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258 Newest Publications about the topic solution

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Water-Soluble-Phosphines-Assisted Cobalt Separation in Cobalt-Catalyzed Hydroformylation

13-09-2013 | László T. Mika; László Orha; Eddie van Driessche; Ron Garton; Katalin Zih-Perényi; István T. Horváth, Organometallics, 2013

The hydroformylation of octene-1 and the removal of Co2(CO)8 and HCo(CO)4 from the reaction products including commercial C9 OXO-product were studied under biphasic conditions using an aqueous solution of different electron-donating sulfonated phosphine RnP(C6H4-m-SO3Na)2 (n = 0, 1, 2; R = Me, ...


Tetrahedral [HnPt4(CO)4(P∧P)2]n+ (n = 1, 2; P∧P = CH2═C(PPh2)2) Cationic Mono- and Dihydrido Carbonyl Clusters Obtained by Protonation of the Neutral Pt4(CO)4(P∧P)2

11-09-2013 | Iacopo Ciabatti; Cristina Femoni; Maria Carmela Iapalucci; Giuliano Longoni; Stefano Zacchini, Organometallics, 2013

The reaction of [Pt12(CO)24]2– with CH2═C(PPh2)2 (P∧P) results in the neutral tetrahedral cluster Pt4(CO)4(P∧P)2. This reacts with strong acids such as HBF4 to afford, first, the [HPt4(CO)4(P∧P)2]+ monohydride monocation and, then, the [H2Pt4(CO)4(P∧P)2]2+ dihydride dication. The three clusters ...


Group 12 Metal Complexes of N-Heterocyclic Ditopic Carbanionic Carbenes

09-09-2013 | Jordan B. Waters; Robert S. P. Turbervill; Jose M. Goicoechea, Organometallics, 2013

Reaction of the N-heterocyclic carbene 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene (IPr) with M(mes)2 (M = Zn, Cd) in diethyl ether afforded the Lewis acid–base adducts [M(IPr)(mes)2] (M = Zn (1), Cd (2)) in quantitative yields. An analogous reaction between Hg(mes)2 and IPr failed to form ...


Unsymmetrically Substituted 1,1′-Biferrocenylenes Maintain Class III Mixed-Valence Character

05-09-2013 | Rochus Breuer; Michael Schmittel, Organometallics, 2013

UV–vis–near-IR electronic absorption spectra of unsymmetrically substituted derivatives of 1,1′-biferrocenylene (bis(fulvalene)diiron = BFD) have been systematically evaluated upon oxidation using spectroelectrochemical techniques. Upon reversible electrochemical oxidation to the BFD+ monocation ...


Reactions of an Al–P-Based Frustrated Lewis Pair with Carbonyl Compounds: Dynamic Coordination of Benzaldehyde, Activation of Benzoyl Chloride, and Al–C Bond Cleavage with Benzamide

04-09-2013 | Werner Uhl; Christian Appelt, Organometallics, 2013

Treatment of the Al/P-based frustrated Lewis pair (FLP) Mes2PC(═CHPh)Al(CMe3)2 (1) with benzaldehyde afforded the adduct 2 with a five-membered AlCPCO heterocycle. The carbonyl oxygen atom is bound to aluminum and the carbonyl carbon atom to phosphorus. 2 is dynamic in solution at room ...


Reactions of Five-Coordinate Platinum(IV) Complexes with Molecular Oxygen

26-08-2013 | Margaret L. Scheuermann; Avery T. Luedtke; Susan K. Hanson; Ulrich Fekl; Werner Kaminsky; Karen I. Goldberg, Organometallics, 2013

The reactions of various five-coordinate Pt(IV) complexes with molecular oxygen have been studied. In arene solution, the complexes (tBuMe2nacnac)PtMe3 (1; tBuMe2nacnac– = [((4-tBu-2,6-Me2C6H2)NC(CH3))2CH]−), (Me3Me-nacnac)PtMe3 (2; Me3Me-nacnac– = [((2,4,6-Me3C6H2)NC(CH3))2CCH3]−), and ...


Theoretical Study on Copper-Catalyzed S-Arylation of Thiophenols with Aryl Halides: Evidence Supporting the LCu(I)-SPh Active Catalyst and Halogen Atom Transfer Mechanism

23-08-2013 | Song-Lin Zhang; Hui-Jun Fan, Organometallics, 2013

A systematic theoretical study on reaction mechanisms for copper-catalyzed Ullmann S-arylation reactions of thiophenols with aryl halides is reported herein. The equilibriums and consequent relative concentrations of possible copper species in the reaction solution were carefully evaluated to ...


η2-Allenyl- and η2-Alkynylphosphonium Complexes of Platinum

21-08-2013 | Annie L. Colebatch; Ian A. Cade; Anthony F. Hill; Mohan M. Bhadbhade, Organometallics, 2013

The reaction of the propargylic salt [Ph3PCH2C≡CH]PF6 with [Pt(C2H4)(PPh3)2] affords the η2-allenylphosphonium salt [Pt(η2-CH2═C═CHPPh3)(PPh3)2]PF6 via a metal-mediated propargylic rearrangement. Isomerization of the complex occurs in solution to generate the salt ...


Tuning the Dissociation of the Fe–PPh2(OR) Bond in Chiral-at-Metal Complexes [CpFe(Prophos)PPh2(OR)]PF6 (R = Me, Et, iPr, tBu). The Preparative Trick of N2 Bubbling

21-08-2013 | Henri Brunner; Takaki Kurosawa; Manfred Muschiol; Takashi Tsuno; Gábor Balázs; Michael Bodensteiner, Organometallics, 2013

The compounds (RFe,RC)-/(SFe,RC)-[CpFe(Prophos)PPh(OMe)2]PF6 and (RFe,RC)-/(SFe,RC)-[CpFe(Prophos)PPh2(OR)]PF6 (R = Me, Et, iPr, tBu) were synthesized, starting from (RFe,RC)-/(SFe,RC)-[CpFe(Prophos)NCMe]PF6, and characterized, including X-ray analyses. Bubbling a stream of N2 through the ...


New Luminescent Ag2Au2 Heteronuclear Alkynyl–Phosphine Complexes and Recognition of Homocysteine and Cysteine

20-08-2013 | Yi Jiang; Yong-Tao Wang; Zheng-Gen Ma; Zhi-Hong Li; Qiao-Hua Wei; Guo-Nan Chen, Organometallics, 2013

The four heteronuclear clusters [Ag2Au2(μ-dpppy)3(C≡CC6H4R-4)2](ClO4)2 (R = H (1) CH3 (2), COOCH3 (3), CHO (4)) were prepared by the self-assembly reaction between (AuC≡C6H4R-4)n (R = H, CH3, COOCH3, CHO) and [Ag2(μ-dpppy)3]2+ (dpppy = 2,6-bis(diphenylphosphino)pyridine) and characterized by ...


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