The elements at the following oxidation can produce low spin octahedral complexes:
Hf (II); W (II); Os (VI) b) V (IV); Fe (III); Ni (IV)
c) Cr (II); Tc (III); Ru (IV) d) Nb (III); Mn (III); Co (III)
Interpretation (just explain the plan chosen)
Electronic configuration of Cr (II) with 3d4, Tc (III) has 4d4, Ru (IV) there should 4d4 if B> P, then their complex octahedral in low spin state: d4do.
question 17
Select the correct sentence: for complex [Co (NH3) 6] 3+ said: = 273.2kJ / mol, P = 250.5kJ / mol
Not enough data to conclude on complex
complex on the low spin complex, diamagnetic
complex on the high spin complex, paramagnetic
complex on the high spin complex, diamagnetic
Question 18
Write the electron configuration complexity [CoF6] 3- under crystal field theory and concluded it was complex spin spin high or low, said it was the paramagnetic complex.
low spin
high spin
can not define
high spin
20. Choose the correct statement about the complex [MnBr4] 2:
1. Complex called: tetrabromomangan (II).
2. This is the paramagnetic complex.
3. The complex may have high or low spin configuration.
4. The complex is a high spin complex under crystal field theory.
A) Only 2, 4 correct b) 1, 2, 4 correct c) 1, 3 right d) 2.3 correct
Question 18: Choose the correct statement about the complex [MnBr4] 2, said it was the paramagnetic complex:
the complex is called: tetrabromomanganat (II).
the complex has a tetrahedral configuration of the orbital complex by 4s and 4p 4 orbital hybridization to form a covalent bond sp3theo theory.
the complex has configuration is square because of the orbital complex 3d, 4s, and 4p formed hybrid orbitals d2sp 4.
the complex is a high spin complex under crystal field theory. 1, 2, 4 right 1, 3, 4 right 1, 3 right 1, 2 right Question 21: Select speech right about the nature of the complex: (1) K2 [Zn (OH) 4], (2) Hg [Co (SCN) 4] (Co2 +) 1) K2 [ Zn (OH) 4] is a tetrahedral complex, diamagnetic, Hg [Co (SCN) 4] tetrahedral complexes are paramagnetic. 2) Hg [Co (SCN) 4] have stable energy than the crystalline sound complex K2 [Zn (OH) 4] 3) K2 [Zn (OH) 4] and Hg [Co (SCN) 4] complex is colorless. 1 and 2, right 2, 3 right 1, 3 correct no right answer. 22. Choose the correct sentence statement about the complex Cu2 + crystal field theory: 1) the octahedral complexes of Cu (II) 2 d electron configuration at different ligand complexes with the weak and the strong. 2) the complex nature of Cu2 + only 1 single configuration is d6d4.
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