Dipole moment of PCl2F3 is non zero while dipole moment of PCl3F2 is zero why?

According to bent rule more electronegative atom or group attached those orbital have minimum S- character. There is in Trigonal bipiramidal (TBP) Geometry we known that axial orbital hare no S- character so F atom attached with axial positions only. Hence PCl3F2 has zero dipole moment.

Related Questions:

What is Bent’s rule of hybridization?

Which of the following compound have longest (S=O)bond length , O=SF2, O=SCl2, O=SBr2.

Why Bond length of O-O is greater in H2O2 than O2F2?

How to arrange increasing (C-H) bond length in increasing order and H-C-F bond angle in the given compounds, CH4, CH3F, CH2F2 and CHF3 ?

BENT'S RULE OF HYBRIDISATION:

What is Banana bond (3C-2e bridge bond) ? Explaine with suitable examples.

3C-2e BOND OR BANANA BOND:

EXAMPLE FORMATION OF B₂H₆:

(1) Formation of 3C-2e bond in B₂H₆ is best explain by MOT and total number of bond in B₂H₆ is 6 (3C-2e=2 and 3C-4e=4)

(2) Bridge bonds are longer than terminal bond because at bridge bonds electrons are delocalized at three centres

(3)  Bond energy (441kj/mole) of B-H-B bond is greater than bond energy (381 K j/mole) of   B-H bond.

(4) Hybridization of B atom is sp3, so non planer, and non polar (U=0)

(5)  B₂H₆ Methylated up to B₂H₂ Me₄

(6) B₂H₆ is hypovalent molecule hence act as Lewis acid and undergoes two type of cleavage when react with Lewis base

What is bridge bond ? explaine 3C-4e bridge bond with suitable examples .

 3C-4e BOND or 3C-4e BRIDGE BOND:

Al₂Cl₆ Dimmerised by 3C-4e bond bridge bond:

Al₂Cl₆ is neither hypovalent nor hypovalent rather its octet is complete. We will used  MOT here  it cannot act as Lewis acid  due to crowding in spite having vacant d orbital’s however Alcl₃ act as Lewis acid.

Al2Cl6 contains six bond having two bridge bond(3c-4e) and four bond is (2C-2e)

Boron do not formed bridge bond because boron experience steric crowding.