Orbital hybridization. Sigma and pi bonds (4)

Organic chemistry: Hybridization of atomic orbitals: sp3, sp2, and sp hybridizations. Sigma vs. pi bonds. Valence orbitals of unhybridized and hybridized atoms. Valence shell electron pair repulsion theory (VSEPR). Orbital geometry. Molecular geometry: tetrahedral, trigonal pyramidal, bent, trigonal planar, linear. Bond angles. Orbital diagrams for sigma and pi bonds in ethane, ethylene, and acetylene.

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(1) Hybridization of atomic orbitals. Sigma vs. pi bonds
(2) Valence orbitals of unhybridized and hybridized atoms. Orbital geometry of sp3 and sp2 hybridized atoms
(3) Continued. Orbital geometry of sp hybridized atoms. VSEPR and molecular geometry: tetrahedral, trigonal pyramidal. Bond angles
(4) Molecular geometry: bent, trigonal planar, linear.
(5) Orbital diagrams for sigma and pi bonds in ethane, ethylene, and acetylene
(6) Problems

Category:

Education

Tags:

• organic
• chemistry
• hybridization
• atomic
• orbitals
• sp3
• sp2
• sp
• sigma
• pi
• bonds
• atoms
• valence
• shell
• electron
• pair
• repulsion
• theory
• VSEPR
• molecular
• geometry
• tetrahedral
• trigonal
• pyramidal
• bent
• planar
• linear
• bond
• angles
• orbital
• diagrams
• ethane
• ethylene
• acetylene

[nahilhamam]

You taught me in 5 minutes what my teacher couldn't teach me in weeks. YOU"RE AMAZING and if i wasn't a poor college kid I'd donate thousands to you. Thanks for these tutorials.

[galelioZz]

AMAZINGGGGG !!

[thunderboltkrish]

at 4:28 the shape has been described as trigonal planar den y is the molecule getting a 3d perspective

[dreazvideos]

GREAT!!! I love this guy :) I understand now, thank you so much!!

[anabeisycruz16]

@anikazangel1 You'll have two pi bonds and one sigma bond if all three p-orbitals are involved.

:)

[anikazangel1]

when two p orbitals overlap, isn't a pi bond? not a sigma bond?

[Boca180]

There is one simple mistake that he says that threw me off but he wrote it correctly on the board. He says that there are 3 molecular geometries for when 4 for things are attached to an atom 1) tetrahedral , 2) TRIGONAL PLANAR (x), 3) Bent. The second one he meant to say trigonal PYRAMIDAL...

[GreenlandCat]

i wish i could have paid my tuition to you

[lora9009]

@Friendsforeverforme its a similar case jus like NH3 but with 2 lone pairs .....the 2 lone pairs have greater repulsion then lone pair-bond pair > bond pair-bond pair....water have 2 lone pairs and these two lone pairs have greater repulsion causing the H-H bond to come close and make an angle of 104.5

[tootyrc]

@lilypeasize p orbitals does not denote that there are or aren't any lone pairs..refer back to part 2 of this video series, he explains it quite clearly

[lilypeasize]

why does a molecule still have p orbitals if there are no lone pairs of electrons.... since a p orbital describes probability of electron density. if there is zero probability of an electron being there, and the p orbital is empty... why do is there still a p orbital in BF3 or two p orbitals in BeF2???