1
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Sivaramakrishna A, Pete S, Mandar Mhaskar C, Ramann H, Venkata Ramanaiah D, Arbaaz M, Niyaz M, Janardan S, Suman P. Role of hypercoordinated silicon(IV) complexes in activation of carbon–silicon bonds: An overview on utility in synthetic chemistry. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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2
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Pintus A, Arca M. 1,2-Diselenolene ligands and related metal complexes: Design, synthesis and applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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3
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Silicon Complexes Based on SS- and SS-Coordinating Tridentate Ligands. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Wang Y, Tran PM, Xie Y, Wei P, Glushka JN, Schaefer HF, Robinson GH. Carbene‐Stabilized Dithiolene (L
0
) Zwitterions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuzhong Wang
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center The University of Georgia Athens GA 30602-2556 USA
| | - Phuong M. Tran
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center The University of Georgia Athens GA 30602-2556 USA
| | - Yaoming Xie
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center The University of Georgia Athens GA 30602-2556 USA
| | - Pingrong Wei
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center The University of Georgia Athens GA 30602-2556 USA
| | - John N. Glushka
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center The University of Georgia Athens GA 30602-2556 USA
| | - Henry F. Schaefer
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center The University of Georgia Athens GA 30602-2556 USA
| | - Gregory H. Robinson
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center The University of Georgia Athens GA 30602-2556 USA
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5
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Wang Y, Tran PM, Xie Y, Wei P, Glushka JN, Schaefer HF, Robinson GH. Carbene-Stabilized Dithiolene (L 0 ) Zwitterions. Angew Chem Int Ed Engl 2021; 60:22706-22710. [PMID: 34314562 DOI: 10.1002/anie.202108498] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/23/2021] [Indexed: 11/06/2022]
Abstract
A series of reactions between Lewis bases and an imidazole-based dithione dimer (1) has been investigated. Both cyclic(alkyl)(amino)carbene (CAAC) (2) and N-heterocyclic carbene (NHC) (4), in addition to N-heterocyclic silylene (NHSi) (6), demonstrate the capability to cleave the sulphur-sulphur bonds in 1, giving carbene-stabilized dithiolene (L0 ) zwitterions (3 and 5) and a spirocyclic silicon-dithiolene compound (7), respectively. The bonding nature of 3, 5, and 7 are probed by both experimental and theoretical methods.
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Affiliation(s)
- Yuzhong Wang
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center, The University of Georgia, Athens, GA, 30602-2556, USA
| | - Phuong M Tran
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center, The University of Georgia, Athens, GA, 30602-2556, USA
| | - Yaoming Xie
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center, The University of Georgia, Athens, GA, 30602-2556, USA
| | - Pingrong Wei
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center, The University of Georgia, Athens, GA, 30602-2556, USA
| | - John N Glushka
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center, The University of Georgia, Athens, GA, 30602-2556, USA
| | - Henry F Schaefer
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center, The University of Georgia, Athens, GA, 30602-2556, USA
| | - Gregory H Robinson
- Department of Chemistry, Center for Computational Chemistry, and Complex Carbohydrate Research Center, The University of Georgia, Athens, GA, 30602-2556, USA
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6
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Cruz-López JF, Palacios-Chavez JA, Guajardo-García JA, González-García A, Báez JE, López JA, Orozco-Castellanos LM, González-García G. A straightforward synthesis of neutral hexacoordinated silicon(IV) complexes with SiN6 skeleton. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Wang Y, DeCarlo S, Wang L, Stevens L, Chen F, Zavalij P, Eichhorn B. Synthesis and Characterization of the {Si(NHCH 2CH 2NH) 3[Mo(CO) 3] 2} 2- Complex Comprising the Si(NHCH 2CH 2NH) 32- Octahedron. Inorg Chem 2019; 58:8915-8917. [PMID: 31247833 DOI: 10.1021/acs.inorgchem.9b01122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reactions of K12Si17 with the low-valent transition-metal complex Mo(CO)3(C7H8) in ethylenediamine/toluene solutions in the presence of 2,2,2-cryptand yield the {Si(NHCH2CH2NH)3[Mo(CO)3]2}2- dianion, which contains an octahedral Si(NHCH2CH2NH)32- subunit. The SiN6 core comprises a rare example of a doubly deprotonated ethylenediame ligand in a coordination complex and is also the first structurally characterized example of a homoleptic Si(N∩N)3 trischelate. Its structure and spectroscopic properties are described.
