1
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Paskaruk KM, Emslie DJH, Britten JF. A comparison of the coordination behaviour of R 2PCH 2BMe 2 (R = Me vs. Ph) ambiphilic ligands with late transition metals. Dalton Trans 2023; 52:15712-15724. [PMID: 37815843 DOI: 10.1039/d3dt02538a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
A new synthesis that avoids the use of Me2PH is reported for (Me2PCH2BMe2)2, and this method was extended to the synthesis of (Ph2PCH2BMe2)2. The ligand precursor (Me2PCH2BMe2)2 did not react with [{M(μ-Cl)(cod)}2] (cod = 1,5-cyclooctadiene; M = Ir and Rh) or [PtCl2(cod)] at room temperature. However, after 12-48 hours at 65-70 °C, these reactions afforded (a) [Ir(cod)(μ-Cl)(Me2PCH2BMe2)] (1), (b) an equilibrium mixture of (Me2PCH2BMe2)2, [{Rh(μ-Cl)(cod)}2] and [Rh(cod)(μ-Cl)(Me2PCH2BMe2)] (2), and (c) cis-[Pt(μ-Cl)2(Me2PCH2BMe2)2] (3), respectively. By contrast, reactions between the phenyl-substituted analogue, (Ph2PCH2BMe2)2, and [{M(μ-Cl)(cod)}2] (cod = 1,5-cyclooctadiene; M = Ir and Rh) proceeded over the course of 1 hour at 20 °C to generate [M(cod)(μ-Cl)(Ph2PCH2BMe2)] (M = Ir (4) and Rh (5)), indicative of room temperature (Ph2PCH2BMe2)2 dissociation. Room temperature reactions of (Ph2PCH2BMe2)2 with [{Rh(μ-Cl)(coe)2}2] (coe = cyclooctene) using a 1 : 1 or 3 : 1 stoichiometry also afforded [{Rh(coe)(μ-Cl)(Ph2PCH2BMe2)}2] (6) or [RhCl(Ph2PCH2BMe2)3] (7), respectively, where the latter is a borane-appended analogue of Wilkinson's catalyst, and reactions of (Ph2PCH2BMe2)2 with [PtX2(cod)] (X = Cl or Me) yielded cis-[Pt(μ-Cl)2(Ph2PCH2BMe2)2] (8) and cis-[PtMe2(Ph2PCH2BMe2)2] (9). Compounds 1-9, (Me2PCH2BMe2)2 and (Ph2PCH2BMe2)2 were crystallographically characterized. In compounds 1-5 and 8, each chloride co-ligand is coordinated by the borane of an R2PCH2BMe2 ligand. Additionally, in the solid state structure of 6, each bridging chloride ligand interacts weakly with a pendent borane, and in 7, the chloride ligand is tightly coordinated to the borane of one Ph2PCH2BMe2 ligand and weakly coordinated to the borane of a second Ph2PCH2BMe2 ligand. By contrast, both boranes in 9 (and one of the three boranes in 7) are non-coordinated.
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Affiliation(s)
- Katia M Paskaruk
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - David J H Emslie
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - James F Britten
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
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2
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Rey Planells A, Espinosa Ferao A. Ring Strain Energies of Three-Membered Homoatomic Inorganic Rings El 3 and Diheterotetreliranes El 2Tt (Tt = C, Si, Ge): Accurate versus Additive Approaches. Inorg Chem 2022; 61:13846-13857. [PMID: 36001474 PMCID: PMC9449980 DOI: 10.1021/acs.inorgchem.2c01777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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Accurate ring strain energies (RSEs) for three-membered
symmetric
inorganic rings El3 and organic dihetero-monocycles El2C and their silicon El2Si and germanium El2Ge analogues have been computed for group 14–16 “El”
heteroatoms using appropriate homodesmotic reactions and calculated
at the DLPNO-CCSD-(T)/def2-TZVPP//B3LYP-D4/def2-TZVP(ecp) level. Rings
containing triels and Sn/Pb heteroatoms are studied as exceptions
to the RSE calculation as they either do not constitute genuine rings
or cannot use the general homodesmotic reaction scheme due to uncompensated
interactions. Some remarkable concepts already related to the RSE
such as aromaticity or strain relaxation by increasing the s-character
in the lone pair (LP) of the group 15–16 elements are analyzed
extensively. An appealing alternative procedure for the rapid estimation
of RSEs using additive rules, based on contributions of ring atoms
or endocyclic bonds, is disclosed. Accurate
ring strain energies (RSEs) are calculated for
saturated three-membered homoatomic inorganic rings El3 and diheterotetreliranes El2Tt (Tt = C, Si, Ge). Aromaticity,
lone-pair-induced strain relaxation for the group 15−16 elements,
and bond stiffness are extensively discussed as main factors affecting
the RSE. An attractive alternative procedure for fast estimation of
the RSE using additive rules is proposed.
