The tag has no wiki summary.

learn more… | top users | synonyms

0
votes
1answer
23 views

“Ate” complexes

I understand that ate complexes can result from the addition of carbanions to neutral aluminum alkyls. I was wondering what the balanced equation for this reaction is/what the structure would be in ...
1
vote
1answer
52 views

Why are organolithium and organomagnesium compounds nucleophilic in nature?

My textbook doesn't say anything about this but does say that on addition of organolithium compounds to carbon dioxide, they give ketones and not carboxylic acids like grignard reagents. This has been ...
5
votes
1answer
51 views

Molecular Oxygen in Suzuki Homocoupling

I'm curious as to the role of molecular oxygen in Suzuki homocoupling reactions, as discussed here. In a standard Suzuki cross-coupling reaction, molecular oxygen is not required. However, this paper ...
1
vote
1answer
67 views

Predicting bond-strength of metal carbonyls

The metal carbonyls (and similar organometallic compounds) involve a combination of sigma bond, a pi bond and backbonding. The bond strengths under consideration are the metal-carbon bond and the ...
3
votes
1answer
35 views

Would trans hydride ligands on a metal complex be beneficial for a catalyst?

Would trans hydride ligands on a metal complex be beneficial for a catalyst? Such as alkene metathesis or hydrodefluorination
8
votes
1answer
80 views

Do eta-4 benzene ligands participate in Diels Alder or other cycloadditions?

While refreshing myself on denticity to answer another question, I started to read about hapticity, which is the coordination of a ligand through multiple continuous atoms. A famous case is ferrocene ...
0
votes
2answers
49 views

Reaction between n-butylithium and either an aromatic bromide or an alkylbromide

What exactly happens? Does the butylithium chain add to the carbon where the bromine is attached? or do the 2 undergo halogen metal exchange?
1
vote
1answer
55 views

Overlapping oxygens in crystal structure — what's going on?

This is a screenshot of a portion of a metal organic framework (MOF). These are two oxygens of two NMP solvent molecules. What I am wondering is why they are so close and overlapping like this. I ...
6
votes
3answers
960 views

Why do Organolithium or Grignard reagents act as nucleophiles and not as bases with aldehydes and ketones

I've read entire Chapter 14: Organometallic Compounds of Francis Carey's "Organic Chemistry" but I still didn't get an answer to my question. Quote from the book: Because of their basicity ...
6
votes
2answers
2k views

Why do Magnesium and Lithium form *covalent* organometallic compounds?

Lithium and magnesium are Group 1 and Group 2 elements respectively. Elements of these groups are highly ionic, and I've never heard of them forming significantly covalent inorganic compounds. Yet ...
8
votes
1answer
186 views

Why does benzene bend in this reaction?

From here I can see why hapticity changes here, but not why it is necessary for the benzene ring to bend. The resonance energy of benzene is pretty large, and there's no balancing increase in ...