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Affiliation(s)
- Yi Wang
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Samantha DeCarlo
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Luning Wang
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Lauren Stevens
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Fu Chen
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Peter Zavalij
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Bryan Eichhorn
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
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8
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Baus JA, Tacke R. Neutral six-coordinate bis(dithiocarbamato)silicon(iv) complexes with an SiCl 2S 4 skeleton. Dalton Trans 2017; 46:8751-8755. [PMID: 27713941 DOI: 10.1039/c6dt03264h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatment of SiCl4 with lithium dithiocarbamates of the formula type Li[R2NCS2] (R = Ph, iPr) in a molar ratio of 1 : 2 afforded the respective six-coordinate silicon(iv) complexes [Ph2NCS2]2SiCl2 (3) and [iPr2NCS2]2SiCl2 (4), which were isolated as the solvates 3·MeCN and 4·MeCN. Compounds 3·MeCN and 4·MeCN were structurally characterised by single-crystal X-ray diffraction and multinuclear NMR spectroscopic studies in the solid state and in solution. In this study, dithiocarbamato ligands were implemented in silicon coordination chemistry for the first time. Compounds 3 and 4 represent the first six-coordinate silicon(iv) complexes with an SiCl2S4 skeleton.
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Affiliation(s)
- Johannes A Baus
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany.
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9
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Portius P, Davis M. Synthesis of six-coordinate mono-, bis-, and tris(tetrazolato) complexes via [3 + 2] cycloadditions of nitriles to silicon-bound azido ligands. Dalton Trans 2016; 45:17141-17152. [PMID: 27735013 DOI: 10.1039/c6dt02867e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient synthetic route to poly(tetrazolato) silicon complexes is described based on the four reactive centres of the N-rich, highly endothermic tetraazides of the type Si(N3)4(L2). Hypercoordinate azido(tetrazolato) silicon complexes Si(N3)2(N4C-R)2(L2), R = CH3, C6H5, 4-C6H4CH3 (4a, 5, 6, 7) and Si(N3)2(N4C-L)2 (9, L = 2-C5H4N), L2 = 2,2'-bipyridine, 1,10-phenanthroline, with SiN6 skeletons were synthesised via multiple [3 + 2] dipolar cycloaddition reactions starting from Si(N3)4(L2) and a nitrile. The isolated new complexes were characterised by standard analytical methods, single crystal X-ray diffraction and differential scanning calorimetry (4a,b). Tetrazolato ligand linkage isomerism was observed for complex 4a. The crystallographically characterised methyl tetrazolato complexes and plausible configurational and linkage isomers were evaluated by DFT calculations at the B3LYP/6-311G(d,p) level.
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Affiliation(s)
- Peter Portius
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom.
| | - Martin Davis
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom.
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10
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Baus JA, Laskowski N, Tacke R. A Silacyclopropene with a Six‐Coordinate Silicon Atom and an SiN
4
C
2
Skeleton: Synthesis and Structural Characterization. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600982] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Johannes A. Baus
- Universität WürzburgInstitut für Anorganische ChemieAm Hubland97074WürzburgGermany
| | - Nadine Laskowski
- Universität WürzburgInstitut für Anorganische ChemieAm Hubland97074WürzburgGermany
| | - Reinhold Tacke
- Universität WürzburgInstitut für Anorganische ChemieAm Hubland97074WürzburgGermany
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11
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Chu W, Du L, Xu C, Ding Y. Synthesis, characterization, and thermal properties of silicon(IV) compounds containing amidinate ligands as CVD precursors. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2016.1192619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Wenxiang Chu
- The Key Laboratory for Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Liyong Du
- The Key Laboratory for Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Chongying Xu
- The Key Laboratory for Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu Province, China
- Jiangsu Nata Opto-Electronic Material Co. Ltd., Suzhou Industrial Park, Jiangsu Province, China
| | - Yuqiang Ding
- The Key Laboratory for Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu Province, China
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12
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Janardan S, Suman P, Sivaramakrishna A, Vijayakrishna K. Donor-stabilized hypercoordinated silicon(IV) chelates with cyclohexylideneimino-N ligand group: Role of substituents on ionization. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.08.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Du L, Chu W, Miao H, Xu C, Ding Y. Synthesis, characterization, thermal properties of silicon(iv) compounds containing guanidinato ligands and their potential as CVD precursors. RSC Adv 2015. [DOI: 10.1039/c5ra09755j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The title compounds of the type (Me3Si)2N–C(N′R)(–N′′RSiMe3) (with R = iPr or Cy) as potential CVD precursors have been synthesized and characterized by X-ray diffraction, 1H NMR, 13C NMR, 29Si NMR and elemental analysis where necessary.
