What is the structure and structural characteristic of dichlorine heptaoxide (Cl2O7)?

Avarage oxidation state of Chlorine in Cl₂O₇ is one of the common oxidation state of the chlorine so there is (Cl-O-Cl) Oxy-linkage will be present. And one of oxygen atom is shared by both of chlorine atoms and rest of the oxygen atoms equally distributed.

The whole molecule dichlorine heptaoxide (Cl₂O₇) is non planer and polar and oxygen aotm of (Cl-O-Cl) oxy-linkage does not involve in delocalization due to maximum repulsion hence two Cl-O bond have equal length and bond order may be/equal to one while other six Cl=O bond have eqaual bond length.

In dichlorine heptaoxide (Cl₂O₇) , two ClO₄ group connected with an oxygen atom which is sp3 hybridised (non planer) and bond angle may be expected 109⦁28’ but actually due to the presence of two lone pair on oxygen atom the Cl-O-Cl bond angle deviated from ideal and it may be greater (119⦁) than ideal bond angle.

Question (1): Number of sigma  and pi bonds present in Cl₂O₇ is/ are ....?

Answer: Number of sigma and pi bond present in Cl₂O₇ are (8) and (6) repectively.

Question(2):What is the anhydride of  HClO4 ?

Answer: Cl2​O7​ is the anhydride of  HClO4

Question (3):Number of equivalent Cl-O bond in Cl₂O₇ is/are….

Answer Number of equivalent Cl-O bond in Cl₂O₇ are (2) two.

 

Question(4):Number of equivalent Cl=O bond in Cl₂O₇ is/are….

Answer:Number of equivalent Cl=O bond in Cl₂O₇ are (6) six.

Related Questions:

(1) Why halogens are insoluble in water ?

(2) Is F2 bond is stronger than Br2 ?

(3) Which is best known pseudohalide ?

(4) Iodine forms I3- but F2 does not form F3- ions. Why?

(5) Number of lone pair present at central atom of I3- ion and also give hybridisation and shape of ion?

(6) How many maximum atoms of IF7 are present in the same plane ?

(7) What are the Pseudohalogens or halogenoids?

(8) What are Pseudohalides ? and What is similarity with halides?

(9) Although electron affinity of chlorine is higher than fluorine, yet fluorine act as better oxidizing agent than chlorine? Explain.

(10) Although electron affinity of chlorine is higher than fluorine, yet fluorine act as better oxidizing agent than chlorine? Explain.

(11) Why chlorine trifluoride (ClF3) exists but fluorine trichloride (FCl3) does not?

(12) Why Chlorine (Cl2) bleaches a substance permanently but sulphuredioxide (SO2) does it temporarily?

(13) What is the correct order of electronegativity of Cl atoms in HClO, HClO2, HClO3 and HClO4 ?

(14) How does the thermal stability of oxy acids of chlorine increase with an increase in the oxidation state of chlorine atom ?

(15) Which of the following is a strongest acid among oxy acids of chlorine and why? "HClO, HClO2, HClO3, HClO4"

(16) Which will have very fast tendency to dimerized ClO2 or NO and why?

(17) Which of the following is a strongest acid among oxy acids of chlorine and why? "HClO, HClO2, HClO3, HClO4"