consider-the-complex-with-the-formula-kconh36co32i-provide-the-name-of-the-compo

Question

Consider the complex with the formula K[Co(NH₃)₆](CO₃)₂.

i. Provide the name of the compound.

ii. Calculate the oxidation number of Co.

iii. Sketch its crystal field energy-level diagram.

iv. Classify the complex as either high-spin or low-spin.

v. Identify the number of unpaired electrons, if any

Accepted Answer

i. +3

ii. potassium hexaamminecobalt(III) carbonate

iii.

Crystal field energy-level diagram for octahedral complexes showing e and t2 sets. .

iv. low-spin complex

v. 0 unpaired electrons

Answer

i. +2

ii. potassium hexaamminecobaltate(II) dicarbonate

iii.

Crystal field energy-level diagram for octahedral complexes with unpaired electrons indicated.

iv. high-spin complex

v. 3 unpaired electrons

Answer

i. +3

ii. potassium hexaamminecobalt(III) carbonate

iii.

Crystal field energy-level diagram for octahedral complexes with unpaired electrons indicated.

iv. high-spin complex

v. 3 unpaired electrons

Answer

i. +2

ii. potassium hexaamminecobaltate(II) dicarbonate

iii.

Crystal field energy-level diagram for octahedral complexes showing e and t2 sets. .

iv. low-spin complex

v. 0 unpaired electrons

Consider the complex with the formula K[Co(NH3)6](CO3)2.i. Provide the name of the compound.ii. Calculate the oxidation number of Co.iii. Sketch its crystal field energy-level diagram.iv. Classify the complex as either high-spin or low-spin.v. Identify the number of unpaired electrons, if any