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Greenough J, Zhou Z, Wei Z, Petrukhina MA. Versatility of cyclooctatetraenyl ligands in rare earth metal complexes of the [M 2(COT) 3(THF) 2] (M = Y and La) type. Dalton Trans 2019; 48:5614-5620. [PMID: 30958499 DOI: 10.1039/c9dt00868c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Two new organometallic cyclooctatetraenyl complexes of the type [M2(COT)3(THF)2] (M = Y and La) have been prepared, using optimized synthetic procedures, and fully characterized by X-ray diffraction analysis, IR and 1H NMR spectroscopies. The structures can be represented as formed by the double-decker [M(COT)2]- anion with an asymmetrically bound cationic [M(COT)(THF)2]+ unit. The COT rings in the anionic sandwich are not equidistant from the metal with the M-COTcentroid distances measuring at 1.991(5) Å and 2.074(5) Å for [Y(COT)2]-vs. 2.045(4) Å and 2.154(5) Å for [La(COT)2]-. The sandwich fragments are η2-coordinated to the second metal center with the average M-C distances of 2.837(4) Å and 2.879(5) Å for yttrium and lanthanum complexes, respectively. The M-COTcentroid distances in the cationic unit are 1.962(4) Å for the former and 2.009(2) Å for the latter.
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Affiliation(s)
- Joshua Greenough
- Department of Chemistry, University at Albany, State University of New York, Albany, NY 12222, USA.
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Palumbo CT, Fieser ME, Ziller JW, Evans WJ. Reactivity of Complexes of 4fn5d1 and 4fn+1 Ln2+ Ions with Cyclooctatetraene. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00498] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chad T. Palumbo
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Megan E. Fieser
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Joseph W. Ziller
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - William J. Evans
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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Rausch J, Apostolidis C, Walter O, Lorenz V, Hrib CG, Hilfert L, Kühling M, Busse S, Edelmann FT. One ligand fits all: lanthanide and actinide sandwich complexes comprising the 1,4-bis(trimethylsilyl)cyclooctatetraenyl (=COT′′) ligand. NEW J CHEM 2015. [DOI: 10.1039/c5nj00991j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Twelve new lanthanide and actinide sandwich complexes containing the 1,4-bis(trimethylsilyl)cyclooctatetraenyl ligand (COT′′) have been prepared and structurally characterized by X-ray diffraction.
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Affiliation(s)
- Janek Rausch
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg
- 39106 Magdeburg
- Germany
| | - Christos Apostolidis
- European Commission
- Joint Research Centre
- Institute for Transuranium Elements
- 76125 Karlsruhe
- Germany
| | - Olaf Walter
- European Commission
- Joint Research Centre
- Institute for Transuranium Elements
- 76125 Karlsruhe
- Germany
| | - Volker Lorenz
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg
- 39106 Magdeburg
- Germany
| | - Cristian G. Hrib
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg
- 39106 Magdeburg
- Germany
| | - Liane Hilfert
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg
- 39106 Magdeburg
- Germany
| | - Marcel Kühling
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg
- 39106 Magdeburg
- Germany
| | - Sabine Busse
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg
- 39106 Magdeburg
- Germany
| | - Frank T. Edelmann
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg
- 39106 Magdeburg
- Germany
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Edelmann A, Lorenz V, Hrib CG, Hilfert L, Blaurock S, Edelmann FT. Steric Effects in Lanthanide Sandwich Complexes Containing Bulky Cyclooctatetraenyl Ligands. Organometallics 2012. [DOI: 10.1021/om3010993] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anja Edelmann
- Chemisches
Institut der Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, D-39106 Magdeburg,
Germany
| | - Volker Lorenz