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Affiliation(s)
- Alicia Rey Planells
- Departamento de Química Orgánica, Facultad de Química, Campus de Espinardo, Universidad de Murcia, 30100 Murcia, Spain
| | - Arturo Espinosa Ferao
- Departamento de Química Orgánica, Facultad de Química, Campus de Espinardo, Universidad de Murcia, 30100 Murcia, Spain
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3
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Rey Planells A, Espinosa Ferao A. Accurate Ring Strain Energies of Unsaturated Three-Membered Heterocycles with One Group 13-16 Element. Inorg Chem 2022; 61:6459-6468. [PMID: 35442022 PMCID: PMC9066411 DOI: 10.1021/acs.inorgchem.2c00067] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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High-quality ring
strain energy (RSE) data for 1H-unsaturated (CH)2X parent rings, where X is a group 13–16
element, are reported in addition to the 2H-isomers
of the pnictogenirene rings. RSE data are obtained from appropriate
homosdesmotic reactions and calculated at the DLPNO-CCSD(T)/def2-TZVPP//B3LYP-D3/def2-TZVP(ecp)
level. 1H-Tallirene and 1H-plumbirene
have unique donor–acceptor structures between an acetylene
π(CC) orbital and an empty p orbital of a metallylene subunit
(a Dewar–Chatt–Duncanson description) and therefore
cannot be described as proper rings but as pseudocyclic structures.
Also, 1H-indirene and 1H-oxirene
lack ring critical points and constitute borderline cases of pseudorings.
1H-Unsaturated rings exhibit enhanced RSE compared
to their saturated homologues. The mechanism of ring strain relaxation
by increasing the s character in the lone pair (LP) of group 15–16
elements is remarkable and increases on descending the groups. Furthermore,
RSE is affected by the aromatic character of group 13 rings and certain
aromatic or antiaromatic character in group 14 or 15–16 rings,
respectively, which tend to vanish on descending the group as shown
by NICS(1) values. 2H-Unsaturated rings were found
only for group 15 elements (although only 2H-azirine
shows a proper cyclic structure) and displayed lower RSE (higher stability)
than the corresponding 1H-isomers. Accurate ring strain energies (RSE) are
calculated for three-membered
1H-unsaturated rings containing a 13−16 group
element and group 15 2H-isomers. The presence or
absence of lone pairs at the heteroatom and the existence of intrinsic
or residual (anti)aromaticity were shown to affect the RSE.
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Affiliation(s)
- Alicia Rey Planells
- Departamento de Química Orgánica, Facultad de Química, Campus de Espinardo, Universidad de Murcia, 30100 Murcia, Spain
| | - Arturo Espinosa Ferao
- Departamento de Química Orgánica, Facultad de Química, Campus de Espinardo, Universidad de Murcia, 30100 Murcia, Spain
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4
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Planells AR, Ferao AE. Accurate Ring Strain Energy Calculations on Saturated Three-Membered Heterocycles with One Group 13-16 Element. Inorg Chem 2020; 59:11503-11513. [PMID: 32799495 DOI: 10.1021/acs.inorgchem.0c01316] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Accurate ring strain energy (RSE) data for parent (CH2)2X rings are reported, where X are group 13-16 elements (El) in their lowest oxidation state, from the second to the sixth row, with their covalence completed by bonds to H. They are obtained from appropriate homodesmotic and hyper-homodesmotic reactions at different levels up to the CCSD(T) level, thus providing a benchmark of high-quality reference RSE values, as well as acceptably accurate faster lower-level options. Derivatives of indium, thallium, and lead cannot be properly described by a three-member ring connectivity, because they display a unique donor-acceptor structure from an ethylene π(C═C) orbital to an empty p orbital of a metallylene subunit. The RSE of groups 13 and 14 heterocycles increases on descending in the group (except for Ga and Ge), while it decreases for groups 15 and 16. The latter is presumably due to a strain-releasing mechanism favored by the increase of p-character at the sp3-type atomic orbital used by El in the endocyclic El-C bonds, %p(El)El-C, originated by the tendency of the El lone pairs in groups 15-16 to increase their s-character. This strain-releasing mechanism does not exist in heavier tetrels, which keep almost unchanged the p-character in the endocyclic bonds at El, whereas for triels the p-character is still lower owing to their sp2-like hybridization. Remarkable linear correlations were found between the RSE and either the above-mentioned %p(El)El-C, the distal C-C bond distance or the relaxed force constants for the endocyclic bond angles.