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Affiliation(s)
- Liyong Du
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Wenxiang Chu
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Hongyan Miao
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Chongying Xu
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Yuqiang Ding
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
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14
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Nikolin AA, Negrebetsky VV. Synthesis, properties and reactivity of intramolecular hypercoordinate silicon complexes. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n09abeh004385] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Kämpfe A, Brendler E, Kroke E, Wagler J. 2-Acylpyrroles as mono-anionic O,N-chelating ligands in silicon coordination chemistry. Chemistry 2014; 20:9409-18. [PMID: 25043769 DOI: 10.1002/chem.201402803] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Indexed: 11/07/2022]
Abstract
Kryptopyrrole (2,4-dimethyl-3-ethylpyrrole) was acylated with, for example, benzoyl chloride to afford 2-benzoyl-3,5-dimethyl-4-ethylpyrrole (L(1)H). With SiCl4 this ligand reacts under liberation of HCl and formation of the complex L(1)2SiCl2. In related reactions with HSiCl3 or H2SiCl2, the same chlorosilicon complex is formed under liberation of HCl and H2 or liberation of H2, respectively. The chlorine atoms of L(1)2SiCl2 can be replaced by fluoride and triflate using ZnF2 and Me3Si-OTf, respectively. The use of a supporting base (triethylamine) is required for the complexation of phenyltrichlorosilane and diphenyldichlorosilane. The complexes L(1)2SiCl2, L(1)2SiF2, L(1)2Si(OTf)2, L(1)2SiPhCl, and L(1)2SiPh2 exhibit various configurations of the octahedral silicon coordination spheres (i.e. cis or trans configuration of the monodentate substituents, different orientations of the bidentate chelating ligands relative to each other). Furthermore, cationic silicon complexes L(1)3Si(+) and L(1) SiPh(+) were synthesized by chloride abstraction with GaCl3. In contrast, reaction of L(1)2SiCl2 with a third equivalent of L(1)H in the presence of excess triethylamine produced a charge-neutral hexacoordinate Si complex with a new tetradentate chelating ligand which formed by Si-templated C-C coupling of two ligands L(1).
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Affiliation(s)
- Alexander Kämpfe
- Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, 09596 Freiberg (Germany), Fax: (+49) 3731394058
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16
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Junold K, Nutz M, Baus JA, Burschka C, Fonseca Guerra C, Bickelhaupt FM, Tacke R. The Donor-Stabilized Silylene Bis[N,N′-diisopropylbenzamidinato(−)]silicon(II): Synthesis, Electronic Structure, and Reactivity. Chemistry 2014; 20:9319-29. [DOI: 10.1002/chem.201402483] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Indexed: 11/09/2022]
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17
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Švec P, Padělková Z, Alonso M, De Proft F, Růžička A. Comparison of reactivity of C,N-chelated and Lappert’s stannylenes with trimethylsilylazide. CAN J CHEM 2014. [DOI: 10.1139/cjc-2013-0500] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two mixed amido-azido tin(IV) species bearing either C,N-chelating or bulky amido ligands were prepared by the reaction of the corresponding stannylene (e.g., Sn[N(SiMe3)2]2 (1) or (LCN)2Sn (2, LCN = 2-(N,N-dimethylaminomethyl)phenyl)) with Me3SiN3. Both products of the oxidative addition, Sn[N(SiMe3)2]3N3 (3) and (LCN)2Sn[N(SiMe3)2]N3 (5), respectively, were fully characterized by both multinuclear NMR spectroscopy and XRD analysis. Heating of a mixture of 2 and Me3SiN3 up to 100 °C lead to the formation of a novel dimeric species (LCN)2Sn(μ-NSiMe3)2Sn(LCN)2 (4), where the two tin atoms are bridged by two NSiMe3 ligands, thus forming a four-membered diazadistannacycle. DFT calculations were also carried out to support the proposed reaction mechanisms.