- Chemisches
Institut der Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, D-39106 Magdeburg,
Germany
| | - Cristian G. Hrib
- Chemisches
Institut der Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, D-39106 Magdeburg,
Germany
| | - Liane Hilfert
- Chemisches
Institut der Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, D-39106 Magdeburg,
Germany
| | - Steffen Blaurock
- Chemisches
Institut der Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, D-39106 Magdeburg,
Germany
| | - Frank T. Edelmann
- Chemisches
Institut der Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, D-39106 Magdeburg,
Germany
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Fernández I, Davidson MG, Price RD, Ortiz FL. Solution NMR structural study of a mixed aggregate of N-lithium triphenylphosphazene and lithium bromide. Dalton Trans 2009:2438-42. [DOI: 10.1039/b821424g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Meermann C, Ohno K, Törnroos KW, Mashima K, Anwander R. Rare-Earth Metal Bis(dimethylsilyl)amide Complexes Supported by Cyclooctatetraenyl Ligands. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200800649] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Scepaniak JJ, Fulton MD, Bontchev RP, Duesler EN, Kirk ML, Smith JM. Structural and Spectroscopic Characterization of an Electrophilic Iron Nitrido Complex. J Am Chem Soc 2008; 130:10515-7. [DOI: 10.1021/ja8027372] [Citation(s) in RCA: 173] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeremiah J. Scepaniak
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, Cabot Corporation, 5401 Venice Avenue NE, Albuquerque, New Mexico 87113, and Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Meita D. Fulton
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, Cabot Corporation, 5401 Venice Avenue NE, Albuquerque, New Mexico 87113, and Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Ranko P. Bontchev
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, Cabot Corporation, 5401 Venice Avenue NE, Albuquerque, New Mexico 87113, and Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Eileen N. Duesler
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, Cabot Corporation, 5401 Venice Avenue NE, Albuquerque, New Mexico 87113, and Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Martin L. Kirk
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, Cabot Corporation, 5401 Venice Avenue NE, Albuquerque, New Mexico 87113, and Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Jeremy M. Smith
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, Cabot Corporation, 5401 Venice Avenue NE, Albuquerque, New Mexico 87113, and Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131
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Sterically Demanding Phosphinimides: Ligands for Unique Main Group and Transition Metal Chemistry. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2006. [DOI: 10.1016/s0065-3055(05)54006-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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Hecht M, Anaya SS, Hagenbach A, Abram U. Rhenium(V) and Technetium(V) Complexes with Phosphoraneimine and Phosphoraneiminato Ligands. Inorg Chem 2005; 44:3172-80. [PMID: 15847424 DOI: 10.1021/ic048210q] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Air-stable rhenium(V) nitrido complexes are formed when [ReOCl3(PPh3)2], [NBu4][ReOCl4], or [NBu4][ReNCl4] are treated with an excess of silylated phosphoraneiminates of the composition Me3SiNPPh3 or Ph2P(NSiMe3)CH2PPh2 in CH2Cl2. Complexes of the compositions [ReNCl(Ph2PCH2PPh2NH)2]Cl (1), [ReN(OSiMe3)(Ph2PCH2PPh2NH)2]Cl (2) or [ReNCl2(PPh3)2] (3) were isolated and structurally characterized. The latter compound was also produced during a reaction of the rhenium(III) precursor [ReCl3(PPh3)2(CH3CN)] and Me3SiNPPh3. Nitrogen transfer from the phosphorus to the rhenium atoms and the formation of nitrido ligands were observed in all examples. All products of reactions with an excess of the potentially chelating phosphoraneiminate Me3SiNP(Ph2)CH2PPh2 