1
|
Rina YA, Schmidt JAR. Alpha-metalated N, N-dimethylbenzylamine rare-earth metal complexes and their catalytic applications. Dalton Trans 2024. [PMID: 38757291 DOI: 10.1039/d4dt00826j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
This perspective summarizes our group's extensive research in the realm of organometallic lanthanide complexes, while also placing the catalytic reactions supported by these species within the context of known lanthanide catalysis worldwide, with a specific focus on phosphorus-based catalytic reactions such as intermolecular hydrophosphination and hydrophosphinylation. α-Metalated N,N-dimethylbenzylamine ligands have been utilized to generate homoleptic lanthanide complexes, which have subsequently proven to be highly active lanthanum-based catalysts. The main goal of our research program has been to enhance the catalytic efficiency of lanthanum-based complexes, which began with initial successes in the stoichiometric synthesis of organometallic lanthanide complexes and utilization of these species in catalytic hydrophosphination reactions. Not only have these species supported traditional lanthanide catalysis, such as the hydrophosphination of heterocumulenes like carbodiimides, isocyanates, and isothiocyanates, but they have also been effective for a plethora of catalytic reactions tested thus far, including the hydrophosphinylation and hydrophosphorylation of nitriles, hydrophosphination and hydrophosphinylation of alkynes and alkenes, and the heterodehydrocoupling of silanes and amines. Each of these catalytic transformations is meritorious in its own right, offering new synthetic routes to generate organic scaffolds with enhanced functionality while concurrently minimizing both waste generation and energy consumption. Objectives: We aim for the research summary presented herein to inspire and encourage other researchers to investigate f-element based stoichiometric and catalytic reactions. Our efforts in this field began with the recognition that potassium salts of benzyldimethylamine preferred deprotonation at the α-position, rather than the ortho-position, and we wondered if this regiochemistry would be retained in the formation of lanthanide complexes. The pursuit of this simple idea led first to a series of structurally fascinating homoleptic organometallic lanthanide complexes with surprisingly good stability. Fundamental studies of the protonolysis chemistry of these complexes ultimately revealed highly versatile lanthanide-based precatalysts that have propelled a catalytic investigation spanning more than a decade. We anticipate that this summative perspective will animate the synthetic as well as biological communities to consider La(DMBA)3-based catalytic methods in the synthesis of functionalized organic scaffolds as an atom-economic, convenient, and efficient methodology. Ultimately, we envision our work making a positive impact on the advancement of novel chemical transformations and contributing to progress in various fields of science and technology.
Collapse
Affiliation(s)
- Yesmin Akter Rina
- Department of Chemistry & Biochemistry, School of Green Chemistry and Engineering, College of Natural Sciences and Mathematics, The University of Toledo, 2801 W. Bancroft St. MS 602, Toledo, Ohio 43606-3390, USA.
| | - Joseph A R Schmidt
- Department of Chemistry & Biochemistry, School of Green Chemistry and Engineering, College of Natural Sciences and Mathematics, The University of Toledo, 2801 W. Bancroft St. MS 602, Toledo, Ohio 43606-3390, USA.
| |
Collapse
|
2
|
Abstract
The number of rare earth (RE) starting materials used in synthesis is staggering, ranging from simple binary metal-halide salts to borohydrides and "designer reagents" such as alkyl and organoaluminate complexes. This review collates the most important starting materials used in RE synthetic chemistry, including essential information on their preparations and uses in modern synthetic methodologies. The review is divided by starting material category and supporting ligands (i.e., metals as synthetic precursors, halides, borohydrides, nitrogen donors, oxygen donors, triflates, and organometallic reagents), and in each section relevant synthetic methodologies and applications are discussed.
Collapse
Affiliation(s)
- Fabrizio Ortu
- School of Chemistry, University of Leicester, LE1 7RH Leicester, U.K.
| |
Collapse
|
3
|
Kim J. Metal complexes containing
silicon‐based
pincer ligands: Reactivity and application in small molecule activation. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jin Kim
- Department of Chemistry Sunchon National University Suncheon Jeollanam‐do Republic of Korea
| |
Collapse
|
4
|
Ali S, Shephard A, Wang J, Guo Z, Davies M, Deacon G, Junk PC. Lanthanoid biphenolates as a rich source of lanthanoid-main group heterobimetallic complexes. Chem Asian J 2022; 17:e202101328. [PMID: 35034432 PMCID: PMC9303937 DOI: 10.1002/asia.202101328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/11/2022] [Indexed: 11/24/2022]
Abstract
Several new trivalent dinuclear rare earth 2,2’‐methylenebis(6‐tert‐butyl‐4‐methylphenolate) (mbmp2−) complexes with the general form [Ln2(mbmp)3(thf)n] (Ln=Sm 1, Tb 2 (n=3), and Ho 3, Yb 4 (n=2), and a tetravalent cerium complex [Ce(mbmp)2(thf)2] (5) have been synthesised by RTP (redox transmetallation/protolysis) reactions from lanthanoid metals, Hg(C6F5)2 and the biphenol mbmpH2. These new complexes and some previously reported partially protonated rare earth biphenolate complexes [Ln(mbmp)(mbmpH)(thf)n] react with lithium, aluminium, potassium and zinc organometallic reagents to form lanthanoid‐main group heterobimetallic species. When reaction mixtures containing the Ln biphenolate complexes were treated with n‐butyllithium, both molecular ([Li(thf)2Ln(mbmp)2(thf)n] (Ln=La 6, Pr 7 (n=2) and Er 8, Yb 9, and Lu 10 (n=1)) and charge separated ([Li(thf)4][Ln(mbmp)2(thf)2] (Ln=Y 11, Sm 12, Dy 13, and Ho 14) complexes were isolated. Treatment with trimethylaluminium also led to isolation of molecular ([AlMe2Ln(mbmp)2(thf)2] (Ln=Pr 15, Sm 16, and Tb 17)) and ionic [La(mbmp)(thf)5][AlMe2(mbmp)] (18) complexes. One gadolinium‐potassium ([K(thf)3Gd(mbmp)2(thf)2] (19)), and one ytterbium‐zinc species ([ZnEtYb(mbmp)2(thf)] (20)) were isolated from treatment of reaction mixtures with potassium bis(trimethylsilyl)amide and diethylzinc respectively.
