang WQ, Li ZS, McGrady JE, Sun ZM. Synthesis and Characterization of [Fe 3 (As 3 ) 3 (As 4 )] 3- , a Binary Fe/As Zintl Cluster With an Fe 3 Core. Angew Chem Int Ed Engl 2023; 62:e202217316. [PMID: 36642696 DOI: 10.1002/anie.202217316] [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: 11/25/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 01/17/2023]
Abstract
We report here the synthesis and structural characterization of the first binary iron arsenide cluster anion, [Fe3 (As3 )3 (As4 )]3- , present in both [K([2.2.2]crypt)]3 [Fe3 (As3 )3 (As4 )] (1) and [K(18-crown-6)]3 [Fe3 (As3 )3 (As4 )]⋅en (2). The cluster contains an Fe3 triangle with three short Fe-Fe bond lengths (2.494(1) Å, 2.459(1) Å and 2.668(2) Å for 1, 2.471(1) Å, 2.473(1) Å and 2.660(1) Å for 2), bridged by a 2-butene-like As4 unit. An analysis of the electronic structure using DFT reveals a triplet ground state with direct Fe-Fe bonds stabilizing the Fe3 core.
Collapse
Affiliation(s)
- Wei-Qiang Zhang
- State Key Laboratory of Element-Organic Chemistry, Tianjin Key Lab for Rare Earth Materials and Applications, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Zi-Sheng Li
- Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - John E McGrady
- Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Zhong-Ming Sun
- State Key Laboratory of Element-Organic Chemistry, Tianjin Key Lab for Rare Earth Materials and Applications, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| |
Collapse
|
4
|
Garbagnati A, Seidl M, Piesch M, Balázs G, Scheer M. Halogenation of heterobimetallic triple-decker complexes containing an E5 middle deck (E = P, As). Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115854] [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]
|
5
|
Organometallic polyphosphorus complexes as diversified building blocks in coordination chemistry. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213995] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
6
|
Kelly JA, Gramüller J, Gschwind RM, Wolf R. Low-oxidation state cobalt-magnesium complexes: ion-pairing and reactivity. Dalton Trans 2021; 50:13985-13992. [PMID: 34542141 PMCID: PMC8507399 DOI: 10.1039/d1dt02621f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 11/21/2022]
Abstract
Magnesium cobaltates (Arnacnac)MgCo(COD)2 (1-3) were synthesised by reacting (Arnacnac)MgI(OEt2) with K[Co(η4-COD)2] (COD = 1,5-cyclooctadiene) [Arnacnac = CH(ArNCMe)2; Ar = 2,4,6-Me3-C6H2 (Mes), 2,6-Et2-C6H3 (Dep), 2,6-iPr2-C6H3Mes (Dipp)]. Compounds 1-3 form contact ion-pairs in toluene, while solvent separated ion-pairs are formed in THF. The effect of ion-pairing on the reactivity is illustrated by reaction of 2 with tert-butylphosphaalkyne, which affords distinct 1,3-diphosphacyclobutadiene complexes. The heteroleptic sandwich complex [(Depnacnac)MgCo(P2C2tBu2)]2 (4) is selectively formed in toluene, while the homoleptic bis(1,3-diphosphacyclobutadiene) complex [(Depnacnac)Mg(THF)3][Co(P2C2tBu2)2] (5) is obtained in THF. Complex 4 is a precursor to further unusual phosphaorganometallic compounds. Substitution of the labile COD ligand in 4 by white phosphorus (P4) enabled the synthesis of the phosphorus-rich sandwich compound [(Depnacnac)MgCoP4(P2C2tBu2)]2 (6). The heterobimetallic complex (Cp*NiP2C2tBu2)Co(COD) (7) was isolated after treatment of 4 with Cp*Ni(acac) (Cp* = C5Me5, acac = acetylacetonate).