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Affiliation(s)
- Alicia Rey Planells
- Depto. Quı́mica Orgánica, Facultad de Quı́mica, Campus de Espinardo, Universidad de Murcia, 30100 Murcia, Spain
| | - Arturo Espinosa Ferao
- Depto. Quı́mica Orgánica, Facultad de Quı́mica, Campus de Espinardo, Universidad de Murcia, 30100 Murcia, Spain
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5
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Tröndle S, Bannenberg T, Freytag M, Jones PG, Tamm M. Transition-Metal Complexes of Diphosphanes Containing the η7-Cycloheptatrienyl-η5-Cyclopentadienyl Titanium (Troticene) Sandwich Moiety. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sabrina Tröndle
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany
| | - Thomas Bannenberg
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Freytag
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter G. Jones
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany
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6
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Wen C, Yu G, Ou Y, Wang X, Zhang K, Chen Q. DDQ-promoted C(sp3) H phosphorylation of cycloheptatriene. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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7
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Tröndle S, Freytag M, Jones PG, Tamm M. Allyl Palladium Complexes of Cycloheptatrienyl-Cyclopentadienyl Phosphane Ligands in Buchwald-Hartwig Amination Reactions. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sabrina Tröndle
- Institut für Anorganische und Analytische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| | - Matthias Freytag
- Institut für Anorganische und Analytische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
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8
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Fandos R, Bruña S, Hernández C, Otero A, Rodríguez A, Ruiz MJ, Terreros P, Cuadrado I. Titanium thiosalicylate complexes: functional metalloligands for the construction of redox-active heterometallic architectures. Dalton Trans 2018; 47:15391-15398. [PMID: 30306985 DOI: 10.1039/c8dt02641f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The titanium complex [TiCp*(thiosal)(thiosalH)] (1) has been synthesised by reaction of [TiCp*Me3], Cp* = η5-C5Me5, with thiosalicylic acid (H2thiosal). Complex 1 reacts with [M(μ-OH)(COD)]2 (M = Rh, Ir) to yield the corresponding early-late heterobimetallic complexes [TiCp*(thiosal)2M(COD)] (M = Rh (2); Ir (3)). Carbon monoxide replaces the COD ligand in 2 and 3 leading to the respective dicarbonyl complexes [TiCp*(thiosal)2M(CO)2] (M = Rh (4); Ir (5)). Compound 4 reacts with PPh3 to yield the monocarbonyl derivative [TiCp*(thiosal)2Rh(CO)(PPh3)] (6). The reaction of compound 1 with LinBu yields the tetrametallic complex [{TiCp*(thiosal)2Li}2(THF)3(H2O)] (7). Compound 7 reacts with [RuCp*Cl(COD)] yielding the heterometallic complex [TiCp*(thiosal)2RuCp*] (8). The molecular structures of compounds 4, 5 and 7 have been studied by X-ray diffraction. From cyclic voltammetric (CV) and square wave voltammetric (SWV) experiments, we observed that attachment of the titanium moiety of precursor 1 to a late transition metal moiety through the sulfur atoms has a significant influence on the reduction behaviour of the Ti(iv) metal centre. Thus, monometallic 1 exhibits an irreversible reduction process at -1.15 V vs. SCE, whereas the CVs of heterobimetallic compounds 2-6 are characterized by the reversible or quasi-reversible one-electron reduction of the Ti(iv)/Ti(iii) system, suggesting a significant stabilization of the Ti(iii) reduced species. Likewise, substitution of the M(COD) diolefin fragment in 2 and 3 by the M(CO)2 carbonyl-containing moiety (in compounds 4 and 5) leads to a significant anodic shift in the titanium E1/2 reduction redox potentials.