Collapse
Affiliation(s)
- Safaa Ali
- James Cook University, Chemistry, AUSTRALIA
| | | | - Jun Wang
- James Cook University, Chemistry, AUSTRALIA
| | | | | | - Glen Deacon
- Monash University, School of Chemistry, AUSTRALIA
| | - Peter Courtney Junk
- James Cook University, Dept. of Chemistry, James Cook Drive, 4811, Townsville, AUSTRALIA
| |
Collapse
|
5
|
Paparo A, Nguyen ALP, Silvia JS, Spaniol TP, Maron L, Cummins CC, Okuda J. Dihydrogen cleavage by a dimetalloxycarbene-borane frustrated Lewis pair. Dalton Trans 2021; 50:10692-10695. [PMID: 34313284 DOI: 10.1039/d1dt02273c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A frustrated Lewis pair of dititanoxycarbene [(Ti(N[tBu]Ar)3)2(μ-CO2)] (Ar = 3,5-Me2C6H3) and B(C6F5)3 cleaved dihydrogen under ambient conditions to give the zwitterionic formate [(Ti(N[tBu]Ar)3)2(μ-OCHO-ηO:ηO')(B(C6F5)3)] and the hydrido borate [Ti(N[tBu]Ar)3][HB(C6F5)3].
Collapse
Affiliation(s)
- Albert Paparo
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056 Aachen, Germany.
| | - Anh L P Nguyen
- School of Chemistry, Monash University, PO Box 23 and Clayton, VIC 3800, Australia
| | - Jared S Silvia
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Thomas P Spaniol
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056 Aachen, Germany.
| | - Laurent Maron
- Université de Toulouse et CNRS, INSA, UPS, UMR 5215, LPCNO135 Avenue de Rangueil, F-31077 Toulouse, France
| | - Christopher C Cummins
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Jun Okuda
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056 Aachen, Germany.
| |
Collapse
|
6
|
Khristolyubov DO, Lyubov DM, Trifonov AA. Alkyl complexes of divalent lanthanides and heavy alkaline earth metals. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr4992] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
7
|
Selikhov AN, Cherkasov AV, Nelyubina YV, Trifonov AA. Highly basic alkyl-substituted bis(benzhydryl) CaII and YbII complexes with β-CH–M agostic interactions. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.04.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
8
|
Selikhov AN, Cherkasov AV, Nelyubina YV, Trifonov AA. Highly basic alkyl-substituted bis(benzhydryl) CaII and YbII complexes with β-CH–M agostic interactions. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
9
|
Lyubov DM, Trifonov AA. Ln( ii) alkyl complexes: from elusive exotics to catalytic applications. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00206f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, structures and reactivity of isolable LnII (Ln = Sm, Eu, Yb) alkyl complexes are discussed. The application of LnII alkyl derivatives in a variety of catalytic reactions is considered as well.
Collapse
Affiliation(s)
- Dmitry M. Lyubov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences
- Moscow
| |
Collapse
|
10
|
Werner D, Bayer U, Schädle D, Anwander R. Emergence of a New [NNN] Pincer Ligand via Si-H Bond Activation and β-Hydride Abstraction at Tetravalent Cerium. Chemistry 2020; 26:12194-12205. [PMID: 32239686 PMCID: PMC7540680 DOI: 10.1002/chem.202000625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/19/2020] [Indexed: 01/08/2023]
Abstract
The cerium(IV) pyrazolate complexes [Ce(Me2 pz)4 ]2 and [Ce(Me2 pz)4 (thf)] initiate β-hydride abstraction of the bis(dimethylsilyl)amido moiety, to afford a heteroleptic cerium(IV) species containing a dimethylpyrazolyl-substituted silylamido ligand, namely [Ce(Me2 pz)3 (bpsa)] (bpsa=bis((3,5-dimethylpyrazol-1-yl)dimethylsilyl)amido; Me2 pz =3,5-dimethylpyrazolato), along with some cerium(III) species. Remarkably, the nucleophilic attack of the pyrazolyl at the silicon atom and concomitant Si-H-bond cleavage is restricted to the tetravalent cerium oxidation state and appears to proceed via the formation of a transient cerium(IV) hydride, which engages in immediate redox chemistry. When [Ce(Me2 pz)4 ]2 is treated with [Li{N(SiMe3 )2 }], that is, in the absence of the SiH functionality, any redox chemistry did not occur. Instead, the ceric ate complex [LiCe2 (Me2 pz)9 ] and the stable mixed-ligand ceric species [Ce(Me2 pz)2 {N(SiMe3 )2 }2 ] were obtained.
Collapse
Affiliation(s)
- Daniel Werner
- Institut für Anorganische ChemieUniversity of Tübingen (EKUT)Auf der Morgenstelle 1872076TübingenGermany
| | - Uwe Bayer
- Institut für Anorganische ChemieUniversity of Tübingen (EKUT)Auf der Morgenstelle 1872076TübingenGermany
| | - Dorothea Schädle
- Institut für Anorganische ChemieUniversity of Tübingen (EKUT)Auf der Morgenstelle 1872076TübingenGermany
| | - Reiner Anwander
- Institut für Anorganische ChemieUniversity of Tübingen (EKUT)Auf der Morgenstelle 1872076TübingenGermany
| |
Collapse
|
11
|
Liu X, Wen Q, Xiang L, Leng X, Chen Y. Samarium(II) Monoalkyl Complex Supported by a β-Diketiminato-Based Tetradentate Ligand: Synthesis, Structure, and Catalytic Hydrosilylation of Internal Alkynes. Chemistry 2020; 26:5494-5499. [PMID: 32157760 DOI: 10.1002/chem.202000342] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/16/2020] [Indexed: 11/10/2022]
Abstract
The synthesis and catalytic applications of trivalent rare-earth metal alkyl complexes have been well developed, but the chemistry of divalent rare-earth metal alkyl complexes lagged much behind. Herein, we report the synthesis, structure, and catalytic applications of a samarium(II) monoalkyl complex supported by a β-diketiminato-based tetradentate ligand, [LSmCH(SiMe3 )2 ] (L=[MeC(NDipp)CHC(Me)NCH2 CH2 N(Me)CH2 CH2 NMe2 ]- , Dipp=2,6-(iPr)2 C6 H3 ). This complex is synthesized by the salt metathesis reaction of samarium iodide [LSm(μ-I)]2 and KCH(SiMe3 )2 in 63 % yield. Its structure is characterized by single-crystal X-ray diffraction, showing a distorted square-pyramid coordination geometry. This samarium(II) monoalkyl complex exhibits high catalytic activity in the hydrosilylation of aryl and methyl-substituted unsymmetrical internal alkynes with secondary hydrosilanes, selectively providing the α-(E) products in high yields.