Collapse
Affiliation(s)
- John A Kelly
- University of Regensburg, Institute of Inorganic Chemistry, 93040 Regensburg, Germany.
| | - Johannes Gramüller
- University of Regensburg, Institute of Organic Chemistry, 93040 Regensburg, Germany
| | - Ruth M Gschwind
- University of Regensburg, Institute of Organic Chemistry, 93040 Regensburg, Germany
| | - Robert Wolf
- University of Regensburg, Institute of Inorganic Chemistry, 93040 Regensburg, Germany.
| |
Collapse
|
7
|
Giusti L, Landaeta VR, Vanni M, Kelly JA, Wolf R, Caporali M. Coordination chemistry of elemental phosphorus. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213927] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
8
|
Heinl V, Seitz AE, Balázs G, Seidl M, Scheer M. Transfer of polyantimony units. Chem Sci 2021; 12:9726-9732. [PMID: 34349944 PMCID: PMC8293801 DOI: 10.1039/d1sc02498a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/16/2021] [Indexed: 12/04/2022] Open
Abstract
Transfer reagents are useful tools in chemistry to access metastable compounds. The reaction of [Cp′′2ZrCl2] with KSb(SiMe3)2 leads to the formation of the novel polyantimony triple decker complex [(Cp′′Zr)2(μ,η1:1:1:1:1:1-Sb6)] (1, Cp′′ = 1,3-di-tertbutyl-cyclopentadienyl), containing a chair-like Sb66− ligand. Compound 1 represents a valuable transfer reagent to form novel antimony ligand complexes. Thus, the reaction of 1 with CpR-substituted transition metal halides of nickel, cobalt and iron leads to the formation of a variety of novel Sbn ligand complexes, such as the cubane-like compounds [(Cp′′′Ni)4(μ3-Sb)4] (2) and [(Cp′′′Co)4(μ3-Sb4)] (3a) or the complexes [(CpBnCo)3(μ3-Sb)2] (4) and [(Cp′′′Fe)3(μ3-Sb)2] (5), representing a trigonal bipyramidal structure. Moreover, beside the transfer of Sb1 units, also the complete entity can be transferred as seen in the iron complex [(Cp′′′Fe)3(μ3,η4:4:4-Sb6)] (6). DFT calculations shed light on the bonding situation of the products. The synthesis and characterization of the unique polyantimony complex [(Cp′′Zr)2(μ,η1:1:1:1:1:1-Sb6)] (1) is described. Compound 1 was used as antimony source to transfer Sbn units to late transition metal fragments [CpRM] (M = Fe, Co, Ni).![]()
Collapse
Affiliation(s)
- Veronika Heinl
- Institut für Anorganische Chemie, Universität Regensburg 93040 Regensburg Germany https://www.uni-regensburg.de/chemie-pharmazie/anorganische-chemie-scheer/
| | - Andreas E Seitz
- Institut für Anorganische Chemie, Universität Regensburg 93040 Regensburg Germany https://www.uni-regensburg.de/chemie-pharmazie/anorganische-chemie-scheer/
| | - Gábor Balázs
- Institut für Anorganische Chemie, Universität Regensburg 93040 Regensburg Germany https://www.uni-regensburg.de/chemie-pharmazie/anorganische-chemie-scheer/
| | - Michael Seidl
- Institut für Anorganische Chemie, Universität Regensburg 93040 Regensburg Germany https://www.uni-regensburg.de/chemie-pharmazie/anorganische-chemie-scheer/
| | - Manfred Scheer
- Institut für Anorganische Chemie, Universität Regensburg 93040 Regensburg Germany https://www.uni-regensburg.de/chemie-pharmazie/anorganische-chemie-scheer/
| |
Collapse
|
9
|
Müller J, Balázs G, Scheer M. From a P 4 butterfly scaffold to cyclo- and catena-P 4 units. Chem Commun (Camb) 2021; 57:2257-2260. [PMID: 33529292 DOI: 10.1039/d0cc08328c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The reactivity of [{Cp'''Fe(CO)2}2(μ,η1 : 1-P4)] (1) towards half-sandwich complexes of Ru(ii), Rh(iii), and Ir(iii) is studied. The coordination of these Lewis acids leads to a rearrangement of the P4 butterfly unit to form complexes with either an aromatic cyclo-P4R2 unit (R = Cp'''Fe(CO)2) or a catena-tetraphosphaene entity.
