Some reactions of Ni–Mo and Ni–W propargylic cations with nucleophiles

Chetcuti, Michael J.; McDonald, Steven R.

doi:10.1016/j.jorganchem.2004.03.011

Cited by 8 publications

(6 citation statements)

References 20 publications

(43 reference statements)

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“…However side products that result from the addition of hydroxide (200c) and of ethoxide ions (200d) present in the wet solution to the cationic center were also isolated. 246…”

Section: Hydride Addition To Carbocationsmentioning

confidence: 99%

Hydrocarbyl Ligand Transformations on Heterobimetallic Complexes

2007

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“…However side products that result from the addition of hydroxide (200c) and of ethoxide ions (200d) present in the wet solution to the cationic center were also isolated. 246…”

Section: Hydride Addition To Carbocationsmentioning

confidence: 99%

Hydrocarbyl Ligand Transformations on Heterobimetallic Complexes

2007

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“…A number of previous studies have focused on the reactions of complexes 1 with unsaturated hydrocarbon species such as alkynes and allenes. – More recently, a study of the reactions of 1 with activated alkenes was initiated. Methylacrylate, CH 2 CHCO 2 Me, reacted in an unprecedented fashion with 1a to afford a complex which contained an allylic ligand that resulted from the tail to tail dimerization of two methylacrylate units.…”

Section: Introductionmentioning

confidence: 99%

Carbon−Phosphorus Bond Cleavage in Allyldiphenylphosphine by a Heterobimetallic Ni═Mo Complex and Formation of an Electronically Unsaturated NiMo₂ μ-Diphenylphosphido Cluster

et al. 2008

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The unsaturated nickel-molybdenum complex [(η-C 5 Me 5 )NidMo(CO) 3 (η-C 5 H 5 )] (NidMo), 1, reacts with allyldiphenylphosphine (ADPP) to give the complex [(η-C 5 Me 5 )Ni(µ-CO) 2 Mo(CO)(κ 1 (P)-PPh 2 CH 2 CHdCH 2 )(η-C 5 H 5 )] (Ni-Mo), 2, which is in equilibrium with the starting materials at ambient temperature. Nevertheless, orange crystals of complex 2 could be isolated from the solution, and a single-crystal X-ray diffraction study confirmed that the phosphine ligand is bound to the molybdenum atom via the phosphorus atom alone. Prolonged heating of complex 1 with excess ADPP led to activation of the P-C allyl bond and to the isolation of the unsaturated trinuclear NiMo 2 µ-diphenylphosphido cluster [(η-C 5 Me 5 )NiMo 2 (η-C 5 H 5 ) 2 (µ 3 -CO)(µ-PPh 2 )(CO) 2 ], 3. The structure of this 46-electron cluster was established spectroscopically and by a single-crystal X-ray diffraction study. It is electronically unsaturated and contains a formal ModMo double bond that is spanned by a µ-PPh 2 ligand; the molecule exhibits effective mirror plane symmetry in solution, and in the solid state, an approximate mirror plane is also observed.

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“…We share these interests and have been studying the reactions of [Cp aNi(CO)-M(CO) 3 Cp b ] (M = Cr, Mo, W; Cp a = Cp, Cp * ; Cp b = Cp, Cp 0 ) 1 and, more recently, of the unsaturated tricarbonyl complexes 1 [Cp * Ni@M(CO) 3 Cp ] (Cp = Cp, Cp 0 ; M = Mo, W) [7] with alkynes [8][9][10][11][12][13][14][15][16]. (Complexes 1 are represented with Ni@M double bonds but the real situation is more complex; a better representation is shown in Scheme 1.…”

Section: Introductionmentioning

confidence: 99%