题目

General Inorganic Chemistry (CHEM2007 UNUK) (FYR1 24-25) Test Yourself 1

多项选择题

For the diagram above, select which of the statements below are correct for the orbital and symmetry labels when the ligands are coordinated.

选项

A.a. The symmetry label for the orbitals at higher energy is eg

B.b. Orbitals located at higher energy are the dxz and dyz orbitals

C.c. The symmetry label for the orbitals at lower energy is eg

D.d. The symmetry label for the orbitals at lower energy is t2g

E.e. Orbitals located at higher energy are the dz2 and dx2-y2 orbitals

F.f. Orbitals located at lower energy are the dz2, dx and dx2-y2 orbitals

G.g. The symmetry label for the orbitals at higher energy is t2g

H.h. Orbitals located at lower energy are the dxy, dxz and dyz orbitals

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标准答案

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思路分析

To evaluate the statements, I’ll first recall the standard orbital splitting and symmetry labels for an octahedral-like coordination: - In an octahedral field, the t2g set (dxy, dxz, dyz) lies lower in energy, while the eg set (dz2, dx2−y2) lies higher in energy. The symmetry labels for these sets are t2g for the lower-energy trio and eg for the higher-energy pair. - With ligands coordinated, the energy ordering and the corresponding symmetry labels are determined by crystal field effects and ligand in......Login to view full explanation

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