Collapse
Affiliation(s)
- Xiaojuan Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Qingqing Wen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Li Xiang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China.,Chongqing Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing, 401331, P. R. China
| | - Xuebing Leng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Yaofeng Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| |
Collapse
|
12
|
Khristolyubov DO, Lyubov DM, Shavyrin AS, Cherkasov AV, Fukin GK, Trifonov AA. Ln( ii) and Ca( ii) NC sp3N pincer type diarylmethanido complexes – promising catalysts for C–C and C–E (E = Si, P, N, S) bond formation. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00369g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The first examples of Ln(ii) (Ln = Yb, Sm) and Ca [NCsp3N] pincer type diarylmethanido complexes were synthesized and successfully used as efficient and selective precatalyst for intermolecular C–C and C–E bond formation.
Collapse
Affiliation(s)
| | - Dmitry M. Lyubov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Andrey S. Shavyrin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences
- Moscow
| |
Collapse
|
13
|
Selikhov AN, Shavyrin AS, Cherkasov AV, Fukin GK, Trifonov AA. Thermally Stable Half-Sandwich Benzhydryl Ln(II) (Ln = Sm, Yb) Complexes Supported by Sterically Demanding Carbazolyl and Fluorenyl Ligands. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00624] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Alexander N. Selikhov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, GSP-445, Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991 Moscow, GSP-1, Russia
| | - Andrey S. Shavyrin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, GSP-445, Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, GSP-445, Russia
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, GSP-445, Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, GSP-445, Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991 Moscow, GSP-1, Russia
| |
Collapse
|
14
|
Selikhov AN, Plankin GS, Cherkasov AV, Shavyrin AS, Louyriac E, Maron L, Trifonov AA. Thermally Stable Ln(II) and Ca(II) Bis(benzhydryl) Complexes: Excellent Precatalysts for Intermolecular Hydrophosphination of C-C Multiple Bonds. Inorg Chem 2019; 58:5325-5334. [PMID: 30933487 DOI: 10.1021/acs.inorgchem.9b00490] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of Ln(II) and Ca(II) bis(alkyl) complexes with bulky benzhydryl ligands, [( p- tBu-C6H4)2CH]2M(L n) (M = Sm, L = DME, n = 2 (1); M = Sm, Yb, Ca, L = TMEDA, n = 1 (2, 3, 4), were synthesized by the salt-metathesis reaction of MI2(THF) n ( n = 0-2) and [( p- tBu-C6H4)2CH]-Na+. In complex 1, the benzhydryl ligands are bound to the metal center in η2-coordination mode. Unlike complex 1, in isomorphous complexes 3 and 4, due to the coordination unsaturation of the metal center, the both benzhydryl ligands coordinate to the metal in η3-fashion. In complex 2, one ligand is η3-coordinated while the second one is η4-coordinated to the Sm(II) ion. Complexes 2-4 demonstrated unprecedented thermal stability: no evidence of decomposition was observed after heating their solutions in C6D6 at 100 °C during 72 h. Complex 1 behaves differently: thermolysis in C6D6 solution at 75 °C results in total decomposition in 8 h. Addition of DME promotes decomposition of 2-4 and makes it feasible at 40 °C. Complexes 1-4 demonstrated high catalytic activity and excellent regio- and chemoselectivities in intermolecular hydrophosphination of double and triple C-C bonds with both primary and secondary phosphines. Complexes 2 and 3 enable addition of PhPH2 toward the internal C═C bond of Z- and E-stilbenes with 100% conversion under mild conditions. Double sequential hydrophosphination of phenylacetylene with Ph2PH and PhPH2 was realized due to the application of Yb(II) complex as a catalyst.
Collapse
Affiliation(s)
- Alexander N Selikhov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences , 49 Tropinina str. , 603137 , Nizhny Novgorod , GSP-445, Russia.,A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences , 28 Vavilova str. , 119991 , Moscow , GSP-1, Russia
| | - Gleb S Plankin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences , 49 Tropinina str. , 603137 , Nizhny Novgorod , GSP-445, Russia
| | - Anton V Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences , 49 Tropinina str. , 603137 , Nizhny Novgorod , GSP-445, Russia
| | - Andrey S Shavyrin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences , 49 Tropinina str. , 603137 , Nizhny Novgorod , GSP-445, Russia
| | - Elisa Louyriac
- Laboratoire de Physique et Chimie des Nanoobjets, LPCNO, CNRS & INSA , Université Paul Sabatier , 135 Avenue de Rangueil , 31077 Toulouse , France
| | - Laurent Maron
- Laboratoire de Physique et Chimie des Nanoobjets, LPCNO, CNRS & INSA , Université Paul Sabatier , 135 Avenue de Rangueil , 31077 Toulouse , France
| | - Alexander A Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences , 49 Tropinina str. , 603137 , Nizhny Novgorod , GSP-445, Russia.,A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences , 28 Vavilova str. , 119991 , Moscow , GSP-1, Russia
| |
Collapse
|
15
|
Wilson ASS, Hill MS, Mahon MF. Calcium Hydride Insertion Reactions with Unsaturated C–C Bonds. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00743] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrew S. S. Wilson
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Michael S. Hill
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Mary F. Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| |
Collapse
|
16
|
Ruccolo S, Rauch M, Parkin G. Synthesis and Structural Characterization of Tris(isopropylbenzimidazol-2-ylthio)methyl Zinc Complexes, [TitmPriBenz]ZnX: Modulation of Transannular Zn–C Interactions. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00158] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Serge Ruccolo
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Michael Rauch
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| |
Collapse
|
17
|
Khristolyubov DO, Lyubov DM, Cherkasov AV, Fukin GK, Shavyrin AS, Trifonov AA. Alkali-Metal Alkyl Complexes with the Tridentate Benzhydryl Ligand [2,2′-(4-MeC6H4NMe2)2CH]−. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00182] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dmitry O. Khristolyubov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina str. 49, GSP-445, 630950 Nizhny Novgorod, Russia
| | - Dmitry M. Lyubov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina str. 49, GSP-445, 630950 Nizhny Novgorod, Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina str. 49, GSP-445, 630950 Nizhny Novgorod, Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina str. 49, GSP-445, 630950 Nizhny Novgorod, Russia
| | - Andrey S. Shavyrin
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina str. 49, GSP-445, 630950 Nizhny Novgorod, Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina str. 49, GSP-445, 630950 Nizhny Novgorod, Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova str. 28, 119334 Moscow, Russia
| |
Collapse
|
18
|
Banerjee S, Ankur A, Andrews A, Venugopal A. A disguised hydride in a butylmagnesium cation. Chem Commun (Camb) 2018; 54:5788-5791. [DOI: 10.1039/c8cc03127d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactivity of a butylmagnesium cation provides a new perspective on the concept of β-hydride abstraction in s-block chemistry.
