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Rhodamine–Ferrocene Conjugate Chemosensor for Selectively Sensing Copper(II) with Multisignals: Chromaticity, Fluorescence, and Electrochemistry and Its Application in Living Cell Imaging

20-May-2015 | Yuan Fang; Yi Zhou; Qingqing Rui; Cheng Yao, Organometallics, 2015

A ferrocene unit is introduced into the salicylaldehyde Rhodamine 6G hydrazone with an alkynyl group to constitute a new chemosensor, R6G-FC, for specifically sensing Cu2+ over other metal ions with multisignals. Upon interaction with Cu2+ in aqueous solution, R6G-FC expresses a detectable ...

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Azole Assisted C–H Bond Activation Promoted by an Osmium-Polyhydride: Discerning between N and NH

05-May-2015 | Beatriz Eguillor; Miguel A. Esteruelas; Israel Fernández; Mar Gómez-Gallego; Agustí Lledós; Mamen Martín-Ortiz; Mont ..., Organometallics, 2015

The capacity of the hexahydride complex OsH6(PiPr3)2 (1) to discern between the nitrogen atom and the NH unit in the azole assisted aryl C–H bond activation has been investigated. Complex 1 reacts with 2-phenylimidazole to give OsH3{κ2-C,N-(C6H4-imidazole)}(PiPr3)2 (2), which has been ...

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Electronic Control of Metal-Centered Chirality in η5:κS-Indenyl-Sulfanyl and -Sulfinyl Rhodacycles of 2-Phenylpyridine

28-Apr-2015 | Robert W. Baker; Peter Turner; Ian J. Luck, Organometallics, 2015

Cyclometalation of 2-phenylpyridine with the η5:κS-indenyl-sulfanyl and -sulfinyl rhodium dichloride complexes rac-8, (pR*,RS*)-9, and (pR*,SS*)-9 in the presence of AgSbF6 provided the rhodacyclic complexes 10, 11, and 12, respectively, in yields ranging from 72% to 92%. The complexes were ...

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Synthesis and Reactivity of Thioether-Dithiolate-Bridged Multi-iron Complexes

23-Apr-2015 | Ying Li; Yahui Zhang; Dawei Yang; Yang Li; Puhua Sun; Baomin Wang; Jingping Qu, Organometallics, 2015

The novel thioether-dithiolate-bridged diiron complex [Cp*Fe(μ-1κ3SSS′:2κ2SS-tpdt)FeCp*] (1, Cp* = η5-C5Me5; tpdt = S(CH2CH2S−)2) has been prepared by the reaction of [Cp*FeCl]2 with Li2(tpdt) in THF. Given the thermodynamic instability of 1, a one-electron oxidation was performed with Fc·PF6 (Fc ...

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Aromatic PCN Palladium Pincer Complexes. Probing the Hemilability through Reactions with Nucleophiles

22-Apr-2015 | André Fleckhaus; Abdelrazek H. Mousa; Nasir Sallau Lawal; Nitsa Kiriakidou Kazemifar; Ola F. Wendt, Organometallics, 2015

A series of unsymmetrical PCN pincer ligands (1-(3-((di-tert-butylphosphino)methyl)phenyl)-N,N-dialkylmethanamine) were cyclometalated with palladium to generate a series of new PCN supported Pd(II) chloro complexes, (PCN)PdCl (4–6), where alkyl = methyl, ethyl, and n-propyl, which were fully ...

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Coordination of a Triphosphine–Silane to Gold: Formation of a Trigonal Pyramidal Complex Featuring Au+→Si Interaction

08-Apr-2015 | Pauline Gualco; Sonia Mallet-Ladeira; Hajime Kameo; Hiroshi Nakazawa; Maxime Mercy; Laurent Maron; Abderrahmane Amgo ..., Organometallics, 2015

Coordination of the triphosphine–fluorosilane [o-(iPr2P)C6H4]3SiF to AuCl results in the formation of a trigonal pyramidal cationic complex. Though cationic, the gold center acts as a Lewis base and is engaged in significant Au→Si interaction, as substantiated by X-ray diffraction and NMR ...

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Amidate-Ligated Complexes of Rhodium(I): A Showcase of Coordination Flexibility

01-Apr-2015 | Marcus W. Drover; Laurel L. Schafer; Jennifer A. Love, Organometallics, 2015

Reaction of the amidate ligand salts Na[N(Dipp)C(O)R] (R = Ph (1a), tBu (1b); Dipp = 2,6-diisopropylphenyl) with [Rh(NBD)Cl]2 (NBD = norbornadiene) proceeds to give the dirhodium(I) complexes [Rh2{μ2-N,O-N(Dipp)C(O)R}2(NBD)2] (R = Ph (2a), tBu (2b)) with variable coordination behavior. For ...

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Synthesis, Structures, and Temperature-Dependent Photoluminescence of 1,4-Diphenyl-1-telluro-1,3-butadiene Incorporated in a Dibenzobarrelene Skeleton and Derivatives

26-Mar-2015 | Tatsuro Annaka; Norio Nakata; Akihiko Ishii, Organometallics, 2015

1,4-Diphenyl-1-telluro-1,3-butadiene incorporated in a dibenzobarrelene skeleton was synthesized with a good yield by an intramolecular Diels–Alder reaction of the corresponding 1-(9-anthyltelluro)enyne. Oxidation and bromination of the telluride yielded telluroxide and hypervalent ...

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Cyclopentadienyl/Phenyl Attraction in CpM–L–E–Ph Compounds by CH/π Interactions

18-Mar-2015 | Henri Brunner; Takashi Tsuno, Organometallics, 2015

In the solid state and also in solution CpM–L–E–Ph compounds adopt preferential conformations, in which C–H bonds of the Cp ligand bind to the π system of the phenyl substituent. This holds for CpMo(CO)2–amidinato and −thioamidato as well as for CpM–P(OPh)3 complexes. In the solid state this is ...

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Microsolvation, Dimerization, and sp2-Stereoinversion of Monomeric α-(2,6-Diisopropylphenyl)vinyllithium

11-Mar-2015 | Rudolf Knorr; Jakob Ruhdorfer; Petra Böhrer, Organometallics, 2015

The title compound is entirely monomeric in THF as the solvent, but its two ortho-diisopropyl substituents (in contrast to two tert-butyl groups) do not suffice to prevent its dimerization in Et2O: At −107 °C, the disolvated dimer (43% of the total material in monomeric formula units) was ...

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