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Affiliation(s)
- Rosa Fandos
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, Instituto de Nanociencia, Nanotecnología y Materiales Moleculares (INAMOL), Facultad de Ciencias del Medio Ambiente, Avd. Carlos III, s/n, 45071 Toledo, Spain.
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9
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Tröndle S, Tagne Kuate AC, Freytag M, Jones PG, Tamm M. Cycloheptatrienyl Cyclopentadienyl Titanium Phosphane Ligands in Palladium‐Catalyzed Suzuki–Miyaura Cross‐Coupling Reactions. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Sabrina Tröndle
- Institut für Anorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Alain C. Tagne Kuate
- Institut für Anorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Matthias Freytag
- Institut für Anorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
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10
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Cycloheptatrienyl dicarbollyl zirconium complexes: Building blocks for the preparation of multidecker sandwich complexes. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2016.11.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Yamamoto K, Higashida K, Nagae H, Tsurugi H, Mashima K. Synthesis and Characterization of Heterobimetallic Tantalum-Rhodium and Tantalum-Iridium Complexes Connected by a Tantalacyclopentadiene Fragment. Helv Chim Acta 2016. [DOI: 10.1002/hlca.201600180] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Keishi Yamamoto
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Toyonaka Osaka 560-8531 Japan
| | - Kosuke Higashida
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Toyonaka Osaka 560-8531 Japan
| | - Haruki Nagae
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Toyonaka Osaka 560-8531 Japan
| | - Hayato Tsurugi
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Toyonaka Osaka 560-8531 Japan
| | - Kazushi Mashima
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Toyonaka Osaka 560-8531 Japan
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12
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Espinosa Ferao A, Streubel R. Thiaphosphiranes and Their Complexes: Systematic Study on Ring Strain and Ring Cleavage Reactions. Inorg Chem 2016; 55:9611-9619. [PMID: 27618483 DOI: 10.1021/acs.inorgchem.6b01322] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arturo Espinosa Ferao
- Departamento
de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo 30100 Murcia, Spain
| | - Rainer Streubel
- Institut für Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
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13
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Pinkas J, Lamač M. Transformations of functional groups attached to cyclopentadienyl or related ligands in group 4 metal complexes. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.03.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Streubel R, Faßbender J, Schnakenburg G, Espinosa Ferao A. Formation of Transient and Stable 1,3-Dipole Complexes with P,S,C and S,P,C Ligand Skeletons. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00386] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rainer Streubel
- Institut
für Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany
| | - Jan Faßbender
- Institut
für Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany
| | - Gregor Schnakenburg
- Institut
für Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany
| | - Arturo Espinosa Ferao
- Departamento
de Quı́mica Orgánica, Universidad de Murcia,Campus de Espinardo, 30100 Murcia, Spain
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15
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Theuergarten E, Tagne Kuate AC, Freytag M, Tamm M. Colorimetric Detection of Small Molecules by a Frustrated Lewis Pair Containing a Phosphorus-Functionalized CycloheptatrienylCyclopentadienyl Titanium Sandwich Complex. Isr J Chem 2015. [DOI: 10.1002/ijch.201400147] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Werlé C, Bailly C, Karmazin-Brelot L, Le Goff XF, Pfeffer M, Djukic JP. First Stabilization of 14-Electron Rhodium(I) Complexes by Hemichelation. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405240] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Werlé C, Bailly C, Karmazin-Brelot L, Le Goff XF, Pfeffer M, Djukic JP. First Stabilization of 14-Electron Rhodium(I) Complexes by Hemichelation. Angew Chem Int Ed Engl 2014; 53:9827-31. [DOI: 10.1002/anie.201405240] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 06/04/2014] [Indexed: 11/06/2022]
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18
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Espinosa A, de las Heras E, Streubel R. Oxaphosphirane-Borane Complexes: Ring Strain and Migratory Insertion/Ring-Opening Reactions. Inorg Chem 2014; 53:6132-40. [PMID: 24902079 DOI: 10.1021/ic500536h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Arturo Espinosa
- Departamento
de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Edgar de las Heras
- Departamento
de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Rainer Streubel
- Institut für Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str.