Collapse
Affiliation(s)
- Sumanta Banerjee
- School of Chemistry
- Indian Institute of Science Education and Research
- Vithura
- India
| | - Ankur Ankur
- School of Chemistry
- Indian Institute of Science Education and Research
- Vithura
- India
| | - Alex Andrews
- School of Chemistry
- Indian Institute of Science Education and Research
- Vithura
- India
| | - Ajay Venugopal
- School of Chemistry
- Indian Institute of Science Education and Research
- Vithura
- India
| |
Collapse
|
19
|
Pindwal A, Yan K, Patnaik S, Schmidt BM, Ellern A, Slowing II, Bae C, Sadow AD. Homoleptic Trivalent Tris(alkyl) Rare Earth Compounds. J Am Chem Soc 2017; 139:16862-16874. [PMID: 28991458 DOI: 10.1021/jacs.7b09521] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Homoleptic tris(alkyl) rare earth complexes Ln{C(SiHMe2)3}3 (Ln = La, 1a; Ce, 1b; Pr, 1c; Nd, 1d) are synthesized in high yield from LnI3THFn and 3 equiv of KC(SiHMe2)3. X-ray diffraction studies reveal 1a-d are isostructural, pseudo-C3-symmetric molecules that contain two secondary Ln↼HSi interactions per alkyl ligand (six total). Spectroscopic assignments are supported by comparison with Ln{C(SiDMe2)3}3 and DFT calculations. The Ln↼HSi and terminal SiH exchange rapidly on the NMR time scale at room temperature, but the two motifs are resolved at low temperature. Variable-temperature NMR studies provide activation parameters for the exchange process in 1a (ΔH⧧ = 8.2(4) kcal·mol-1; ΔS⧧ = -1(2) cal·mol-1K-1) and 1a-d9 (ΔH⧧ = 7.7(3) kcal·mol-1; ΔS⧧ = -4(2) cal·mol-1K-1). Comparisons of lineshapes, rate constants (kH/kD), and slopes of ln(k/T) vs 1/T plots for 1a and 1a-d9 reveal that an inverse isotope effect dominates at low temperature. DFT calculations identify four low-energy intermediates containing five β-Si-H⇀Ln and one γ-C-H⇀Ln. The calculations also suggest the pathway for Ln↼HSi/SiH exchange involves rotation of a single C(SiHMe2)3 ligand that is coordinated to the Ln center through the Ln-C bond and one secondary interaction. These robust organometallic compounds persist in solution and in the solid state up to 80 °C, providing potential for their use in a range of synthetic applications. For example, reactions of Ln{C(SiHMe2)3}3 and ancillary proligands, such as bis-1,1-(4,4-dimethyl-2-oxazolinyl)ethane (HMeC(OxMe2)2) give {MeC(OxMe2)2}Ln{C(SiHMe2)3}2, and reactions with disilazanes provide solvent-free lanthanoid tris(disilazides).
Collapse
Affiliation(s)
- Aradhana Pindwal
- U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States.,Department of Chemistry, Iowa State University , 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - KaKing Yan
- U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States.,Department of Chemistry, Iowa State University , 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Smita Patnaik
- U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States.,Department of Chemistry, Iowa State University , 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Bradley M Schmidt
- U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States.,Department of Chemistry, Iowa State University , 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Arkady Ellern
- Department of Chemistry, Iowa State University , 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Igor I Slowing
- U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States.,Department of Chemistry, Iowa State University , 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Cheolbeom Bae
- Kumho Petrochemical R&D Center , Daejeon 34044, Republic of Korea
| | - Aaron D Sadow
- U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States.,Department of Chemistry, Iowa State University , 1605 Gilman Hall, Ames, Iowa 50011, United States
| |
Collapse
|
20
|
Osseili H, Mukherjee D, Spaniol TP, Okuda J. Ligand Influence on Carbonyl Hydroboration Catalysis by Alkali Metal Hydridotriphenylborates [(L)M][HBPh3
] (M=Li, Na, K). Chemistry 2017; 23:14292-14298. [DOI: 10.1002/chem.201702818] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Hassan Osseili
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52056 Aachen Germany
| | - Debabrata Mukherjee
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52056 Aachen Germany
| | - Thomas P. Spaniol
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52056 Aachen Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52056 Aachen Germany
| |
Collapse
|
21
|
Lampland NL, Pindwal A, Yan K, Ellern A, Sadow AD. Rare Earth and Main Group Metal Poly(hydrosilyl) Compounds. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00383] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicole L. Lampland
- Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Aradhana Pindwal
- Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - KaKing Yan
- Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Arkady Ellern
- Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Aaron D. Sadow
- Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| |
Collapse
|
22
|
Mukherjee D, Osseili H, Spaniol TP, Okuda J. Facile ring-opening of THF at a lithium center induced by a pendant Si-H bond and BPh 3. Dalton Trans 2017; 46:8017-8021. [PMID: 28617505 DOI: 10.1039/c7dt01671a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The macrocyclic polyamine 1,4,7-trimethyl-1,4,7,10-tetraazacyclododecane [LH = (Me3TACD)H] formed adducts with tetramethyl-silazides [M{N(SiHMe2)2}] (M = Li, Na, K) of light alkali metals. Upon heating, intramolecular dehydrocoupling occurred to give [M{(L)SiMe2N(SiHMe2)}]. BPh3 induced facile ring-opening of THF when reacted with [Li{(L)SiMe2N(SiHMe2)}].
Collapse
Affiliation(s)
- Debabrata Mukherjee
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056 Aachen, Germany.
| | | | | | | |
Collapse
|
23
|
Osseili H, Mukherjee D, Beckerle K, Spaniol TP, Okuda J. Me6TREN-Supported Alkali Metal Hydridotriphenylborates [(L)M][HBPh3] (M = Li, Na, K): Synthesis, Structure, and Reactivity. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00308] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hassan Osseili
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Debabrata Mukherjee
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Klaus Beckerle
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Thomas P. Spaniol
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| |
Collapse
|
24
|
Anker MD, Arrowsmith M, Arrowsmith RL, Hill MS, Mahon MF. Alkaline-Earth Derivatives of the Reactive [HB(C6F5)3]− Anion. Inorg Chem 2017; 56:5976-5983. [DOI: 10.1021/acs.inorgchem.7b00678] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mathew D. Anker
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Merle Arrowsmith
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Rory L. Arrowsmith
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Michael S. Hill
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Mary F. Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| |
Collapse
|
25
|
Zitz R, Hlina J, Aghazadeh Meshgi M, Krenn H, Marschner C, Szilvási T, Baumgartner J. Using Functionalized Silyl Ligands To Suppress Solvent Coordination to Silyl Lanthanide(II) Complexes. Inorg Chem 2017; 56:5328-5341. [PMID: 28398724 PMCID: PMC5415877 DOI: 10.1021/acs.inorgchem.7b00420] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
![]()
The reaction of the potassium 1,3-trisilanediide
Me2Si[Si(Me3Si)2K]2 with
SmI2 and YbI2 was found to give the respective
disilylated complexes Me2Si[Si(Me3Si)2]2Sm·2THF and Me2Si[Si(Me3Si)2]2Yb·2THF. Desolvation of coordinated solvent
molecules in these complexes made their handling difficult. However,
using a number of functionalized silanide ligands, complexes with
a diminished number or even no coordinated solvent molecules were
obtained ((R3Si)2Ln(THF)x (x = 0–3)). The structures of all
new lanthanide compounds were determined by X-ray single-crystal structure
analysis. NMR spectroscopic analysis of some Yb–silyl complexes
pointed at highly ionic interactions between the silyl ligands and
the lanthanides. This bonding picture was supported by DFT calculations
at the B3PW91/Basis1 level of theory. Detailed theoretical analysis
of a disilylated Eu(II) complex suggests that its singly occupied
molecular orbitals (SOMOs) are very close in energy to the ligand
silicon lone pairs (HOMO), and SQUID magnetometry measurements of
the complex showed a deviation from the expected behavior for a free
Eu(II) ion, which might be due to a ligand–metal interaction. Utilizing a number of functionalized silanides, disilylated Ln(II)
complexes with a diminished number or even no coordinated solvent
molecules were obtained.
