Question

6. The structure of ethylene indicates that the HCH and HCC angles do not correspond exactly to the sp2 hybrid orbital angle of 120°: Y Н 121.7 На 116.6 Н, H Use the coordinate system shown so that the molecule lies in the YZ plane (a) Calculate the coefficients of the three hybrid orbitals around carbon atom 2. Label the hybrid orbitals 4a, Hp, and Hc where these hybrid orbitals point toward Ha, Hi, and Ci, respectively. Each of the hybrid orbitals will be of the general form 4= cj2pzc22pyca2s. Be sure that each hybrid orbital is normalized and orthogonal to the other two hybrid orbitals. |(b) Calculate the percent contribution of 2p;, 2py, and 2s in each of the hybrid orbitals answer (a) a 0.436 2p2 + 0.707 2p+0.556 2s D=0.436 2p,- 0.707 2py+ 0.556 2s c=-0.786 2p2+0.618 2s (b) a and : 19% 2p2, 50% 2p,, 31% 2s c : 62% 2pz, 38% 2s 6.

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Answer 1

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