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Organoactinide chemistry AI simulator
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Hub AI
Organoactinide chemistry AI simulator
(@Organoactinide chemistry_simulator)
Organoactinide chemistry
Organoactinide chemistry is the science exploring the properties, structure, and reactivity of organoactinide compounds, which are organometallic compounds containing a carbon to actinide chemical bond.
Like most organometallic compounds, the organoactinides are air sensitive and need to be handled using the appropriate methods.
Most common organoactinide complexes involve π-bonding with ligands such as cyclopentadienyl, but there are a few exceptions with σ-bonding, namely in thorium and uranium chemistry as these are the most easily handleable elements of this group.
Attempts to synthesize uranium alkyls were first made during the Manhattan project by Henry Gilman, inspired by the volatility of main group organometallics. However he noticed that these compounds tend to be highly unstable.
Marks and Seyam attempted to synthesize them from UCl4 using organolithium reagents, but these decomposed quickly.
In 1989, a group finally synthesized a homoleptic complex with trimethylsilyl groups: U[CH(SiMe3)2]3. Since then, variants of higher coordination numbers such as [Li(TMEDA)]2[UMe6] have also been synthesized.
On the other hand, only one homoleptic thorium alkyl is known. The seven coordinate heptamethylthorate(IV) anion was synthesized in 1984 using a similar procedure to the equivalent uranium complex.
Mixed phosphine containing complexes of thorium and uranium tetramethyls have also been made, using dmpe as the organophosphorus ligand stabilising the structure (amides can also assume this role).
Organoactinide chemistry
Organoactinide chemistry is the science exploring the properties, structure, and reactivity of organoactinide compounds, which are organometallic compounds containing a carbon to actinide chemical bond.
Like most organometallic compounds, the organoactinides are air sensitive and need to be handled using the appropriate methods.
Most common organoactinide complexes involve π-bonding with ligands such as cyclopentadienyl, but there are a few exceptions with σ-bonding, namely in thorium and uranium chemistry as these are the most easily handleable elements of this group.
Attempts to synthesize uranium alkyls were first made during the Manhattan project by Henry Gilman, inspired by the volatility of main group organometallics. However he noticed that these compounds tend to be highly unstable.
Marks and Seyam attempted to synthesize them from UCl4 using organolithium reagents, but these decomposed quickly.
In 1989, a group finally synthesized a homoleptic complex with trimethylsilyl groups: U[CH(SiMe3)2]3. Since then, variants of higher coordination numbers such as [Li(TMEDA)]2[UMe6] have also been synthesized.
On the other hand, only one homoleptic thorium alkyl is known. The seven coordinate heptamethylthorate(IV) anion was synthesized in 1984 using a similar procedure to the equivalent uranium complex.
Mixed phosphine containing complexes of thorium and uranium tetramethyls have also been made, using dmpe as the organophosphorus ligand stabilising the structure (amides can also assume this role).
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