Collapse
Affiliation(s)
- Rainer Zitz
- Institut für Anorganische Chemie, Technische Universität Graz , Stremayrgasse 9, 8010 Graz, Austria
| | - Johann Hlina
- Institut für Anorganische Chemie, Technische Universität Graz , Stremayrgasse 9, 8010 Graz, Austria
| | | | - Heinz Krenn
- Institut für Physik, Fachbereich Experimentalphysik, Magnetometry und Photonics, Universität Graz , Universitätsplatz 5, 8010 Graz, Austria
| | - Christoph Marschner
- Institut für Anorganische Chemie, Technische Universität Graz , Stremayrgasse 9, 8010 Graz, Austria
| | - Tibor Szilvási
- Department of Chemical & Biological Engineering, University of Wisconsin-Madison , 1415 Engineering Drive, 53706 Madison, Wisconsin, United States
| | - Judith Baumgartner
- Institut für Chemie, Universität Graz , Stremayrgasse 9, 8010 Graz, Austria
| |
Collapse
|
26
|
Pindwal A, Patnaik S, Everett WC, Ellern A, Windus TL, Sadow AD. Cerium-Catalyzed Hydrosilylation of Acrylates to Give α-Silyl Esters. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201610263] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Aradhana Pindwal
- Department of Chemistry and Center for Catalysis; Iowa State University; 1605 Gilman Hall Ames IA 50011 USA
| | - Smita Patnaik
- Department of Chemistry and Center for Catalysis; Iowa State University; 1605 Gilman Hall Ames IA 50011 USA
| | - William C. Everett
- Department of Chemistry and Center for Catalysis; Iowa State University; 1605 Gilman Hall Ames IA 50011 USA
| | - Arkady Ellern
- Department of Chemistry and Center for Catalysis; Iowa State University; 1605 Gilman Hall Ames IA 50011 USA
| | - Theresa L. Windus
- Department of Chemistry and Center for Catalysis; Iowa State University; 1605 Gilman Hall Ames IA 50011 USA
| | - Aaron D. Sadow
- Department of Chemistry and Center for Catalysis; Iowa State University; 1605 Gilman Hall Ames IA 50011 USA
| |
Collapse
|
27
|
Boteju KC, Ellern A, Sadow AD. Homoleptic organolanthanide compounds supported by the bis(dimethylsilyl)benzyl ligand. Chem Commun (Camb) 2017; 53:716-719. [DOI: 10.1039/c6cc09304c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A β-SiH functionalized benzyl anion [C(SiHMe2)2Ph]− reacts with early rare earth halides to provide homoleptic tris(alkyl)lanthanides containing secondary interactions in an efficient and high yielding route.
Collapse
Affiliation(s)
- Kasuni C. Boteju
- Department of Chemistry and US DOE Ames Laboratory
- Iowa State University
- Ames IA 50011
- USA
| | - Arkady Ellern
- Department of Chemistry and US DOE Ames Laboratory
- Iowa State University
- Ames IA 50011
- USA
| | - Aaron D. Sadow
- Department of Chemistry and US DOE Ames Laboratory
- Iowa State University
- Ames IA 50011
- USA
| |
Collapse
|
28
|
Mukherjee D, Wiegand AK, Spaniol TP, Okuda J. Zinc hydridotriphenylborates supported by a neutral macrocyclic polyamine. Dalton Trans 2017; 46:6183-6186. [DOI: 10.1039/c7dt01094j] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A neutral macrocyclic polyamine 1,4,7,10-tetramethyl-1,4,7,10-tetraazacyclododecane (Me4TACD) stabilizes cationic zinc hydridotriphenylborates that react with CO2(1 atm) under insertion into the B–H bonds.
Collapse
Affiliation(s)
| | | | - Thomas P. Spaniol
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52056 Aachen
- Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52056 Aachen
- Germany
| |
Collapse
|
29
|
Mukherjee D, Osseili H, Truong KN, Spaniol TP, Okuda J. Ring-opening of cyclic ethers by aluminum hydridotriphenylborate. Chem Commun (Camb) 2017; 53:3493-3496. [DOI: 10.1039/c7cc01159h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ring-opening of THF or THP in the presence of pinacolborane can be catalyzed by a molecular aluminum hydride catalyst [(L)AlH2]2 (L = Me3TACD)/BPh3 and involves an isolable intermediate [(L)AlH][HBPh3].