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Affiliation(s)
- Petr Švec
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, CZ-532 10, Pardubice, Czech Republic
| | - Zdeňka Padělková
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, CZ-532 10, Pardubice, Czech Republic
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research Group, Vrije Universiteit Brussel, Pleinlaan 2, Brussels, Belgium
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research Group, Vrije Universiteit Brussel, Pleinlaan 2, Brussels, Belgium
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, CZ-532 10, Pardubice, Czech Republic
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18
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Weiß J, Sinner K, Baus JA, Burschka C, Tacke R. Neutral Hexacoordinate Silicon(IV) Complexes with aSiO4NC orSiO3N2C Skeleton and Neutral Pentacoordinate Silicon(IV) Complexes Containing a Trianionic TetradentateO,N,O,OLigand. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301185] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Weiß J, Theis B, Baus JA, Burschka C, Bertermann R, Tacke R. Neutral Pentacoordinate Silicon(IV) Complexes with a Tridentate DianionicO,N,OorN,N,OLigand, an Anionic PhX Ligand (X = O, S, Se), and a Phenyl Group: Synthesis and Structural Characterization in the Solid State and in Solution. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300523] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wagler J, Brendler E, Heine T, Zhechkov L. Disilicon complexes with two hexacoordinate Si atoms: paddlewheel-shaped isomers with (ClN4 )Si-Si(S4 Cl) and (ClN2 S2 )Si-Si(S2 N2 Cl) skeletons. Chemistry 2013; 19:14296-303. [PMID: 24009095 DOI: 10.1002/chem.201300452] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 06/07/2013] [Indexed: 11/11/2022]
Abstract
The reaction of 1-methyl-3-trimethylsilylimidazoline-2-thione with hexachlorodisilane proceeds toward substitution of four of the disilane Cl atoms during the formation of disilicon complexes with two neighboring hexacoordinate Si atoms. The N,S-bidentate methimazolide moieties adopt a buttressing role, thus forming paddlewheel-shaped complexes of the type ClSi(μ-mt)4 SiCl (mt=methimazolyl). Most interestingly, three isomers (i.e., with (ClN4 )SiSi(S4 Cl), (ClN3 S)SiSi(S3 NCl), and (ClN2 S2 )SiSi(S2 N2 Cl) skeletons as so-called (4,0), (3,1), and cis-(2,2) paddlewheels) were detected in solution by using (29) Si NMR spectroscopic analysis. Two of these isomers could be isolated as crystalline solids, thus allowing their molecular structures to be analyzed by using X-ray diffraction studies. In accord with time-dependent NMR spectroscopy, computational analyses proved the cis-(2,2) isomer with a (ClN2 S2 )SiSi(S2 N2 Cl) skeleton to be the most stable. The compounds presented herein are the first examples of crystallographically evidenced disilicon complexes with two SiSi-bonded octahedrally coordinated Si atoms and representatives of the still scarcely explored class of Si coordination compounds with sulfur donor atoms.
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Affiliation(s)
- Jörg Wagler
- Institut für Anorganische Chemie, TU Bergakademie Freiberg, 09596 Freiberg (Germany), Fax: (+49) 3731-39-4058.
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21
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Junold K, Baus JA, Burschka C, Vent-Schmidt T, Riedel S, Tacke R. Five-coordinate silicon(II) compounds with Si-M bonds (M = Cr, Mo, W, Fe): Bis[N,N'-diisopropylbenzamidinato(-)]silicon(II) as a ligand in transition-metal complexes. Inorg Chem 2013; 52:11593-9. [PMID: 24063513 DOI: 10.1021/ic401954e] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Reaction of the donor-stabilized silylene 1 with [Cr(CO)6], [Mo(CO)6], [W(CO)6], or [Fe(CO)5] leads to the formation of the transition-metal silylene complexes 2-5, which contain five-coordinate silicon(II) moieties with Si-M bonds (M = Cr, Mo, W, Fe). These compounds were characterized by NMR spectroscopic studies in the solid state and in solution and by crystal structure analyses. These experimental investigations were complemented by computational studies to gain insight into the bonding situation of 2-5. The nature of the Si-M bonds is best described as a single bond.
