what are monomeric trihalides and how are they related to lewis acids
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Please find the solution to the asked query:
Monomer trihalides generally belong to third group elements. These are halide compounds which are monomeric in nature. For example AlCl3 is a monomer trihalide which dimerize to give Al2Cl 6 . Similarly BCl3 is also a monomeric trihalide.
Lewis acids are basically electron deficient species. They can readily accept electron from Lewis bases, which are electron rich and can donate electrons. Monomeric trihalides act as Lewis acids.
In BCl3, the central atom boron is electron deficient and has only six electrons. Hence it is termed as Lewis acid. It can readily accept electron from ammonia or its derivatives..
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/images/adduct1.png)
Similarly as Al has an incomplete octet in AlCl3 ., therefore, it can accept lone pair and therefore is a lewis acid
Hope this information will clear your doubts regarding the topic. If you have any other doubts please ask here on the forum and our experts will try to solve them as soon as possible.
Regards
Please find the solution to the asked query:
Monomer trihalides generally belong to third group elements. These are halide compounds which are monomeric in nature. For example AlCl3 is a monomer trihalide which dimerize to give Al2Cl 6 . Similarly BCl3 is also a monomeric trihalide.
Lewis acids are basically electron deficient species. They can readily accept electron from Lewis bases, which are electron rich and can donate electrons. Monomeric trihalides act as Lewis acids.
In BCl3, the central atom boron is electron deficient and has only six electrons. Hence it is termed as Lewis acid. It can readily accept electron from ammonia or its derivatives..
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/images/adduct1.png)
Similarly as Al has an incomplete octet in AlCl3 ., therefore, it can accept lone pair and therefore is a lewis acid
Hope this information will clear your doubts regarding the topic. If you have any other doubts please ask here on the forum and our experts will try to solve them as soon as possible.
Regards