1
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Dietz M, Arrowsmith M, Endres L, Paprocki V, Engels B, Braunschweig H. Synthesis and Reactivity of Highly Electron-Rich Zerovalent Group 10 Diborabenzene Pogo-Stick Complexes. J Am Chem Soc 2023; 145:22222-22231. [PMID: 37782897 DOI: 10.1021/jacs.3c08323] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
A cyclic alkyl(amino)carbene (CAAC)-stabilized 1,4-diborabenzene (DBB, 1) reacts with the group 10 precursor [Ni(CO)4] to yield the DBB pogo-stick complex [(η6-DBB)Ni(CO)] (2) as a dark-green crystalline solid. The IR-spectroscopic and X-ray crystallographic data of 2 highlight the strong π-donor properties of the DBB ligand. The reaction of 1 with [M(nbe)2] (M = Pd, Pt; nbe = norbornene) yields the unique zerovalent heavier group 10 arene pogo-stick complexes [(η6-DBB)M(nbe)] (3-M), isolated as dark-purple and black crystalline solids, respectively. 3-Pd and 3-Pt show strong near-IR (NIR) absorptions at 835 and 904 nm, respectively. Time-dependent density functional theory (TD-DFT) calculations show that these result from the S0→S1 excitation, which corresponds to a transfer of electron density from a metal d orbital aligned with the z direction (dxz or dyz) to a d orbital located in the xy plane (dxy or dx2-y2), with the redshift for 3-Pt resulting from the higher spin-orbit coupling (SOC). In complex 2, electron donation from the nickel center into the carbonyl 2π* orbital destabilizes the DBB···Ni interaction, resulting in an absorption at a higher energy. Complexes 2 and 3-M react with [Fe(CO)5] to yield the doubly CO-bridged M(0)→Fe(0) (M = Ni, Pd, Pt) metal-only Lewis pairs (MOLPs) 4-M as black (M = Ni, Pt) and dark-turquoise (M = Pd) crystalline solids. Furthermore, 3-Pt undergoes oxidative Sn-H addition with Ph3SnH to yield the corresponding Pt(II) stannyl hydride, [(η6-DBB)PtH(SnPh3)] (5).
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Affiliation(s)
- Maximilian Dietz
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland 97074, Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland 97074, Würzburg, Germany
| | - Merle Arrowsmith
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland 97074, Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland 97074, Würzburg, Germany
| | - Lukas Endres
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland 97074, Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland 97074, Würzburg, Germany
| | - Valerie Paprocki
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland 97074, Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland 97074, Würzburg, Germany
| | - Bernd Engels
- Institute for Physical and Theoretical Chemistry, Julius-Maximilians-Universität Würzburg, Emil-Fischer-Strasse 42, 97074 Würzburg, Germany
| | - Holger Braunschweig
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland 97074, Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland 97074, Würzburg, Germany
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2
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Cabeza JA, García F, García-Álvarez P, García-Soriano R, Pérez-Carreño E. Synthesis and Some Coordination Chemistry of Phosphane-Difunctionalized Bis(amidinato)-Heavier Tetrylenes: A Previously Unknown Class of PEP Tetrylenes (E = Ge and Sn). Inorg Chem 2023; 62:15502-15509. [PMID: 37696246 PMCID: PMC10523440 DOI: 10.1021/acs.inorgchem.3c01953] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Indexed: 09/13/2023]
Abstract
The bis(amidinato)-heavier tetrylenes E(bzamP)2 (E = Ge (2a) and Sn (2b); bzamP = N-isopropyl-N'-(diphenylphosphanylethyl)benzamidinate), which are equipped with one heavier tetrylene (germylene or stannylene) and two phosphane fragments (one on each amidinate moiety) as coordinable groups, have been synthesized from the benzamidinum salt [H2bzamP]Cl and GeCl2(dioxane) or SnCl2 in 2:1 mol ratio. A preliminary inspection of their coordination chemistry has shown that their amidinate group can also be involved in the bonding with the metal atoms as tridentate ENP and tetradentate PENP' coordination modes have been observed for the ECl(bzamP)2 ligand of [Ir{κ3E,N,P-ECl(bzamP)2}(cod)] (E = Ge (3a) and Sn (3b); cod = η4-1,5-cyclooctadiene) and the E(bzamP)2 ligand of [Ni{κ4E,N,P,P'-E(bzamP)2}] (E = Ge (4a) and Sn (4b)), which are products of reactions of 2a and 2b with [IrCl(cod)]2 (1:0.5 mol ratio) and [Ni(cod)2] (1:1 mol ratio), respectively. These products contain a 5-membered NCNEM ring that results from the insertion of the metal M atom into an E-N bond of 2a and 2b. Additionally, while iridium(I) complexes 3a and 3b are chloridotetryl derivatives (insertion of the tetrylene E atom into the Ir-Cl bond has also occurred) that have an uncoordinated phosphane group, nickel(0) complexes 4a and 4b contain a tetrylene fragment that, maintaining the lone pair, behaves as a σ-acceptor (Z-type) ligand.