contain neutral Ph2PCH2PPh2NH ligands. The required protons are supplied by a metal-induced decomposition of the solvent dichloromethane. The Re-N(imine) bond lengths (2.055-2.110 A) indicate single bonds, whereas the N-P bond with lengths between 1.596 A and 1.611 A reflect considerable double bond character. An oxorhenium(V) phosphoraneiminato complex, the dimeric compound [ReOCl2(mu-N-Ph2PCH2PPh2N)]2 (4), is formed during the reaction of [NBu4][ReOCl4] with an equivalent amount of Ph2P(NSiMe3)CH2PPh in dry acetonitrile. The blue neutral complex with two bridging phosphoraneiminato units is stable as a solid and in dry solvents. It decomposes in solution, when traces of water are present. The rhenium-nitrogen distances of 2.028(3) and 2.082(3) A are in the typical range of bridging phosphoraneiminates and an almost symmetric bonding mode. Technetium complexes with phosphoraneimine ligands were isolated from reactions of [NBu4][TcOCl4] with Me3SiNPPh3, and [NBu4][TcNCl4] with Me3SiNP(Ph2)CH2PPh2. Nitrogen transfer and the formation of a five-coordinate nitrido species, [TcNCl2(HNPPh3)2] (5), was observed in the case of the oxo precursor, whereas reduction of the technetium(VI) starting material and the formation of the neutral technetium(V) complex [TcNCl2(Ph2PCH2PPh2NH)] (6) or [TcNCl(Ph2PCH2PPh2NH)2]Cl (7) was observed in the latter case. Both technetium complexes are air stable and X-ray structure determinations show bonding modes of the phosphoraneimines similar to those in the rhenium complexes.
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Affiliation(s)
- Maren Hecht
- Freie Universität Berlin, Institute of Chemistry, Fabeckstrasse 34-36, D-14195 Berlin, Germany
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Hagenbach A, Athenst�dt S, Dar�czi HE, Abram U, Alberto R. Rhenium(I) and Technetium(I) Tricarbonyl Complexes with Phosphoraneimines. Z Anorg Allg Chem 2004. [DOI: 10.1002/zaac.200400365] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Courtenay S, Wei P, Stephan DW. The syntheses and structures of lithium phosphinimide and phosphinimine complexes. CAN J CHEM 2003. [DOI: 10.1139/v03-162] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The preparation and structures of [Li(µ-NPt-Bu3)]4 1, [Li(µ-Cl)(HNPt-Bu3)]4 2, and [Li(µ-Cl)(HNPPh3)]4 3 are described. The structure of 1 stands in contrast to that of the only other known Li-phosphinimide derivative, [Li(µ-NPPh3)]6. The impact of the steric bulk on the aggregation and the geometries of the Li4N4 and Li4Cl4 cores are considered and discussed.Key words: lithium compounds, phosphinimine, phosphinimide, P-N ligands.
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Edelmann FT, Freckmann DMM, Schumann H. Synthesis and structural chemistry of non-cyclopentadienyl organolanthanide complexes. Chem Rev 2002; 102:1851-96. [PMID: 12059256 DOI: 10.1021/cr010315c] [Citation(s) in RCA: 406] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Frank T Edelmann
- Chemisches Institut, Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, D-39106 Magdeburg, Germany.
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Cristau HJ, Taillefer M, Rahier N. Lithium phosphonium azayldiides R3PNLi. Applications in organic synthesis and coordination chemistry. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(01)01430-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gröb T, Chitsaz S, Harms K, Dehnicke K. Phosphaniminate von Alkalimetallen: Die Kristallstrukturen von [KNPCy3]4, [KNPCy3]4·2OPCy3, [CsNPCy3]4·4OPCy3 und [Li4(NPPh3)(OSiMe2NPPh3)3(DME)]. Z Anorg Allg Chem 2002. [DOI: 10.1002/1521-3749(200202)628:2<473::aid-zaac473>3.0.co;2-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Neumüller B, Chitsaz S, Dehnicke K. 1, 3, 4, 4'-Tetra(triphenylphosphanimin)-2-iodo-2-butenal-4-carboniumiodid, [O=C(NPPh3)C(I)=C(NPPh3)-C(NPPh3)2]+I-. Z Anorg Allg Chem 2002. [DOI: 10.1002/1521-3749(200202)628:2<428::aid-zaac428>3.0.co;2-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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