1, 53121 Bonn, Germany
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19
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Wu X, Tamm M. Transition metal complexes supported by highly basic imidazolin-2-iminato and imidazolin-2-imine N-donor ligands. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2013.10.007] [Citation(s) in RCA: 128] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Latronico M, Todisco S, Gallo V, Englert U, Mastrorilli P. Synthesis of Heterodimetallic Complexes by Reaction of a Terminal Phosphido Pt Complex with Metal‐Based Nucleophiles and Electrophiles. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301188] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mario Latronico
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh) del Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy, http://www.dicatech.poliba.it/index.php?id=80&idp=208&ruolo=
- Istituto CNR di Chimica dei Composti Organometallici (ICCOM), Via Orabona 4, 70125 Bari, Italy
| | - Stefano Todisco
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh) del Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy, http://www.dicatech.poliba.it/index.php?id=80&idp=208&ruolo=
| | - Vito Gallo
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh) del Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy, http://www.dicatech.poliba.it/index.php?id=80&idp=208&ruolo=
| | - Ulli Englert
- Institut für Anorganische Chemie der RWTH, Landoltweg 1, 52074 Aachen, Germany
| | - Piero Mastrorilli
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh) del Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy, http://www.dicatech.poliba.it/index.php?id=80&idp=208&ruolo=
- Istituto CNR di Chimica dei Composti Organometallici (ICCOM), Via Orabona 4, 70125 Bari, Italy
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21
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Tagne Kuate AC, Pinkert L, Freytag M, Jones PG, Tamm M. The Reducing Ability of Cycloheptatrienyl-Cyclopentadienyl Zirconium Sandwich Complexes towards Silver(I). Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300441] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tagne Kuate AC, Sameni S, Freytag M, Jones PG, Tamm M. Phosphane-functionalized cycloheptatrienyl-cyclopentadienyl titanium sandwich complexes: phosphorus ligands with an integrated reducing agent for palladium(0) catalyst generation. Angew Chem Int Ed Engl 2013; 52:8638-42. [PMID: 23818449 DOI: 10.1002/anie.201304252] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 06/06/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Alain C Tagne Kuate
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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Tagne Kuate AC, Sameni S, Freytag M, Jones PG, Tamm M. Phosphane-Functionalized Cycloheptatrienyl-Cyclopentadienyl Titanium Sandwich Complexes: Phosphorus Ligands with an Integrated Reducing Agent for Palladium(0) Catalyst Generation. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304252] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Tagne Kuate AC, Mohapatra SK, Daniliuc CG, Jones PG, Tamm M. Mono- and Dilithiation of [(η7-C7H7)Ti(η5-C5Me5)] (Pentamethyltroticene) for the Synthesis of Troticenyl Monophosphanes and [2]Troticenophanes with C–P and C–Si Bridges. Organometallics 2012. [DOI: 10.1021/om300927r] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Alain C. Tagne Kuate
- Institut für Anorganische
und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Swagat K. Mohapatra
- Institut für Anorganische
und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Constantin G. Daniliuc
- Institut für Anorganische
und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische
und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische
und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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26
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Glöckner A, Tamm M. The organometallic chemistry of cycloheptatrienyl zirconium complexes. Chem Soc Rev 2012; 42:128-42. [PMID: 23027385 DOI: 10.1039/c2cs35321k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
This tutorial review summarizes the organometallic chemistry derived from the half-sandwich complex [(η(7)-C(7)H(7))ZrCl(tmeda)], which was used as an efficient and versatile starting material for the incorporation of monoanionic ligands into the cycloheptatrienyl zirconium coordination sphere by conventional salt metathesis reactions. A broad variety of ligands was employed, affording novel and previously inaccessible cycloheptatrienyl (sandwich) complexes of the type [(η(7)-C(7)H(7))Zr(Y)]; Y comprises pentadienyl, cyclopentadienyl, allyl, phospholyl, boratabenzene, imidazolin-2-iminato and amido systems. The cycloheptatrienyl ring in these systems usually acts as an "innocent spectator ligand", but reactivity can arise from the second ligand Y or the Lewis acidity of the, formally, Zr(+iv) center, which was probed in selected examples and put in perspective to related studies. The corresponding results emphasize why the use of [(η(7)-C(7)H(7))ZrCl(tmeda)] is clearly an advancement in the chemistry of the still fairly unexplored area of cycloheptatrienyl transition metal complexes.