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Affiliation(s)
- Konstantin Junold
- Institut für Anorganische Chemie, Universität Würzburg , Am Hubland, 97074 Würzburg, Germany
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22
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Baus JA, Burschka C, Bertermann R, Guerra CF, Bickelhaupt FM, Tacke R. Neutral six-coordinate and cationic five-coordinate silicon(IV) complexes with two bidentate monoanionic N,S-pyridine-2-thiolato(-) ligands. Inorg Chem 2013; 52:10664-76. [PMID: 24011307 DOI: 10.1021/ic401698a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A series of neutral six-coordinate silicon(IV) complexes (4-11) with two bidentate monoanionic N,S-pyridine-2-thiolato ligands and two monodentate ligands R(1) and R(2) was synthesized (4, R(1) = R(2) = Cl; 5, R(1) = Ph, R(2) = Cl; 6, R(1) = Ph, R(2) = F; 7, R(1) = Ph, R(2) = Br; 8, R(1) = Ph, R(2) = N3; 9, R(1) = Ph, R(2) = NCO; 10, R(1) = Ph, R(2) = NCS; 11, R(1) = Me, R(2) = Cl). In addition, the related ionic compound 12 was synthesized, which contains a cationic five-coordinate silicon(IV) complex with two bidentate monoanionic N,S-pyridine-2-thiolato ligands and one phenyl group (counterion: I(-)). Compounds 4-12 were characterized by elemental analyses, NMR spectroscopic studies in the solid state and in solution, and crystal structure analyses (except 7). These structural investigations were performed with a special emphasis on the sophisticated stereochemistry of these compounds. These experimental investigations were complemented by computational studies, including bonding analyses based on relativistic density functional theory.
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Affiliation(s)
- Johannes A Baus
- Institut für Anorganische Chemie, Universität Würzburg , Am Hubland, 97074 Würzburg, Germany
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23
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Bitto F, Kraushaar K, Böhme U, Brendler E, Wagler J, Kroke E. Chlorosilanes and 3,5-Dimethylpyrazole: Multinuclear Complexes, Acetonitrile Insertion and29Si NMR Chemical-Shift Anisotropy Studies. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300109] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Edelmann FT. Recent Progress in the Chemistry of Metal Amidinates and Guanidinates. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-407692-1.00002-3] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Junold K, Baus JA, Burschka C, Auerhammer D, Tacke R. Stable Five-Coordinate Silicon(IV) Complexes with SiN4X Skeletons (X=S, Se, Te) and SiX Double Bonds. Chemistry 2012; 18:16288-91. [DOI: 10.1002/chem.201202936] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Indexed: 11/08/2022]
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Pentacoordinate mono(β-diketonato)- and hexacoordinate bis-(β-diketonato)-silicon(IV) complexes obtained from (thiocyanato-N)hydridosilanes. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.04.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Junold K, Baus JA, Burschka C, Tacke R. Bis[N,N′-diisopropylbenzamidinato(−)]silicon(II): A Silicon(II) Compound with Both a Bidentate and a Monodentate Amidinato Ligand. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203109] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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30
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Junold K, Baus JA, Burschka C, Tacke R. Bis[N,N′-diisopropylbenzamidinato(−)]silicon(II): A Silicon(II) Compound with Both a Bidentate and a Monodentate Amidinato Ligand. Angew Chem Int Ed Engl 2012; 51:7020-3. [DOI: 10.1002/anie.201203109] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Indexed: 11/07/2022]
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Weiß J, Theis B, Metz S, Burschka C, Fonseca Guerra C, Bickelhaupt FM, Tacke R. Neutral Pentacoordinate Halogeno‐ and Pseudohalogenosilicon(IV) Complexes with a Tridentate Dianionic
O
,
N
,
O
or
N
,
N
,
O
Ligand: Synthesis and Structural Characterization in the Solid State and in Solution. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200308] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jörg Weiß
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐31‐84609
| | - Bastian Theis
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐31‐84609
| | - Stefan Metz
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐31‐84609
| | - Christian Burschka
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐31‐84609
| | - Célia Fonseca Guerra
- Department of Theoretical Chemistry, Amsterdam Center for Multiscale Modeling, VU University, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands, Fax: +31‐20‐59‐87629
| | - F. Matthias Bickelhaupt
- Department of Theoretical Chemistry, Amsterdam Center for Multiscale Modeling, VU University, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands, Fax: +31‐20‐59‐87629
| | - Reinhold Tacke
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐31‐84609
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Chlupatý T, Padělková Z, Lyčka A, Brus J, Růžička A. Reactivity of lithium n-butyl amidinates towards group 14 metal(II) chlorides providing series of hetero- and homoleptic tetrylenes. Dalton Trans 2012; 41:5010-9. [PMID: 22415327 DOI: 10.1039/c2dt12472f] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The new class of homo- and heteroleptic n-butyl-N,N'-disubstituted amidinato group 14 metal(II) complexes were prepared by salt elimination from starting lithium amidinates and metal(II) chlorides both in stoichiometric ratio 2:1 and 1:1, respectively. The target amidinates contain less bulky isopropyl or cyclohexyl as well as a sterically demanding aromatic substituent. Desired 1:1 Pb(II) complexes are not accessible by the described procedure. Ligand transfer from Pb to Sn is taking place if homoleptic Pb(II) compounds are reacted with SnCl(2). Prepared tetrylenes were characterized by (1)H, (13)C, (119)Sn and (207)Pb NMR spectroscopy in C(6)D(6) or THF-d(8). X-Ray diffraction studies of one heteroleptic Ge(II) monomeric where the coordination polyhedron of the three coordinated germanium atoms is a trigonal pyramid, two different dimeric structures of heteroleptic Sn(II) complexes, one amidine hydroiodide byproduct and the oxidation product of the heteroleptic chloro Sn(II) amidinate as a tetranuclear species with two Sn(IV) and two Sn(II) atoms in central Sn(2)O(2) planar ring were performed on appropriate single crystals. The dimer of one of the heteroleptic stannylenes reveals a new type of monomeric units connection, weak Sn-Cl contact and an interaction of the tin atom with delocalized N-C(C)-N system of the amidinato ligand of the second molecule.
