ABC26PH1239 · Quantum Chemistry
Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Huckel MO Theory · Exam: NET JUNE 2013 · Marks: 2 · Difficulty: Medium
Identify the Huckel determinant for cyclobutadiene
(a)$\left|\begin{array}{cccc}\alpha-\mathrm{E} & \beta & 0 & 0\\ \beta & \alpha-\mathrm{E} & \beta & 0\\ 0 & \beta & \alpha-\mathrm{E} & \beta\\ 0 & 0 & \beta & \alpha-\mathrm{E}\end{array}\right|$
(b)$\left|\begin{array}{cccc}\alpha-\mathrm{E} & \beta & 0 & \beta\\ \beta & \alpha-\mathrm{E} & \beta & 0\\ 0 & \beta & \alpha-\mathrm{E} & \beta\\ \beta & \beta & 0 & \alpha-\mathrm{E}\end{array}\right|$
(c)$\left|\begin{array}{cccc}\alpha-\mathrm{E} & \beta & 0 & \beta\\ \beta & \alpha-\mathrm{E} & \beta & 0\\ 0 & \beta & \alpha-\mathrm{E} & \beta\\ \beta & 0 & \beta & \alpha-\mathrm{E}\end{array}\right|$
(d)$\left|\begin{array}{cccc}\alpha-\mathrm{E} & \beta & 0 & \beta\\ \beta & \alpha-\mathrm{E} & \beta & 0\\ 0 & \beta & \alpha-\mathrm{E} & \beta\\ 0 & 0 & \beta & \alpha-\mathrm{E}\end{array}\right|$
Answer
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Explanation
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