What is the calculated spin multiplicity () of a triplet carbene? — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

Spin multiplicity $M = 2S + 1$. In a triplet carbene, there are two unpaired electrons with parallel spins, so the total spin quantum number $S = (+1/2) + (+1/2) = 1$. Therefore, $M = 2(1) + 1 = 3$.