Collapse
Affiliation(s)
- Julian Müller
- Institut für Anorganische Chemie, Universität Regensburg, Regensburg 93040, Germany.
| | - Gábor Balázs
- Institut für Anorganische Chemie, Universität Regensburg, Regensburg 93040, Germany.
| | - Manfred Scheer
- Institut für Anorganische Chemie, Universität Regensburg, Regensburg 93040, Germany.
| |
Collapse
|
10
|
Hierlmeier G, Coburger P, Leest NP, Bruin B, Wolf R. Aufbau‐ und Abbaureaktionen von weißem Phosphor induziert durch N‐heterocyclische Carbenkomplexe von Nickel(0). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Gabriele Hierlmeier
- Universität Regensburg Institut für Anorganische Chemie 93040 Regensburg Deutschland
| | - Peter Coburger
- Universität Regensburg Institut für Anorganische Chemie 93040 Regensburg Deutschland
| | - Nicolaas P. Leest
- University of Amsterdam van 't Hoff Institute for Molecular Sciences Science Park 904 1098 XH Amsterdam Niederlande
| | - Bas Bruin
- University of Amsterdam van 't Hoff Institute for Molecular Sciences Science Park 904 1098 XH Amsterdam Niederlande
| | - Robert Wolf
- Universität Regensburg Institut für Anorganische Chemie 93040 Regensburg Deutschland
| |
Collapse
|
11
|
Hierlmeier G, Coburger P, van Leest NP, de Bruin B, Wolf R. Aggregation and Degradation of White Phosphorus Mediated by N-Heterocyclic Carbene Nickel(0) Complexes. Angew Chem Int Ed Engl 2020; 59:14148-14153. [PMID: 32348622 PMCID: PMC7496536 DOI: 10.1002/anie.202004020] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Indexed: 11/21/2022]
Abstract
The reaction of zerovalent nickel compounds with white phosphorus (P4) is a barely explored route to binary nickel phosphide clusters. Here, we show that coordinatively and electronically unsaturated N‐heterocyclic carbene (NHC) nickel(0) complexes afford unusual cluster compounds with P1, P3, P5 and P8 units. Using [Ni(IMes)2] [IMes=1,3‐bis(2,4,6‐trimethylphenyl)imidazolin‐2‐ylidene], electron‐deficient Ni3P4 and Ni3P6 clusters have been isolated, which can be described as superhypercloso and hypercloso clusters according to the Wade–Mingos rules. Use of the bulkier NHC complexes [Ni(IPr)2] or [(IPr)Ni(η6‐toluene)] [IPr=1,3‐bis(2,6‐diisopropylphenyl)imidazolin‐2‐ylidene] affords a closo‐Ni3P8 cluster. Inverse‐sandwich complexes [(NHC)2Ni2P5] (NHC=IMes, IPr) with an aromatic cyclo‐P5− ligand were identified as additional products.
Collapse
Affiliation(s)
- Gabriele Hierlmeier
- Universität Regensburg, Institut für Anorganische Chemie, 93040, Regensburg, Germany
| | - Peter Coburger
- Universität Regensburg, Institut für Anorganische Chemie, 93040, Regensburg, Germany
| | - Nicolaas P van Leest
- University of Amsterdam, van 't Hoff Institute for Molecular Sciences, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Bas de Bruin
- University of Amsterdam, van 't Hoff Institute for Molecular Sciences, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Robert Wolf
- Universität Regensburg, Institut für Anorganische Chemie, 93040, Regensburg, Germany
| |
Collapse
|
12
|
Spitzer F, Balázs G, Graßl C, Scheer M. Iron β-diiminate complexes with As2-, As4- and As8-ligands. Chem Commun (Camb) 2020; 56:13209-13212. [DOI: 10.1039/d0cc05173j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Depending on the sterics of the flanking group at the β-diiminate ligand at Fe(i) a tetramerisation or dimerisation of As4 units is observed; for the latter case the ligand conformation was influenced by the crystallization temperature.
Collapse
Affiliation(s)
- Fabian Spitzer
- Institut für Anorganische Chemie
- Universität Regensburg
- 93040 Regensburg
- Germany
| | - Gábor Balázs
- Institut für Anorganische Chemie
- Universität Regensburg
- 93040 Regensburg
- Germany
| | - Christian Graßl
- Institut für Anorganische Chemie
- Universität Regensburg
- 93040 Regensburg
- Germany
| | - Manfred Scheer
- Institut für Anorganische Chemie
- Universität Regensburg
- 93040 Regensburg
- Germany
| |
Collapse
|
13
|
Abstract
The generation and handling of the light-sensitive and metastable yellow arsenic (As4) is extremely challenging. In view of recent breakthroughs in synthesizing As4 storage materials and transfer reagents, the more intensive use of yellow arsenic as a source for further reactions can be expected. Given these aspects, the current stage of knowledge of the direct use of As4 is comprehensively summarized in the present review, which lists the activation of As4 by main group elements as well as transition metal compounds (including the f-block elements). Moreover, it also partly compares the reaction outcomes in relation to the corresponding reactions of P4. The possibility of using alternative sources for generating arsenic moieties and compounds is also discussed. The release of As4 molecules from precursor compounds and the use of transfer reagents for polyarsenic entities open up new synthetic pathways to avoid the direct generation of yellow arsenic solutions and to ensure its smooth usage for subsequent reactions.
