>>12916473No, the math isn't useful at all in graduate level chem. Like you said, they teach you all of the math that you need in the courses that need them. Even then, nobody really cares about the courses you take during your PhD anyways.. you're not even expected to get A's in them (you still should.)
You don't need a semester's worth of work in linear algebra to construct a Hamiltonian and you don't need two semesters of differential equations to solve Schrodinger's equation. The physics is more helpful in most cases if anything, but even then its minimal. I am not hugely sure about anything that leans towards the biochem/chemical bio side, I am doing my PhD in organic chemistry. Even so, it's not like you can get your PhD in straight up Pchem anymore, you have to actually do something with it. You're not gonna turn in a proposal with 25 pages of step by step solving the radial Schrodinger's equation or anything