Syntesis of [(Ph3P)2CuS2MoS2Cu(PPh3)]

  • Thread starter Bibinou
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In summary, the conversation is about a person seeking help with equilibrating a synthesis reaction involving various compounds and solutions. They are having difficulty understanding and explaining the process, but have found some information from the Department of Chemistry in Australia. The conversation also mentions different methods for preparing the compounds involved in the reaction.
  • #1
Bibinou
12
0
Good morning,

I have problems in equilibrating a synthesis reaction. The pathway is given :
(NH4)6Mo7024.4H2O +28 H2S+8 NH4OH--> 7(NH4)2MoS4 + 36 H20
(NH4)2MoS4 (CuCN/KCN/[Pr4N)Br]) --> (Pr4N)2[(CN)CuS2MoS2]
(Pr4N)2[(CN)CuS2MoS2] + Cu(PPh3)2(NO3) --> [(Ph3P)2CuS2MoS2Cu(PPh3)]

I don't really see how to equilibrate the 2 last ones and I have also problems to explain really what occurs during this synthesis. I found a contribution from the department of chemistry in Australia. The follwing paragraph explains how works the second reaction :

Synthesis of (n-Pr4N)2[(CN)CuS2MoS2]

a solution of KCN (O.64g 9.8mmol) in H2O (7 cm3) is added to a suspension of NH4CuMoS4 (3g 9.8mmol) in H2O (30 cm3) to produce a deep red solution.
A solution of (n-Pr4N)Br (5.2g 19.6 mmol) in H20 (10cm3) is added dropwise producing a red precipitate.
The mixture is stirred 15min before the compound which is washed with H2O, EtOH and ether and dried in air, is isolated. (yield 65% 4.35g)

Ph4As+ et Et4N+ may be prepared in a similar manner. The compounds may also be prepared by combinating equimolar aqueous solution of (NH4)2[MoS4] and [Cu(CN)x ]^(1-x) (produced by combinatingCuSO4.5H20 orCuCN with KCN) followed by the addition of 2-3 equivalents of the quaternary cation.

Thank you very much for your help.
 
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  • #2
Hello
Did you unserstand me good... because I come from France and I hope my English il good enough to explain where are my problems :rolleyes:
 
  • #3
I don't believe we have a specialist here in organometallic synthesis, in addition I'm not quite sure what you're referring to by "equilibriate."
 
  • #4
In fact I mean "balance"
 
  • #5
balancing the reaction equation stoichiometrically?
 
  • #6
yes stoichiometrically! otherwise it's not "balancing"
 

1. What is the purpose of the synthesis of [(Ph3P)2CuS2MoS2Cu(PPh3)]?

The purpose of this synthesis is to create a molecule that can serve as a catalyst in various chemical reactions. The copper and molybdenum atoms in the molecule act as active sites for catalyzing reactions, while the phosphorus and sulfur atoms provide stability and support for the molecule.

2. What are the key steps in the synthesis of [(Ph3P)2CuS2MoS2Cu(PPh3)]?

The key steps in the synthesis involve reacting copper and molybdenum compounds with phosphorus and sulfur compounds to form the desired molecule. This is typically done in a series of reactions, with purification and characterization steps in between to ensure the correct structure of the final product.

3. What are the applications of [(Ph3P)2CuS2MoS2Cu(PPh3)]?

This molecule has various applications in organic synthesis, including its use as a catalyst in cross-coupling reactions and as a reagent in the preparation of organometallic complexes. It also has potential applications in the production of pharmaceuticals and materials.

4. Can [(Ph3P)2CuS2MoS2Cu(PPh3)] be modified for different purposes?

Yes, the structure of this molecule can be modified by changing the substituents on the phosphorus and sulfur atoms, or by incorporating different metals in place of copper and molybdenum. This allows for the creation of tailored catalysts for specific reactions.

5. What challenges are involved in the synthesis of [(Ph3P)2CuS2MoS2Cu(PPh3)]?

One of the main challenges in the synthesis of this molecule is controlling the reaction conditions to ensure the formation of the desired product. The purification and characterization steps can also be complex and time-consuming, and the yield of the final product can be affected by side reactions. Additionally, the cost of the starting materials and the potential toxicity of some of the compounds involved can also pose challenges.

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