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Affiliation(s)
- Javier A. Cabeza
- Departamento
de Química Orgánica e Inorgánica, Centro de Innovación
en Química Avanzada ORFEO−CINQA, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Felipe García
- Departamento
de Química Orgánica e Inorgánica, Centro de Innovación
en Química Avanzada ORFEO−CINQA, Universidad de Oviedo, E-33071 Oviedo, Spain
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Pablo García-Álvarez
- Departamento
de Química Orgánica e Inorgánica, Centro de Innovación
en Química Avanzada ORFEO−CINQA, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Rubén García-Soriano
- Departamento
de Química Orgánica e Inorgánica, Centro de Innovación
en Química Avanzada ORFEO−CINQA, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Enrique Pérez-Carreño
- Departamento
de Química Física y Analítica, Universidad de Oviedo, E-33071 Oviedo, Spain
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3
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Krätschmer F, Sun X, Gillhuber S, Kucher H, Franzke YJ, Weigend F, Roesky PW. Fully Tin-Coated Coinage Metal Ions: A Pincer-Type Bis-stannylene Ligand for Exclusive Tetrahedral Complexation. Chemistry 2022; 29:e202203583. [PMID: 36533713 DOI: 10.1002/chem.202203583] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 12/23/2022]
Abstract
The synthesis of a novel bis-stannylene pincer ligand and its complexation with coinage metals (CuI , AgI and AuI ) are described. All coinage metal centres are in tetrahedral coordination environments in the solid state and are exclusively coordinated by four neutral SnII donors. 119 Sn NMR provided information about the behaviour in solution. All of the isolated compounds have photoluminescent properties, and these were investigated at low and elevated temperatures. Compared to the free bis-stannylene ligand, coordination to coinage metals led to an increase in the luminescence intensity. The new compounds were investigated in detail through all-electron relativistic density functional theory (DFT) calculations.
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Affiliation(s)
- Frederic Krätschmer
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstr. 15, 76131, Karlsruhe, Germany
| | - Xiaofei Sun
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstr. 15, 76131, Karlsruhe, Germany
| | - Sebastian Gillhuber
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstr. 15, 76131, Karlsruhe, Germany
| | - Hannes Kucher
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstr. 15, 76131, Karlsruhe, Germany
| | - Yannick J Franzke
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, 35032, Marburg, Germany
| | - Florian Weigend
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, 35032, Marburg, Germany
| | - Peter W Roesky
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstr. 15, 76131, Karlsruhe, Germany
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4
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Isaac CJ, Miloserdov FM, Pécharman AF, Lowe JP, McMullin CL, Whittlesey MK. Structure and Reactivity of [Ru–Al] and [Ru–Sn] Heterobimetallic PPh 3-Based Complexes. Organometallics 2022; 41:2716-2730. [PMID: 36249448 PMCID: PMC9554919 DOI: 10.1021/acs.organomet.2c00344] [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: 07/08/2022] [Indexed: 11/30/2022]
Abstract
![]()
Treatment of [Ru(PPh3)(C6H4PPh2)2H][Li(THF)2] with AlMe2Cl and SnMe3Cl leads to elimination of LiCl and
CH4 and formation of the heterobimetallic complexes [Ru(C6H4PPh2)2{PPh2C6H4AlMe(THF)}H] 5 and [Ru(PPh3)(C6H4PPh2)(PPh2C6H4SnMe2)] 6, respectively.