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Affiliation(s)
- Andreas Glöckner
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Germany
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27
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Bauer J, Braunschweig H, Dewhurst RD. Metal-only Lewis pairs with transition metal lewis bases. Chem Rev 2012; 112:4329-46. [PMID: 22617052 DOI: 10.1021/cr3000048] [Citation(s) in RCA: 218] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jürgen Bauer
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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28
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Daniels DP, Deacon GB, Harakat D, Jaroschik F, Junk PC. Synthesis and characterisation of alkaline earth bis(diphenylphosphano)metallocene complexes and heterobimetallic alkaline earth metal/platinum(ii) complexes [Ae(thf)x(η5-C5H4PPh2)2Pt(Me)2] (Ae = Ca, Sr, Ba). Dalton Trans 2012; 41:267-77. [DOI: 10.1039/c1dt11324k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Tagne Kuate AC, Mohapatra SK, Daniliuc CG, Jones PG, Tamm M. Preparation and characterization of Cp-functionalized cycloheptatrienyl–cyclopentadienyl titanium sandwich complexes (troticenes). J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2011.10.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Glöckner A, Cui P, Chen Y, Daniliuc CG, Jones PG, Tamm M. Boratatrozircenes: cycloheptatrienyl zirconium boratabenzene sandwich complexes – evaluation of potential η6–η5 hapticity interconversions. NEW J CHEM 2012. [DOI: 10.1039/c2nj40059f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Glöckner A, Bannenberg T, Büschel S, Daniliuc CG, Jones PG, Tamm M. Cycloheptatrienyl Zirconium Sandwich Complexes with Lewis Basic Phospholyl Ligands (Phosphatrozircenes): Synthesis, Structure, Bonding and Coordination Chemistry. Chemistry 2011; 17:6118-28. [DOI: 10.1002/chem.201100104] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Indexed: 11/10/2022]
Affiliation(s)
- Andreas Glöckner
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo‐Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: (+49) 531‐391‐5309
| | - Thomas Bannenberg
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo‐Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: (+49) 531‐391‐5309
| | - Susanne Büschel
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo‐Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: (+49) 531‐391‐5309
| | - Constantin G. Daniliuc
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo‐Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: (+49) 531‐391‐5309
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo‐Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: (+49) 531‐391‐5309
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo‐Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: (+49) 531‐391‐5309
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Espinosa A, Streubel R. Computational Studies on Azaphosphiridines, or How to Effect Ring‐Opening Processes through Selective Bond Activation. Chemistry 2011; 17:3166-78. [DOI: 10.1002/chem.201002565] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Indexed: 11/12/2022]
Affiliation(s)
- Arturo Espinosa
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 30100 Murcia (Spain), Fax: (+34) 868‐884149
| | - Rainer Streubel
- Institut für Anorganische Chemie der Rheinischen Friedrich‐Wilhelms‐Universität Bonn, Gerhard‐Domagk‐Str. 1, 53121 Bonn (Germany), Fax: (+49) 228‐739616
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Bauer J, Braunschweig H, Damme A, Gruß K, Radacki K. Extending unsupported metal-only Lewis pairs to palladium. Chem Commun (Camb) 2011; 47:12783-5. [DOI: 10.1039/c1cc15561j] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Glöckner A, Arif AM, Ernst RD, Bannenberg T, Daniliuc CG, Jones PG, Tamm M. Coordination chemistry of half-open trozircenes: Adduct formation of [(η7-C7H7)Zr(η5-2,4-C7H11)] with isocyanides, phosphines and N-heterocyclic carbenes. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.06.049] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Braunschweig H, Fuß M, Mohapatra SK, Kraft K, Kupfer T, Lang M, Radacki K, Daniliuc CG, Jones PG, Tamm M. Synthesis and Reactivity of Boron-, Silicon-, and Tin-Bridged ansa-Cyclopentadienyl-Cycloheptatrienyl Titanium Complexes (Troticenophanes). Chemistry 2010; 16:11732-43. [DOI: 10.1002/chem.201001486] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2010] [Indexed: 11/06/2022]
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Büschel S, Daniliuc C, Jones PG, Tamm M. The ansa-zirconocene [bis(eta(5)-cyclopentadienyl)phenylphosphine]dichloridozirconium(IV). Acta Crystallogr C 2010; 66:m86-8. [PMID: 20203402 DOI: 10.1107/s0108270110004531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Accepted: 02/04/2010] [Indexed: 11/10/2022] Open
Abstract
In the title compound, [Zr(C(16)H(13)P)Cl(2)], the geometry at the metal atom is distorted tetrahedral; the Cl-Zr-Cl angle is 101.490 (16) degrees and the cyclopentadienyl (Cp) centroids subtend an angle of 122.63 (3) degrees at the Zr atom. The P atom lies 0.474 (3) and 0.496 (3) A out of the planes of the Cp rings. The C-P-C angle of 91.42 (7) degrees reflects the pincer effect of the two Cp rings. Three C-H...Cl, one C-H...P, one C-H...pi and one Cl...P interaction link the molecules to form thick layers parallel to the bc plane.
