Triphenylaluminum

Triphenylaluminum
Triphenylaluminum
Are common
Systematic ; name	Triphenylaluminum
Chem. formula	Al (C 6 H 5 ) 3
Physical properties
condition	colorless solid
Molar mass	258.29 g / mol
Thermal properties
T. melt.	225; 230 ° C
Classification
Reg. CAS number
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider

Triphenylaluminum is an organoelement substance , an aluminum alkyl derivative with the formula Al (С₆H₅) ₃ , a colorless solid that dissolves in benzene and oxidizes in air.

Content

Getting

The interaction of chlorobenzene and aluminum chloride with magnesium :

{\mathsf {3C_{6}H_{5}Cl+3Mg+AlCl_{3}\ {\xrightarrow {}}\ Al(C_{6}H_{5})_{3}+3MgCl_{2}}}

{\ displaystyle {\ mathsf {3C_ {6} H_ {5} Cl + 3Mg + AlCl_ {3} \ {\ xrightarrow {}} \ Al (C_ {6} H_ {5}) _ {3} + 3MgCl_ {2 }}}}

Interaction of diphenylmercury with aluminum:

{\mathsf {3(C_{6}H_{5})_{2}Hg+2Al\ {\xrightarrow {T}}\ 2Al(C_{6}H_{5})_{3}+3Hg}}

{\ displaystyle {\ mathsf {3 (C_ {6} H_ {5}) _ {2} Hg + 2Al \ {\ xrightarrow {T}} \ 2Al (C_ {6} H_ {5}) _ {3} + 3Hg}}}

Physical Properties

Triphenylaluminium is a solid, colorless substance that oxidizes in air. At room temperature, triphenylaluminium forms dimers (like other organoaluminum compounds), but they are largely dissociated.

Chemical Properties

Reacts with water:

{\mathsf {Al(C_{6}H_{5})_{3}+3H_{2}O\ {\xrightarrow {}}\ Al(OH)_{3}+3C_{6}H_{6}}}

{\ displaystyle {\ mathsf {Al (C_ {6} H_ {5}) _ {3} + 3H_ {2} O \ {\ xrightarrow {}} \ Al (OH) _ {3} + 3C_ {6} H_ {6}}}}

Reacts with acids, alcohols , amines and other proton compounds:

{\mathsf {Al(C_{6}H_{5})_{3}+HO{\text{-}}R\ {\xrightarrow {}}\ (C_{6}H_{5})_{2}AlO{\text{-}}R+C_{6}H_{6}}}

{\ displaystyle {\ mathsf {Al (C_ {6} H_ {5}) _ {3} + HO {\ text {-}} R \ {\ xrightarrow {}} \ (C_ {6} H_ {5}) _ {2} AlO {\ text {-}} R + C_ {6} H_ {6}}}}

Oxidized to phenolate :

{\mathsf {2Al(C_{6}H_{5})_{3}+3O_{2}\ {\xrightarrow {}}\ 2Al(OC_{6}H_{5})_{3}}}

{\ displaystyle {\ mathsf {2Al (C_ {6} H_ {5}) _ {3} + 3O_ {2} \ {\ xrightarrow {}} \ 2Al (OC_ {6} H_ {5}) _ {3} }}}

It forms aluminum benzoate with carbon dioxide :

{\mathsf {Al(C_{6}H_{5})_{3}+3CO_{2}\ {\xrightarrow {}}\ Al(OOC{\text{-}}C_{6}H_{5})_{3}}}

{\ displaystyle {\ mathsf {Al (C_ {6} H_ {5}) _ {3} + 3CO_ {2} \ {\ xrightarrow {}} \ Al (OOC {\ text {-}} C_ {6} H_ {5}) _ {3}}}}

Literature

Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1988. - T. 1. - 623 p.
Ripan R., Chetyanu I. Inorganic chemistry. Chemistry of metals. - M .: Mir, 1971. - T. 1. - 561 p.