Collapse
Affiliation(s)
| | - Hassan Osseili
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52056 Aachen
- Germany
| | - Khai-Nghi Truong
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52056 Aachen
- Germany
| | - Thomas P. Spaniol
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52056 Aachen
- Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52056 Aachen
- Germany
| |
Collapse
|
30
|
Selikhov AN, Mahrova TV, Cherkasov AV, Fukin GK, Maron L, Trifonov AA. Half-Sandwich Alkyl, Amido, and Iodo Samarium(II) Complexes: Non-Conventional Sterically Governed Oxidation of (tBu4Carb)2Sm. Chemistry 2016; 23:1436-1443. [DOI: 10.1002/chem.201604896] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Alexander N. Selikhov
- Institute of Organometallic Chemistry of Russian Academy of Sciences; Tropinina 49, GSP-445 630950 Nizhny Novgorod Russia
| | - Tatyana V. Mahrova
- Institute of Organometallic Chemistry of Russian Academy of Sciences; Tropinina 49, GSP-445 630950 Nizhny Novgorod Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences; Tropinina 49, GSP-445 630950 Nizhny Novgorod Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences; Tropinina 49, GSP-445 630950 Nizhny Novgorod Russia
| | - Laurent Maron
- Université de Toulouse, INSA, UPS, CNRS-UMR5215, LPCNO; Avenue de Rangueil 135 31077 Toulouse France
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences; Tropinina 49, GSP-445 630950 Nizhny Novgorod Russia
- Institute of Organoelement compounds of Russian Academy of Sciences; Vavilova str. 28 119334 Moscow Russia
| |
Collapse
|
31
|
Westerhausen M, Koch A, Görls H, Krieck S. Heavy Grignard Reagents: Synthesis, Physical and Structural Properties, Chemical Behavior, and Reactivity. Chemistry 2016; 23:1456-1483. [DOI: 10.1002/chem.201603786] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Matthias Westerhausen
- Institute of Inorganic and Analytical Chemistry; Friedrich-Schiller-Universität Jena; Humboldtstraße 8 07743 Jena Germany
| | - Alexander Koch
- Institute of Inorganic and Analytical Chemistry; Friedrich-Schiller-Universität Jena; Humboldtstraße 8 07743 Jena Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry; Friedrich-Schiller-Universität Jena; Humboldtstraße 8 07743 Jena Germany
| | - Sven Krieck
- Institute of Inorganic and Analytical Chemistry; Friedrich-Schiller-Universität Jena; Humboldtstraße 8 07743 Jena Germany
| |
Collapse
|
32
|
Pindwal A, Patnaik S, Everett WC, Ellern A, Windus TL, Sadow AD. Cerium-Catalyzed Hydrosilylation of Acrylates to Give α-Silyl Esters. Angew Chem Int Ed Engl 2016; 56:628-631. [PMID: 27900844 DOI: 10.1002/anie.201610263] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Indexed: 11/07/2022]
Abstract
The homoleptic organocerium complex Ce{C(SiHMe2 )3 }3 (1) reacts with B(C6 F5 )3 to produce the zwitterionic bis(alkyl) hydridoborato Ce{C(SiHMe2 )3 }2 HB(C6 F5 )3 (2). NMR and IR spectroscopy and X-ray crystallography indicate that each alkyl ligand contains two bridging Ce↼H-Si interactions in both 1 and 2. Compound 2 serves as a precatalyst for the hydrosilylation of acrylates to give α-silyl esters at room temperature with a turnover number of 2200.
Collapse
Affiliation(s)
- Aradhana Pindwal
- Department of Chemistry and Center for Catalysis, Iowa State University, 1605 Gilman Hall, Ames, IA, 50011, USA
| | - Smita Patnaik
- Department of Chemistry and Center for Catalysis, Iowa State University, 1605 Gilman Hall, Ames, IA, 50011, USA
| | - William C Everett
- Department of Chemistry and Center for Catalysis, Iowa State University, 1605 Gilman Hall, Ames, IA, 50011, USA
| | - Arkady Ellern
- Department of Chemistry and Center for Catalysis, Iowa State University, 1605 Gilman Hall, Ames, IA, 50011, USA
| | - Theresa L Windus
- Department of Chemistry and Center for Catalysis, Iowa State University, 1605 Gilman Hall, Ames, IA, 50011, USA
| | - Aaron D Sadow
- Department of Chemistry and Center for Catalysis, Iowa State University, 1605 Gilman Hall, Ames, IA, 50011, USA
| |
Collapse
|
33
|
Collins LR, Rajabi NA, Macgregor SA, Mahon MF, Whittlesey MK. Experimental and Computational Studies of the Copper Borate Complexes [(NHC)Cu(HBEt3)] and [(NHC)Cu(HB(C6F5)3)]. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608081] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lee R. Collins
- Department of Chemistry; University of Bath; Claverton Down Bath BA2 7AY UK
| | - Nasir A. Rajabi
- Institute of Chemical Sciences; Heriot Watt University; Edinburgh EH14 4AS UK
| | - Stuart A. Macgregor
- Institute of Chemical Sciences; Heriot Watt University; Edinburgh EH14 4AS UK
| | - Mary F. Mahon
- Department of Chemistry; University of Bath; Claverton Down Bath BA2 7AY UK
| | | |
Collapse
|
34
|
Collins LR, Rajabi NA, Macgregor SA, Mahon MF, Whittlesey MK. Experimental and Computational Studies of the Copper Borate Complexes [(NHC)Cu(HBEt3)] and [(NHC)Cu(HB(C6F5)3)]. Angew Chem Int Ed Engl 2016; 55:15539-15543. [DOI: 10.1002/anie.201608081] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/19/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Lee R. Collins
- Department of Chemistry; University of Bath; Claverton Down Bath BA2 7AY UK
| | - Nasir A. Rajabi
- Institute of Chemical Sciences; Heriot Watt University; Edinburgh EH14 4AS UK
| | - Stuart A. Macgregor
- Institute of Chemical Sciences; Heriot Watt University; Edinburgh EH14 4AS UK
| | - Mary F. Mahon
- Department of Chemistry; University of Bath; Claverton Down Bath BA2 7AY UK
| | | |
Collapse
|
35
|
Mukherjee D, Shirase S, Spaniol TP, Mashima K, Okuda J. Magnesium hydridotriphenylborate [Mg(thf) 6][HBPh 3] 2: a versatile hydroboration catalyst. Chem Commun (Camb) 2016; 52:13155-13158. [PMID: 27763652 DOI: 10.1039/c6cc06805g] [Citation(s) in RCA: 182] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Magnesium bis(hydridotriphenylborate), isolated as a solvent-separated ion pair [Mg(thf)6][HBPh3]2, effectively catalyzed the hydroboration of several unsaturated substrates including CO2.
