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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 ...


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 ...


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 ...


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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