The pathways to 5 and 6 have been probed
by variable temperature NMR studies, together with input from DFT
calculations. Complete reaction of H2 occurs with 5 at 60 °C and with 6 at room temperature
to yield the spectroscopically characterized trihydride complexes
[Ru(PPh2)2{PPh2C6H4AlMe}H3] 7 and [Ru(PPh2)2{PPh2C6H4SnMe2}H3] 8. In the presence of CO, 6 forms the acylated phosphine complex, [Ru(CO)2(C(O)C6H4PPh2)(PPh2C6H4SnMe2)] 9, through a series
of intermediates that were identified by NMR spectroscopy in conjunction
with 13CO labeling. Complex 6 undergoes addition
and substitution reactions with the N-heterocyclic carbene 1,3,4,5-tetramethylimidazol-2-ylidene
(IMe4) to give [Ru(IMe4)2(PPh2C6H4)(PPh2C6H4SnMe2)] 10, which converted via rare
N-Me group C–H activation to [Ru(IMe4)(PPh3)(IMe4)′(PPh2C6H4SnMe2)] 11 upon heating at 60 °C and
to a mixture of [Ru(IMe4)2(IMe4)′(PPh2C6H4SnMe2)] 12 and [Ru(PPh3)(PPh2C6H4)(IMe4-SnMe2)′] 13 at 120
°C.
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Affiliation(s)
- Connie J. Isaac
- Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
| | | | | | - John P. Lowe
- Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
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5
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Aman M, Dostál L, Růžičková Z, Turek J, Jambor R. Sn,P-Peri-Substituted Naphthalene as a Ligand for Transition Metals. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michal Aman
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic
| | - Libor Dostál
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic
| | - Zdeňka Růžičková
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic
| | - Jan Turek
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Roman Jambor
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic
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6
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Arsenyeva KV, Klimashevskaya AV, Pashanova KI, Trofimova OY, Chegerev MG, Starikova AA, Cherkasov AV, Fukin GK, Yakushev IA, Piskunov AV. Stable heterocyclic stannylene: The metal, ligand‐centered reactivity, and effective catalytic hydroboration of aldehydes. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kseniya V. Arsenyeva
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Nizhny Novgorod Russian Federation
| | - Anastasiya V. Klimashevskaya
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Nizhny Novgorod Russian Federation
| | - Kira I. Pashanova
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Nizhny Novgorod Russian Federation
| | - Olesya Yu. Trofimova
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Nizhny Novgorod Russian Federation
| | - Maxim G. Chegerev
- Institute of Physical and Organic Chemistry Southern Federal University Rostov‐on‐Don Russian Federation
| | - Alyona A. Starikova
- Institute of Physical and Organic Chemistry Southern Federal University Rostov‐on‐Don Russian Federation
| | - Anton V. Cherkasov
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Nizhny Novgorod Russian Federation
| | - Georgy K. Fukin
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Nizhny Novgorod Russian Federation
| | - Ilya A. Yakushev
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Moscow Russian Federation
| | - Alexandr V. Piskunov
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Nizhny Novgorod Russian Federation
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7
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Aman M, Dostál L, Růžička A, Tydlitát J, Beckmann J, Turek J, Jambor R. Sn, P-coordinated Ru cation: a robust catalyst for aerobic oxidations of benzylamine and benzyl alcohol. Chem Commun (Camb) 2021; 57:12992-12995. [PMID: 34796897 DOI: 10.1039/d1cc06173a] [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
A stable ionic κ2Sn,P-coordinated Ru complex shows excellent catalytic activity in aerobic oxidations of benzylamine and benzyl alcohol. This complex is stabilized by a stannylene-phosphine peri-substituted naphthalene ligand, which can act as either a reducing agent for a Ru(III) complex or as a κ2Sn,P-chelating ligand for Ru(II) compounds.
