consider-the-octahedral-complex-nitrenbrcl2-where-tren-has-a-formula-of-nch2ch2n

Question

Consider the octahedral complex [Ni(tren)BrCl]²⁺, where tren has a formula of N(CH₂CH₂NH₂)₃ and can be simplified as:

Structure of tren ligand showing four nitrogen donor atoms. .

(a) The tren is tetradentate. Define tetradentate and explain how tren is considered to be tetradentate.

(b) Sketch all possible stereoisomers of [Ni(tren)BrCl]²⁺ and classify each stereoisomer as either chiral or achiral.

Accepted Answer

Tetradentate means that there are 4 donor atoms in the ligand. Tren is tetradentate because of its 4 N atoms which act as donor atoms.

Four chiral stereoisomers of [Ni(tren)BrCl]2+ labeled as all chiral.

Answer

Tetradentate means that there are 3 donor atoms in the ligand. Tren is tetradentate because of its 3 N atoms which act as donor atoms.

Four achiral stereoisomers of [Ni(tren)BrCl]2+ labeled as all achiral.

Answer

Tetradentate means that there are 3 donor atoms in the ligand. Tren is tetradentate because of its 3 N atoms which act as donor atoms.

Two chiral and two achiral stereoisomers of [Ni(tren)BrCl]2+ labeled accordingly.

Answer

Tetradentate means that there are 4 donor atoms in the ligand. Tren is tetradentate because of its 4 N atoms which act as donor atoms.

Two chiral and two achiral stereoisomers of [Ni(tren)BrCl]2+ labeled accordingly.