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Affiliation(s)
- Susanne Büschel
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Postfach 3329, 38023 Braunschweig, Germany
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Mohapatra SK, Büschel S, Daniliuc C, Jones PG, Tamm M. Selective lithiation and phosphane-functionalization of [(eta(7)-C7H7)Ti(eta(5)-C5H5)] (troticene) and its use for the preparation of early-late heterobimetallic complexes. J Am Chem Soc 2010; 131:17014-23. [PMID: 19863104 DOI: 10.1021/ja9080056] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The cycloheptatrienyl-cyclopentadienyl sandwich complex [(eta(7)-C(7)H(7))Ti(eta(5)-C(5)H(5))] (troticene) can be dilithiated (once at each ring) or selectively monolithiated, either at the seven- or five-membered ring, depending on the reaction conditions. Treatment of the resulting lithiotroticenes with ClPPh(2) afforded the corresponding troticenyl-phosphanes [(eta(7)-C(7)H(6)PPh(2))Ti(eta(5)-C(5)H(4)PPh(2))] (1), [(eta(7)-C(7)H(6)PPh(2))Ti(eta(5)-C(5)H(5))] (2), or [(eta(7)-C(7)H(7))Ti(eta(5)-C(5)H(4)PPh(2))] (3). The use of nBuLi/N,N',N',N'',N"-pentamethyldiethylenetriamine (pmdta) allowed us to isolate the lithium complexes [(eta(7)-C(7)H(6)Li)Ti(eta(5)-C(5)H(4)Li)] x pmdta (4) and [(eta(7)-C(7)H(7))Ti(eta(5)-C(5)H(4)Li)] x pmdta (5), which were structurally characterized by X-ray diffraction analyses. Reaction of the monophosphane 3 with Mo(CO)(6) and [(tht)AuCl] (tht = tetrahydrothiophene) afforded the heterobimetallic complexes [(3)Mo(CO)(5)] (6) and [(3)AuCl] (7) and also the trimetallic species [(3)(2)AuCl] (8). The reaction of trans-[PtCl(2)(SEt(2))(2)] with the diphosphane 1 led to the formation of cis-[(1)PtCl(2)] (9), whereas the complexes trans-[(2)(2)PtCl(2)] (10) and trans-[(3)(2)PtCl(2)] (11) were isolated by reaction of two equivalents of the monophosphanes 2 and 3 with trans-[PtCl(2)(SEt(2))(2)]. The X-ray crystal structures of 6-11 are also reported.
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Affiliation(s)
- Swagat K Mohapatra
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
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Büschel S, Daniliuc C, Jones PG, Tamm M. Ambiphilic Reactivity of a Phosphane-Functionalized Cycloheptatrienyl−Cyclopentadienyl Zirconium Sandwich Complex. Organometallics 2010. [DOI: 10.1021/om9009763] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Susanne Büschel
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Constantin Daniliuc
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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39
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Braunschweig H, Radacki K, Schwab K. An early–late heterobimetallic complex with an unsupported dative bond: synthesis and structure of [(Cy3P)2Pt–ZrCl4]. Chem Commun (Camb) 2010; 46:913-5. [DOI: 10.1039/b921608a] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Glöckner A, Tamm M, Arif AM, Ernst RD. A New Versatile Approach to Substituted Cyclopentadienyl−Cycloheptatrienyl Complexes of Zirconium (Trozircenes). Organometallics 2009. [DOI: 10.1021/om900847y] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Andreas Glöckner
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Atta M. Arif
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
| | - Richard D. Ernst
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
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Glöckner A, Bannenberg T, Tamm M, Arif AM, Ernst RD. Cycloheptatrienyl-Pentadienyl Complexes of Zirconium (Half-Open Trozircenes): Syntheses, Structures, Bonding, and Chemistry. Organometallics 2009. [DOI: 10.1021/om900456s] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Andreas Glöckner
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Thomas Bannenberg
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Atta M. Arif
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
| | - Richard D. Ernst
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
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