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Affiliation(s)
- Michal Aman
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Libor Dostál
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Jiří Tydlitát
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Jens Beckmann
- Institut für Anorganische Chemie und Kristallographie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Jan Turek
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.
| | - Roman Jambor
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
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8
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Bajo S, Alcaide MM, López-Serrano J, Campos J. Dehydrogenative Double C-H Bond Activation in a Germylene-Rhodium Complex*. Chemistry 2021; 27:16422-16428. [PMID: 34611944 PMCID: PMC9297988 DOI: 10.1002/chem.202102529] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Indexed: 01/04/2023]
Abstract
Transition metal tetrylene complexes offer great opportunities for molecular cooperation due to the ambiphilic character of the group 14 element. Here we focus on the coordination of germylene [(ArMes2 )2 Ge :] (ArMes =C6 H3 -2,6-(C6 H2 -2,4,6-Me3 )2 ) to [RhCl(COD)]2 (COD=1,5-cyclooctadiene), which yields a neutral germyl complex in which the rhodium center exhibits both η6 - and η2 -coordination to two mesityl rings in an unusual pincer-type structure. Chloride abstraction from this species triggers a singular dehydrogenative double C-H bond activation across the Ge/Rh motif. We have isolated and fully characterized three rhodium-germyl species associated to three C-H cleavage events along this process. The reaction mechanism has been further investigated by computational means, supporting the key cooperative action of rhodium and germanium centers.
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Affiliation(s)
- Sonia Bajo
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) Consejo Superior de Investigaciones Científicas (CSIC) and, University of Sevilla, 1Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - María M Alcaide
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) Consejo Superior de Investigaciones Científicas (CSIC) and, University of Sevilla, 1Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Joaquín López-Serrano
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) Consejo Superior de Investigaciones Científicas (CSIC) and, University of Sevilla, 1Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) Consejo Superior de Investigaciones Científicas (CSIC) and, University of Sevilla, 1Avenida Américo Vespucio 49, 41092, Sevilla, Spain
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9
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Chibde P, Raut RK, Kumar V, Deb R, Gonnade R, Majumdar M. Intramolecularly Double-Donor-Stabilized Stannylene and Its Coordination towards Ag(I) and Au(I) Centers. Chem Asian J 2021; 16:2118-2125. [PMID: 34137196 DOI: 10.1002/asia.202100523] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 06/13/2021] [Indexed: 11/08/2022]
Abstract
The intramolecularly double-donor-stabilized stannylene 1 has been synthesized from the salt-metathesis reaction between two equivalents of lithium pyridine ene-amide L1 and SnCl2 . Compound 1 exhibits dipolar behavior when reacted with B(C6 F5 )3 leading to the zwitterionic compound 2. The reaction of 1 with one equivalent and 0.5 equivalent of AgOTf (OTf=trifluoromethane sulfonate) result in the formation of a stannylene-AgOTf complex 3 and a homoleptic distannylene-silver ionic complex 4, respectively. Analogous to complex 4, the gold(I) complex 5 has been synthesized from the reaction between two equivalents of 1 and 0.5 equivalent of AuCl.SMe2 /Me3 SiOTf. Complex 5 is the first example of homoleptic stannylene-Au(I) ionic complex among the very scarce reports on stannylene-gold(I) coordination complexes. All compounds have been structurally characterized using single crystal X-ray crystallography. Solution-state characterization have been performed using multinuclear NMR techniques. Detailed DFT calculations on the optimized geometries 1 o, 3 o-5 o reveal the change in sp- hybridization on the pyramidal Sn(II) center upon metal coordination and their bonding overlaps.
