FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2034144716> ?p ?o ?g. }

• W2034144716 endingPage "534" @default.
• W2034144716 startingPage "527" @default.
• W2034144716 abstract "Rh(I) and Ir(I) complexes of the type [Rh(cod)(η2-TMPP)]1+ (1) and M(cod)(η2-TMPP-O) (M = Rh (2), Ir (3); cod = cyclooctadiene; TMPP = tris(2,4,6-trimethoxyphenyl)phosphine; TMPP-O = mono-demethylated form of TMPP) have been isolated from reactions of [M(cod)Cl]2 with M′BF4 (M′ = Ag+, K+, Na+) followed by addition of the tertiary phosphine ligand. This chemistry is dependent on the identity of the metal, as both the cationic phosphine complex and the neutral phosphino-phenoxide compound are stable for Rh(I), whereas only the latter is stable for Ir(I). The three complexes have been characterized by IR and NMR (1H and 31P) spectroscopies as well as by cyclic voltammetry. The 1H NMR spectrum of [Rh(cod)(η2-TMPP)]1+ (1) is in accord with the formula and reveals that the TMPP phenyl rings are undergoing rapid exchange between coordinated and non-coordinated modes; the corresponding spectra of 2 and 3 support free rotation about the PC bonds of the unbound phenyl rings with no fluxionality of the bound demethylated ring. The 31P{1H} NMR spectrum of the neutral species 2 exhibits a significant upfield shift with respect to the analogous cationic compound 1. This shielding is the result of improved electron donation to the metal from a phenoxide group as compared to an ether substituent. In situ addition of CO to the reaction between TMPP and [Rh(cod)Cl]2 or [Ir(cod)Cl]2 in the presence of M′BF4 results in the isolation of the monocarbonyl species [Rh(TMPP)(η2-TMPP)(CO)][BF4] (5) and the stable dicarbonyl compound [Ir(TMPP)2(CO)2][BF4] (4), respectively. Single crystal X-ray data for 4·CH2Cl2:P1, a = 13.512(2), b = 18.348(3), c = 13.358(2) Å, α = 97.26(1), β = 90.55(1), γ = 95.02(1)°, V = 3272(2) Å3, Z = 2, R = 0.051, Rw = 0.065. The geometry of 4 is square planar, with essentially ideal angles for the mutually trans disposed phosphine and carbonyl ligands, as found in earlier studies for the analogous Rh dicarbonyl compound. The 1H NMR spectrum of 4 supports the assignment of magnetically equivalent phosphorus nuclei in solution. The results of this study indicate that cyclooctadiene is a particularly strong ligand for monovalent late transition metals ligated by TMPP, to the extent that it is inert with respect to substitution in the absence of π-acceptor ligands such as carbon monoxide." @default.
• W2034144716 created "2016-06-24" @default.
• W2034144716 creator A5008722248 @default.
• W2034144716 creator A5018882595 @default.
• W2034144716 creator A5054173126 @default.
• W2034144716 creator A5056201103 @default.
• W2034144716 date "1995-12-01" @default.
• W2034144716 modified "2023-09-26" @default.
• W2034144716 title "Chemistry of tris(2,4,6-trimethoxyphenyl)phosphine with rhodium(I) and iridium(I) olefin complexes" @default.
• W2034144716 cites W1542495843 @default.
• W2034144716 cites W1963673802 @default.
• W2034144716 cites W1964246118 @default.
• W2034144716 cites W1965517998 @default.
• W2034144716 cites W1974938101 @default.
• W2034144716 cites W1981818075 @default.
• W2034144716 cites W1982307538 @default.
• W2034144716 cites W1984401423 @default.
• W2034144716 cites W1985608996 @default.
• W2034144716 cites W1990658071 @default.
• W2034144716 cites W1993225556 @default.
• W2034144716 cites W1995723748 @default.
• W2034144716 cites W1998795452 @default.
• W2034144716 cites W2005395371 @default.
• W2034144716 cites W2005508085 @default.
• W2034144716 cites W2006478112 @default.