Collapse
Affiliation(s)
- Michael Seidl
- Institut für Anorganische Chemie , Universität Regensburg , 93043 Regensburg , Germany
| | - Gábor Balázs
- Institut für Anorganische Chemie , Universität Regensburg , 93043 Regensburg , Germany
| | - Manfred Scheer
- Institut für Anorganische Chemie , Universität Regensburg , 93043 Regensburg , Germany
| |
Collapse
|
14
|
Spitzer F, Balázs G, Graßl C, Keilwerth M, Meyer K, Scheer M. Der Einfluss von β‐Diiminato‐Liganden auf die As
4
‐Aktivierung durch Cobalt‐Komplexe. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802888] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fabian Spitzer
- Institut für Anorganische Chemie Universität Regensburg Universitätsstraße 31 93040 Regensburg Deutschland
| | - Gábor Balázs
- Institut für Anorganische Chemie Universität Regensburg Universitätsstraße 31 93040 Regensburg Deutschland
| | - Christian Graßl
- Institut für Anorganische Chemie Universität Regensburg Universitätsstraße 31 93040 Regensburg Deutschland
| | - Martin Keilwerth
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) Department Chemie und Pharmazie Anorganische Chemie Egerlandstraße 1 91058 Erlangen Deutschland
| | - Karsten Meyer
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) Department Chemie und Pharmazie Anorganische Chemie Egerlandstraße 1 91058 Erlangen Deutschland
| | - Manfred Scheer
- Institut für Anorganische Chemie Universität Regensburg Universitätsstraße 31 93040 Regensburg Deutschland
| |
Collapse
|
15
|
Spitzer F, Balázs G, Graßl C, Keilwerth M, Meyer K, Scheer M. The Influence of β-diiminato Ligands on As 4 Activation by Cobalt Complexes. Angew Chem Int Ed Engl 2018; 57:8760-8764. [PMID: 29676841 PMCID: PMC6099418 DOI: 10.1002/anie.201802888] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Indexed: 11/26/2022]
Abstract
In a systematic study of the activation of As4, three [LCo(tol)] (L=β‐diiminato) complexes have revealed different steric and electronic influences. 2,6‐Diisopropylphenyl (Dipp) and 2,6‐dimethylphenyl (dmp) flanking groups were used, one of the ligands with H backbone substituents (β‐dialdiminate L0) and two with Me substituents (β‐diketiminates L3 and L1). In the reaction with As4, different dinuclear products [(LCo)2As4] (LM=L0 (1), L1 (2), L3 (3)) were isolated, with all showing differently shaped [Co2As4] cores in the solid state: octahedral in 1, prismatic in 2, and asterane‐like in 3. Thermal treatment of 3 leads to the abstraction of one arsenic atom to yield [(L3Co)2As3] (4). All products were comprehensively characterized by single‐crystal X‐ray diffraction, FD‐MS, and 1H NMR spectroscopy. A rational explanation for the different reactivity is also proposed and DFT calculations shed light on the nature of the highly flexible [Co2As4] cores.
Collapse
Affiliation(s)
- Fabian Spitzer
- Institut für Anorganische ChemieUniversität RegensburgUniversitätsstrasse 3193040RegensburgGermany
| | - Gábor Balázs
- Institut für Anorganische ChemieUniversität RegensburgUniversitätsstrasse 3193040RegensburgGermany
| | - Christian Graßl
- Institut für Anorganische ChemieUniversität RegensburgUniversitätsstrasse 3193040RegensburgGermany
| | - Martin Keilwerth
- Friedrich-Alexander University Erlangen-Nürnberg (FAU)Department of Chemistry and PharmacyInorganic ChemistryEgerlandstrasse 191058ErlangenGermany
| | - Karsten Meyer
- Friedrich-Alexander University Erlangen-Nürnberg (FAU)Department of Chemistry and PharmacyInorganic ChemistryEgerlandstrasse 191058ErlangenGermany
| | - Manfred Scheer
- Institut für Anorganische ChemieUniversität RegensburgUniversitätsstrasse 3193040RegensburgGermany
| |
Collapse
|