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Affiliation(s)
- Purva Chibde
- Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
| | - Ravindra K Raut
- Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
| | - Vikas Kumar
- Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
| | - Rahul Deb
- Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
| | - Rajesh Gonnade
- Centre for Material Characterization, CSIR-National Chemical Laboratory Pashan, Pune, 411008, Maharashtra, India
| | - Moumita Majumdar
- Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
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10
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Widemann M, Eichele K, Schubert H, Sindlinger CP, Klenner S, Pöttgen R, Wesemann L. Synthesis and Hydrogenation of Heavy Homologues of Rhodium Carbynes: [(Me 3 P) 2 (Ph 3 P)Rh≡E-Ar*] (E=Sn, Pb). Angew Chem Int Ed Engl 2021; 60:5882-5889. [PMID: 33438371 PMCID: PMC7986155 DOI: 10.1002/anie.202015725] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Indexed: 11/10/2022]
Abstract
Tetrylidynes [(Me3 P)2 (Ph3 P)Rh≡SnAr*] (10) and [(Me3 P)2 (Ph3 P)Rh≡PbAr*] (11) are accessed for the first time via dehydrogenation of dihydrides [(Ph3 P)2 RhH2 SnAr*] (3) and [(Ph3 P)2 RhH2 PbAr*] (7) (Ar*=2,6-Trip2 C6 H3 , Trip=2,4,6-triisopropylphenyl), respectively. Tin dihydride 3 was either synthesized in reaction of the dihydridostannate [Ar*SnH2 ]- with [(Ph3 P)3 RhCl] or via reaction between hydrides [(Ph3 P)3 RhH] and 1 / 2 [(Ar*SnH)2 ]. Homologous lead hydride [(Ph3 P)2 RhH2 PbAr*] (7) was synthesized analogously from [(Ph3 P)3 RhH] and 1 / 2 [(Ar*PbH)2 ]. Abstraction of hydrogen from 3 and 7 supported by styrene and trimethylphosphine addition yields tetrylidynes 10 and 11. Stannylidyne 10 was also characterized by 119 Sn Mössbauer spectroscopy. Hydrogenation of the triple bonds at room temperature with excess H2 gives the cis-dihydride [(Me3 P)2 (Ph3 P)RhH2 PbAr*] (12) and the tetrahydride [(Me3 P)2 (Ph3 P)RhH2 SnH2 Ar*] (14). Complex 14 eliminates spontaneously one equivalent of hydrogen at room temperature to give the dihydride [(Me3 P)2 (Ph3 P)RhH2 SnAr*] (13). Hydrogen addition and elimination at stannylene tin between complexes 13 and 14 is a reversible reaction at room temperature.
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Affiliation(s)
- Max Widemann
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Klaus Eichele
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Hartmut Schubert
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Christian P. Sindlinger
- Institut für Anorganische ChemieGeorg-August Universität GöttingenTammannstrasse 437077GöttingenGermany
| | - Steffen Klenner
- Institut für Anorganische und Analytische ChemieUniversität MünsterCorrensstrasse 3048149MünsterGermany
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische ChemieUniversität MünsterCorrensstrasse 3048149MünsterGermany
| | - Lars Wesemann
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
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11
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Jambor R, Dostál L, Erben M, Růžičková Z, Jirásko R, Hoffmann A. N,C,N-Coordinated Stannylenes as Ligands in Ag(I) and Au(I) Complexes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Roman Jambor
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic
| | - Libor Dostál
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic
| | - Milan Erben
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic
| | - Zdenka Růžičková
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic
| | - Robert Jirásko
- Department of Analytical Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic
| | - Alexander Hoffmann
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany
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12
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Widemann M, Eichele K, Schubert H, Sindlinger CP, Klenner S, Pöttgen R, Wesemann L. Synthese und Hydrierung schwerer Homologe eines Rhodium‐Carbins: [(Me
3
P)
2
(Ph
3
P)Rh≡E‐Ar*] (E=Sn, Pb). Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015725] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Max Widemann
- Institut für Anorganische Chemie Eberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Deutschland
| | - Klaus Eichele
- Institut für Anorganische Chemie Eberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Deutschland
| | - Hartmut Schubert
- Institut für Anorganische Chemie Eberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Deutschland
| | - Christian P. Sindlinger
- Institut für Anorganische Chemie Georg-August Universität Göttingen Tammannstrasse 4 37077 Göttingen Deutschland
| | - Steffen Klenner