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Affiliation(s)
- Tomáš Chlupatý
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10, Pardubice, Czech Republic
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Doddi A, Kingston JV, Ramkumar V, Suzuki M, Hojo M, Rao MNS. Synthesis and Characterization of Dianionic Hexacoordinate Silicon(IV) Complexes of Substituted Catechols, Flavones, and Fluorone: X-Ray Crystal Structures of [(n-C3H7)2NH2]2[(Cl4C6O2)3Si] · 3 CH3CN and [(n-C3H7)2NH2]2[(Br4C6O2)3Si] · 2 (CH3)2SO. PHOSPHORUS SULFUR 2012. [DOI: 10.1080/10426507.2011.613078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Adinarayana Doddi
- a Department of Chemistry , Indian Institute of Technology Madras , Chennai , Tamil Nadu , India
| | - J. V. Kingston
- a Department of Chemistry , Indian Institute of Technology Madras , Chennai , Tamil Nadu , India
| | - V. Ramkumar
- a Department of Chemistry , Indian Institute of Technology Madras , Chennai , Tamil Nadu , India
| | - Mika Suzuki
- b Department of Chemistry , Kochi University , Kochi , Japan
| | - Masashi Hojo
- b Department of Chemistry , Kochi University , Kochi , Japan
| | - M. N. Sudheendra Rao
- a Department of Chemistry , Indian Institute of Technology Madras , Chennai , Tamil Nadu , India
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Kobelt C, Burschka C, Bertermann R, Fonseca Guerra C, Bickelhaupt FM, Tacke R. Synthesis and structural characterisation of neutral pentacoordinate silicon(iv) complexes with a tridentate dianionic N,N,S chelate ligand. Dalton Trans 2012; 41:2148-62. [PMID: 22186745 DOI: 10.1039/c1dt11306b] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Claudia Kobelt
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, D-97074, Würzburg, Germany
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35
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Junold K, Burschka C, Tacke R. Activation of Nitriles by Trichloro[2‐(dialkylphosphanyl)imidazol‐1‐yl]silanes – Synthesis and Characterization of New Dinuclear Pentacoordinate Silicon(IV) Complexes with Bridging Imido‐Nitrogen Ligand Atoms. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201101041] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Konstantin Junold
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐31‐84609
| | - Christian Burschka
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐31‐84609
| | - Reinhold Tacke
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐31‐84609
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Jana A, Sarish SP, Roesky HW, Leusser D, Objartel I, Stalke D. Pentafluoropyridine as a fluorinating reagent for preparing a hydrocarbon soluble β-diketiminatolead(II) monofluoride. Chem Commun (Camb) 2011; 47:5434-6. [PMID: 21483924 DOI: 10.1039/c1cc11310k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A well-designed method for the preparation of a β-diketiminatolead(II) monofluoride has been developed using LPbNMe(2) (L = [CH{C(Me)(2,6-iPr(2)C(6)H(3)N)}(2)]) and pentafluoropyridine (C(5)F(5)N). The resulting LPbF was used for the synthesis of amidinatosilicon(II) monofluoride. Moreover the activation of a ketone was observed when the LPbF was treated with PhCOCF(3).
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Affiliation(s)
- Anukul Jana
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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37
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Junold K, Burschka C, Bertermann R, Tacke R. Novel neutral hexacoordinate benzamidinatosilicon(iv) complexes with SiN3OF2, SiN3OCl2, SiN3OBr2, SiN5O and SiN3O3 skeletons. Dalton Trans 2011; 40:9844-57. [DOI: 10.1039/c1dt10898k] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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