Collapse
Affiliation(s)
- Debabrata Mukherjee
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056, Aachen, Germany.
| | | | | | | | | |
Collapse
|
36
|
Affiliation(s)
- Joyce Y. Corey
- Department of Chemistry and
Biochemistry, University of Missouri—St. Louis, One University
Drive, St. Louis, Missouri 63121, United States
| |
Collapse
|
37
|
Mukherjee D, Osseili H, Spaniol TP, Okuda J. Alkali Metal Hydridotriphenylborates [(L)M][HBPh3] (M = Li, Na, K): Chemoselective Catalysts for Carbonyl and CO2 Hydroboration. J Am Chem Soc 2016; 138:10790-3. [DOI: 10.1021/jacs.6b06319] [Citation(s) in RCA: 156] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Debabrata Mukherjee
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Hassan Osseili
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Thomas P. Spaniol
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| |
Collapse
|
38
|
Pindwal A, Ellern A, Sadow AD. Homoleptic Divalent Dialkyl Lanthanide-Catalyzed Cross-Dehydrocoupling of Silanes and Amines. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00138] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aradhana Pindwal
- Department
of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Arkady Ellern
- Department
of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Aaron D. Sadow
- Department
of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| |
Collapse
|
39
|
Krieck S, Koch A, Hinze K, Müller C, Lange J, Görls H, Westerhausen M. s-Block Metal Complexes with Bis- and Tris(pyrazolyl)methane and -methanide Ligands. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501263] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Sven Krieck
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Alexander Koch
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Kay Hinze
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Christoph Müller
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Juliane Lange
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Matthias Westerhausen
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| |
Collapse
|
40
|
Köhler M, Koch A, Görls H, Westerhausen M. Trimethylsilylmethylcalcium Iodide, an Easily Accessible Grignard-Type Reagent of a Heavy Alkaline Earth Metal. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00956] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mathias Köhler
- Institute of Inorganic and
Analytical Chemistry, Friedrich-Schiller-University Jena, Humboldtstraße
8, D-07743 Jena, Germany
| | - Alexander Koch
- Institute of Inorganic and
Analytical Chemistry, Friedrich-Schiller-University Jena, Humboldtstraße
8, D-07743 Jena, Germany
| | - Helmar Görls
- Institute of Inorganic and
Analytical Chemistry, Friedrich-Schiller-University Jena, Humboldtstraße
8, D-07743 Jena, Germany
| | - Matthias Westerhausen
- Institute of Inorganic and
Analytical Chemistry, Friedrich-Schiller-University Jena, Humboldtstraße
8, D-07743 Jena, Germany
| |
Collapse
|
41
|
Yin H, Zabula AV, Schelter EJ. C–F→Ln/An interactions in synthetic f-element chemistry. Dalton Trans 2016; 45:6313-23. [DOI: 10.1039/c6dt00108d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
C–F→Ln/An interactions have been increasingly recognized as a key aspect of f-element chemistry over the last two decades. This Perspective summarizes the literature on the nature of C–F→Ln/An contacts, their role in the structural and coordination chemistry of f-block elements and their applications for C–F bond activation.
Collapse
Affiliation(s)
- Haolin Yin
- P. Roy and Diana T. Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
| | - Alexander V. Zabula
- P. Roy and Diana T. Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
| | - Eric J. Schelter
- P. Roy and Diana T. Vagelos Laboratories
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
| |
Collapse
|
42
|
Kim J, Kim Y, Sinha I, Park K, Kim SH, Lee Y. The unusual hydridicity of a cobalt bound Si–H moiety. Chem Commun (Camb) 2016; 52:9367-70. [DOI: 10.1039/c6cc03983a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A paramagnetic cobalt–SiH intermediate possessing the Co–(η1-H–Si) moiety shows unusual Si–H bond activation studied by ENDOR, XRD and DFT.
Collapse
Affiliation(s)
- Jin Kim
- Department of Chemistry
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
| | - Yujeong Kim
- Western Seoul Centre
- Korea Basic Science Institute
- Seoul 03759
- Republic of Korea
- Department of Chemistry and Nano Science
| | - Indranil Sinha
- Department of Chemistry
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
- Centre for Catalytic Hydrocarbon Functionalizations
| | - Koeun Park
- Department of Chemistry
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
| | - Sun Hee Kim
- Western Seoul Centre
- Korea Basic Science Institute
- Seoul 03759
- Republic of Korea
- Department of Chemistry and Nano Science
| | - Yunho Lee
- Department of Chemistry
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
- Centre for Catalytic Hydrocarbon Functionalizations
| |
Collapse
|
43
|
Kuzyaev DM, Balashova TV, Burin ME, Fukin GK, Rumyantcev RV, Pushkarev AP, Ilichev VA, Grishin ID, Vorozhtsov DL, Bochkarev MN. Synthesis, structure and luminescent properties of lanthanide fluoroalkoxides. Dalton Trans 2016; 45:3464-72. [PMID: 26795570 DOI: 10.1039/c5dt04636j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A set of new lanthanide fluoroalkoxides have been synthesized and characterized, some of them revealed ultraviolet photoluminescence.
Collapse
Affiliation(s)
- D. M. Kuzyaev
- G. A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russia
| | - T. V. Balashova
- G. A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russia
- Nizhny Novgorod State University
| | - M. E. Burin
- G. A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russia
- Nizhny Novgorod State University
| | - G. K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russia
- Nizhny Novgorod State University
| | - R. V. Rumyantcev
- G. A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russia
| | - A. P. Pushkarev
- G. A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russia
| | - V. A. Ilichev
- G. A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russia
- Nizhny Novgorod State University
| | - I. D. Grishin
- Nizhny Novgorod State University
- 603950 Nizhny Novgorod
- Russia
| | | | - M. N. Bochkarev
- G. A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russia
- Nizhny Novgorod State University
| |
Collapse
|
44
|
Lampland NL, Pindwal A, Neal SR, Schlauderaff S, Ellern A, Sadow AD. Magnesium-catalyzed hydrosilylation of α,β-unsaturated esters. Chem Sci 2015; 6:6901-6907. [PMID: 29861929 PMCID: PMC5947512 DOI: 10.1039/c5sc02435h] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 08/20/2015] [Indexed: 11/21/2022] Open
Abstract
ToMMgHB(C6F5)3 (1, ToM = tris(4,4-dimethyl-2-oxazolinyl)phenylborate) catalyzes the 1,4-hydrosilylation of α,β-unsaturated esters. This magnesium hydridoborate compound is synthesized by the reaction of ToMMgMe, PhSiH3, and B(C6F5)3. Unlike the transient ToMMgH formed from the reaction of ToMMgMe and PhSiH3, the borate adduct 1 persists in solution and in the solid state. Crystallographic characterization reveals tripodal coordination of the HB(C6F5)3 moiety to the six-coordinate magnesium center with a ∠Mg-H-B of 141(3)°. The pathway for formation of 1 is proposed to involve the reaction of ToMMgMe and a PhSiH3/B(C6F5)3 adduct because the other possible intermediates, ToMMgH and ToMMgMeB(C6F5)3, react to give an intractable black solid and ToMMgC6F5, respectively. Under catalytic conditions, silyl ketene acetals are isolated in high yield from the addition of hydrosilanes to α,β-unsaturated esters with 1 as the catalyst.