- Institut für Anorganische und Analytische Chemie Universität Münster Corrensstrasse 30 48149 Münster Deutschland
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie Universität Münster Corrensstrasse 30 48149 Münster Deutschland
| | - Lars Wesemann
- Institut für Anorganische Chemie Eberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Deutschland
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13
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Arsenyeva KV, Ershova IV, Chegerev MG, Cherkasov AV, Aysin RR, Lalov AV, Fukin GK, Piskunov AV. Reactivity of O,N-heterocyclic germylene and stannylene towards μ-dithio-bis(tricarbonyliron). J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121524] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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14
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Aman M, Dostál L, Mikysek T, Růžičková Z, Mebs S, Beckmann J, Jambor R. Study of Donor–Acceptor Bonds on the
N
‐Coordinated Sn/Pb(II) Atoms in
peri
‐Substituted Naphthalenes: Evidence of Pb→B Interaction. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000696] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Michal Aman
- Department of General and Inorganic Chemistry University of Pardubice 532 10 Pardubice Czech Republic
| | - Libor Dostál
- Department of General and Inorganic Chemistry University of Pardubice 532 10 Pardubice Czech Republic
| | - Tomáš Mikysek
- Department of Analytical Chemistry University of Pardubice 532 10 Pardubice Czech Republic
| | - Zdenka Růžičková
- Department of General and Inorganic Chemistry University of Pardubice 532 10 Pardubice Czech Republic
| | - Stefan Mebs
- Institut für Experimentalphysik Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
| | - Jens Beckmann
- Institut für Anorganische Chemie und Kristallographie Universität Bremen Leobener Straße 7 28359 Bremen Germany
| | - Roman Jambor
- Department of General and Inorganic Chemistry University of Pardubice 532 10 Pardubice Czech Republic
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15
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Poitiers NE, Giarrana L, Huch V, Zimmer M, Scheschkewitz D. Exohedral functionalization vs. core expansion of siliconoids with Group 9 metals: catalytic activity in alkene isomerization. Chem Sci 2020; 11:7782-7788. [PMID: 34094151 PMCID: PMC8163246 DOI: 10.1039/d0sc02861d] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Taking advantage of pendant tetrylene side-arms, stable unsaturated Si6 silicon clusters (siliconoids) with the benzpolarene motif (the energetic counterpart of benzene in silicon chemistry) are successfully employed as ligands towards Group 9 metals. The pronounced σ-donating properties of the tetrylene moieties allow for sequential oxidative addition and reductive elimination events without complete dissociation of the ligand at any stage. In this manner, either covalently linked or core-expanded metallasiliconoids are obtained. [Rh(CO)2Cl]2 inserts into an endohedral Si–Si bond of the silylene-functionalized hexasilabenzpolarene leading to an unprecedented coordination sphere of the Rh centre with five silicon atoms in the initial product, which is subsequentially converted to a simpler derivative under reconstruction of the Si6 benzpolarene motif. In the case of [Ir(cod)Cl]2 (cod = 1,5-cyclooctadiene) a similar Si–Si insertion leads to the contraction of the Si6 cluster core with concomitant transfer of a chlorine atom to a silicon vertex generating an exohedral chlorosilyl group. Metallasiliconoids are employed in the isomerization of terminal alkenes to 2-alkenes as a catalytic benchmark reaction, which proceeds with competitive selectivities and reaction rates in the case of iridium complexes. Unprecedented metallasiliconoids are accessible from a silylene-substituted Si6 siliconoid and Group 9 metal fragments. The isomerization of terminal alkenes to 2-alkenes is competitively catalyzed by these species ( = silicon).![]()
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Affiliation(s)
- Nadine E Poitiers
- Krupp Chair of General and Inorganic Chemistry, Saarland University D-66123 Saarbrücken Germany
| | - Luisa Giarrana
- Krupp Chair of General and Inorganic Chemistry, Saarland University D-66123 Saarbrücken Germany
| | - Volker Huch
- Krupp Chair of General and Inorganic Chemistry, Saarland University D-66123 Saarbrücken Germany
| | - Michael Zimmer
- Krupp Chair of General and Inorganic Chemistry, Saarland University D-66123 Saarbrücken Germany
| | - David Scheschkewitz
- Krupp Chair of General and Inorganic Chemistry, Saarland University D-66123 Saarbrücken Germany
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16
