ABC26PH0144 · Quantum Chemistry

Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Huckel MO Theory · Exam: CSIR-NET 2013 · Marks: 2 · Difficulty: Easy

Identify the Huckel determinant for cyclobutadiene
(a)
\[ \left|\begin{array}{cccc}\alpha-E & \beta & 0 & 0 \\ \beta & \alpha-E & \beta & 0 \\ 0 & \beta & \alpha-E & \beta \\ 0 & 0 & \beta & \alpha-E\end{array}\right| \]
(b)
\[ \left|\begin{array}{cccc}\alpha-E & \beta & 0 & \beta \\ \beta & \alpha-E & \beta & 0 \\ 0 & \beta & \alpha-E & \beta \\ \beta & \beta & 0 & \alpha-E\end{array}\right| \]
(c)
\[ \left|\begin{array}{cccc}\alpha-E & \beta & 0 & \beta \\ \beta & \alpha-E & \beta & 0 \\ 0 & \beta & \alpha-E & \beta \\ \beta & 0 & \beta & \alpha-E\end{array}\right| \]
(d)
\[ \left|\begin{array}{cccc}\alpha-E & \beta & 0 & \beta \\ \beta & \alpha-E & \beta & 0 \\ 0 & \beta & \alpha-E & \beta \\ 0 & 0 & \beta & \alpha-E\end{array}\right| \]
Answer
Answer (as printed): C
Explanation
No explanation was printed for this question.

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