Figure 2.
Three ways of binding of ZrIV(Pc) on a small region of GO are representative of the several possible binding modes The ZrIV(TPP) bind similarly. 3-dimensional renderings are approximated from MM2 calculations (top, left to right) for internal diol, side carboxylates, and side diols; grey=C, blue=N, red=O, dark grey=ZrIV, H left out for clarity.