Results 211 to 220 of about 7,575 (247)

Protonation of decamethylsilicocene [bis(pentamethylcyclopentadienyl)silicon]

J. Chem. Soc., Chem. Commun., 1988
In general, decamethylsilicocene (1) reacts with Bronsted acids under oxidative addition yielding SiIV compounds of the type (Me5C5)2Si(H)X (2)–(7); as an exception, the cyclotetrasilane (Me5C5SiF)4(8) is formed in the reaction with tetrafluoroboric acid and has been characterized by an X-ray diffraction study.
Jutzi, Peter, HOLTMANN, U, Bögge, Hartmut, Müller, Achim   +3 more
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Bis(η5-pentamethylcyclopentadienyl)-and(η5cyclopentadienyl) (η5-pentamethylcyclopentadienyl)-platinium dications: Pt(IV) metallocenes

Journal of Organometallic Chemistry, 1994
Abstract Reaction of [Pt2(η5-C5Me5)2(η-Br)3]3+(Br−)3 with C5R5H (R = H,Me) in the presence of AgBF4 gives the first platinocenium dications, [Pt(η5-C5Me5)(η5-C5R5)]2+(BF4− )2. On electrochemical reduction, [pt(η5-C5Me5)2]2+ yields [Pt(η4-C5Me5H)(η2-C5Me5)]+ BF4−.
Oleg V. Gusev, Tat'yana A. Peganova, Mikhail G. Peterleitner, Svetlana M. Peregudova, Larisa I. Denisovich, Nikolai A. Ustynyuk, Peter M. Maitlis   +6 more
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Pentamethylcyclopentadienyl-rhodium and -iridium complexes

Journal of Organometallic Chemistry, 1975
Abstract The synthesis of the novel di-μ-hydridoiridium complexes [H 2 (IrC 5 Me 5 ) 2 X 2 ] (X = Br, Cl) is described. These complexes react with butadiene, but only in very polar solvents, to give η-1-methylallyl complexes, with phosphines to give [HIrC 5 Me 5 (X)(R 3 P)], and with AgOCOR to give [H 2 (IrC 5 Me 5 ) 2 OCOR] + .
D.S. Gill, P.M. Maitlis
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Pentamethylcyclopentadienyl imido compounds of chromium

Journal of the Chemical Society, Dalton Transactions, 1996
The interaction of the pentamethylcyclopentadienylchromium(III) complex [CrBr(µ-Br)(η-C5Me5)]2 with alkyl- and aryl-lithium amido compounds, LiNHR, gave products whose nature depends on the reactants and on reaction conditions. For the aryl (R) 2,6-Pri2C6H3 both [(η-C5Me5)Cr(µ-NR)(µ-NHR)(µ-Br)Cr(η-C5Me5)]1 and [Cr(η-C5Me5)(µ-NR)]22 were obtained ...
Andreas A. Danopoulos, Geoffrey Wilkinson, Tracy K. N. Sweet, Michael B. Hursthouse   +3 more
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Ammonolysis of Mono(pentamethylcyclopentadienyl) Titanium(IV) Derivatives

Inorganic Chemistry, 2000
Ammonolyses of mono(pentamethylcyclopentadienyl) titanium(IV) derivatives [Ti(eta5-C5Me5)X3] (X = NMe2, Me, Cl) have been carried out in solution to give polynuclear nitrido complexes. Reaction of the tris(dimethylamido) derivative [Ti(eta5-C5Me5)(NMe2)3] with excess of ammonia at 80-100 degrees C gives the cubane complex [[Ti(eta5-C5Me5)]4(mu3-N)4] (1)
A, Abarca, P, Gómez-Sal, A, Martín, M, Mena, J M, Poblet, C, Yélamos   +5 more
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Bis(trifluormethylisocyanid)-(η-pentamethylcyclopentadienyl)-cobalt. Darstellung und Oxidation zu Trifluormethylisocyanid-(η-pentamethylcyclopentadienyl)-dihalogeno-cobalt

Journal of Organometallic Chemistry, 1987
Abstract Ligand substitution in Cp * Co(CO) 2 (Cp * = C 5 (CH 3 ) 5 ) by trifluoromethyl isocyanide yields Cp * Co(CNCF 3 ) 2 . Due to the high electron density at the metal atom,the NC vibrations are shifted to low wavenumbers (1906, 1832 cm −1 ) compared to the free isocya This compound is rapidly oxidized by halogenes to the corresponding ...
Dieter Lentz, Brigitte Pötter
openaire   +1 more source

Intrazeolite organometallics Pentamethylcyclopentadienyl rhodium complexes

Microporous Materials, 1995
Abstract The incorporation of Cp∗ [ Cp ∗ = η 5 -(CH 3 ) 5 C 5 ] complexes of rhodium in Y-type zeolites has been studied. The preparation and characterization of intrazeolite complexes derived from (Cp∗RhCl)2(μ-Cl)2 (1) and Cp∗Rh(S)3+ (3) (where SH2O and CH2Cl2) are described. The reactivity of the rhodium complexes
Kenneth J. Balkus, Krystyna Nowinska
openaire   +1 more source

Pentamethylcyclopentadienyl‐Supported Cerocene(III) Complexes

European Journal of Inorganic Chemistry, 2017
The trivalent ate complex [Cp*2CeCl2K(thf)] (Cp* = C5Me5) was used in a diverse set of salt metathesis reactions. Equimolar reactions with LiNiPr2, LiN(SiHMe2)2, KN(SiMe3)2, and LiCH2C6H4‐o‐NMe2 gave the alkali metal‐free complexes [Cp*2Ce(NiPr2)], [Cp*2Ce{N(SiHMe2)2}], [Cp*2Ce{N(SiMe3)2}], and [Cp*2Ce(CH2C6H4‐o‐NMe2)].
David Schneider, Reiner Anwander
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SYNTHESES WITH THE REAGENT PENTAMETHYLCYCLOPENTADIENYL BROMIDE/SILVER TETRAFLUOROBORATE - THE PENTAMETHYLCYCLOPENTADIENYL CATION AS REACTIVE INTERMEDIATE

1992
Pentamethylcyclopentadienyl bromide 1 reacts with silver tetrafluoroborate with abstraction of the halide ion to form pentamethylcyclopentadienylium tetrafluoroborate (2). The 4-pi-antiaromatic cation in 2 can be trapped with different nucleophiles. Thus, 2 reacts with methanol to give 5-methoxy-1,2,3,4,5-pentamethyl-1,3-cyclopentadiene (4).
Jutzi, Peter, Mix, Andreas
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Mixed germylenes from (pentamethylcyclopentadienyl)germanium chloride and (pentamethylcyclopentadienyl)germanium tetrafluoroborate

Organometallics, 1986
Jutzi, Peter, HAMPEL, B, HURSTHOUSE, MB, HOWES, AJ   +3 more
openaire   +2 more sources