• W2034144716 cites W2012241086 @default.
• W2034144716 cites W2018304247 @default.
• W2034144716 cites W2022723276 @default.
• W2034144716 cites W2024893960 @default.
• W2034144716 cites W2026414432 @default.
• W2034144716 cites W2029991064 @default.
• W2034144716 cites W2032862729 @default.
• W2034144716 cites W2035825680 @default.
• W2034144716 cites W2040744996 @default.
• W2034144716 cites W2061249827 @default.
• W2034144716 cites W2063850563 @default.
• W2034144716 cites W2071568855 @default.
• W2034144716 cites W2074631259 @default.
• W2034144716 cites W2075925415 @default.
• W2034144716 cites W2082173700 @default.
• W2034144716 cites W2089270448 @default.
• W2034144716 cites W2089963136 @default.
• W2034144716 cites W2091661408 @default.
• W2034144716 cites W2095320448 @default.
• W2034144716 cites W2164158595 @default.
• W2034144716 cites W2169357183 @default.
• W2034144716 cites W2172104651 @default.
• W2034144716 cites W2950025333 @default.
• W2034144716 cites W2951038238 @default.
• W2034144716 cites W2951769641 @default.
• W2034144716 cites W2952943900 @default.
• W2034144716 cites W3005498563 @default.
• W2034144716 cites W3137384673 @default.
• W2034144716 cites W1504864805 @default.
• W2034144716 doi "https://doi.org/10.1016/0020-1693(95)04579-1" @default.
• W2034144716 hasPublicationYear "1995" @default.
• W2034144716 type Work @default.
• W2034144716 sameAs 2034144716 @default.
• W2034144716 citedByCount "30" @default.
• W2034144716 countsByYear W20341447162012 @default.
• W2034144716 countsByYear W20341447162015 @default.
• W2034144716 countsByYear W20341447162016 @default.
• W2034144716 countsByYear W20341447162018 @default.
• W2034144716 countsByYear W20341447162020 @default.
• W2034144716 countsByYear W20341447162023 @default.
• W2034144716 crossrefType "journal-article" @default.
• W2034144716 hasAuthorship W2034144716A5008722248 @default.
• W2034144716 hasAuthorship W2034144716A5018882595 @default.
• W2034144716 hasAuthorship W2034144716A5054173126 @default.
• W2034144716 hasAuthorship W2034144716A5056201103 @default.
• W2034144716 hasConcept C116569031 @default.
• W2034144716 hasConcept C155647269 @default.
• W2034144716 hasConcept C161790260 @default.
• W2034144716 hasConcept C170493617 @default.
• W2034144716 hasConcept C178790620 @default.
• W2034144716 hasConcept C183882617 @default.
• W2034144716 hasConcept C185592680 @default.
• W2034144716 hasConcept C188027245 @default.
• W2034144716 hasConcept C2777716191 @default.
• W2034144716 hasConcept C2778689049 @default.
• W2034144716 hasConcept C2779910884 @default.
• W2034144716 hasConcept C2780407432 @default.
• W2034144716 hasConcept C2781014771 @default.
• W2034144716 hasConcept C51886252 @default.
• W2034144716 hasConcept C521398313 @default.
• W2034144716 hasConcept C528581852 @default.
• W2034144716 hasConcept C544153396 @default.
• W2034144716 hasConcept C55493867 @default.
• W2034144716 hasConcept C71240020 @default.
• W2034144716 hasConceptScore W2034144716C116569031 @default.
• W2034144716 hasConceptScore W2034144716C155647269 @default.
• W2034144716 hasConceptScore W2034144716C161790260 @default.
• W2034144716 hasConceptScore W2034144716C170493617 @default.
• W2034144716 hasConceptScore W2034144716C178790620 @default.
• W2034144716 hasConceptScore W2034144716C183882617 @default.
• W2034144716 hasConceptScore W2034144716C185592680 @default.
• W2034144716 hasConceptScore W2034144716C188027245 @default.
• W2034144716 hasConceptScore W2034144716C2777716191 @default.

• next