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Cabeza JA, García-Álvarez P, Laglera-Gándara CJ, Pérez-Carreño E. Phosphane-functionalized heavier tetrylenes: synthesis of silylene- and germylene-decorated phosphanes and their reactions with Group 10 metal complexes. Dalton Trans 2020; 49:8331-8339. [PMID: 32515774 DOI: 10.1039/d0dt01727b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stable phosphane-functionalized heavier tetrylenes E(tBu2bzam)pyrmPtBu2 (E = Si (1Si), Ge (1Ge); tBu2bzam = N,N'-ditertbutylbenzamidinate; HpyrmPtBu2 = ditertbutyl(2-pyrrolylmethyl)phosphane) have been prepared by reacting the amidinatotetrylenes E(tBu2bzam)Cl (E = Si, Ge) with LipyrmPtBu2. The reactions of 1Si and 1Ge with selected M0 and MII (M = Ni, Pd, Pt) metal precursors have allowed the synthesis of square-planar [MCl2{κ2E,P-E(tBu2bzam)pyrmPtBu2}] (M = Ni, Pd, Pt; E = Si, Ge), tetrahedral [Ni{κ2E,P-E(tBu2bzam)pyrmPtBu2}(cod)] (E = Si, Ge; cod = 1,5-cyclooctadiene) and triangular [M{κ2E,P-E(tBu2bzam)pyrmPtBu2}(PPh3)] (M = Pd, Pt; E = Si, Ge) complexes, showing that 1Si and 1Ge are excellent Si,P- and Ge,P-chelating ligands that, due to their large steric bulk, are able to stabilize three-coordinate Pd0 and Pt0 complexes.
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Affiliation(s)
- Javier A Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain.
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17
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Feng Z, Jiang Y, Ruan H, Zhao Y, Tan G, Zhang L, Wang X. A diamidinatogermylene as a Z-type ligand in a nickel(0) complex. Dalton Trans 2019; 48:14975-14978. [PMID: 31576866 DOI: 10.1039/c9dt03803e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The reaction of the phosphine functionalized chlorogermylene 1 with Ni(COD)2 (COD = 1,5-cyclooctadiene) afforded the bis-chlorogermylene ligated nickel(0) complex 2 in high yield. The dechlorination reaction of 2 with elemental potassium serendipitously yielded the diamidinatogermylene nickel(0) complex 3. Single-crystal X-ray diffraction analysis reveals that the germanium center in 3 features a pyramidalized geometry, suggesting the germylene moiety in 3 acts as a Z-type ligand, which is further supported by theoretical calculations. Complex 3 represents the first example bearing a Z-type diaminogermylene ligand.
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Affiliation(s)
- Zhongtao Feng
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China.
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18
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Aman M, Dostál L, Růžičková Z, Mebs S, Beckmann J, Jambor R. Ambiguous Role of N → Sn Coordinated Stannylene: Lewis Base or Acid? Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00816] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Michal Aman
- Department of General and Inorganic Chemistry, University of Pardubice, 53210 Pardubice, Czech Republic
| | - Libor Dostál
- Department of General and Inorganic Chemistry, University of Pardubice, 53210 Pardubice, Czech Republic
| | - Zdenka Růžičková
- Department of General and Inorganic Chemistry, University of Pardubice, 53210 Pardubice, Czech Republic
| | - Stefan Mebs
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Jens Beckmann
- Institut für Anorganische Chemie und Kristallographie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Roman Jambor
- Department of General and Inorganic Chemistry, University of Pardubice, 53210 Pardubice, Czech Republic
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19
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Krebs KM, Hanselmann D, Schubert H, Wurst K, Scheele M, Wesemann L. Phosphine-Stabilized Digermavinylidene. J Am Chem Soc 2019; 141:3424-3429. [DOI: 10.1021/jacs.8b13645] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Kilian M. Krebs
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Dominik Hanselmann
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Hartmut Schubert
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Kai Wurst
- Institut für Physikalische und Theoretische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Marcus Scheele
- Institut für Physikalische und Theoretische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Lars Wesemann
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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20
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Weiß S, Schubert H, Wesemann L. Low valent lead hydride chemistry: hydroplumbylation of phenylacetylene and 1,1-dimethylallene. Chem Commun (Camb) 2019; 55:10238-10240. [PMID: 31393472 DOI: 10.1039/c9cc05431f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroplumbylation reactions with a low valent organolead hydride are presented.