Collapse
Affiliation(s)
- Nicole L Lampland
- Department of Chemistry , Iowa State University , 1605 Gilman Hall , Ames , IA 50011 , USA .
| | - Aradhana Pindwal
- Department of Chemistry , Iowa State University , 1605 Gilman Hall , Ames , IA 50011 , USA .
| | - Steven R Neal
- Department of Chemistry , University of Tennessee , 515 Dabney-Buehler Hall, 1420 Circle Dr. , Knoxville , TN 37996 , USA
| | - Shealyn Schlauderaff
- Department of Chemistry , Iowa State University , 1605 Gilman Hall , Ames , IA 50011 , USA .
| | - Arkady Ellern
- Department of Chemistry , Iowa State University , 1605 Gilman Hall , Ames , IA 50011 , USA .
| | - Aaron D Sadow
- Department of Chemistry , Iowa State University , 1605 Gilman Hall , Ames , IA 50011 , USA .
| |
Collapse
|
45
|
Harder S, Ruspic C. Probing the Salt‐Metathesis Route to Bis(aryl)calcium Compounds: Structure of an Arylcalcate Complex. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501178] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sjoerd Harder
- Inorganic and Organometallic Chemistry, University Erlangen‐Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany, www.harder‐research.com
| | - Christian Ruspic
- Anorganische Chemie, Universität Duisburg‐Essen, Universitätsstrasse 5, 45117 Essen, Germany
| |
Collapse
|
46
|
Zitz R, Hlina J, Gatterer K, Marschner C, Szilvási T, Baumgartner J. Neutral "Cp-Free" Silyl-Lanthanide(II) Complexes: Synthesis, Structure, and Bonding Analysis. Inorg Chem 2015; 54:7065-72. [PMID: 26132550 PMCID: PMC4510641 DOI: 10.1021/acs.inorgchem.5b01072] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Complexes featuring lanthanide silicon
bonds represent a research area still in its infancy. Herein, we report
a series of Cp-free lanthanide (+II) complexes bearing σ-bonded
silyl ligands. By reactions of LnI2 (Ln = Yb, Eu, Sm) either
with a 1,4-oligosilanyl dianion [K-Si(SiMe3)2SiMe2SiMe2Si(SiMe3)2-K)] (1) or with 2 (Me3Si)3SiK (3) the corresponding neutral metallacyclopentasilanes
({Me2Si(Me3Si)2Si}2)Ln·(THF)4 (Ln = Yb (2a), Eu (2b), Sm (2c)), or the disilylated complexes ({Me3Si}3Si)2Ln·(THF)3 (Ln = Yb (4a), Eu (4b), Sm (4c)), were selectively
obtained. Complexes 2b, 2c, 4b, and 4c represent the first examples of structurally
characterized Cp-free Eu and Sm complexes with silyl ligands. In both
series, a linear correlation was observed between the Ln–Si
bond lengths and the covalent radii of the corresponding lanthanide
metals. Density functional theory calculations were also carried out
for complexes 2a–c and 4a–c to elucidate the bonding situation between
the Ln(+II) centers and Si. By reactions of
LnI2 (Ln = Yb, Eu, Sm) with oligosilanyl anions or dianions,
either neutral disilylated complexes or metallacyclopentasilanes were
obtained.
Collapse
Affiliation(s)
- Rainer Zitz
- †Institut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse 9, 8010 Graz, Austria
| | - Johann Hlina
- ‡Institut für Chemie, Universität Graz, Stremayrgasse 9, 8010 Graz, Austria
| | - Karl Gatterer
- §Institut für Physikalische und Theoretische Chemie, Technische Universität Graz, Stremayrgasse 9, 8010 Graz, Austria
| | - Christoph Marschner
- †Institut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse 9, 8010 Graz, Austria
| | - Tibor Szilvási
- ∥Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics (BUTE), Szent Gellért tér 4, 1111 Budapest, Hungary
| | - Judith Baumgartner
- ‡Institut für Chemie, Universität Graz, Stremayrgasse 9, 8010 Graz, Austria
| |
Collapse
|
47
|
Edelmann FT. Lanthanides and actinides: Annual survey of their organometallic chemistry covering the year 2013. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.09.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
48
|
Romero N, Roşca SC, Sarazin Y, Carpentier JF, Vendier L, Mallet-Ladeira S, Dinoi C, Etienne M. Highly Fluorinated Tris(indazolyl)borate Silylamido Complexes of the Heavier Alkaline Earth Metals: Synthesis, Characterization, and Efficient Catalytic Intramolecular Hydroamination. Chemistry 2015; 21:4115-25. [DOI: 10.1002/chem.201405454] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Indexed: 11/11/2022]
|
49
|
Ko N, Hong J, You L, Park HJ, Yang JK, Kim J. Chemical Property Change in a Metal-Organic Framework by Fluoro Functionality. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nakeun Ko
- Department of Chemistry; Soongsil University; Seoul 156-743 Republic of Korea
| | - Jisu Hong
- Department of Chemistry; Soongsil University; Seoul 156-743 Republic of Korea
| | - Laekyeong You
- Department of Chemistry; Soongsil University; Seoul 156-743 Republic of Korea
| | - Hye Jeong Park
- Department of Chemistry; Soongsil University; Seoul 156-743 Republic of Korea
| | - Jin Kuk Yang
- Department of Chemistry; Soongsil University; Seoul 156-743 Republic of Korea
| | - Jaheon Kim
- Department of Chemistry; Soongsil University; Seoul 156-743 Republic of Korea
| |
Collapse
|
50
|
Blom B, Klatt G, Gallego D, Tan G, Driess M. Unprecedented silicon(ii)→calcium complexes with N-heterocyclic silylenes. Dalton Trans 2015; 44:639-44. [DOI: 10.1039/c4dt03148b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The first N-heterocyclic silylene (NHSi) complexes of any s-block element to date are reported for calcium: [(η5-C5Me5)2Ca←:Si(O-C6H4-2-tBu){(NtBu)2CPh}] and [(η5-C5Me5)2Ca←:Si(NtBuCH)2]. The synthesis, structure, bonding analysis by DFT methods and the reactivity towards oxygen containing substrates is discussed.
Collapse
Affiliation(s)
- Burgert Blom
- Technische Universität Berlin
- Department of Chemistry: Metalorganics and Inorganic Materials
- 10623 Berlin
- Germany
| | - Günter Klatt
- Physikalisch-Chemisches Institut der Universität Heidelberg
- D-69120 Heidelberg
- Germany
| | - Daniel Gallego
- Technische Universität Berlin
- Department of Chemistry: Metalorganics and Inorganic Materials
- 10623 Berlin
- Germany
| | - Gengwen Tan
- Technische Universität Berlin
- Department of Chemistry: Metalorganics and Inorganic Materials
- 10623 Berlin
- Germany
| | - Matthias Driess
- Technische Universität Berlin
- Department of Chemistry: Metalorganics and Inorganic Materials
- 10623 Berlin
- Germany
| |
Collapse
|