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Liu J, Shang J, Wei J, Gao F, Hou L, Zeng F, Li A, Wang W. An α-diiminato germylene family: syntheses, structures, and reactivity towards C-C coupled digermylene and digermylene oxide. Dalton Trans 2022; 51:8671-8679. [DOI: 10.1039/d2dt00981a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and reactivity of a rigid α-diiminate ligand supported chlorogermylene 2 was demonstrated. The reaction of 2 with hydride donor K[BH(sBu)3] yielded a hydride addition product, a five-membered 6π-aromatic...
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2
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Ritter C, Hänisch C. Bis(amido)diazadiarsetidinide and Amido(imino)arsenide Complexes of Divalent Metals. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Christian Ritter
- Department of Chemistry Philipps-Universität Marburg Hans-Meerwein-Straße 4 35032 Marburg Germany
| | - Carsten Hänisch
- Department of Chemistry Philipps-Universität Marburg Hans-Meerwein-Straße 4 35032 Marburg Germany
- Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps-Universität Marburg Hans-Meerwein-Straße 6 35032 Marburg Germany
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3
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Aysin RR, Lalov AV, Bukalov SS. Probing the aromaticity in 2,3-pyrido-annulated N-heterocyclic carbene and its heavier analogues. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Guthardt R, Bruhn C, Siemeling U. N-heterocyclic olefins as dative carbon donor ligands for diaminoplumbylenes: Syntheses and crystal structures of adducts with 1,3,4,5-tetramethyl-2-methyleneimidazoline. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.114959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Piskunov AV, Tsys KV, Chegerev MG, Cherkasov AV. Tin(II) Complexes Based on N-Alkyl-Substituted o-Amidophenolate Ligands: Acid–Base and Redox Transformations. RUSS J COORD CHEM+ 2019. [DOI: 10.1134/s1070328419090069] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ullah F, Shanmuganathan S, Schindler C, Jones PG, Heinicke JW. Influence of pyrido-annulation on N,N′-dineopentyl-imidazolin-2-ylidene and associated transition metal complexes; comparison with benzo-, naphtho- and quinoxalino-annulation. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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7
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Tsys KV, Chegerev MG, Fukin GK, Piskunov AV. Stable O,N-heterocyclic plumbylenes bearing sterically hindered o-amidophenolate ligands. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.09.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Chegerev MG, Piskunov AV. Chemistry of Complexes of Group 14 Elements Based on Redox-Active Ligands of the o-Iminoquinone Type. RUSS J COORD CHEM+ 2018. [DOI: 10.1134/s1070328418040036] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zabula AV, Guzei IA, West R, Li J, Rogachev AY. Oligomerization of N-Heterocyclic Silylene into Zwitterionic Silenes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606915] [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)
- Alexander V. Zabula
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry; University of Pennsylvania; 231 S. 34th St. Philadelphia PA 19104 USA
- Department of Chemistry; University of Wisconsin-Madison; 1101 University Ave Madison WI 53706 USA
| | - Ilia A. Guzei
- Department of Chemistry; University of Wisconsin-Madison; 1101 University Ave Madison WI 53706 USA
| | - Robert West
- Department of Chemistry; University of Wisconsin-Madison; 1101 University Ave Madison WI 53706 USA
| | - Jingbai Li
- Department of Chemistry; Illinois Institute of Technology; 3101 S. Dearborn St. Chicago IL 60616 USA
| | - Andrey Yu. Rogachev
- Department of Chemistry; Illinois Institute of Technology; 3101 S. Dearborn St. Chicago IL 60616 USA
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Zabula AV, Guzei IA, West R, Li J, Rogachev AY. Oligomerization of N-Heterocyclic Silylene into Zwitterionic Silenes. Angew Chem Int Ed Engl 2016; 55:13465-13469. [PMID: 27654127 DOI: 10.1002/anie.201606915] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 08/30/2016] [Indexed: 11/08/2022]
Abstract
N-Heterocyclic carbenes (NHC's) are known to serve as efficient substrates for the stabilization of various transient species possessing low-valent Group 14 elements and for the generation of double E=C bonds. Herein, we report that the thermal tri- and tetramerizations of pyridoannulated silylene 1 lead to the formation of remarkably stable silenes 2 and 3 featuring zwitterionic distribution of electron density. Co-oligomerization of 1 and its germanium analogue gives a related tetrameric product 4 containing low-valent germanium atom stabilized by binding with the partial carbene-character C atom. Bonding situations in 2-4 are best described as silene or germene with the significant zwitterionic distribution of electron density. The singlet diradical electronic state of 2 is 10 kcal mol-1 higher than the ground state configuration.
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Affiliation(s)
- Alexander V Zabula
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S. 34th St., Philadelphia, PA, 19104, USA. .,Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave, Madison, WI, 53706, USA.
| | - Ilia A Guzei
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave, Madison, WI, 53706, USA
| | - Robert West
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave, Madison, WI, 53706, USA
| | - Jingbai Li
- Department of Chemistry, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, IL, 60616, USA
| | - Andrey Yu Rogachev
- Department of Chemistry, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, IL, 60616, USA.
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Roselló-Merino M, Mansell SM. Synthesis and reactivity of fluorenyl-tethered N-heterocyclic stannylenes. Dalton Trans 2016; 45:6282-93. [PMID: 26757790 DOI: 10.1039/c5dt04060d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A fluorenyl (Fl) tethered diamine was synthesised by nucleophilic substitution of (bromoethyl)fluorene with a diisopropylphenyl (Dipp) substituted diamine to give FlC2H4N(H)C2H4N(H)Dipp (1a) in good yield (85%). Lithiation of 1a with n-BuLi proceeded with coordination of the Li cation to the aromatic fluorenide ring (2), and with subsequent equivalents of n-BuLi, the secondary amines were then sequentially deprotonated. A fluorenyl-tethered N-heterocyclic stannylene (NHSn) was synthesised from the reaction of 1a with SnN''2 {N'' = N(SiMe3)2} as a neutral dimeric species (5), and this was deprotonated with LiN'' to give the corresponding dianionic fluorenide-tethered NHSn (6). Reactions of [{Rh(cod)(μ-Cl)}2] with the mono-deprotonated ligand 2 led to the formation of a mixed-donor amide-amine Rh(i) compound (7), whereas reactions with the anionic NHSn 6 led to a Rh-fluorenyl complex of low stability with an uncoordinated pendent NHSn arm, which X-ray crystallography showed to be dimeric in the solid state.
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Affiliation(s)
- Marta Roselló-Merino
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
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Hsu CY, Chan LW, Lee GH, Peng SM, Chiu CW. Triphenylene-based tris-N-heterocyclic stannylenes. Dalton Trans 2015; 44:15095-8. [PMID: 25820476 DOI: 10.1039/c5dt00694e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Two planar tridentate N-heterocyclic stannylenes are synthesized from the corresponding 2,3,6,7,10,11-hexaamino-triphenylene and Sn[N(TMS)2]2. Multinuclear NMR and absorption spectra of these tris-stannylenes are reported. Molecular structure of the N-benzhydryl-substituted tris-stannylene is also realized.
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Affiliation(s)
- Chen-Yuan Hsu
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan.
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13
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Karwasara S, Siwatch RK, Jha CK, Nagendran S. Aminotroponiminatosilathio- and Siloxygermylenes: Reactivity Comparison. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00286] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Surendar Karwasara
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110
016, India
| | - Rahul Kumar Siwatch
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110
016, India
| | - Chandan Kumar Jha
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110
016, India
| | - Selvarajan Nagendran
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110
016, India
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