Cationic and neutral four-coordinate alkylidene complexes of vanadium(IV) containing short V:C bonds

Kinetically stable, four-coordinate V(IV) neopentylidene complexes such as [(Nacnac)V:CHtBu(THF)](BPh4) (Nacnac- = [Ar]NC(Me)CHC(Me)N[Ar], Ar = 2,6-(CHMe2)2C6H3), which was prepd. by oxidatively induced alpha-H abstraction from [(Nacnac)V(CH2tBu)2] with AgBPh4 in THF, contain the shortest V:C bonds known to date. [on SciFinder (R)]


Published in:
Angewandte Chemie International Edition, 43, 24, 3156-3159
Year:
2004
Keywords:
Note:
CAN 141:174259 29-10 Organometallic and Organometalloidal Compounds Department of Chemistry and Molecular Structure Center,Indiana University,Bloomington,IN,USA. Journal 1433-7851 written in English. 736137-82-9P Role: PRP (Properties), RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (crystal structure; prepn. and anion substitution or thermal elimination reaction of vanadium alkylidene complex); 675620-40-3P Role: PRP (Properties), RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (crystal structure; prepn. and thermal cross-metathesis reaction of vanadium alkylidene complex); 736137-81-8P Role: PRP (Properties), SPN (Synthetic preparation), PREP (Preparation) (crystal structure; prepn. from thermal cross-metathesis reaction of vanadium alkylidene complex); 736137-83-0P Role: PRP (Properties), SPN (Synthetic preparation), PREP (Preparation) (crystal structure; prepn. from thermal elimination reaction of vanadium alkylidene complex); 2923-28-6 (Silver triflate) Role: RCT (Reactant), RACT (Reactant or reagent) (ligand substitution of vanadium alkylidene complex with silver triflate); 736137-78-3P Role: PRP (Properties), RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (mol. structure; prepn. and anion substitution or thermal elimination reaction of vanadium alkylidene complex); 736137-80-7P Role: PRP (Properties), SPN (Synthetic preparation), PREP (Preparation) (mol. structure; prepn. from thermal elimination reaction of vanadium alkylidene complex); 14637-35-5 (Silver tetraphenylborate) Role: RGT (Reagent), RACT (Reactant or reagent) (oxidn. reaction of dialkylvanadium with silver tetraphenylborate to give vanadium alkylidene complex); 736137-76-1P Role: RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (prepn. and oxidn. reaction of dialkylvanadium with silver tetraphenylborate to give vanadium alkylidene complex); 736137-79-4P Role: SPN (Synthetic preparation), PREP (Preparation) (prepn. from ligand substitution of vanadium alkylidene complex with silver triflate); 7412-67-1 (Neopentyllithium); 215715-71-2 Role: RCT (Reactant), RACT (Reactant or reagent) (reaction of dichlorovanadium complex with neopentyllithium to give dialkylvanadium complex and subsequently vanadium alkylidene complex)
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