Skip to main content
Ch.1 - Structure and Bonding
Wade - Organic Chemistry 9th Edition
Wade9th EditionOrganic ChemistryISBN: 9780135213728당신이 사용하는 게 아니라요?교과서 변경
1장, 문제 17a

Predict the hybridization, geometry, and bond angles for the central atoms in
a. but-2-ene, CH3CH=CHCH3

검증된 단계별 안내
1
Identify the central atoms in but-2-ene. The central atoms are the two carbon atoms involved in the double bond, which are the second and third carbon atoms in the chain.
Determine the hybridization of the central carbon atoms. In but-2-ene, the carbon atoms involved in the double bond are sp² hybridized. This is because each carbon forms three sigma bonds and has one pi bond.
Predict the geometry around the sp² hybridized carbon atoms. The geometry is trigonal planar, which is typical for sp² hybridized atoms.
Estimate the bond angles around the sp² hybridized carbon atoms. In a trigonal planar geometry, the bond angles are approximately 120 degrees.
Consider the overall structure of but-2-ene. The molecule is planar around the double bond, and the geometry and bond angles are consistent with the sp² hybridization of the central carbon atoms.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
3m
도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Hybridization

Hybridization is the process of mixing atomic orbitals to form new hybrid orbitals, which can form sigma bonds or accommodate lone pairs. In but-2-ene, the central carbon atoms involved in the double bond are sp2 hybridized, meaning one s orbital and two p orbitals combine to form three equivalent sp2 orbitals, allowing for a planar structure with 120-degree bond angles.
추천 영상:
10:43
Using bond sites to predict hybridization

Molecular Geometry

Molecular geometry refers to the three-dimensional arrangement of atoms around a central atom. For sp2 hybridized atoms, as in the case of the central carbons in but-2-ene, the geometry is trigonal planar. This means the atoms bonded to the central carbon lie in a single plane, forming a triangular shape with 120-degree angles between them.
추천 영상:
07:44
Molecular Geometry Explained.

Bond Angles

Bond angles are the angles between adjacent bonds at an atom. In but-2-ene, the sp2 hybridization of the central carbon atoms results in bond angles of approximately 120 degrees. This is characteristic of a trigonal planar geometry, where the electron pairs are evenly distributed around the central atom to minimize repulsion, according to VSEPR theory.
추천 영상:
02:46
What is angle strain?