In the hemoglobin molecule that carries oxygen molecules in blood, iron has 6 single bonds to surrounding atoms. What is the most likely geometry of these bonds to iron?
A)Planar
B)Linear
C)Tetrahedral
D)Octahedral
E)Trigonal pyramidal

Question

Quizplus · Accepted Answer

Iron in hemoglobin has 6 single bonds, indicating it has a coordination number of 6. The most common geometry for a coordination number of 6 is octahedral, where the central atom (iron in this case) is surrounded by six ligands (atoms bonded to the central atom).

In the Hemoglobin Molecule That Carries Oxygen Molecules in Blood