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Affiliation(s)
- Sebastian Weiß
- Institut für Anorganische Chemie, Universität Tübingen
- 72076 Tübingen
- Germany
| | - Hartmut Schubert
- Institut für Anorganische Chemie, Universität Tübingen
- 72076 Tübingen
- Germany
| | - Lars Wesemann
- Institut für Anorganische Chemie, Universität Tübingen
- 72076 Tübingen
- Germany
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21
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Raut RK, Sahoo P, Chimnapure D, Majumdar M. Versatile coordinating abilities of acyclic N4 and N2P2 ligand frameworks in conjunction with Sn[N(SiMe3)2]2. Dalton Trans 2019; 48:10953-10961. [DOI: 10.1039/c9dt00617f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The conjoint effort of the –CH2–CH2– linker backbone and coordinating sites in the tetradentate ligand stabilizes a variety of stannylenes.
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Affiliation(s)
- Ravindra K. Raut
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune-411008
- India
| | - Padmini Sahoo
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune-411008
- India
| | - Dipti Chimnapure
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune-411008
- India
| | - Moumita Majumdar
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune-411008
- India
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22
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Bestgen S, Rees NH, Goicoechea JM. Flexible and Versatile Pincer-Type PGeP and PSnP Ligand Frameworks. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00698] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sebastian Bestgen
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, Oxfordshire, United Kingdom
| | - Nicholas H. Rees
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, Oxfordshire, United Kingdom
| | - Jose M. Goicoechea
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, Oxfordshire, United Kingdom
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23
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Brugos J, Cabeza JA, García-Álvarez P, Pérez-Carreño E, Polo D. Synthesis and some coordination chemistry of the PSnP pincer-type stannylene Sn(NCH 2P tBu 2) 2C 6H 4, attempts to prepare the PSiP analogue, and the effect of the E atom on the molecular structures of E(NCH 2P tBu 2) 2C 6H 4 (E = C, Si, Ge, Sn). Dalton Trans 2018; 47:4534-4544. [PMID: 29509192 DOI: 10.1039/c7dt04561a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The non-donor-stabilized PSnP pincer-type stannylene Sn(NCH2PtBu2)2C6H4 (1) has been prepared by treating SnCl2 with Li2(NCH2PtBu2)2C6H4. All attempts to synthesize the analogous PSiP silylene by reduction of the (previously unknown) silanes SiCl2(NCH2PtBu2)2C6H4 (2), SiHCl(NCH2PtBu2)2C6H4 (3) and SiH(HMDS)(NCH2PtBu2)2C6H4 (4; HMDS = N(SiMe3)2) have been unsuccessful. The almost planar (excluding the tert-butyl groups) molecular structure of stannylene 1 (determined by X-ray crystallography) has been rationalized with the help of DFT calculations, which have shown that, in the series of diphosphanetetrylenes E(NCH2PtBu2)2C6H4 (E = C, Si, Ge, Sn), the most stable conformation of the compounds with E = Ge and Sn has both P atoms very close to the EN2C6H4 plane, near (interacting with) the E atom, whereas for the compounds with E = C and Si, both phosphane groups are located at one side of the EN2C6H4 plane and far away from the E atom. The size of the E atom and the strength of stabilizing donor-acceptor PE interactions (both increase on going down in group 14) are key factors in determining the molecular structures of these diphosphanetetrylenes. The syntheses of the chloridostannyl complexes [Rh{κ2Sn,P-SnCl(NCH2PtBu2)2C6H4}(η4-cod)] (5), [RuCl{κ2Sn,P-SnCl(NCH2PtBu2)2C6H4}(η6-cym)] (6) and [IrCl{κ2Sn,P-SnCl(NCH2PtBu2)2C6H4}(η5-C5Me5)] (7) have demonstrated the tendency of stannylene 1 to insert its Sn atom into M-Cl bonds of transition metal complexes and the preference of the resulting PSnP chloridostannyl group to act as a κ2Sn,P-chelating ligand, maintaining an uncoordinated phosphane fragment. X-ray diffraction data (of 6), 31P{1H} NMR data (of 5-7) and DFT calculations (on 6) are consistent with the existence of a weak PSn interaction involving the non-coordinated P atom of complexes 5-7, similar to that found in stannylene 1.
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Affiliation(s)
- Javier Brugos
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain.
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